./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/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_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c5050f69dd0fe75249366946a38ba884fb5943ccf611397d2d01e0ccda347b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:26:41,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:26:41,488 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-12-06 03:26:41,493 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:26:41,493 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:26:41,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:26:41,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:26:41,515 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:26:41,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:26:41,515 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:26:41,515 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:26:41,515 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:26:41,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:26:41,516 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 03:26:41,516 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 03:26:41,516 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-06 03:26:41,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:26:41,516 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 03:26:41,516 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:26:41,516 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:26:41,516 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:26:41,516 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:26:41,516 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:26:41,516 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:26:41,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:26:41,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:26:41,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:26:41,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:26:41,517 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:26:41,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:26:41,517 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_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c5050f69dd0fe75249366946a38ba884fb5943ccf611397d2d01e0ccda347b5 [2024-12-06 03:26:41,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:26:41,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:26:41,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:26:41,754 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:26:41,754 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:26:41,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c [2024-12-06 03:26:44,411 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b/data/f91185835/3554a04835c445f68e2ec9ddf895625c/FLAGf7e5d38e7 [2024-12-06 03:26:44,594 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:26:44,595 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c [2024-12-06 03:26:44,605 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b/data/f91185835/3554a04835c445f68e2ec9ddf895625c/FLAGf7e5d38e7 [2024-12-06 03:26:44,975 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b/data/f91185835/3554a04835c445f68e2ec9ddf895625c [2024-12-06 03:26:44,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:26:44,977 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:26:44,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:26:44,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:26:44,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:26:44,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:26:44" (1/1) ... [2024-12-06 03:26:44,983 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74aba5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:26:44, skipping insertion in model container [2024-12-06 03:26:44,983 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:26:44" (1/1) ... [2024-12-06 03:26:44,991 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:26:45,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:26:45,120 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:26:45,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:26:45,143 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:26:45,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:26:45 WrapperNode [2024-12-06 03:26:45,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:26:45,145 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:26:45,145 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:26:45,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:26:45,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:26:45" (1/1) ... [2024-12-06 03:26:45,157 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:26:45" (1/1) ... [2024-12-06 03:26:45,170 INFO L138 Inliner]: procedures = 9, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2024-12-06 03:26:45,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:26:45,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:26:45,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:26:45,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:26:45,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:26:45" (1/1) ... [2024-12-06 03:26:45,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:26:45" (1/1) ... [2024-12-06 03:26:45,178 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:26:45" (1/1) ... [2024-12-06 03:26:45,178 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:26:45" (1/1) ... [2024-12-06 03:26:45,181 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:26:45" (1/1) ... [2024-12-06 03:26:45,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:26:45" (1/1) ... [2024-12-06 03:26:45,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:26:45" (1/1) ... [2024-12-06 03:26:45,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:26:45" (1/1) ... [2024-12-06 03:26:45,185 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:26:45" (1/1) ... [2024-12-06 03:26:45,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:26:45,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:26:45,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:26:45,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:26:45,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:26:45" (1/1) ... [2024-12-06 03:26:45,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:26:45,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:26:45,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:26:45,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:26:45,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 03:26:45,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 03:26:45,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:26:45,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:26:45,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 03:26:45,294 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:26:45,295 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:26:45,386 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-12-06 03:26:45,386 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:26:45,403 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:26:45,403 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 03:26:45,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:26:45 BoogieIcfgContainer [2024-12-06 03:26:45,404 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:26:45,405 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:26:45,405 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:26:45,412 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:26:45,413 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:26:45" (1/1) ... [2024-12-06 03:26:45,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:26:45,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:45,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2024-12-06 03:26:45,463 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-12-06 03:26:45,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 03:26:45,465 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:45,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:45,592 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 03:26:45,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:45,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2024-12-06 03:26:45,620 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-12-06 03:26:45,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 03:26:45,620 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:45,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:45,668 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 03:26:45,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:45,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-12-06 03:26:45,760 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-12-06 03:26:45,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 03:26:45,760 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:45,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:45,850 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 03:26:46,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:46,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2024-12-06 03:26:46,027 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2024-12-06 03:26:46,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 03:26:46,029 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:46,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:46,061 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 03:26:46,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:46,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2024-12-06 03:26:46,074 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2024-12-06 03:26:46,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:26:46,075 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:46,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:46,100 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 03:26:46,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:46,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2024-12-06 