./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-15/cstrncat_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_0155d148-7216-4ead-a473-50be79d61ae4/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/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_0155d148-7216-4ead-a473-50be79d61ae4/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-15/cstrncat_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/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 64bit --witnessprinter.graph.data.programhash bccafd118bd3a0a83ff8db4cf42e66a78381136beaa46d7482d6d8b6c55b738f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:40:44,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:40:44,222 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2024-12-06 01:40:44,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:40:44,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:40:44,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:40:44,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:40:44,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:40:44,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:40:44,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:40:44,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:40:44,251 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 01:40:44,251 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 01:40:44,251 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-06 01:40:44,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:40:44,251 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:40:44,251 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:40:44,251 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:40:44,252 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:40:44,252 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:40:44,252 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:40:44,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:40:44,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:40:44,252 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:40:44,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:40:44,252 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:40:44,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:40:44,253 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_0155d148-7216-4ead-a473-50be79d61ae4/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bccafd118bd3a0a83ff8db4cf42e66a78381136beaa46d7482d6d8b6c55b738f [2024-12-06 01:40:44,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:40:44,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:40:44,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:40:44,517 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:40:44,517 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:40:44,518 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/termination-15/cstrncat_reverse_alloca.i [2024-12-06 01:40:47,113 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/bin/ukojak-verify-CZk0znPC7b/data/7e84cc3b7/9675b839e53248c7a38176b8e1e7095b/FLAG9e9ba3ce1 [2024-12-06 01:40:47,364 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:40:47,365 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/sv-benchmarks/c/termination-15/cstrncat_reverse_alloca.i [2024-12-06 01:40:47,373 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/bin/ukojak-verify-CZk0znPC7b/data/7e84cc3b7/9675b839e53248c7a38176b8e1e7095b/FLAG9e9ba3ce1 [2024-12-06 01:40:47,692 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/bin/ukojak-verify-CZk0znPC7b/data/7e84cc3b7/9675b839e53248c7a38176b8e1e7095b [2024-12-06 01:40:47,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:40:47,694 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:40:47,696 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:40:47,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:40:47,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:40:47,699 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:40:47" (1/1) ... [2024-12-06 01:40:47,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c1be53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:47, skipping insertion in model container [2024-12-06 01:40:47,700 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:40:47" (1/1) ... [2024-12-06 01:40:47,721 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:40:47,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:40:47,933 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:40:47,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:40:47,994 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:40:47,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:47 WrapperNode [2024-12-06 01:40:47,994 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:40:47,995 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:40:47,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:40:47,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:40:48,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:47" (1/1) ... [2024-12-06 01:40:48,009 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:47" (1/1) ... [2024-12-06 01:40:48,027 INFO L138 Inliner]: procedures = 152, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2024-12-06 01:40:48,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:40:48,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:40:48,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:40:48,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:40:48,033 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:47" (1/1) ... [2024-12-06 01:40:48,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:47" (1/1) ... [2024-12-06 01:40:48,035 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:47" (1/1) ... [2024-12-06 01:40:48,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:47" (1/1) ... [2024-12-06 01:40:48,040 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:47" (1/1) ... [2024-12-06 01:40:48,041 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:47" (1/1) ... [2024-12-06 01:40:48,044 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:47" (1/1) ... [2024-12-06 01:40:48,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:47" (1/1) ... [2024-12-06 01:40:48,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:47" (1/1) ... [2024-12-06 01:40:48,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:40:48,049 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:40:48,049 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:40:48,049 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:40:48,050 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:47" (1/1) ... [2024-12-06 01:40:48,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:40:48,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:40:48,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:40:48,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:40:48,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 01:40:48,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 01:40:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 01:40:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 01:40:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:40:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:40:48,169 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:40:48,171 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:40:48,348 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-12-06 01:40:48,348 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:40:48,394 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:40:48,394 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-06 01:40:48,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:40:48 BoogieIcfgContainer [2024-12-06 01:40:48,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:40:48,395 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:40:48,395 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:40:48,402 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:40:48,402 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:40:48" (1/1) ... [2024-12-06 01:40:48,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:40:48,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:48,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2024-12-06 01:40:48,456 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2024-12-06 01:40:48,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 01:40:48,458 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:48,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:48,583 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 01:40:48,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:48,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2024-12-06 01:40:48,618 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2024-12-06 01:40:48,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 01:40:48,619 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:48,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:48,749 