./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety-ext2/length_test03-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/memsafety-ext2/length_test03-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6e9221de91e231efa38b63f264828813e89f68c8ac306a629b3513c0e7bf1ed0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:43:49,983 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:43:50,051 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-11 23:43:50,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:43:50,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:43:50,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:43:50,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:43:50,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:43:50,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:43:50,085 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:43:50,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:43:50,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:43:50,087 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:43:50,088 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:43:50,088 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:43:50,089 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:43:50,090 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:43:50,090 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:43:50,091 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:43:50,092 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:43:50,092 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:43:50,093 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:43:50,093 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:43:50,094 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:43:50,095 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:43:50,095 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:43:50,096 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:43:50,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:43:50,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:43:50,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:43:50,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:43:50,098 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:43:50,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:43:50,099 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:43:50,100 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_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e9221de91e231efa38b63f264828813e89f68c8ac306a629b3513c0e7bf1ed0 [2023-11-11 23:43:50,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:43:50,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:43:50,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:43:50,443 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:43:50,444 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:43:50,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/memsafety-ext2/length_test03-1.i [2023-11-11 23:43:53,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:43:53,850 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:43:53,850 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/sv-benchmarks/c/memsafety-ext2/length_test03-1.i [2023-11-11 23:43:53,866 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/data/135aee1a5/9f5a9876d3d140a7af09f5bcdd31606f/FLAG85824d449 [2023-11-11 23:43:53,880 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/data/135aee1a5/9f5a9876d3d140a7af09f5bcdd31606f [2023-11-11 23:43:53,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:43:53,884 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:43:53,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:43:53,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:43:53,891 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:43:53,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:43:53" (1/1) ... [2023-11-11 23:43:53,893 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@188d5c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:53, skipping insertion in model container [2023-11-11 23:43:53,893 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:43:53" (1/1) ... [2023-11-11 23:43:53,936 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:43:54,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:43:54,318 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:43:54,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:43:54,427 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:43:54,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:54 WrapperNode [2023-11-11 23:43:54,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:43:54,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:43:54,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:43:54,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:43:54,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:54" (1/1) ... [2023-11-11 23:43:54,472 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:54" (1/1) ... [2023-11-11 23:43:54,505 INFO L138 Inliner]: procedures = 123, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 94 [2023-11-11 23:43:54,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:43:54,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:43:54,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:43:54,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:43:54,516 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:54" (1/1) ... [2023-11-11 23:43:54,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:54" (1/1) ... [2023-11-11 23:43:54,520 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:54" (1/1) ... [2023-11-11 23:43:54,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:54" (1/1) ... [2023-11-11 23:43:54,529 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:54" (1/1) ... [2023-11-11 23:43:54,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:54" (1/1) ... [2023-11-11 23:43:54,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:54" (1/1) ... [2023-11-11 23:43:54,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:54" (1/1) ... [2023-11-11 23:43:54,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:43:54,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:43:54,540 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:43:54,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:43:54,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:54" (1/1) ... [2023-11-11 23:43:54,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:43:54,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:43:54,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:43:54,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:43:54,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-11 23:43:54,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-11 23:43:54,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:43:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-11 23:43:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-11 23:43:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:43:54,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:43:54,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:43:54,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:43:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure append [2023-11-11 23:43:54,623 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2023-11-11 23:43:54,741 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:43:54,743 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:43:55,073 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:43:55,234 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:43:55,234 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-11 23:43:55,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:43:55 BoogieIcfgContainer [2023-11-11 23:43:55,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:43:55,238 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:43:55,238 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:43:55,255 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:43:55,255 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:43:55" (1/1) ... [2023-11-11 23:43:55,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:43:55,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:55,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2023-11-11 23:43:55,341 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2023-11-11 23:43:55,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:43:55,350 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:55,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:55,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:55,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:55,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2023-11-11 23:43:55,580 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-11-11 23:43:55,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-11 23:43:55,580 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:55,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:55,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:56,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:56,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2023-11-11 23:43:56,286 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-11-11 23:43:56,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-11 23:43:56,287 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:56,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:43:56,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:56,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2023-11-11 23:43:56,809 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2023-11-11 23:43:56,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-11 23:43:56,811 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:56,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:57,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:43:57,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:57,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2023-11-11 23:43:57,165 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2023-11-11 23:43:57,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-11 23:43:57,166 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:57,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:57,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:43:57,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:57,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2023-11-11 23:43:57,525 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2023-11-11 23:43:57,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-11 23:43:57,528 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:57,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:57,920 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:43:58,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:58,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 32 states and 40 transitions. [2023-11-11 23:43:58,133 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2023-11-11 23:43:58,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-11 23:43:58,136 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:58,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-11 23:43:58,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:58,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 31 states and 39 transitions. [2023-11-11 23:43:58,641 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2023-11-11 23:43:58,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-11 23:43:58,643 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:58,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:58,936 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-11 23:43:58,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:59,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 33 states and 42 transitions. [2023-11-11 23:43:59,001 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2023-11-11 23:43:59,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-11 23:43:59,002 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:59,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:59,416 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-11 23:43:59,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:59,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 28 states and 34 transitions. [2023-11-11 23:43:59,484 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-11-11 23:43:59,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-11 23:43:59,486 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:59,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:59,718 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-11 23:43:59,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:59,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 35 transitions. [2023-11-11 23:43:59,739 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-11-11 23:43:59,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-11 23:43:59,741 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:59,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:44:00,069 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-11 23:44:00,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:44:00,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 34 states and 41 transitions. [2023-11-11 23:44:00,364 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2023-11-11 23:44:00,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-11 23:44:00,365 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:44:00,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:44:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:44:00,808 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-11 23:44:01,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:44:01,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 39 states and 47 transitions. [2023-11-11 23:44:01,186 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2023-11-11 23:44:01,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-11 23:44:01,186 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:44:01,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:44:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:44:01,742 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-11 23:44:02,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:44:02,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 44 states and 52 transitions. [2023-11-11 23:44:02,066 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2023-11-11 23:44:02,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-11 23:44:02,067 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:44:02,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:44:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:44:02,541 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-11 23:44:02,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:44:02,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 46 states and 55 transitions. [2023-11-11 23:44:02,693 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2023-11-11 23:44:02,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-11 23:44:02,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:44:02,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:44:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:44:03,164 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-11-11 23:44:03,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:44:03,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 45 states and 54 transitions. [2023-11-11 23:44:03,366 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2023-11-11 23:44:03,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-11 23:44:03,367 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:44:03,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:44:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:44:03,883 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-11 23:44:03,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:44:03,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 42 states and 49 transitions. [2023-11-11 23:44:04,000 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2023-11-11 23:44:04,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:44:04,004 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 17 iterations. [2023-11-11 23:44:04,025 INFO L753 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-11 23:44:04,097 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-11 23:44:04,102 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-11 23:44:04,103 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-11 23:44:04,107 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2023-11-11 23:44:04,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:44:04 ImpRootNode [2023-11-11 23:44:04,114 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:44:04,114 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:44:04,114 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:44:04,115 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:44:04,117 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:43:55" (3/4) ... [2023-11-11 23:44:04,121 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:44:04,125 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure append [2023-11-11 23:44:04,138 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-11 23:44:04,139 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-11 23:44:04,139 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-11 23:44:04,139 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:44:04,275 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:44:04,276 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:44:04,276 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:44:04,277 INFO L158 Benchmark]: Toolchain (without parser) took 10392.45ms. Allocated memory was 134.2MB in the beginning and 289.4MB in the end (delta: 155.2MB). Free memory was 90.6MB in the beginning and 178.3MB in the end (delta: -87.7MB). Peak memory consumption was 67.9MB. Max. memory is 16.1GB. [2023-11-11 23:44:04,278 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 134.2MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:44:04,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 542.45ms. Allocated memory is still 134.2MB. Free memory was 90.2MB in the beginning and 73.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-11 23:44:04,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.16ms. Allocated memory is still 134.2MB. Free memory was 73.0MB in the beginning and 70.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:44:04,279 INFO L158 Benchmark]: Boogie Preprocessor took 33.63ms. Allocated memory is still 134.2MB. Free memory was 70.9MB in the beginning and 69.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:44:04,279 INFO L158 Benchmark]: RCFGBuilder took 696.92ms. Allocated memory is still 134.2MB. Free memory was 69.2MB in the beginning and 85.8MB in the end (delta: -16.5MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2023-11-11 23:44:04,280 INFO L158 Benchmark]: CodeCheck took 8875.81ms. Allocated memory was 134.2MB in the beginning and 289.4MB in the end (delta: 155.2MB). Free memory was 85.8MB in the beginning and 183.5MB in the end (delta: -97.7MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2023-11-11 23:44:04,280 INFO L158 Benchmark]: Witness Printer took 162.04ms. Allocated memory is still 289.4MB. Free memory was 183.5MB in the beginning and 178.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:44:04,282 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 2 procedures, 22 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 8.7s, OverallIterations: 17, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 863 SdHoareTripleChecker+Valid, 8.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 229 mSDsluCounter, 348 SdHoareTripleChecker+Invalid, 8.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 508 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1469 IncrementalHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 508 mSolverCounterUnsat, 348 mSDtfsCounter, 1469 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2785 GetRequests, 2666 SyntacticMatches, 45 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2737 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 453 NumberOfCodeBlocks, 453 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 437 ConstructedInterpolants, 0 QuantifiedInterpolants, 659 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 369/449 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 - PositiveResult [Line: 579]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 579]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 579]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((c == 0) || (1 <= c)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 134.2MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 542.45ms. Allocated memory is still 134.2MB. Free memory was 90.2MB in the beginning and 73.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.16ms. Allocated memory is still 134.2MB. Free memory was 73.0MB in the beginning and 70.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.63ms. Allocated memory is still 134.2MB. Free memory was 70.9MB in the beginning and 69.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 696.92ms. Allocated memory is still 134.2MB. Free memory was 69.2MB in the beginning and 85.8MB in the end (delta: -16.5MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * CodeCheck took 8875.81ms. Allocated memory was 134.2MB in the beginning and 289.4MB in the end (delta: 155.2MB). Free memory was 85.8MB in the beginning and 183.5MB in the end (delta: -97.7MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Witness Printer took 162.04ms. Allocated memory is still 289.4MB. Free memory was 183.5MB in the beginning and 178.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-11 23:44:04,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6382af8b-3f87-417e-9182-4429d5dea4f9/bin/ukojak-verify-0OAaufAVZV/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: TRUE