./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/heap-manipulation/tree-4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/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_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/tree-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/bin/ukojak-verify-CZk0znPC7b/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/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-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 93cf6e13715dcd5309cb599b4358d41a64464f02c52b3716bc554a9d0e833f5e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 22:20:39,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 22:20:39,146 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/bin/ukojak-verify-CZk0znPC7b/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-12-05 22:20:39,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 22:20:39,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 22:20:39,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 22:20:39,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 22:20:39,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 22:20:39,170 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 22:20:39,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 22:20:39,170 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 22:20:39,171 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 22:20:39,171 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 22:20:39,171 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 22:20:39,171 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 22:20:39,171 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-05 22:20:39,171 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-05 22:20:39,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 22:20:39,171 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 22:20:39,171 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 22:20:39,171 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 22:20:39,172 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 22:20:39,172 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 22:20:39,172 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 22:20:39,172 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 22:20:39,172 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 22:20:39,172 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 22:20:39,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 22:20:39,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:20:39,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 22:20:39,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 22:20:39,172 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 22:20:39,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 22:20:39,173 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_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/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-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93cf6e13715dcd5309cb599b4358d41a64464f02c52b3716bc554a9d0e833f5e [2024-12-05 22:20:39,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 22:20:39,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 22:20:39,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 22:20:39,376 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 22:20:39,377 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 22:20:39,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/heap-manipulation/tree-4.i [2024-12-05 22:20:41,990 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/bin/ukojak-verify-CZk0znPC7b/data/a5dca8c5d/d73e0e3a07594de48741da4b4db97d8f/FLAG8eea949b4 [2024-12-05 22:20:42,243 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 22:20:42,243 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/sv-benchmarks/c/heap-manipulation/tree-4.i [2024-12-05 22:20:42,253 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/bin/ukojak-verify-CZk0znPC7b/data/a5dca8c5d/d73e0e3a07594de48741da4b4db97d8f/FLAG8eea949b4 [2024-12-05 22:20:42,266 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/bin/ukojak-verify-CZk0znPC7b/data/a5dca8c5d/d73e0e3a07594de48741da4b4db97d8f [2024-12-05 22:20:42,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 22:20:42,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 22:20:42,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 22:20:42,270 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 22:20:42,273 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 22:20:42,274 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:20:42" (1/1) ... [2024-12-05 22:20:42,274 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f24274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:20:42, skipping insertion in model container [2024-12-05 22:20:42,275 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:20:42" (1/1) ... [2024-12-05 22:20:42,295 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 22:20:42,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:20:42,547 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 22:20:42,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:20:42,607 INFO L204 MainTranslator]: Completed translation [2024-12-05 22:20:42,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:20:42 WrapperNode [2024-12-05 22:20:42,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 22:20:42,608 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 22:20:42,608 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 22:20:42,608 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 22:20:42,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:20:42" (1/1) ... [2024-12-05 22:20:42,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:20:42" (1/1) ... [2024-12-05 22:20:42,641 INFO L138 Inliner]: procedures = 122, calls = 45, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 153 [2024-12-05 22:20:42,641 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 22:20:42,642 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 22:20:42,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 22:20:42,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 22:20:42,649 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:20:42" (1/1) ... [2024-12-05 22:20:42,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:20:42" (1/1) ... [2024-12-05 22:20:42,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:20:42" (1/1) ... [2024-12-05 22:20:42,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:20:42" (1/1) ... [2024-12-05 22:20:42,660 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:20:42" (1/1) ... [2024-12-05 22:20:42,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:20:42" (1/1) ... [2024-12-05 22:20:42,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:20:42" (1/1) ... [2024-12-05 22:20:42,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:20:42" (1/1) ... [2024-12-05 22:20:42,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:20:42" (1/1) ... [2024-12-05 22:20:42,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 22:20:42,670 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 22:20:42,670 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 22:20:42,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 22:20:42,671 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:20:42" (1/1) ... [2024-12-05 22:20:42,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:20:42,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 22:20:42,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 22:20:42,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 22:20:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 22:20:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 22:20:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-05 22:20:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 22:20:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-05 22:20:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-05 22:20:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 22:20:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 