./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi --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 64bit --witnessprinter.graph.data.programhash 9e9fee7822ea181968af00cc75a840ddcb8cdf140cdf423bd35cdb5d3f0e2f5d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:03:49,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:03:49,353 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 23:03:49,367 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:03:49,368 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:03:49,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:03:49,414 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:03:49,415 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:03:49,416 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:03:49,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:03:49,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:03:49,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:03:49,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:03:49,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:03:49,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:03:49,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:03:49,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:03:49,430 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:03:49,430 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:03:49,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:03:49,432 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:03:49,433 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:03:49,433 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:03:49,434 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:03:49,434 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:03:49,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:03:49,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:03:49,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:03:49,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:03:49,436 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:03:49,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:03:49,438 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:03:49,438 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_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e9fee7822ea181968af00cc75a840ddcb8cdf140cdf423bd35cdb5d3f0e2f5d [2023-11-24 23:03:49,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:03:49,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:03:49,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:03:49,729 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:03:49,730 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:03:49,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-alloca-1.i [2023-11-24 23:03:53,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:03:53,388 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:03:53,389 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-alloca-1.i [2023-11-24 23:03:53,405 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/data/a0761cf59/b2871ddc20b147a8bf96926435a4e266/FLAGf459a5616 [2023-11-24 23:03:53,420 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/data/a0761cf59/b2871ddc20b147a8bf96926435a4e266 [2023-11-24 23:03:53,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:03:53,425 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:03:53,426 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:03:53,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:03:53,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:03:53,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:03:53" (1/1) ... [2023-11-24 23:03:53,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f24c168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:53, skipping insertion in model container [2023-11-24 23:03:53,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:03:53" (1/1) ... [2023-11-24 23:03:53,497 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:03:53,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:03:53,873 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:03:53,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:03:53,976 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:03:53,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:53 WrapperNode [2023-11-24 23:03:53,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:03:53,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:03:53,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:03:53,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:03:53,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:53" (1/1) ... [2023-11-24 23:03:54,010 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:53" (1/1) ... [2023-11-24 23:03:54,045 INFO L138 Inliner]: procedures = 111, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2023-11-24 23:03:54,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:03:54,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:03:54,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:03:54,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:03:54,057 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:53" (1/1) ... [2023-11-24 23:03:54,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:53" (1/1) ... [2023-11-24 23:03:54,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:53" (1/1) ... [2023-11-24 23:03:54,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:53" (1/1) ... [2023-11-24 23:03:54,081 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:53" (1/1) ... [2023-11-24 23:03:54,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:53" (1/1) ... [2023-11-24 23:03:54,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:53" (1/1) ... [2023-11-24 23:03:54,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:53" (1/1) ... [2023-11-24 23:03:54,101 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:03:54,102 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:03:54,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:03:54,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:03:54,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:53" (1/1) ... [2023-11-24 23:03:54,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:03:54,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:03:54,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:03:54,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:03:54,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:03:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:03:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:03:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:03:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:03:54,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:03:54,342 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:03:54,345 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:03:54,530 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:03:54,613 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:03:54,614 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:03:54,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:03:54 BoogieIcfgContainer [2023-11-24 23:03:54,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:03:54,617 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:03:54,617 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:03:54,629 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:03:54,629 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:03:54" (1/1) ... [2023-11-24 23:03:54,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:03:54,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:54,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2023-11-24 23:03:54,733 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-11-24 23:03:54,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 23:03:54,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:03:54,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:03:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:03:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:03:55,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:55,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2023-11-24 23:03:55,056 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-11-24 23:03:55,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 23:03:55,057 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:03:55,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:03:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:03:55,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:03:55,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-11-24 23:03:55,324 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-11-24 23:03:55,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:03:55,324 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:03:55,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:03:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:03:55,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:03:55,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:55,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-24 23:03:55,705 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-24 23:03:55,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:03:55,705 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:03:55,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:03:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:03:55,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:03:56,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:56,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-11-24 23:03:56,172 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-11-24 23:03:56,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:03:56,173 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:03:56,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:03:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:03:56,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:03:56,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:56,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2023-11-24 23:03:56,849 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2023-11-24 23:03:56,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:03:56,849 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:03:56,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:03:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:03:56,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:03:57,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:57,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2023-11-24 23:03:57,569 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2023-11-24 23:03:57,569 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:03:57,569 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-11-24 23:03:57,578 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-24 23:03:57,634 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:03:57,639 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:03:57,639 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:03:57,639 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:03:57,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:03:57 ImpRootNode [2023-11-24 23:03:57,640 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:03:57,640 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:03:57,641 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:03:57,641 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:03:57,641 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:03:54" (3/4) ... [2023-11-24 23:03:57,648 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:03:57,658 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-24 23:03:57,659 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 23:03:57,659 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-24 23:03:57,659 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:03:57,773 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:03:57,774 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 23:03:57,774 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:03:57,778 INFO L158 Benchmark]: Toolchain (without parser) took 4350.48ms. Allocated memory was 155.2MB in the beginning and 213.9MB in the end (delta: 58.7MB). Free memory was 106.8MB in the beginning and 120.3MB in the end (delta: -13.6MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2023-11-24 23:03:57,778 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 155.2MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:03:57,779 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.13ms. Allocated memory is still 155.2MB. Free memory was 106.6MB in the beginning and 90.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:03:57,779 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.13ms. Allocated memory is still 155.2MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:03:57,779 INFO L158 Benchmark]: Boogie Preprocessor took 55.05ms. Allocated memory is still 155.2MB. Free memory was 88.2MB in the beginning and 86.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:03:57,780 INFO L158 Benchmark]: RCFGBuilder took 514.15ms. Allocated memory is still 155.2MB. Free memory was 86.9MB in the beginning and 71.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:03:57,781 INFO L158 Benchmark]: CodeCheck took 3022.97ms. Allocated memory was 155.2MB in the beginning and 213.9MB in the end (delta: 58.7MB). Free memory was 71.9MB in the beginning and 124.4MB in the end (delta: -52.6MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2023-11-24 23:03:57,781 INFO L158 Benchmark]: Witness Printer took 133.99ms. Allocated memory is still 213.9MB. Free memory was 124.4MB in the beginning and 120.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:03:57,786 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, 21 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 99 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 345 IncrementalHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 0 mSDtfsCounter, 345 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1898 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 568]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 568]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 155.2MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 551.13ms. Allocated memory is still 155.2MB. Free memory was 106.6MB in the beginning and 90.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.13ms. Allocated memory is still 155.2MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.05ms. Allocated memory is still 155.2MB. Free memory was 88.2MB in the beginning and 86.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 514.15ms. Allocated memory is still 155.2MB. Free memory was 86.9MB in the beginning and 71.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 3022.97ms. Allocated memory was 155.2MB in the beginning and 213.9MB in the end (delta: 58.7MB). Free memory was 71.9MB in the beginning and 124.4MB in the end (delta: -52.6MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Witness Printer took 133.99ms. Allocated memory is still 213.9MB. Free memory was 124.4MB in the beginning and 120.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 23:03:57,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_810403d2-0e86-47ca-bfe8-242b0ba3f460/bin/ukojak-verify-afCqCEvfdi/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