./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/960521-1_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/960521-1_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk --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 1bdc21b2f61b0d69220994ec3f8dc9d2db928c146bd54c19e0632aa07d01871a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:26:21,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:26:21,506 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-09 00:26:21,513 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:26:21,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:26:21,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:26:21,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:26:21,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:26:21,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:26:21,549 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:26:21,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:26:21,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:26:21,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:26:21,551 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 00:26:21,551 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 00:26:21,552 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 00:26:21,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:26:21,552 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:26:21,553 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:26:21,553 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:26:21,553 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:26:21,554 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:26:21,554 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:26:21,555 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:26:21,555 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:26:21,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:26:21,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:26:21,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:26:21,557 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:26:21,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:26:21,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bdc21b2f61b0d69220994ec3f8dc9d2db928c146bd54c19e0632aa07d01871a [2024-11-09 00:26:21,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:26:21,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:26:21,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:26:21,883 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:26:21,891 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:26:21,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/list-ext-properties/960521-1_1-1.i Unable to find full path for "g++" [2024-11-09 00:26:23,967 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:26:24,207 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:26:24,208 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/sv-benchmarks/c/list-ext-properties/960521-1_1-1.i [2024-11-09 00:26:24,222 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/data/b296809e2/23e97d46ca7748c7b40724e701f893b3/FLAG11b7d5863 [2024-11-09 00:26:24,274 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/data/b296809e2/23e97d46ca7748c7b40724e701f893b3 [2024-11-09 00:26:24,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:26:24,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:26:24,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:26:24,282 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:26:24,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:26:24,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:26:24" (1/1) ... [2024-11-09 00:26:24,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56aca794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:24, skipping insertion in model container [2024-11-09 00:26:24,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:26:24" (1/1) ... [2024-11-09 00:26:24,368 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:26:24,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:26:24,708 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:26:24,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:26:24,791 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:26:24,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:24 WrapperNode [2024-11-09 00:26:24,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:26:24,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:26:24,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:26:24,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:26:24,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:24" (1/1) ... [2024-11-09 00:26:24,817 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:24" (1/1) ... [2024-11-09 00:26:24,844 INFO L138 Inliner]: procedures = 122, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2024-11-09 00:26:24,845 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:26:24,848 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:26:24,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:26:24,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:26:24,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:24" (1/1) ... [2024-11-09 00:26:24,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:24" (1/1) ... [2024-11-09 00:26:24,861 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:24" (1/1) ... [2024-11-09 00:26:24,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:24" (1/1) ... [2024-11-09 00:26:24,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:24" (1/1) ... [2024-11-09 00:26:24,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:24" (1/1) ... [2024-11-09 00:26:24,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:24" (1/1) ... [2024-11-09 00:26:24,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:24" (1/1) ... [2024-11-09 00:26:24,891 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:26:24,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:26:24,893 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:26:24,893 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:26:24,894 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:24" (1/1) ... [2024-11-09 00:26:24,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:26:24,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:26:24,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:26:24,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:26:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:26:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 00:26:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 00:26:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:26:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:26:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:26:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:26:24,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:26:25,090 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:26:25,094 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:26:25,428 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-09 00:26:25,429 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:26:25,483 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:26:25,484 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:26:25,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:26:25 BoogieIcfgContainer [2024-11-09 00:26:25,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:26:25,488 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:26:25,488 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:26:25,501 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:26:25,501 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:26:25" (1/1) ... [2024-11-09 00:26:25,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:26:25,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:25,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 51 states and 57 transitions. [2024-11-09 00:26:25,593 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2024-11-09 00:26:25,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 00:26:25,596 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:25,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:25,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:25,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:25,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 51 states and 56 transitions. [2024-11-09 00:26:25,809 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2024-11-09 00:26:25,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 00:26:25,810 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:25,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:25,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:25,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:25,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 50 states and 55 transitions. [2024-11-09 00:26:25,992 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2024-11-09 00:26:25,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 00:26:25,993 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:25,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:26,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:26,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:26,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 54 states and 62 transitions. [2024-11-09 00:26:26,446 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2024-11-09 00:26:26,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 00:26:26,446 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:26,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:26,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:26,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:26,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 52 states and 58 transitions. [2024-11-09 00:26:26,865 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2024-11-09 00:26:26,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:26:26,866 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:26,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:27,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:27,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:27,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 51 states and 57 transitions. [2024-11-09 00:26:27,362 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2024-11-09 00:26:27,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:26:27,363 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:27,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:27,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:28,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:28,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 54 states and 63 transitions. [2024-11-09 00:26:28,830 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2024-11-09 00:26:28,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 00:26:28,833 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:28,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:28,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:29,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:29,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 56 states and 65 transitions. [2024-11-09 00:26:29,608 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2024-11-09 00:26:29,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 00:26:29,608 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:29,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:29,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:29,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 57 states and 66 transitions. [2024-11-09 00:26:29,680 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 66 transitions. [2024-11-09 00:26:29,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 00:26:29,680 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:29,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:29,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:30,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:30,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 59 states and 70 transitions. [2024-11-09 00:26:30,373 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2024-11-09 00:26:30,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 00:26:30,375 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:30,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:30,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:26:31,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:31,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 63 states and 80 transitions. [2024-11-09 00:26:31,462 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2024-11-09 00:26:31,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 00:26:31,465 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:31,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:31,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:32,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:32,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 63 states and 79 transitions. [2024-11-09 00:26:32,684 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2024-11-09 00:26:32,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 00:26:32,684 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:32,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 00:26:33,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:33,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 65 states and 82 transitions. [2024-11-09 00:26:33,944 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2024-11-09 00:26:33,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 00:26:33,944 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:33,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:33,969 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:26:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:34,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:26:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:34,113 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2024-11-09 00:26:34,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:26:34 ImpRootNode [2024-11-09 00:26:34,157 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:26:34,158 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:26:34,158 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:26:34,158 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:26:34,159 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:26:25" (3/4) ... [2024-11-09 00:26:34,160 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 00:26:34,214 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:26:34,215 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:26:34,216 INFO L158 Benchmark]: Toolchain (without parser) took 9935.30ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 134.0MB in the beginning and 83.8MB in the end (delta: 50.2MB). Peak memory consumption was 82.3MB. Max. memory is 16.1GB. [2024-11-09 00:26:34,216 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 119.5MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:26:34,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 510.36ms. Allocated memory is still 161.5MB. Free memory was 133.8MB in the beginning and 116.0MB in the end (delta: 17.8MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-11-09 00:26:34,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.39ms. Allocated memory is still 161.5MB. Free memory was 116.0MB in the beginning and 113.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:26:34,218 INFO L158 Benchmark]: Boogie Preprocessor took 44.44ms. Allocated memory is still 161.5MB. Free memory was 113.9MB in the beginning and 112.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:26:34,219 INFO L158 Benchmark]: RCFGBuilder took 593.40ms. Allocated memory is still 161.5MB. Free memory was 112.6MB in the beginning and 121.2MB in the end (delta: -8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 00:26:34,220 INFO L158 Benchmark]: CodeCheck took 8669.74ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 121.2MB in the beginning and 85.9MB in the end (delta: 35.3MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. [2024-11-09 00:26:34,220 INFO L158 Benchmark]: Witness Printer took 57.10ms. Allocated memory is still 195.0MB. Free memory was 85.9MB in the beginning and 83.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:26:34,224 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, 51 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 487 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 221 mSDsluCounter, 352 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 277 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 992 IncrementalHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 277 mSolverCounterUnsat, 228 mSDtfsCounter, 992 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 904 GetRequests, 795 SyntacticMatches, 7 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3623 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 407 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 5/10 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L523] int *a, *b; [L524] int n; [L536] n = 1 VAL [a={0:0}, b={0:0}, n=1] [L537] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L540] a = malloc(n * sizeof(*a)) [L541] b = malloc(n * sizeof(*b)) [L542] EXPR b++ VAL [a={-2:0}, b={-1:4}, n=1] [L542] *b++ = 0 [L543] CALL foo() [L528] int i; [L529] i = 0 VAL [a={-2:0}, b={-1:4}, i=0, n=1] [L529] COND FALSE !(i < n) VAL [a={-2:0}, b={-1:4}, i=0, n=1] [L529] COND TRUE i < n VAL [a={-2:0}, b={-1:4}, i=0, n=1] [L530] a[i] = n [L529] i++ VAL [a={-2:0}, b={-1:4}, i=1, n=1] [L529] COND TRUE i < n VAL [a={-2:0}, b={-1:4}, n=1] [L531] i = 0 VAL [a={-2:0}, b={-1:4}, i=0, n=1] [L531] COND TRUE i < n - 1 VAL [a={-2:0}, b={-1:4}, n=1] [L543] RET foo() [L544] b[-2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 119.5MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 510.36ms. Allocated memory is still 161.5MB. Free memory was 133.8MB in the beginning and 116.0MB in the end (delta: 17.8MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.39ms. Allocated memory is still 161.5MB. Free memory was 116.0MB in the beginning and 113.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.44ms. Allocated memory is still 161.5MB. Free memory was 113.9MB in the beginning and 112.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 593.40ms. Allocated memory is still 161.5MB. Free memory was 112.6MB in the beginning and 121.2MB in the end (delta: -8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 8669.74ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 121.2MB in the beginning and 85.9MB in the end (delta: 35.3MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. * Witness Printer took 57.10ms. Allocated memory is still 195.0MB. Free memory was 85.9MB in the beginning and 83.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 00:26:34,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faa82a8-ee63-487f-b42b-d15c96599b4f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)