03:26:46,128 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2024-12-06 03:26:46,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:26:46,129 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:46,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:46,182 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 03:26:46,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:46,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2024-12-06 03:26:46,269 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2024-12-06 03:26:46,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:26:46,269 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:46,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:26:46,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:46,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 29 states and 42 transitions. [2024-12-06 03:26:46,723 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 42 transitions. [2024-12-06 03:26:46,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:26:46,724 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:46,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:46,742 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 03:26:46,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:46,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 30 states and 42 transitions. [2024-12-06 03:26:46,841 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2024-12-06 03:26:46,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 03:26:46,841 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:46,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:46,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-06 03:26:46,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:46,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 32 states and 46 transitions. [2024-12-06 03:26:46,985 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2024-12-06 03:26:46,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 03:26:46,986 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:46,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:47,035 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-06 03:26:47,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:47,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 41 states and 59 transitions. [2024-12-06 03:26:47,615 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2024-12-06 03:26:47,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 03:26:47,616 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:47,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:47,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 03:26:47,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:47,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 40 states and 57 transitions. [2024-12-06 03:26:47,925 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 57 transitions. [2024-12-06 03:26:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 03:26:47,925 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:47,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:48,089 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:26:48,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:48,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 42 states and 61 transitions. [2024-12-06 03:26:48,454 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 61 transitions. [2024-12-06 03:26:48,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 03:26:48,454 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:48,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:48,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:26:48,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:48,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 46 states and 71 transitions. [2024-12-06 03:26:48,860 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 71 transitions. [2024-12-06 03:26:48,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 03:26:48,861 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:48,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:48,943 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:26:49,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:49,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 47 states and 73 transitions. [2024-12-06 03:26:49,091 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 73 transitions. [2024-12-06 03:26:49,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 03:26:49,092 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:49,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:49,105 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 03:26:49,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:49,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 48 states and 73 transitions. [2024-12-06 03:26:49,241 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 73 transitions. [2024-12-06 03:26:49,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 03:26:49,242 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:49,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:49,257 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-06 03:26:49,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:49,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 50 states and 74 transitions. [2024-12-06 03:26:49,427 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 74 transitions. [2024-12-06 03:26:49,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 03:26:49,427 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:49,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:49,505 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:26:49,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:49,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 54 states and 84 transitions. [2024-12-06 03:26:49,882 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 84 transitions. [2024-12-06 03:26:49,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 03:26:49,882 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:49,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:49,899 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-06 03:26:50,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:50,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 55 states and 84 transitions. [2024-12-06 03:26:50,027 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions. [2024-12-06 03:26:50,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 03:26:50,028 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:50,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:50,205 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:26:50,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:50,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 56 states and 84 transitions. [2024-12-06 03:26:50,468 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 84 transitions. [2024-12-06 03:26:50,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-06 03:26:50,468 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:50,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:50,486 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-06 03:26:50,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:50,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 58 states and 85 transitions. [2024-12-06 03:26:50,659 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions. [2024-12-06 03:26:50,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 03:26:50,659 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:50,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:50,740 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:26:51,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:51,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 62 states and 95 transitions. [2024-12-06 03:26:51,139 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 95 transitions. [2024-12-06 03:26:51,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 03:26:51,140 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:51,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-06 03:26:51,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:51,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 63 states and 95 transitions. [2024-12-06 03:26:51,284 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 95 transitions. [2024-12-06 03:26:51,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 03:26:51,284 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:51,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:51,497 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:26:51,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:51,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 64 states and 95 transitions. [2024-12-06 03:26:51,802 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 95 transitions. [2024-12-06 03:26:51,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 03:26:51,802 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:51,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:51,827 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-06 03:26:52,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:52,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 66 states and 96 transitions. [2024-12-06 03:26:52,041 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 96 transitions. [2024-12-06 03:26:52,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-06 03:26:52,041 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:52,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:52,145 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:26:52,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:52,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 70 states and 106 transitions. [2024-12-06 03:26:52,576 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 106 transitions. [2024-12-06 03:26:52,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-06 03:26:52,576 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:52,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:52,594 