./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/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_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/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 32bit --witnessprinter.graph.data.programhash 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:08:52,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:08:52,699 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-19 03:08:52,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:08:52,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:08:52,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:08:52,730 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:08:52,730 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:08:52,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:08:52,732 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:08:52,732 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:08:52,733 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:08:52,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:08:52,734 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 03:08:52,735 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 03:08:52,735 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 03:08:52,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:08:52,736 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:08:52,737 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:08:52,738 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:08:52,738 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:08:52,739 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:08:52,739 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:08:52,740 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:08:52,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:08:52,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:08:52,742 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:08:52,742 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:08:52,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:08:52,743 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_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc [2023-11-19 03:08:52,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:08:53,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:08:53,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:08:53,013 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:08:53,014 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:08:53,015 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2023-11-19 03:08:56,085 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:08:56,454 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:08:56,455 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2023-11-19 03:08:56,471 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/data/3c28c3e57/8dceb167cb554e8cb63c7b81a1036876/FLAG392080cd2 [2023-11-19 03:08:56,486 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/data/3c28c3e57/8dceb167cb554e8cb63c7b81a1036876 [2023-11-19 03:08:56,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:08:56,490 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:08:56,492 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:08:56,492 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:08:56,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:08:56,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:08:56" (1/1) ... [2023-11-19 03:08:56,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f7dd9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:56, skipping insertion in model container [2023-11-19 03:08:56,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:08:56" (1/1) ... [2023-11-19 03:08:56,546 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:08:57,029 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:08:57,055 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:08:57,135 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:08:57,177 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:08:57,185 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:08:57,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:57 WrapperNode [2023-11-19 03:08:57,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:08:57,187 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:08:57,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:08:57,187 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:08:57,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:57" (1/1) ... [2023-11-19 03:08:57,214 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:57" (1/1) ... [2023-11-19 03:08:57,236 INFO L138 Inliner]: procedures = 164, calls = 70, calls flagged for inlining = 30, calls inlined = 5, statements flattened = 45 [2023-11-19 03:08:57,236 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:08:57,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:08:57,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:08:57,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:08:57,247 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:57" (1/1) ... [2023-11-19 03:08:57,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:57" (1/1) ... [2023-11-19 03:08:57,252 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:57" (1/1) ... [2023-11-19 03:08:57,252 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:57" (1/1) ... [2023-11-19 03:08:57,259 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:57" (1/1) ... [2023-11-19 03:08:57,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:57" (1/1) ... [2023-11-19 03:08:57,262 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:57" (1/1) ... [2023-11-19 03:08:57,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:57" (1/1) ... [2023-11-19 03:08:57,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:08:57,267 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:08:57,267 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:08:57,267 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:08:57,268 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:57" (1/1) ... [2023-11-19 03:08:57,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:08:57,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:08:57,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:08:57,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:08:57,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 03:08:57,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:08:57,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:08:57,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 03:08:57,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:08:57,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:08:57,515 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:08:57,517 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:08:57,648 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:08:57,748 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:08:57,749 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:08:57,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:08:57 BoogieIcfgContainer [2023-11-19 03:08:57,755 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:08:57,756 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:08:57,757 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:08:57,767 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:08:57,768 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:08:57" (1/1) ... [2023-11-19 03:08:57,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:08:57,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:08:57,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 03:08:57,837 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 03:08:57,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:08:57,844 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:08:57,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:08:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:08:58,155 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 03:08:58,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:08:58,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-19 