22:20:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 22:20:42,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 22:20:42,811 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 22:20:42,812 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 22:20:43,023 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-12-05 22:20:43,023 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 22:20:43,112 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 22:20:43,112 INFO L312 CfgBuilder]: Removed 9 assume(true) statements. [2024-12-05 22:20:43,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:20:43 BoogieIcfgContainer [2024-12-05 22:20:43,112 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 22:20:43,113 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 22:20:43,113 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 22:20:43,122 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 22:20:43,122 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:20:43" (1/1) ... [2024-12-05 22:20:43,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 22:20:43,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:43,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 35 states and 55 transitions. [2024-12-05 22:20:43,175 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 55 transitions. [2024-12-05 22:20:43,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 22:20:43,177 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:43,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:43,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:20:43,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:43,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 35 states and 54 transitions. [2024-12-05 22:20:43,317 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 54 transitions. [2024-12-05 22:20:43,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 22:20:43,318 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:43,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:43,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:20:43,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:43,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 41 states and 65 transitions. [2024-12-05 22:20:43,499 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 65 transitions. [2024-12-05 22:20:43,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 22:20:43,499 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:43,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:43,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:20:43,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:43,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 45 states and 70 transitions. [2024-12-05 22:20:43,786 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 70 transitions. [2024-12-05 22:20:43,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 22:20:43,788 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:43,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:43,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:20:44,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:44,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 46 states and 76 transitions. [2024-12-05 22:20:44,117 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 76 transitions. [2024-12-05 22:20:44,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 22:20:44,117 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:44,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:44,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:20:44,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 47 states and 74 transitions. [2024-12-05 22:20:44,491 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 74 transitions. [2024-12-05 22:20:44,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-05 22:20:44,492 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:44,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:44,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:20:45,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:45,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 50 states and 90 transitions. [2024-12-05 22:20:45,522 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 90 transitions. [2024-12-05 22:20:45,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 22:20:45,522 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:45,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:45,642 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 22:20:45,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:45,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 51 states and 93 transitions. [2024-12-05 22:20:45,973 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 93 transitions. [2024-12-05 22:20:45,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 22:20:45,973 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:45,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:46,095 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 22:20:46,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:46,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 52 states and 95 transitions. [2024-12-05 22:20:46,509 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 95 transitions. [2024-12-05 22:20:46,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 22:20:46,510 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:46,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:46,613 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 22:20:46,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:46,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 48 states and 79 transitions. [2024-12-05 22:20:46,771 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 79 transitions. [2024-12-05 22:20:46,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 22:20:46,772 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:46,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:46,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:20:46,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:46,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 49 states and 81 transitions. [2024-12-05 22:20:46,941 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 81 transitions. [2024-12-05 22:20:46,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 22:20:46,942 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:46,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:47,027 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:20:47,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:47,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 45 states and 76 transitions. [2024-12-05 22:20:47,318 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 76 transitions. [2024-12-05 22:20:47,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-05 22:20:47,319 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:47,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:47,351 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-05 22:20:47,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:47,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 45 states and 75 transitions. [2024-12-05 22:20:47,362 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 75 transitions. [2024-12-05 22:20:47,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-05 22:20:47,363 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:47,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:47,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:20:47,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:47,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 46 states and 77 transitions. [2024-12-05 22:20:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 77 transitions. [2024-12-05 22:20:47,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-05 22:20:47,442 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:47,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:48,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:20:50,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:50,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 