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 01:40:48,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:48,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2024-12-06 01:40:48,777 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2024-12-06 01:40:48,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 01:40:48,778 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:48,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:49,116 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 01:40:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:49,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2024-12-06 01:40:49,361 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-12-06 01:40:49,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 01:40:49,363 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:49,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:49,418 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 01:40:49,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:49,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2024-12-06 01:40:49,556 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2024-12-06 01:40:49,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 01:40:49,556 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:49,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:49,740 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 01:40:50,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:50,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2024-12-06 01:40:50,263 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2024-12-06 01:40:50,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 01:40:50,264 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:50,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:50,338 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 01:40:50,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:50,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2024-12-06 01:40:50,519 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2024-12-06 01:40:50,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 01:40:50,519 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:50,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:50,914 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 01:40:51,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:51,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2024-12-06 01:40:51,863 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-12-06 01:40:51,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 01:40:51,864 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:51,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:51,895 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 01:40:51,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:51,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2024-12-06 01:40:51,912 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2024-12-06 01:40:51,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 01:40:51,912 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:51,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:52,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:40:53,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:53,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2024-12-06 01:40:53,579 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-12-06 01:40:53,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:40:53,580 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:53,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:53,596 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 01:40:53,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:53,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2024-12-06 01:40:53,605 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-12-06 01:40:53,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:40:53,605 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:53,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:53,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:54,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:40:55,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:55,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 31 transitions. [2024-12-06 01:40:55,088 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-12-06 01:40:55,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:40:55,088 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:55,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:55,268 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 01:40:55,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:55,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2024-12-06 01:40:55,917 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2024-12-06 01:40:55,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:40:55,918 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:55,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:56,309 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 01:40:58,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:58,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 33 states and 40 transitions. [2024-12-06 01:40:58,961 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2024-12-06 01:40:58,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 01:40:58,962 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:58,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:58,982 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 01:40:59,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:59,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 37 states and 46 transitions. [2024-12-06 01:40:59,670 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2024-12-06 01:40:59,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 01:40:59,670 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:59,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:59,798 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 01:41:01,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:41:01,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 41 states and 51 transitions. [2024-12-06 01:41:01,255 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2024-12-06 01:41:01,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 01:41:01,256 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:41:01,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:41:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:41:01,271 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 01:41:01,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:41:01,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 43 states and 57 transitions. [2024-12-06 01:41:01,297 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2024-12-06 01:41:01,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 01:41:01,297 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:41:01,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:41:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:41:01,319 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 01:41:01,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:41:01,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 45 states and 64 transitions. [2024-12-06 01:41:01,346 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2024-12-06 01:41:01,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 01:41:01,347 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:41:01,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:41:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:41:01,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:41:01,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:41:01,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 46 states and 65 transitions. [2024-12-06 01:41:01,918 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2024-12-06 01:41:01,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 01:41:01,919 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:41:01,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:41:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:41:02,209 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 01:41:04,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:41:04,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 51 states and 74 transitions. [2024-12-06 01:41:04,074 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2024-12-06 01:41:04,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 01:41:04,074 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:41:04,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:41:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:41:04,331 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 01:41:06,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:41:06,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 53 states and 78 transitions. [2024-12-06 01:41:06,420 