./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b --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 002ffbd09e057f56028aff15fe1fea8f5a73210903f4d60a4a822560ee8c3510 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:37:51,470 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:37:51,523 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 01:37:51,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:37:51,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:37:51,548 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:37:51,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:37:51,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:37:51,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:37:51,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:37:51,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:37:51,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:37:51,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:37:51,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:37:51,550 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:37:51,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:37:51,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:37:51,550 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:37:51,550 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:37:51,551 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:37:51,551 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:37:51,551 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:37:51,551 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:37:51,551 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:37:51,551 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:37:51,551 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:37:51,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:37:51,552 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:37:51,552 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:37:51,552 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:37:51,552 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:37:51,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:37:51,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b 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 -> 002ffbd09e057f56028aff15fe1fea8f5a73210903f4d60a4a822560ee8c3510 [2024-12-06 01:37:51,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:37:51,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:37:51,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:37:51,779 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:37:51,779 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:37:51,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2024-12-06 01:37:54,385 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/data/35e856db5/7c94206ee3984fb99acd7a3624755c49/FLAGccca438ad [2024-12-06 01:37:54,572 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:37:54,572 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2024-12-06 01:37:54,578 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/data/35e856db5/7c94206ee3984fb99acd7a3624755c49/FLAGccca438ad [2024-12-06 01:37:54,967 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/data/35e856db5/7c94206ee3984fb99acd7a3624755c49 [2024-12-06 01:37:54,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:37:54,969 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:37:54,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:37:54,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:37:54,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:37:54,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:37:54" (1/1) ... [2024-12-06 01:37:54,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5cc44e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:37:54, skipping insertion in model container [2024-12-06 01:37:54,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:37:54" (1/1) ... [2024-12-06 01:37:54,983 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:37:55,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:37:55,079 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:37:55,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:37:55,100 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:37:55,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:37:55 WrapperNode [2024-12-06 01:37:55,100 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:37:55,101 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:37:55,101 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:37:55,101 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:37:55,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:37:55" (1/1) ... [2024-12-06 01:37:55,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:37:55" (1/1) ... [2024-12-06 01:37:55,119 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-12-06 01:37:55,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:37:55,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:37:55,120 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:37:55,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:37:55,125 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:37:55" (1/1) ... [2024-12-06 01:37:55,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:37:55" (1/1) ... [2024-12-06 01:37:55,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:37:55" (1/1) ... [2024-12-06 01:37:55,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:37:55" (1/1) ... [2024-12-06 01:37:55,127 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:37:55" (1/1) ... [2024-12-06 01:37:55,128 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:37:55" (1/1) ... [2024-12-06 01:37:55,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:37:55" (1/1) ... [2024-12-06 01:37:55,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:37:55" (1/1) ... [2024-12-06 01:37:55,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:37:55" (1/1) ... [2024-12-06 01:37:55,133 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:37:55,133 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:37:55,134 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:37:55,134 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:37:55,134 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:37:55" (1/1) ... [2024-12-06 01:37:55,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:37:55,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:37:55,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:37:55,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:37:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:37:55,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:37:55,219 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:37:55,220 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:37:55,291 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-06 01:37:55,291 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:37:55,310 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:37:55,310 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 01:37:55,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:37:55 BoogieIcfgContainer [2024-12-06 01:37:55,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:37:55,311 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:37:55,311 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:37:55,322 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:37:55,322 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:37:55" (1/1) ... [2024-12-06 01:37:55,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:37:55,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:37:55,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2024-12-06 01:37:55,381 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2024-12-06 01:37:55,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 01:37:55,384 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:37:55,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:37:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:37:55,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:37:55,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:37:55,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2024-12-06 01:37:55,571 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2024-12-06 01:37:55,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 01:37:55,571 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:37:55,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:37:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:37:55,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:37:55,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:37:55,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2024-12-06 01:37:55,609 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2024-12-06 01:37:55,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 01:37:55,609 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:37:55,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:37:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:37:55,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:37:55,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:37:55,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2024-12-06 01:37:55,741 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2024-12-06 01:37:55,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 01:37:55,742 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:37:55,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:37:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:37:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:37:55,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:37:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2024-12-06 