54 states and 106 transitions. [2024-12-05 22:20:50,317 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 106 transitions. [2024-12-05 22:20:50,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-05 22:20:50,318 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:50,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:50,945 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:20:52,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:52,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 59 states and 123 transitions. [2024-12-05 22:20:52,702 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 123 transitions. [2024-12-05 22:20:52,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-05 22:20:52,702 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:52,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:20:54,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:54,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 61 states and 129 transitions. [2024-12-05 22:20:54,791 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 129 transitions. [2024-12-05 22:20:54,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-05 22:20:54,792 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:54,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:55,515 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:20:56,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:56,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 63 states and 135 transitions. [2024-12-05 22:20:56,495 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 135 transitions. [2024-12-05 22:20:56,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-05 22:20:56,496 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:56,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:57,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:20:59,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:20:59,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 68 states and 152 transitions. [2024-12-05 22:20:59,187 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 152 transitions. [2024-12-05 22:20:59,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-05 22:20:59,187 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:20:59,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:20:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:20:59,955 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:21:01,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:21:01,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 69 states and 162 transitions. [2024-12-05 22:21:01,282 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 162 transitions. [2024-12-05 22:21:01,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 22:21:01,282 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:21:01,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:21:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:21:02,303 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:21:04,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:21:04,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 71 states and 187 transitions. [2024-12-05 22:21:04,801 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 187 transitions. [2024-12-05 22:21:04,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 22:21:04,801 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:21:04,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:21:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:21:05,569 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:21:06,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:21:06,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 72 states and 194 transitions. [2024-12-05 22:21:06,571 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 194 transitions. [2024-12-05 22:21:06,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 22:21:06,572 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:21:06,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:21:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:21:08,885 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:21:10,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:21:10,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 73 states and 204 transitions. [2024-12-05 22:21:10,387 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 204 transitions. [2024-12-05 22:21:10,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 22:21:10,387 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:21:10,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:21:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:21:12,012 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:21:14,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:21:14,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 75 states and 239 transitions. [2024-12-05 22:21:14,704 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 239 transitions. [2024-12-05 22:21:14,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 22:21:14,705 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:21:14,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:21:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:21:15,506 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:21:17,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:21:17,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 76 states and 267 transitions. [2024-12-05 22:21:17,251 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 267 transitions. [2024-12-05 22:21:17,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 22:21:17,251 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:21:17,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:21:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:21:18,762 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:21:20,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:21:20,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 77 states and 296 transitions. [2024-12-05 22:21:20,649 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 296 transitions. [2024-12-05 22:21:20,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 22:21:20,649 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:21:20,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:21:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:21:22,865 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:21:24,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:21:24,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 81 states and 315 transitions. [2024-12-05 22:21:24,666 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 315 transitions. [2024-12-05 22:21:24,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 22:21:24,667 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:21:24,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:21:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:21:26,020 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:21:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:21:30,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 84 states and 372 transitions. [2024-12-05 22:21:30,403 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 372 transitions. [2024-12-05 22:21:30,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 22:21:30,404 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:21:30,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:21:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:21:31,839 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:21:33,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:21:33,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 85 states and 384 transitions. [2024-12-05 22:21:33,298 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 384 transitions. [2024-12-05 22:21:33,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 22:21:33,299 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:21:33,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:21:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:21:35,122 