./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-token-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/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_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-token-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/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-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10f8c5ed101296da8e76853e36294f37ed1d85898917b59e645db1ac667d60a8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:08:21,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:08:22,085 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-11-19 04:08:22,092 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:08:22,093 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:08:22,122 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:08:22,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:08:22,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:08:22,125 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:08:22,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:08:22,126 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:08:22,127 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:08:22,128 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:08:22,128 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:08:22,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:08:22,130 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:08:22,130 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:08:22,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:08:22,132 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:08:22,132 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:08:22,136 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:08:22,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:08:22,138 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:08:22,138 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:08:22,139 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:08:22,140 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:08:22,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:08:22,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:08:22,142 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:08:22,142 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:08:22,143 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:08:22,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:08:22,144 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_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f8c5ed101296da8e76853e36294f37ed1d85898917b59e645db1ac667d60a8 [2023-11-19 04:08:22,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:08:22,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:08:22,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:08:22,549 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:08:22,550 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:08:22,552 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/forester-heap/sll-token-1.i [2023-11-19 04:08:25,746 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:08:26,080 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:08:26,081 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/sv-benchmarks/c/forester-heap/sll-token-1.i [2023-11-19 04:08:26,098 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/bin/ukojak-verify-G8NBE6pJGL/data/0a4fc1523/5bb92b722c984134830371d514573010/FLAG78742c763 [2023-11-19 04:08:26,118 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/bin/ukojak-verify-G8NBE6pJGL/data/0a4fc1523/5bb92b722c984134830371d514573010 [2023-11-19 04:08:26,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:08:26,127 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:08:26,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:08:26,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:08:26,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:08:26,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:08:26" (1/1) ... [2023-11-19 04:08:26,142 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf9988e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:26, skipping insertion in model container [2023-11-19 04:08:26,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:08:26" (1/1) ... [2023-11-19 04:08:26,214 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:08:26,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:08:26,640 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:08:26,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:08:26,740 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:08:26,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:26 WrapperNode [2023-11-19 04:08:26,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:08:26,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:08:26,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:08:26,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:08:26,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:26" (1/1) ... [2023-11-19 04:08:26,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:26" (1/1) ... [2023-11-19 04:08:26,804 INFO L138 Inliner]: procedures = 119, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2023-11-19 04:08:26,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:08:26,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:08:26,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:08:26,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:08:26,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:26" (1/1) ... [2023-11-19 04:08:26,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:26" (1/1) ... [2023-11-19 04:08:26,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:26" (1/1) ... [2023-11-19 04:08:26,821 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:26" (1/1) ... [2023-11-19 04:08:26,830 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:26" (1/1) ... [2023-11-19 04:08:26,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:26" (1/1) ... [2023-11-19 04:08:26,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:26" (1/1) ... [2023-11-19 04:08:26,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:26" (1/1) ... [2023-11-19 04:08:26,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:08:26,850 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:08:26,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:08:26,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:08:26,852 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:26" (1/1) ... [2023-11-19 04:08:26,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:08:26,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:08:26,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:08:26,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:08:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:08:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:08:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:08:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:08:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:08:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:08:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:08:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:08:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:08:26,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:08:27,053 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:08:27,055 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:08:27,437 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:08:27,460 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:08:27,463 INFO L302 CfgBuilder]: Removed 15 assume(true) statements. [2023-11-19 04:08:27,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:08:27 BoogieIcfgContainer [2023-11-19 04:08:27,469 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:08:27,469 