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-06 03:26:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:52,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 71 states and 106 transitions. [2024-12-06 03:26:52,759 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 106 transitions. [2024-12-06 03:26:52,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-06 03:26:52,760 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:52,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:53,196 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:26:53,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:53,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 73 states and 111 transitions. [2024-12-06 03:26:53,979 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 111 transitions. [2024-12-06 03:26:53,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-06 03:26:53,980 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:53,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:54,004 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-06 03:26:54,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:54,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 75 states and 114 transitions. [2024-12-06 03:26:54,261 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 114 transitions. [2024-12-06 03:26:54,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-06 03:26:54,261 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:54,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:54,284 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-06 03:26:54,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:54,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 76 states and 115 transitions. [2024-12-06 03:26:54,556 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 115 transitions. [2024-12-06 03:26:54,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 03:26:54,557 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:54,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:54,654 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:26:55,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:55,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 79 states and 124 transitions. [2024-12-06 03:26:55,248 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 124 transitions. [2024-12-06 03:26:55,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 03:26:55,249 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:55,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:55,285 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:26:56,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:56,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 82 states and 129 transitions. [2024-12-06 03:26:56,075 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 129 transitions. [2024-12-06 03:26:56,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 03:26:56,076 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:56,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:56,091 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-06 03:26:56,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:56,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 83 states and 129 transitions. [2024-12-06 03:26:56,288 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 129 transitions. [2024-12-06 03:26:56,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 03:26:56,288 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:56,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:26:56,620 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 50 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:26:56,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:26:56,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 84 states and 129 transitions. [2024-12-06 03:26:56,884 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 129 transitions. [2024-12-06 03:26:56,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 03:26:56,884 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:26:56,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:26:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:26:56,897 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:26:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:26:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:26:56,945 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:26:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:26:56,964 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 34 iterations. [2024-12-06 03:26:56,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:26:56 ImpRootNode [2024-12-06 03:26:56,991 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:26:56,992 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:26:56,992 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:26:56,992 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:26:56,993 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:26:45" (3/4) ... [2024-12-06 03:26:56,993 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 03:26:57,029 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 14. [2024-12-06 03:26:57,071 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 03:26:57,071 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 03:26:57,071 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:26:57,072 INFO L158 Benchmark]: Toolchain (without parser) took 12094.41ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 117.2MB in the beginning and 137.1MB in the end (delta: -19.9MB). Peak memory consumption was 153.3MB. Max. memory is 16.1GB. [2024-12-06 03:26:57,072 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:26:57,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.23ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 106.9MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:26:57,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.21ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 105.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:26:57,073 INFO L158 Benchmark]: Boogie Preprocessor took 15.59ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 105.1MB in the end (delta: 772.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:26:57,073 INFO L158 Benchmark]: RCFGBuilder took 217.25ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 94.3MB in the end (delta: 10.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:26:57,074 INFO L158 Benchmark]: CodeCheck took 11586.46ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 94.3MB in the beginning and 143.6MB in the end (delta: -49.3MB). Peak memory consumption was 119.8MB. Max. memory is 16.1GB. [2024-12-06 03:26:57,074 INFO L158 Benchmark]: Witness Printer took 79.47ms. Allocated memory is still 318.8MB. Free memory was 143.6MB in the beginning and 137.1MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:26:57,076 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, 16 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 34, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2780 SdHoareTripleChecker+Valid, 10.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2561 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1434 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8328 IncrementalHoareTripleChecker+Invalid, 9762 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1434 mSolverCounterUnsat, 93 mSDtfsCounter, 8328 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3856 GetRequests, 3356 SyntacticMatches, 258 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31667 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 531 NumberOfCodeBlocks, 531 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 468 ConstructedInterpolants, 0 QuantifiedInterpolants, 2612 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 33 InterpolantComputations, 19 PerfectInterpolantSequences, 450/787 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: [L6] int* p = malloc(10 * sizeof(int)); [L8] int i = 0; VAL [i=0, p={-1:0}] [L8] COND TRUE i < 10 VAL [i=0, p={-1:0}] [L9] p[i] = 1 VAL [i=0, p={-1:0}] [L10] COND FALSE !(i == 5) VAL [i=0, p={-1:0}] [L8] i++ VAL [i=1, p={-1:0}] [L8] COND TRUE i < 10 VAL [i=1, p={-1:0}] [L9] p[i] = 1 VAL [i=1, p={-1:0}] [L10] COND FALSE !(i == 5) VAL [i=1, p={-1:0}] [L8] i++ VAL [i=2, p={-1:0}] [L8] COND TRUE i < 10 VAL [i=2, p={-1:0}] [L9] p[i] = 1 VAL [i=2, p={-1:0}] [L10] COND FALSE !(i == 5) VAL [i=2, p={-1:0}] [L8] i++ VAL [i=3, p={-1:0}] [L8] COND TRUE i < 10 VAL [i=3, p={-1:0}] [L9] p[i] = 1 VAL [i=3, p={-1:0}] [L10] COND FALSE !(i == 5) VAL [i=3, p={-1:0}] [L8] i++ VAL [i=4, p={-1:0}] [L8] COND TRUE i < 10 VAL [i=4, p={-1:0}] [L9] p[i] = 1 VAL [i=4, p={-1:0}] [L10] COND FALSE !(i == 5) VAL [i=4, p={-1:0}] [L8] i++ VAL [i=5, p={-1:0}] [L8] COND TRUE i < 10 VAL [i=5, p={-1:0}] [L9] p[i] = 1 VAL [i=5, p={-1:0}] [L10] COND TRUE i == 5 VAL [i=5, p={-1:0}] [L11] free(p) VAL [i=5, p={-1:0}] [L11] free(p) VAL [i=5, p={-1:0}] [L11] free(p) [L8] i++ VAL [i=6, p={-1:0}] [L8] COND TRUE i < 10 VAL [i=6, p={-1:0}] [L9] p[i] = 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.23ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 106.9MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.21ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 105.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.59ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 105.1MB in the end (delta: 772.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 217.25ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 94.3MB in the end (delta: 10.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 11586.46ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 94.3MB in the beginning and 143.6MB in the end (delta: -49.3MB). Peak memory consumption was 119.8MB. Max. memory is 16.1GB. * Witness Printer took 79.47ms. Allocated memory is still 318.8MB. Free memory was 143.6MB in the beginning and 137.1MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 03:26:57,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c0775e-a533-4ac6-8fe6-e2f93f4653a2/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)