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 78 transitions. [2024-12-06 01:41:06,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 01:41:06,421 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:41:06,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:41:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:41:06,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 01:41:07,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:41:07,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 53 states and 77 transitions. [2024-12-06 01:41:07,730 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 77 transitions. [2024-12-06 01:41:07,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 01:41:07,731 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:41:07,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:41:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:41:08,836 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:41:15,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:41:15,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 58 states and 92 transitions. [2024-12-06 01:41:15,571 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 92 transitions. [2024-12-06 01:41:15,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 01:41:15,571 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:41:15,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:41:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:41:15,819 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 01:41:24,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:41:24,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 66 states and 112 transitions. [2024-12-06 01:41:24,252 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 112 transitions. [2024-12-06 01:41:24,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 01:41:24,252 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:41:24,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:41:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:41:25,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:41:35,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:41:35,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 73 states and 133 transitions. [2024-12-06 01:41:35,519 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 133 transitions. [2024-12-06 01:41:35,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-06 01:41:35,520 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:41:35,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:41:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:41:35,531 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:41:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:41:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:41:35,609 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:41:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:41:35,647 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 25 iterations. [2024-12-06 01:41:35,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:41:35 ImpRootNode [2024-12-06 01:41:35,677 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:41:35,677 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:41:35,677 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:41:35,677 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:41:35,678 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:40:48" (3/4) ... [2024-12-06 01:41:35,679 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 01:41:35,717 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 9. [2024-12-06 01:41:35,758 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 01:41:35,758 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 01:41:35,758 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:41:35,759 INFO L158 Benchmark]: Toolchain (without parser) took 48064.69ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 117.0MB in the beginning and 158.6MB in the end (delta: -41.6MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2024-12-06 01:41:35,759 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 82.6MB in the end (delta: 251.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:41:35,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.80ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 98.4MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:41:35,760 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.39ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 96.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:41:35,760 INFO L158 Benchmark]: Boogie Preprocessor took 20.34ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 95.8MB in the end (delta: 982.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:41:35,760 INFO L158 Benchmark]: RCFGBuilder took 345.74ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 76.8MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:41:35,761 INFO L158 Benchmark]: CodeCheck took 47281.39ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 76.8MB in the beginning and 163.6MB in the end (delta: -86.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:41:35,761 INFO L158 Benchmark]: Witness Printer took 81.45ms. Allocated memory is still 218.1MB. Free memory was 163.6MB in the beginning and 158.6MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:41:35,762 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, 32 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 47.2s, OverallIterations: 25, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1151 SdHoareTripleChecker+Valid, 9.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 863 mSDsluCounter, 763 SdHoareTripleChecker+Invalid, 8.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 452 mSDsCounter, 1526 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5452 IncrementalHoareTripleChecker+Invalid, 6978 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1526 mSolverCounterUnsat, 311 mSDtfsCounter, 5452 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2152 GetRequests, 1754 SyntacticMatches, 20 SemanticMatches, 378 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54326 ImplicationChecksByTransitivity, 43.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 1303 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 19 PerfectInterpolantSequences, 7/18 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L378] int length1 = __VERIFIER_nondet_int(); [L379] int length2 = __VERIFIER_nondet_int(); [L380] int n = __VERIFIER_nondet_int(); [L381] COND FALSE !(length1 < 1) [L384] COND FALSE !(length2 < 1) [L387] COND FALSE !(n < 1) VAL [length1=4, length2=2, n=2] [L390] COND FALSE !(length1 < n || length1 - n < length2) [L391] char* nondetString1 = (char*) __builtin_alloca(length1 * sizeof(char)); [L392] char* nondetString2 = (char*) __builtin_alloca(length2 * sizeof(char)); VAL [length1=4, length2=2, n=2, nondetString1={3:0}, nondetString2={2:0}] [L393] nondetString1[0] = '\0' VAL [length1=4, length2=2, n=2, nondetString1={3:0}, nondetString2={2:0}] [L394] nondetString2[0] = '\0' [L395] nondetString1 += length1 - n - 1 [L396] nondetString2 += length2 - 1 [L397] CALL cstrncat(nondetString1, nondetString2, n) [L366] char *s = s1; VAL [n=2, s1={3:1}, s2={2:1}, s={3:1}] [L367] EXPR \read(*s) VAL [n=2, s1={3:1}, s2={2:1}, s={3:1}] [L367] COND TRUE *s != '\0' [L368] s-- VAL [n=2, s1={3:1}, s2={2:1}, s={3:0}] [L367] EXPR \read(*s) VAL [n=2, s1={3:1}, s2={2:1}, s={3:0}] [L367] COND FALSE !(*s != '\0') [L369] n != 0 && (*s = *s2--) != '\0' [L369] EXPR s2-- VAL [n=2, s1={3:1}, s2={2:0}, s={3:0}] [L369] EXPR *s = *s2-- [L369] n != 0 && (*s = *s2--) != '\0' VAL [n=2, s1={3:1}, s2={2:0}, s={3:0}] [L369] COND TRUE n != 0 && (*s = *s2--) != '\0' [L370] n-- [L371] s-- VAL [n=1, s1={3:1}, s2={2:0}, s={3:-1}] [L369] n != 0 && (*s = *s2--) != '\0' [L369] EXPR s2-- VAL [n=1, s1={3:1}, s2={2:-1}, s={3:-1}] [L369] *s = *s2-- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 82.6MB in the end (delta: 251.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.80ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 98.4MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.39ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 96.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.34ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 95.8MB in the end (delta: 982.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 345.74ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 76.8MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 47281.39ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 76.8MB in the beginning and 163.6MB in the end (delta: -86.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 81.45ms. Allocated memory is still 218.1MB. Free memory was 163.6MB in the beginning and 158.6MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 01:41:35,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0155d148-7216-4ead-a473-50be79d61ae4/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-deref)