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:21:39,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:21:39,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 88 states and 439 transitions. [2024-12-05 22:21:39,464 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 439 transitions. [2024-12-05 22:21:39,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 22:21:39,465 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:21:39,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:21:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:21:40,164 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:21:41,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:21:41,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 90 states and 445 transitions. [2024-12-05 22:21:41,420 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 445 transitions. [2024-12-05 22:21:41,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 22:21:41,420 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:21:41,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:21:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:21:41,454 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:21:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:21:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:21:42,198 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:21:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:21:42,641 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 31 iterations. [2024-12-05 22:21:42,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 10:21:42 ImpRootNode [2024-12-05 22:21:42,672 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 22:21:42,672 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 22:21:42,672 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 22:21:42,672 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 22:21:42,674 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:20:43" (3/4) ... [2024-12-05 22:21:42,674 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 22:21:42,710 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 23. [2024-12-05 22:21:42,781 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 22:21:42,781 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 22:21:42,781 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 22:21:42,782 INFO L158 Benchmark]: Toolchain (without parser) took 60512.27ms. Allocated memory was 117.4MB in the beginning and 973.1MB in the end (delta: 855.6MB). Free memory was 91.2MB in the beginning and 452.2MB in the end (delta: -360.9MB). Peak memory consumption was 496.2MB. Max. memory is 16.1GB. [2024-12-05 22:21:42,783 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 73.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:21:42,783 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.43ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 73.7MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:21:42,783 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.97ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 71.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:21:42,783 INFO L158 Benchmark]: Boogie Preprocessor took 27.71ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 70.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:21:42,784 INFO L158 Benchmark]: RCFGBuilder took 442.40ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 43.1MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-05 22:21:42,785 INFO L158 Benchmark]: CodeCheck took 59558.73ms. Allocated memory was 117.4MB in the beginning and 973.1MB in the end (delta: 855.6MB). Free memory was 43.1MB in the beginning and 457.4MB in the end (delta: -414.3MB). Peak memory consumption was 437.5MB. Max. memory is 16.1GB. [2024-12-05 22:21:42,785 INFO L158 Benchmark]: Witness Printer took 109.04ms. Allocated memory is still 973.1MB. Free memory was 457.4MB in the beginning and 452.2MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 22:21:42,787 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, 35 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 59.5s, OverallIterations: 31, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3569 SdHoareTripleChecker+Valid, 166.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1656 mSDsluCounter, 2781 SdHoareTripleChecker+Invalid, 157.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2008 mSDsCounter, 3343 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13395 IncrementalHoareTripleChecker+Invalid, 16738 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3343 mSolverCounterUnsat, 773 mSDtfsCounter, 13395 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5769 GetRequests, 5352 SyntacticMatches, 127 SemanticMatches, 290 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37324 ImplicationChecksByTransitivity, 21.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 20.5s InterpolantComputationTime, 483 NumberOfCodeBlocks, 483 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 433 ConstructedInterpolants, 0 QuantifiedInterpolants, 4691 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 6 PerfectInterpolantSequences, 102/158 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: 12]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L632] CALL, EXPR create_tree() [L585] struct node *nodelast = ((void *)0); [L586] struct node *node = ((void *)0); VAL [node={0:0}, nodelast={0:0}] [L587] COND TRUE __VERIFIER_nondet_int() [L588] node = malloc(sizeof *node) [L589] COND FALSE !(!node) [L591] node->left = ((void *)0) [L592] node->right = nodelast [L593] COND FALSE !(\read(*nodelast)) [L595] int value = __VERIFIER_nondet_int(); [L596] node->value = value [L597] nodelast = node [L587] COND FALSE !(__VERIFIER_nondet_int()) [L599] COND TRUE node != ((void *)0) [L600] node->parent = ((void *)0) VAL [node={-2:0}, nodelast={-2:0}] [L601] COND TRUE node != ((void *)0) [L602] node->left = malloc(sizeof *node) [L603] COND FALSE !(!node) [L605] EXPR node->left [L605] node->left->left = ((void *)0) [L606] EXPR node->left [L606] node->left->right = ((void *)0) [L607] EXPR node->left [L607] node->left->value = 42 [L608] EXPR node->left [L608] node->left->parent = node [L609] EXPR node->right [L609] node = node->right [L601] COND FALSE !(node != ((void *)0)) [L611] return nodelast; [L632] RET, EXPR create_tree() [L632] struct node *data = create_tree(); [L633] COND FALSE !(!data) [L635] CALL inspect(data) [L575] COND FALSE !(!(node)) VAL [node={-2:0}] [L575] COND FALSE !(0) VAL [node={-2:0}] [L576] COND TRUE node != ((void *)0) [L577] node->left VAL [node={-2:0}] [L577] COND TRUE node->left [L578] EXPR node->left [L578] EXPR node->left->value VAL [node={-2:0}] [L578] COND FALSE !(!(node->left->value == 42)) [L578] COND FALSE !(0) VAL [node={-2:0}] [L579] EXPR node->value VAL [node={-2:0}] [L579] COND TRUE !(node->value) [L579] CALL fail() [L565] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "tree-4.c", 3, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 73.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.43ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 73.7MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.97ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 71.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.71ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 70.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 442.40ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 43.1MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 59558.73ms. Allocated memory was 117.4MB in the beginning and 973.1MB in the end (delta: 855.6MB). Free memory was 43.1MB in the beginning and 457.4MB in the end (delta: -414.3MB). Peak memory consumption was 437.5MB. Max. memory is 16.1GB. * Witness Printer took 109.04ms. Allocated memory is still 973.1MB. Free memory was 457.4MB in the beginning and 452.2MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-05 22:21:42,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec42d01-ff8f-4df8-a1b5-3c20aefa1faa/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-memcleanup)