./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/cstrcat_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/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_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/cstrcat_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL --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 f7e74a0e03b60f29f7d157510f3d5b3a3ebad4fa8c21c80c2e088ad68134a4dc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:11:01,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:11:01,211 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:11:01,216 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:11:01,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:11:01,262 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:11:01,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:11:01,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:11:01,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:11:01,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:11:01,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:11:01,267 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:11:01,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:11:01,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:11:01,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:11:01,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:11:01,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:11:01,270 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:11:01,270 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:11:01,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:11:01,271 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:11:01,272 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:11:01,272 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:11:01,273 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:11:01,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:11:01,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:11:01,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:11:01,274 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:11:01,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:11:01,275 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:11:01,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:11:01,276 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:11:01,276 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_398b4db7-85d2-4e26-a418-7b1f9048abf2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7e74a0e03b60f29f7d157510f3d5b3a3ebad4fa8c21c80c2e088ad68134a4dc [2023-11-19 03:11:01,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:11:01,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:11:01,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:11:01,679 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:11:01,679 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:11:01,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/termination-15/cstrcat_reverse_alloca.i [2023-11-19 03:11:04,743 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:11:05,091 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:11:05,092 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/sv-benchmarks/c/termination-15/cstrcat_reverse_alloca.i [2023-11-19 03:11:05,107 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL/data/6277ba585/58649784211143e587394c03cd2cfa19/FLAGe5b56f83b [2023-11-19 03:11:05,126 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL/data/6277ba585/58649784211143e587394c03cd2cfa19 [2023-11-19 03:11:05,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:11:05,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:11:05,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:11:05,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:11:05,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:11:05,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:11:05" (1/1) ... [2023-11-19 03:11:05,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2277d9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:05, skipping insertion in model container [2023-11-19 03:11:05,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:11:05" (1/1) ... [2023-11-19 03:11:05,202 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:11:05,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:11:05,566 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:11:05,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:11:05,644 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:11:05,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:05 WrapperNode [2023-11-19 03:11:05,644 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:11:05,645 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:11:05,646 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:11:05,646 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:11:05,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:05" (1/1) ... [2023-11-19 03:11:05,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:05" (1/1) ... [2023-11-19 03:11:05,689 INFO L138 Inliner]: procedures = 152, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2023-11-19 03:11:05,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:11:05,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:11:05,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:11:05,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:11:05,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:05" (1/1) ... [2023-11-19 03:11:05,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:05" (1/1) ... [2023-11-19 03:11:05,701 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:05" (1/1) ... [2023-11-19 03:11:05,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:05" (1/1) ... [2023-11-19 03:11:05,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:05" (1/1) ... [2023-11-19 03:11:05,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:05" (1/1) ... [2023-11-19 03:11:05,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:05" (1/1) ... [2023-11-19 03:11:05,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:05" (1/1) ... [2023-11-19 03:11:05,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:11:05,723 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:11:05,723 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:11:05,723 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:11:05,724 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:05" (1/1) ... [2023-11-19 03:11:05,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:11:05,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:11:05,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:11:05,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:11:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:11:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:11:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:11:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:11:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:11:05,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:11:05,984 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:11:05,993 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:11:06,217 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:11:06,273 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:11:06,274 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:11:06,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:06 BoogieIcfgContainer [2023-11-19 03:11:06,278 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:11:06,279 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:11:06,279 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:11:06,290 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:11:06,290 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:06" (1/1) ... [2023-11-19 03:11:06,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:11:06,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:06,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2023-11-19 03:11:06,353 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-11-19 03:11:06,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-19 03:11:06,355 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:06,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:06,764 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 03:11:06,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:06,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2023-11-19 03:11:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-11-19 03:11:06,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:11:06,804 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:06,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:06,966 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 03:11:07,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:07,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2023-11-19 03:11:07,041 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-11-19 03:11:07,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:11:07,042 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:07,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:07,097 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 03:11:07,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:07,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2023-11-19 03:11:07,159 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-11-19 03:11:07,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:11:07,160 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:07,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:07,208 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 03:11:07,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:07,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2023-11-19 03:11:07,274 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-11-19 03:11:07,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:11:07,274 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:07,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:07,362 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 03:11:07,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:07,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2023-11-19 03:11:07,760 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-11-19 03:11:07,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:11:07,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:07,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:07,878 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 03:11:08,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:08,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-11-19 03:11:08,372 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-11-19 03:11:08,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:11:08,372 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:08,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:08,447 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 03:11:09,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:09,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-19 03:11:09,167 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-19 03:11:09,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:11:09,168 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:09,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:09,274 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 03:11:10,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:10,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-11-19 03:11:10,232 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-11-19 03:11:10,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:11:10,232 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-11-19 03:11:10,241 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-19 03:11:10,308 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:10,312 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:10,312 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:10,312 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:10,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:11:10 ImpRootNode [2023-11-19 03:11:10,312 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:11:10,313 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:11:10,313 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:11:10,313 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:11:10,314 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:06" (3/4) ... [2023-11-19 03:11:10,316 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:11:10,324 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 03:11:10,324 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 03:11:10,324 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 03:11:10,325 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:11:10,420 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:11:10,421 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:11:10,421 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:11:10,422 INFO L158 Benchmark]: Toolchain (without parser) took 5288.38ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 147.3MB in the beginning and 137.2MB in the end (delta: 10.1MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. [2023-11-19 03:11:10,422 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 123.7MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:11:10,423 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.90ms. Allocated memory is still 178.3MB. Free memory was 147.3MB in the beginning and 129.3MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 03:11:10,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.79ms. Allocated memory is still 178.3MB. Free memory was 129.3MB in the beginning and 127.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:11:10,424 INFO L158 Benchmark]: Boogie Preprocessor took 32.28ms. Allocated memory is still 178.3MB. Free memory was 127.2MB in the beginning and 125.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:11:10,424 INFO L158 Benchmark]: RCFGBuilder took 555.55ms. Allocated memory is still 178.3MB. Free memory was 125.6MB in the beginning and 133.4MB in the end (delta: -7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 03:11:10,424 INFO L158 Benchmark]: CodeCheck took 4033.30ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 133.4MB in the beginning and 142.3MB in the end (delta: -8.8MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-11-19 03:11:10,425 INFO L158 Benchmark]: Witness Printer took 108.37ms. Allocated memory is still 213.9MB. Free memory was 142.3MB in the beginning and 137.2MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:11:10,428 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, 25 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 197 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 197 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 92 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 593 IncrementalHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 92 mSolverCounterUnsat, 0 mSDtfsCounter, 593 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 398 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5784 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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: 386]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 386]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 390]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 390]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 391]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 391]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 392]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 392]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 367]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 369]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 369]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 373]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 123.7MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 508.90ms. Allocated memory is still 178.3MB. Free memory was 147.3MB in the beginning and 129.3MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.79ms. Allocated memory is still 178.3MB. Free memory was 129.3MB in the beginning and 127.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.28ms. Allocated memory is still 178.3MB. Free memory was 127.2MB in the beginning and 125.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.55ms. Allocated memory is still 178.3MB. Free memory was 125.6MB in the beginning and 133.4MB in the end (delta: -7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * CodeCheck took 4033.30ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 133.4MB in the beginning and 142.3MB in the end (delta: -8.8MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Witness Printer took 108.37ms. Allocated memory is still 213.9MB. Free memory was 142.3MB in the beginning and 137.2MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:11:10,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398b4db7-85d2-4e26-a418-7b1f9048abf2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE