./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/NonTermination3-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/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_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/NonTermination3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fabc9d8a61dd824da0c561a6d62c57fe8eb320f6ad8009599cd12699fa04e01c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:00:20,758 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:00:20,881 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-11-19 03:00:20,890 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:00:20,891 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:00:20,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:00:20,933 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:00:20,934 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:00:20,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:00:20,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:00:20,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:00:20,941 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 03:00:20,941 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 03:00:20,943 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 03:00:20,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:00:20,944 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:00:20,944 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:00:20,945 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:00:20,945 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:00:20,946 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:00:20,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:00:20,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:00:20,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:00:20,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:00:20,948 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:00:20,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:00:20,949 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_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fabc9d8a61dd824da0c561a6d62c57fe8eb320f6ad8009599cd12699fa04e01c [2023-11-19 03:00:21,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:00:21,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:00:21,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:00:21,233 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:00:21,236 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:00:21,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/termination-crafted/NonTermination3-1.c [2023-11-19 03:00:24,230 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:00:24,449 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:00:24,450 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/sv-benchmarks/c/termination-crafted/NonTermination3-1.c [2023-11-19 03:00:24,458 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL/data/bdb44ac4a/f3fef330baf3466ca040800fd92aa7c7/FLAG90103f91d [2023-11-19 03:00:24,472 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL/data/bdb44ac4a/f3fef330baf3466ca040800fd92aa7c7 [2023-11-19 03:00:24,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:00:24,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:00:24,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:00:24,480 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:00:24,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:00:24,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:00:24" (1/1) ... [2023-11-19 03:00:24,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ab1e0e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:24, skipping insertion in model container [2023-11-19 03:00:24,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:00:24" (1/1) ... [2023-11-19 03:00:24,505 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:00:24,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:00:24,659 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:00:24,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:00:24,687 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:00:24,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:24 WrapperNode [2023-11-19 03:00:24,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:00:24,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:00:24,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:00:24,690 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:00:24,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:24" (1/1) ... [2023-11-19 03:00:24,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:24" (1/1) ... [2023-11-19 03:00:24,718 INFO L138 Inliner]: procedures = 8, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2023-11-19 03:00:24,718 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:00:24,719 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:00:24,719 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:00:24,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:00:24,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:24" (1/1) ... [2023-11-19 03:00:24,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:24" (1/1) ... [2023-11-19 03:00:24,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:24" (1/1) ... [2023-11-19 03:00:24,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:24" (1/1) ... [2023-11-19 03:00:24,736 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:24" (1/1) ... [2023-11-19 03:00:24,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:24" (1/1) ... [2023-11-19 03:00:24,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:24" (1/1) ... [2023-11-19 03:00:24,741 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:24" (1/1) ... [2023-11-19 03:00:24,743 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:00:24,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:00:24,744 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:00:24,744 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:00:24,745 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:24" (1/1) ... [2023-11-19 03:00:24,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:00:24,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:00:24,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:00:24,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:00:24,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:00:24,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:00:24,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:00:24,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:00:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:00:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:00:24,920 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:00:24,923 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:00:25,153 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:00:25,199 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:00:25,199 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:00:25,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:00:25 BoogieIcfgContainer [2023-11-19 03:00:25,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:00:25,204 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:00:25,204 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:00:25,215 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:00:25,215 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:00:25" (1/1) ... [2023-11-19 03:00:25,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:00:25,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:25,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-11-19 03:00:25,273 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-19 03:00:25,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:00:25,275 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:25,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:25,453 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 03:00:25,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:25,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-19 03:00:25,502 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-19 03:00:25,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:00:25,503 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:25,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:25,698 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 03:00:25,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:25,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2023-11-19 03:00:25,813 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-19 03:00:25,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:00:25,813 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:25,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:26,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:26,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:26,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-11-19 03:00:26,461 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-19 03:00:26,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:00:26,463 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:26,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:26,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:26,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:26,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2023-11-19 03:00:26,723 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-11-19 03:00:26,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:00:26,724 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:26,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:26,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:00:26,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:26,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2023-11-19 03:00:26,815 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-11-19 03:00:26,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:00:26,815 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:26,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:27,081 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:00:27,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:27,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2023-11-19 03:00:27,635 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-11-19 03:00:27,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:00:27,638 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:27,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:27,691 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:00:27,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:27,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2023-11-19 03:00:27,749 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2023-11-19 03:00:27,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:00:27,750 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:27,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:27,837 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:28,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:28,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2023-11-19 03:00:28,158 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2023-11-19 03:00:28,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:00:28,158 