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:08:27,470 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:08:27,484 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:08:27,485 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:08:27" (1/1) ... [2023-11-19 04:08:27,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:08:27,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:27,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 55 states and 84 transitions. [2023-11-19 04:08:27,562 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions. [2023-11-19 04:08:27,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:08:27,566 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:27,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:27,851 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 04:08:27,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:27,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 51 states and 75 transitions. [2023-11-19 04:08:27,897 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions. [2023-11-19 04:08:27,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:08:27,898 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:27,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:27,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:28,088 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 04:08:28,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:28,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 54 states and 76 transitions. [2023-11-19 04:08:28,140 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 76 transitions. [2023-11-19 04:08:28,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:08:28,141 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:28,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:28,193 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 04:08:28,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:28,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 53 states and 70 transitions. [2023-11-19 04:08:28,201 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 70 transitions. [2023-11-19 04:08:28,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:08:28,202 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:28,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:28,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:08:28,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:28,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 46 states and 61 transitions. [2023-11-19 04:08:28,376 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2023-11-19 04:08:28,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:08:28,377 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:28,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:08:28,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:08:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:08:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:08:28,546 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:08:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:08:28,584 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2023-11-19 04:08:28,608 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-19 04:08:28,609 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-19 04:08:28,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:08:28 ImpRootNode [2023-11-19 04:08:28,614 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:08:28,614 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:08:28,615 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:08:28,615 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:08:28,615 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:08:27" (3/4) ... [2023-11-19 04:08:28,616 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 04:08:28,620 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-19 04:08:28,621 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-19 04:08:28,656 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:08:28,656 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:08:28,657 INFO L158 Benchmark]: Toolchain (without parser) took 2530.10ms. Allocated memory is still 146.8MB. Free memory was 101.4MB in the beginning and 109.6MB in the end (delta: -8.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:08:28,657 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 113.2MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:08:28,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 609.29ms. Allocated memory is still 146.8MB. Free memory was 101.0MB in the beginning and 83.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 04:08:28,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.71ms. Allocated memory is still 146.8MB. Free memory was 83.8MB in the beginning and 81.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:08:28,659 INFO L158 Benchmark]: Boogie Preprocessor took 44.06ms. Allocated memory is still 146.8MB. Free memory was 81.7MB in the beginning and 80.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:08:28,659 INFO L158 Benchmark]: RCFGBuilder took 618.60ms. Allocated memory is still 146.8MB. Free memory was 80.0MB in the beginning and 115.0MB in the end (delta: -35.0MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-11-19 04:08:28,660 INFO L158 Benchmark]: CodeCheck took 1144.50ms. Allocated memory is still 146.8MB. Free memory was 115.0MB in the beginning and 111.6MB in the end (delta: 3.4MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2023-11-19 04:08:28,660 INFO L158 Benchmark]: Witness Printer took 41.66ms. Allocated memory is still 146.8MB. Free memory was 111.6MB in the beginning and 109.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:08:28,663 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, 55 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 60 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 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: 992]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1003] SLL* head = malloc(sizeof(SLL)); [L1004] head->next = ((void*)0) [L1005] head->data = 0 [L1007] SLL* x = head; VAL [head={-2:0}, x={-2:0}] [L1010] COND FALSE !(__VERIFIER_nondet_int()) [L1018] x->data = 1 [L1019] x->next = malloc(sizeof(SLL)) [L1020] EXPR x->next [L1020] x->next->data = 2 [L1022] x = head VAL [head={-2:0}, x={-2:0}] [L1024] COND FALSE !(!(((void*)0) != x)) VAL [head={-2:0}, x={-2:0}] [L1026] EXPR x->data VAL [head={-2:0}, x={-2:0}] [L1026] COND FALSE !(1 != x->data) [L1031] EXPR x->data VAL [head={-2:0}, x={-2:0}] [L1031] COND TRUE !(2 == x->data) [L1031] CALL reach_error() [L992] COND FALSE !(0) [L992] __assert_fail ("0", "sll-token-1.c", 12, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 113.2MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 609.29ms. Allocated memory is still 146.8MB. Free memory was 101.0MB in the beginning and 83.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.71ms. Allocated memory is still 146.8MB. Free memory was 83.8MB in the beginning and 81.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.06ms. Allocated memory is still 146.8MB. Free memory was 81.7MB in the beginning and 80.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 618.60ms. Allocated memory is still 146.8MB. Free memory was 80.0MB in the beginning and 115.0MB in the end (delta: -35.0MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * CodeCheck took 1144.50ms. Allocated memory is still 146.8MB. Free memory was 115.0MB in the beginning and 111.6MB in the end (delta: 3.4MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Witness Printer took 41.66ms. Allocated memory is still 146.8MB. Free memory was 111.6MB in the beginning and 109.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 04:08:28,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d69f4d7b-d72e-4511-ada4-f2355be1f7b3/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)