01:37:55,800 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2024-12-06 01:37:55,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:37:55,801 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:37:55,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:37:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:37:55,842 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:37:55,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:37:55,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2024-12-06 01:37:55,874 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2024-12-06 01:37:55,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:37:55,874 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:37:55,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:37:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:37:55,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:37:56,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:37:56,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2024-12-06 01:37:56,098 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2024-12-06 01:37:56,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:37:56,098 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:37:56,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:37:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:37:56,133 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:37:56,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:37:56,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-12-06 01:37:56,162 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-12-06 01:37:56,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:37:56,162 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:37:56,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:37:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:37:56,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 01:37:56,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:37:56,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 01:37:56,267 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 01:37:56,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:37:56,267 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:37:56,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:37:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:37:56,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:37:56,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:37:56,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2024-12-06 01:37:56,424 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-12-06 01:37:56,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:37:56,425 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:37:56,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:37:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:37:56,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 01:37:56,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:37:56,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2024-12-06 01:37:56,460 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2024-12-06 01:37:56,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 01:37:56,461 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2024-12-06 01:37:56,468 INFO L726 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2024-12-06 01:37:56,628 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2024-12-06 01:37:56,628 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 01:37:56,628 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2024-12-06 01:37:56,628 INFO L77 FloydHoareUtils]: At program point L15-1(lines 14 20) the Hoare annotation is: (<= 0 |ULTIMATE.start_main_~x~0#1|) [2024-12-06 01:37:56,628 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 01:37:56,628 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2024-12-06 01:37:56,629 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2024-12-06 01:37:56,629 INFO L77 FloydHoareUtils]: At program point L18(line 18) the Hoare annotation is: (or (and (not (= |ULTIMATE.start_main_~z~0#1| 0)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 0)) (and (< 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 39))) [2024-12-06 01:37:56,629 INFO L77 FloydHoareUtils]: At program point L18-1(line 18) the Hoare annotation is: (or (and (not (= |ULTIMATE.start_main_~z~0#1| 0)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 0)) (and (< 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 39))) [2024-12-06 01:37:56,629 INFO L77 FloydHoareUtils]: At program point L16(line 16) the Hoare annotation is: (or (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~z~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 0)) (and (< 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 39))) [2024-12-06 01:37:56,629 INFO L77 FloydHoareUtils]: At program point L16-1(line 16) the Hoare annotation is: (or (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~z~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 0)) (and (< 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 39))) [2024-12-06 01:37:56,629 INFO L77 FloydHoareUtils]: At program point L14-1(lines 14 20) the Hoare annotation is: (or (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 0)) (and (< 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 39))) [2024-12-06 01:37:56,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:37:56 ImpRootNode [2024-12-06 01:37:56,640 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:37:56,640 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:37:56,640 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:37:56,640 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:37:56,641 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:37:55" (3/4) ... [2024-12-06 01:37:56,643 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 01:37:56,648 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-06 01:37:56,648 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-06 01:37:56,648 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-06 01:37:56,708 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 01:37:56,708 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 01:37:56,708 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:37:56,709 INFO L158 Benchmark]: Toolchain (without parser) took 1739.41ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 84.0MB in the end (delta: 33.5MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2024-12-06 01:37:56,709 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:37:56,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 130.45ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 107.3MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:37:56,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.85ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 106.4MB in the end (delta: 982.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:37:56,710 INFO L158 Benchmark]: Boogie Preprocessor took 12.43ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.8MB in the end (delta: 582.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:37:56,710 INFO L158 Benchmark]: RCFGBuilder took 177.46ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 96.1MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:37:56,711 INFO L158 Benchmark]: CodeCheck took 1328.26ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 88.1MB in the end (delta: 7.8MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-12-06 01:37:56,711 INFO L158 Benchmark]: Witness Printer took 68.14ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 84.0MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:37:56,713 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 243 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 213 mSDsluCounter, 159 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 119 mSDsCounter, 170 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 646 IncrementalHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 170 mSolverCounterUnsat, 40 mSDtfsCounter, 646 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 578 GetRequests, 525 SyntacticMatches, 19 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 147 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 18/18 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, ConComCheckerStatistics: No data available - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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: 14]: Loop Invariant Derived loop invariant: (0 <= x) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 130.45ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 107.3MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.85ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 106.4MB in the end (delta: 982.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.43ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.8MB in the end (delta: 582.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 177.46ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 96.1MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1328.26ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 88.1MB in the end (delta: 7.8MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Witness Printer took 68.14ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 84.0MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 01:37:56,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a829f0-f808-4bb9-8e9f-cbb7327cb091/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE