./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-broom/linux-hlist-middle-data.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-broom/linux-hlist-middle-data.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5c4e150ef364d23aeab0a373d461c06d560c0fa17d69d62b5545e1af197924d4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:37:44,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:37:44,878 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-11-19 02:37:44,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:37:44,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:37:44,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:37:44,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:37:44,931 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:37:44,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:37:44,937 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:37:44,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:37:44,939 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 02:37:44,940 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 02:37:44,942 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 02:37:44,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:37:44,943 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:37:44,943 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:37:44,943 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:37:44,944 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:37:44,944 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:37:44,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:37:44,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:37:44,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:37:44,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:37:44,947 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:37:44,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:37:44,948 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_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c4e150ef364d23aeab0a373d461c06d560c0fa17d69d62b5545e1af197924d4 [2023-11-19 02:37:45,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:37:45,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:37:45,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:37:45,262 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:37:45,263 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:37:45,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/memsafety-broom/linux-hlist-middle-data.i [2023-11-19 02:37:48,469 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:37:48,843 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:37:48,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/sv-benchmarks/c/memsafety-broom/linux-hlist-middle-data.i [2023-11-19 02:37:48,882 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/data/e432b0fd3/9cfd504173a3449f8d3145c64105cd94/FLAGff36ce3a6 [2023-11-19 02:37:48,898 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/data/e432b0fd3/9cfd504173a3449f8d3145c64105cd94 [2023-11-19 02:37:48,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:37:48,903 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:37:48,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:37:48,908 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:37:48,913 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:37:48,914 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:37:48" (1/1) ... [2023-11-19 02:37:48,915 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a5dcd15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:48, skipping insertion in model container [2023-11-19 02:37:48,916 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:37:48" (1/1) ... [2023-11-19 02:37:49,021 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:37:49,279 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:37:49,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:37:49,542 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:37:49,575 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:37:49,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:37:49,662 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:37:49,669 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:37:49,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:49 WrapperNode [2023-11-19 02:37:49,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:37:49,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:37:49,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:37:49,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:37:49,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:49" (1/1) ... [2023-11-19 02:37:49,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:49" (1/1) ... [2023-11-19 02:37:49,733 INFO L138 Inliner]: procedures = 125, calls = 35, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 160 [2023-11-19 02:37:49,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:37:49,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:37:49,734 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:37:49,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:37:49,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:49" (1/1) ... [2023-11-19 02:37:49,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:49" (1/1) ... [2023-11-19 02:37:49,764 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:49" (1/1) ... [2023-11-19 02:37:49,764 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:49" (1/1) ... [2023-11-19 02:37:49,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:49" (1/1) ... [2023-11-19 02:37:49,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:49" (1/1) ... [2023-11-19 02:37:49,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:49" (1/1) ... [2023-11-19 02:37:49,787 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:49" (1/1) ... [2023-11-19 02:37:49,792 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:37:49,793 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:37:49,793 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:37:49,794 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:37:49,795 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:49" (1/1) ... [2023-11-19 02:37:49,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:37:49,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:37:49,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:37:49,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:37:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 02:37:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 02:37:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 02:37:49,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 02:37:49,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:37:49,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:37:49,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:37:50,033 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:37:50,035 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:37:50,621 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:37:50,837 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:37:50,838 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 02:37:50,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:37:50 BoogieIcfgContainer [2023-11-19 02:37:50,846 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:37:50,847 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:37:50,847 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:37:50,857 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:37:50,857 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:37:50" (1/1) ... [2023-11-19 02:37:50,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:37:50,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:50,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 86 states and 93 transitions. [2023-11-19 02:37:50,932 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 93 transitions. [2023-11-19 02:37:50,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-19 02:37:50,935 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:50,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:51,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:51,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:51,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 85 states and 92 transitions. [2023-11-19 02:37:51,181 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2023-11-19 02:37:51,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-19 02:37:51,182 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:51,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:51,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:51,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:51,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 84 states and 91 transitions. [2023-11-19 02:37:51,450 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2023-11-19 02:37:51,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 02:37:51,451 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:51,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:51,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:51,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:51,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 84 states and 90 transitions. [2023-11-19 02:37:51,517 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2023-11-19 02:37:51,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 02:37:51,518 