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:28,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:28,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:28,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2023-11-19 03:00:28,584 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-11-19 03:00:28,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 03:00:28,585 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:28,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:28,676 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:29,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:29,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2023-11-19 03:00:29,067 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-19 03:00:29,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:00:29,067 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:29,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:29,183 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:29,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:29,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 30 states and 35 transitions. [2023-11-19 03:00:29,594 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-11-19 03:00:29,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 03:00:29,594 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:29,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:29,742 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:30,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:30,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 32 states and 37 transitions. [2023-11-19 03:00:30,228 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2023-11-19 03:00:30,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 03:00:30,228 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:30,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:30,407 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:30,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:30,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 34 states and 39 transitions. [2023-11-19 03:00:30,901 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2023-11-19 03:00:30,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 03:00:30,902 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:30,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:31,091 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:31,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:31,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 36 states and 41 transitions. [2023-11-19 03:00:31,632 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2023-11-19 03:00:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 03:00:31,633 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:31,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:31,791 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:32,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:32,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 38 states and 42 transitions. [2023-11-19 03:00:32,170 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2023-11-19 03:00:32,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:00:32,171 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:32,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:32,537 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-19 03:00:36,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:36,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 43 states and 51 transitions. [2023-11-19 03:00:36,683 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2023-11-19 03:00:36,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:00:36,684 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:36,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:36,749 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-19 03:00:37,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:37,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 42 states and 50 transitions. [2023-11-19 03:00:37,016 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2023-11-19 03:00:37,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:00:37,019 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:37,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:00:37,069 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:00:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:00:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:00:37,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:00:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:00:37,311 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 18 iterations. [2023-11-19 03:00:37,339 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 03:00:37,342 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short4 could not be translated [2023-11-19 03:00:37,342 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-19 03:00:37,343 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short4 could not be translated [2023-11-19 03:00:37,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:00:37 ImpRootNode [2023-11-19 03:00:37,348 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:00:37,348 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:00:37,348 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:00:37,349 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:00:37,349 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:00:25" (3/4) ... [2023-11-19 03:00:37,350 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:00:37,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 03:00:37,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short4 could not be translated [2023-11-19 03:00:37,360 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-19 03:00:37,385 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short4 could not be translated [2023-11-19 03:00:37,451 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:00:37,452 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:00:37,453 INFO L158 Benchmark]: Toolchain (without parser) took 12975.18ms. Allocated memory was 148.9MB in the beginning and 232.8MB in the end (delta: 83.9MB). Free memory was 103.9MB in the beginning and 196.3MB in the end (delta: -92.4MB). Peak memory consumption was 124.2MB. Max. memory is 16.1GB. [2023-11-19 03:00:37,453 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 109.1MB. Free memory was 62.2MB in the beginning and 62.1MB in the end (delta: 126.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:00:37,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.51ms. Allocated memory is still 148.9MB. Free memory was 103.9MB in the beginning and 94.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:00:37,459 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.31ms. Allocated memory is still 148.9MB. Free memory was 94.2MB in the beginning and 92.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:00:37,459 INFO L158 Benchmark]: Boogie Preprocessor took 24.16ms. Allocated memory is still 148.9MB. Free memory was 92.8MB in the beginning and 91.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:00:37,460 INFO L158 Benchmark]: RCFGBuilder took 459.36ms. Allocated memory is still 148.9MB. Free memory was 91.4MB in the beginning and 118.4MB in the end (delta: -27.0MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2023-11-19 03:00:37,461 INFO L158 Benchmark]: CodeCheck took 12143.43ms. Allocated memory was 148.9MB in the beginning and 232.8MB in the end (delta: 83.9MB). Free memory was 118.4MB in the beginning and 69.2MB in the end (delta: 49.2MB). Peak memory consumption was 132.3MB. Max. memory is 16.1GB. [2023-11-19 03:00:37,461 INFO L158 Benchmark]: Witness Printer took 103.74ms. Allocated memory is still 232.8MB. Free memory was 69.2MB in the beginning and 196.3MB in the end (delta: -127.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:00:37,464 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, 18 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 12.1s, OverallIterations: 18, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 704 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 383 mSDsluCounter, 348 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 110 mSDsCounter, 582 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1649 IncrementalHoareTripleChecker+Invalid, 2231 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 582 mSolverCounterUnsat, 238 mSDtfsCounter, 1649 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1781 GetRequests, 1528 SyntacticMatches, 79 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11592 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 829 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 7 PerfectInterpolantSequences, 212/499 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L10] int i = __VERIFIER_nondet_int(); [L11] int a[10]; [L13] int n = 0; VAL [a={2:0}, i=3, n=0] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, i=3, n=1] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, i=3, n=2] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, i=3, n=3] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, i=3, n=4] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, i=3, n=5] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, i=3, n=6] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, i=3, n=7] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, i=3, n=8] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, i=3, n=9] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, i=3, n=10] [L13] COND FALSE !(n < 10) [L17] 0 <= i && i < 10 && a[i] >= 0 VAL [a={2:0}, i=3] [L17] EXPR a[i] [L17] 0 <= i && i < 10 && a[i] >= 0 VAL [a={2:0}, i=3] [L17] COND TRUE 0 <= i && i < 10 && a[i] >= 0 [L18] i = __VERIFIER_nondet_int() [L20] a[i] = 0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 109.1MB. Free memory was 62.2MB in the beginning and 62.1MB in the end (delta: 126.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 209.51ms. Allocated memory is still 148.9MB. Free memory was 103.9MB in the beginning and 94.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.31ms. Allocated memory is still 148.9MB. Free memory was 94.2MB in the beginning and 92.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.16ms. Allocated memory is still 148.9MB. Free memory was 92.8MB in the beginning and 91.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.36ms. Allocated memory is still 148.9MB. Free memory was 91.4MB in the beginning and 118.4MB in the end (delta: -27.0MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * CodeCheck took 12143.43ms. Allocated memory was 148.9MB in the beginning and 232.8MB in the end (delta: 83.9MB). Free memory was 118.4MB in the beginning and 69.2MB in the end (delta: 49.2MB). Peak memory consumption was 132.3MB. Max. memory is 16.1GB. * Witness Printer took 103.74ms. Allocated memory is still 232.8MB. Free memory was 69.2MB in the beginning and 196.3MB in the end (delta: -127.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short4 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 03:00:37,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad538d18-8b57-4cbe-8013-bdf05bc9bcc9/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)