03:08:58,192 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-19 03:08:58,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:08:58,192 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:08:58,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:08:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:08:58,473 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 03:08:58,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:08:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-11-19 03:08:58,585 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-11-19 03:08:58,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:08:58,586 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:08:58,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:08:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:08:58,689 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 03:08:58,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:08:58,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 03:08:58,853 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 03:08:58,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:08:58,856 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:08:58,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:08:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:08:59,050 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 03:08:59,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:08:59,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-19 03:08:59,374 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-19 03:08:59,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:08:59,375 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:08:59,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:08:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:08:59,422 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:08:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:08:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:08:59,505 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:08:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:08:59,548 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2023-11-19 03:08:59,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:08:59 ImpRootNode [2023-11-19 03:08:59,577 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:08:59,577 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:08:59,577 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:08:59,577 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:08:59,578 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:08:57" (3/4) ... [2023-11-19 03:08:59,580 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:08:59,581 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:08:59,582 INFO L158 Benchmark]: Toolchain (without parser) took 3091.52ms. Allocated memory is still 151.0MB. Free memory was 108.4MB in the beginning and 98.0MB in the end (delta: 10.4MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2023-11-19 03:08:59,583 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:08:59,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.21ms. Allocated memory is still 151.0MB. Free memory was 108.4MB in the beginning and 86.6MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 03:08:59,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.63ms. Allocated memory is still 151.0MB. Free memory was 86.6MB in the beginning and 84.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:08:59,586 INFO L158 Benchmark]: Boogie Preprocessor took 29.07ms. Allocated memory is still 151.0MB. Free memory was 84.6MB in the beginning and 83.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:08:59,591 INFO L158 Benchmark]: RCFGBuilder took 488.65ms. Allocated memory is still 151.0MB. Free memory was 83.3MB in the beginning and 108.3MB in the end (delta: -25.1MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-11-19 03:08:59,591 INFO L158 Benchmark]: CodeCheck took 1820.31ms. Allocated memory is still 151.0MB. Free memory was 108.3MB in the beginning and 98.0MB in the end (delta: 10.3MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2023-11-19 03:08:59,592 INFO L158 Benchmark]: Witness Printer took 4.14ms. Allocated memory is still 151.0MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:08:59,601 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 14 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - UnprovableResult [Line: 764]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 764. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L765] CALL entry_point() [L758] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] COND TRUE \read(*p) [L760] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L760] RET, EXPR ldv_malloc(sizeof(int)) [L760] int *q = (int *)ldv_malloc(sizeof(int)); [L761] EXPR free(q) VAL [ldv_global_msg_list={1:0}, p={-1:0}, q={-2:0}] [L761] EXPR free(q) VAL [ldv_global_msg_list={1:0}, p={-1:0}, q={-2:0}] [L761] EXPR free(q) [L759-L762] { int *q = (int *)ldv_malloc(sizeof(int)); free(q); } VAL [ldv_global_msg_list={1:0}, p={-1:0}] [L765] RET entry_point() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.21ms. Allocated memory is still 151.0MB. Free memory was 108.4MB in the beginning and 86.6MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.63ms. Allocated memory is still 151.0MB. Free memory was 86.6MB in the beginning and 84.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.07ms. Allocated memory is still 151.0MB. Free memory was 84.6MB in the beginning and 83.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 488.65ms. Allocated memory is still 151.0MB. Free memory was 83.3MB in the beginning and 108.3MB in the end (delta: -25.1MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * CodeCheck took 1820.31ms. Allocated memory is still 151.0MB. Free memory was 108.3MB in the beginning and 98.0MB in the end (delta: 10.3MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Witness Printer took 4.14ms. Allocated memory is still 151.0MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 03:08:59,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/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_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/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 32bit --witnessprinter.graph.data.programhash 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:09:02,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:09:02,439 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2023-11-19 03:09:02,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:09:02,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:09:02,493 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:09:02,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:09:02,494 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:09:02,495 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:09:02,500 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:09:02,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:09:02,501 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 03:09:02,502 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 03:09:02,504 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 03:09:02,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:09:02,504 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:09:02,505 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:09:02,505 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:09:02,506 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:09:02,507 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:09:02,507 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:09:02,508 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:09:02,508 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:09:02,509 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:09:02,509 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:09:02,509 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:09:02,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:09:02,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:09:02,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:09:02,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:09:02,513 