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:51,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:51,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:51,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:51,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 83 states and 89 transitions. [2023-11-19 02:37:51,756 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2023-11-19 02:37:51,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 02:37:51,757 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:51,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:52,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:52,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 82 states and 88 transitions. [2023-11-19 02:37:52,121 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2023-11-19 02:37:52,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:37:52,122 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:52,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:52,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 86 states and 95 transitions. [2023-11-19 02:37:52,449 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2023-11-19 02:37:52,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:37:52,449 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:52,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:52,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:52,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:52,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 90 states and 100 transitions. [2023-11-19 02:37:52,764 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 100 transitions. [2023-11-19 02:37:52,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:37:52,765 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:52,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:52,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:52,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:52,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 89 states and 99 transitions. [2023-11-19 02:37:52,811 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 99 transitions. [2023-11-19 02:37:52,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:37:52,811 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:52,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:53,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:53,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:53,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 88 states and 98 transitions. [2023-11-19 02:37:53,271 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2023-11-19 02:37:53,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:37:53,271 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:53,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:53,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:53,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:53,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 87 states and 97 transitions. [2023-11-19 02:37:53,938 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2023-11-19 02:37:53,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:37:53,938 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:53,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:54,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:54,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:54,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 86 states and 96 transitions. [2023-11-19 02:37:54,791 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2023-11-19 02:37:54,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 02:37:54,792 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:54,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:37:54,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:37:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:37:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:37:54,869 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:37:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:37:54,925 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2023-11-19 02:37:54,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:37:54 ImpRootNode [2023-11-19 02:37:54,963 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:37:54,964 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:37:54,964 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:37:54,964 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:37:54,965 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:37:50" (3/4) ... [2023-11-19 02:37:54,965 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 02:37:55,036 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:37:55,037 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:37:55,037 INFO L158 Benchmark]: Toolchain (without parser) took 6134.38ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 84.7MB in the beginning and 54.9MB in the end (delta: 29.8MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2023-11-19 02:37:55,038 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 100.7MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:37:55,038 INFO L158 Benchmark]: CACSL2BoogieTranslator took 765.22ms. Allocated memory is still 123.7MB. Free memory was 84.3MB in the beginning and 62.5MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 02:37:55,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.75ms. Allocated memory is still 123.7MB. Free memory was 62.5MB in the beginning and 60.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:37:55,039 INFO L158 Benchmark]: Boogie Preprocessor took 58.05ms. Allocated memory is still 123.7MB. Free memory was 60.0MB in the beginning and 57.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:37:55,040 INFO L158 Benchmark]: RCFGBuilder took 1052.68ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 57.9MB in the beginning and 94.7MB in the end (delta: -36.8MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2023-11-19 02:37:55,040 INFO L158 Benchmark]: CodeCheck took 4116.09ms. Allocated memory is still 151.0MB. Free memory was 94.7MB in the beginning and 57.0MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-19 02:37:55,041 INFO L158 Benchmark]: Witness Printer took 73.11ms. Allocated memory is still 151.0MB. Free memory was 57.0MB in the beginning and 54.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:37:55,044 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, 86 locations, 47 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 205 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 132 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 437 IncrementalHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 68 mSDtfsCounter, 437 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 408 GetRequests, 344 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 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: [L2586] CALL, EXPR create() [L2556] struct hlist_head *head=malloc(sizeof(struct hlist_head)); [L2557] (head)->first = ((void *)0) VAL [head={24998:0}] [L2558] COND FALSE !(__VERIFIER_nondet_int()) [L2565] return head; [L2586] RET, EXPR create() [L2586] struct hlist_head *l = create(); [L2588] CALL loop(l) [L2569] struct my_item *now; VAL [head={24998:0}, head={24998:0}] [L2570] EXPR (head)->first [L2570] __typeof__((head)->first) ____ptr = ((head)->first); [L2570] EXPR ____ptr ? ({ void *__mptr = (void *)(____ptr); ((__typeof__(*(now)) *)(__mptr - __builtin_offsetof (__typeof__(*(now)), link))); }) : ((void *)0) [L2570] { __typeof__((head)->first) ____ptr = ((head)->first); ____ptr ? ({ void *__mptr = (void *)(____ptr); ((__typeof__(*(now)) *)(__mptr - __builtin_offsetof (__typeof__(*(now)), link))); }) : ((void *)0); } [L2570] { __typeof__((head)->first) ____ptr = ((head)->first); ____ptr ? ({ void *__mptr = (void *)(____ptr); ((__typeof__(*(now)) *)(__mptr - __builtin_offsetof (__typeof__(*(now)), link))); }) : ((void *)0); } [L2570] now = ({ __typeof__((head)->first) ____ptr = ((head)->first); ____ptr ? ({ void *__mptr = (void *)(____ptr); ((__typeof__(*(now)) *)(__mptr - __builtin_offsetof (__typeof__(*(now)), link))); }) : ((void *)0); }) [L2570] COND TRUE \read(*now) [L2571] FCALL do_data(&(now->data1), &(now->data2)) [L2570] (now)->link.next * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 100.7MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 765.22ms. Allocated memory is still 123.7MB. Free memory was 84.3MB in the beginning and 62.5MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.75ms. Allocated memory is still 123.7MB. Free memory was 62.5MB in the beginning and 60.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.05ms. Allocated memory is still 123.7MB. Free memory was 60.0MB in the beginning and 57.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1052.68ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 57.9MB in the beginning and 94.7MB in the end (delta: -36.8MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * CodeCheck took 4116.09ms. Allocated memory is still 151.0MB. Free memory was 94.7MB in the beginning and 57.0MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 73.11ms. Allocated memory is still 151.0MB. Free memory was 57.0MB in the beginning and 54.9MB 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! [2023-11-19 02:37:55,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b9ce8f-1205-4ccd-9f9b-74d19cdde958/bin/ukojak-verify-G8NBE6pJGL/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)