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:09:02,513 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:09:02,514 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:09:02,514 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:09:02,514 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc [2023-11-19 03:09:02,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:09:02,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:09:02,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:09:02,937 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:09:02,937 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:09:02,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2023-11-19 03:09:06,262 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:09:06,593 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:09:06,593 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2023-11-19 03:09:06,612 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/data/a842e515e/d99dae6a1d0545cc99642007eeea1717/FLAG5eb587e0a [2023-11-19 03:09:06,627 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/data/a842e515e/d99dae6a1d0545cc99642007eeea1717 [2023-11-19 03:09:06,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:09:06,631 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:09:06,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:09:06,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:09:06,637 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:09:06,638 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:09:06" (1/1) ... [2023-11-19 03:09:06,639 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6380e0cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:06, skipping insertion in model container [2023-11-19 03:09:06,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:09:06" (1/1) ... [2023-11-19 03:09:06,727 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:09:07,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:09:07,175 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 03:09:07,191 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:09:07,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:09:07,322 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:09:07,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:09:07,482 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:09:07,491 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:09:07,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:07 WrapperNode [2023-11-19 03:09:07,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:09:07,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:09:07,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:09:07,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:09:07,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:07" (1/1) ... [2023-11-19 03:09:07,555 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:07" (1/1) ... [2023-11-19 03:09:07,575 INFO L138 Inliner]: procedures = 165, calls = 70, calls flagged for inlining = 30, calls inlined = 5, statements flattened = 44 [2023-11-19 03:09:07,576 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:09:07,577 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:09:07,577 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:09:07,577 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:09:07,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:07" (1/1) ... [2023-11-19 03:09:07,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:07" (1/1) ... [2023-11-19 03:09:07,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:07" (1/1) ... [2023-11-19 03:09:07,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:07" (1/1) ... [2023-11-19 03:09:07,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:07" (1/1) ... [2023-11-19 03:09:07,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:07" (1/1) ... [2023-11-19 03:09:07,617 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:07" (1/1) ... [2023-11-19 03:09:07,619 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:07" (1/1) ... [2023-11-19 03:09:07,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:09:07,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:09:07,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:09:07,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:09:07,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:07" (1/1) ... [2023-11-19 03:09:07,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:09:07,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:09:07,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:09:07,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:09:07,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 03:09:07,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:09:07,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:09:07,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 03:09:07,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:09:07,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:09:07,889 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:09:07,892 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:09:08,122 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:09:08,270 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:09:08,284 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:09:08,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:09:08 BoogieIcfgContainer [2023-11-19 03:09:08,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:09:08,290 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:09:08,290 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:09:08,302 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:09:08,302 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:09:08" (1/1) ... [2023-11-19 03:09:08,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:09:08,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:08,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 03:09:08,391 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 03:09:08,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:09:08,394 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:08,395 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:09:08,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:09:08,398 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:09:08,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:09:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:08,523 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:09:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:08,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:09:08,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:08,677 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 03:09:08,680 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:09:08,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 03:09:08,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:08,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-19 03:09:08,731 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-19 03:09:08,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:09:08,731 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:08,731 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:09:08,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:09:08,733 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:09:08,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 03:09:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:08,834 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:09:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:08,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:09:08,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:09,039 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 03:09:09,041 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-11-19 03:09:09,047 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 03:09:09,048 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-11-19 03:09:09,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-19 03:09:09,098 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 03:09:09,100 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:09:09,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-19 03:09:09,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:09,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-11-19 03:09:09,264 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-11-19 03:09:09,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:09:09,265 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:09,265 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:09:09,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:09:09,281 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:09:09,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 03:09:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:09,380 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:09:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:09,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:09:09,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:09,470 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 03:09:09,471 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-11-19 03:09:09,558 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 03:09:09,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 03:09:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:09,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 03:09:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 03:09:09,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:09:09,965 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:09,965 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:09:09,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:09:09,966 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:09:10,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 03:09:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:10,112 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:09:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:10,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:09:10,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:10,185 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 03:09:10,186 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-11-19 03:09:10,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-11-19 03:09:10,284 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 03:09:10,286 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:09:10,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-11-19 03:09:10,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:10,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-19 03:09:10,881 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-19 03:09:10,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:09:10,881 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:10,881 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:09:10,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:09:10,883 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:09:10,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 03:09:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:09:11,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:09:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:09:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:09:11,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:09:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:09:11,209 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:09:11,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-19 03:09:11,217 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2023-11-19 03:09:11,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:09:11 ImpRootNode [2023-11-19 03:09:11,266 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:09:11,266 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:09:11,266 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:09:11,267 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:09:11,267 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:09:08" (3/4) ... [2023-11-19 03:09:11,269 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:09:11,271 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:09:11,272 INFO L158 Benchmark]: Toolchain (without parser) took 4640.67ms. Allocated memory was 75.5MB in the beginning and 119.5MB in the end (delta: 44.0MB). Free memory was 50.7MB in the beginning and 70.1MB in the end (delta: -19.3MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2023-11-19 03:09:11,274 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 75.5MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:09:11,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 860.08ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 50.7MB in the beginning and 68.7MB in the end (delta: -18.0MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2023-11-19 03:09:11,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.23ms. Allocated memory is still 98.6MB. Free memory was 68.3MB in the beginning and 66.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:09:11,279 INFO L158 Benchmark]: Boogie Preprocessor took 55.86ms. Allocated memory is still 98.6MB. Free memory was 66.2MB in the beginning and 65.0MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:09:11,284 INFO L158 Benchmark]: RCFGBuilder took 655.68ms. Allocated memory is still 98.6MB. Free memory was 65.0MB in the beginning and 76.1MB in the end (delta: -11.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 03:09:11,285 INFO L158 Benchmark]: CodeCheck took 2975.74ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 76.1MB in the beginning and 70.9MB in the end (delta: 5.2MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2023-11-19 03:09:11,286 INFO L158 Benchmark]: Witness Printer took 4.72ms. Allocated memory is still 119.5MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:09:11,296 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 14 mSDtfsCounter, 90 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 18 NumberOfNonLiveVariables, 105 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - UnprovableResult [Line: 764]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 764. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L765] CALL entry_point() [L758] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] COND TRUE \read(*p) [L760] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L760] RET, EXPR ldv_malloc(sizeof(int)) [L760] int *q = (int *)ldv_malloc(sizeof(int)); [L761] EXPR free(q) VAL [ldv_global_msg_list={1:0}, p={2:0}, q={0:0}] [L761] EXPR free(q) VAL [ldv_global_msg_list={1:0}, p={2:0}, q={0:0}] [L761] EXPR free(q) [L759-L762] { int *q = (int *)ldv_malloc(sizeof(int)); free(q); } VAL [ldv_global_msg_list={1:0}, p={2:0}] [L765] RET entry_point() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 75.5MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 860.08ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 50.7MB in the beginning and 68.7MB in the end (delta: -18.0MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.23ms. Allocated memory is still 98.6MB. Free memory was 68.3MB in the beginning and 66.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.86ms. Allocated memory is still 98.6MB. Free memory was 66.2MB in the beginning and 65.0MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 655.68ms. Allocated memory is still 98.6MB. Free memory was 65.0MB in the beginning and 76.1MB in the end (delta: -11.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * CodeCheck took 2975.74ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 76.1MB in the beginning and 70.9MB in the end (delta: 5.2MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * Witness Printer took 4.72ms. Allocated memory is still 119.5MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 03:09:11,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0d0b2d-e142-462c-aa6b-85ce637e1b3d/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 Result: UNKNOWN: Overapproximated counterexample