./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fa3b5fd31b0165adcc8931bdb36ef94241c9d1c36f2e335867de97d47f976fb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:19:54,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:19:54,729 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-24 18:19:54,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 18:19:54,736 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-24 18:19:54,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:19:54,770 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:19:54,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:19:54,772 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:19:54,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:19:54,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:19:54,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:19:54,774 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 18:19:54,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 18:19:54,774 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 18:19:54,774 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:19:54,774 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:19:54,774 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:19:54,774 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:19:54,775 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 18:19:54,775 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 18:19:54,775 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 18:19:54,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:19:54,776 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:19:54,776 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:19:54,776 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:19:54,776 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:19:54,776 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:19:54,776 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:19:54,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:19:54,777 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:19:54,777 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:19:54,777 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:19:54,777 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-24 18:19:54,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 18:19:54,778 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_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fa3b5fd31b0165adcc8931bdb36ef94241c9d1c36f2e335867de97d47f976fb [2024-11-24 18:19:55,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:19:55,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:19:55,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:19:55,136 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:19:55,138 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:19:55,139 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i [2024-11-24 18:19:58,345 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/data/09e6c6578/fd667cb0ea624ade894721771581f5ab/FLAG4d45c6d29 [2024-11-24 18:19:58,612 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:19:58,613 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/sv-benchmarks/c/ldv-regression/test_while_int.c_1.i [2024-11-24 18:19:58,620 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/data/09e6c6578/fd667cb0ea624ade894721771581f5ab/FLAG4d45c6d29 [2024-11-24 18:19:58,642 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/data/09e6c6578/fd667cb0ea624ade894721771581f5ab [2024-11-24 18:19:58,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:19:58,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:19:58,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:19:58,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:19:58,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:19:58,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:19:58" (1/1) ... [2024-11-24 18:19:58,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76eee25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:19:58, skipping insertion in model container [2024-11-24 18:19:58,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:19:58" (1/1) ... [2024-11-24 18:19:58,668 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:19:58,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:19:58,839 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:19:58,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:19:58,865 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:19:58,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:19:58 WrapperNode [2024-11-24 18:19:58,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:19:58,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:19:58,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:19:58,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:19:58,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:19:58" (1/1) ... [2024-11-24 18:19:58,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:19:58" (1/1) ... [2024-11-24 18:19:58,894 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 26 [2024-11-24 18:19:58,895 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:19:58,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:19:58,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:19:58,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:19:58,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:19:58" (1/1) ... [2024-11-24 18:19:58,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:19:58" (1/1) ... [2024-11-24 18:19:58,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:19:58" (1/1) ... [2024-11-24 18:19:58,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:19:58" (1/1) ... [2024-11-24 18:19:58,904 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:19:58" (1/1) ... [2024-11-24 18:19:58,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:19:58" (1/1) ... [2024-11-24 18:19:58,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:19:58" (1/1) ... [2024-11-24 18:19:58,908 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:19:58" (1/1) ... [2024-11-24 18:19:58,909 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:19:58" (1/1) ... [2024-11-24 18:19:58,910 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:19:58,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:19:58,911 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:19:58,911 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:19:58,912 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:19:58" (1/1) ... [2024-11-24 18:19:58,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:19:58,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:19:58,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:19:58,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:19:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 18:19:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:19:58,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:19:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 18:19:59,048 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:19:59,050 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 18:19:59,138 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-24 18:19:59,139 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 18:19:59,171 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 18:19:59,172 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 18:19:59,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:19:59 BoogieIcfgContainer [2024-11-24 18:19:59,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 18:19:59,173 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-24 18:19:59,173 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-24 18:19:59,185 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-24 18:19:59,185 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:19:59" (1/1) ... [2024-11-24 18:19:59,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 18:19:59,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:19:59,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2024-11-24 18:19:59,247 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2024-11-24 18:19:59,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-24 18:19:59,249 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:19:59,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:19:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:19:59,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:19:59,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:19:59,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2024-11-24 18:19:59,599 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2024-11-24 18:19:59,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-24 18:19:59,600 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:19:59,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:19:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:19:59,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:19:59,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:19:59,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2024-11-24 18:19:59,690 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2024-11-24 18:19:59,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-24 18:19:59,690 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:19:59,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:19:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:19:59,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:20:00,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:20:00,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-11-24 18:20:00,022 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-11-24 18:20:00,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-24 18:20:00,026 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:20:00,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:20:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:20:00,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:20:00,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:20:00,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-24 18:20:00,429 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-24 18:20:00,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-24 18:20:00,429 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:20:00,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:20:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:20:00,632 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 18:20:00,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:20:00,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-11-24 18:20:00,946 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-24 18:20:00,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-24 18:20:00,946 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:20:00,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:20:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:20:01,077 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:20:01,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:20:01,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2024-11-24 18:20:01,260 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2024-11-24 18:20:01,260 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 18:20:01,260 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2024-11-24 18:20:01,269 INFO L726 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-24 18:20:01,565 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2024-11-24 18:20:01,565 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2024-11-24 18:20:01,565 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-24 18:20:01,565 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2024-11-24 18:20:01,565 INFO L77 FloydHoareUtils]: At program point L16(line 16) the Hoare annotation is: (or (and (<= 1 |ULTIMATE.start_main_#t~post4#1|) (<= |ULTIMATE.start_main_#t~post4#1| 1)) (and (< |ULTIMATE.start_main_#t~post4#1| 1) (<= 0 (+ |ULTIMATE.start_main_#t~post4#1| 2147483648))) (and (< 1 |ULTIMATE.start_main_#t~post4#1|) (<= |ULTIMATE.start_main_#t~post4#1| 2))) [2024-11-24 18:20:01,566 INFO L77 FloydHoareUtils]: At program point L18-2(lines 15 22) the Hoare annotation is: (or (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)) (and (< |ULTIMATE.start_main_~i~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648))) (and (< 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2))) [2024-11-24 18:20:01,566 INFO L77 FloydHoareUtils]: At program point L16-1(line 16) the Hoare annotation is: (or (and (<= 0 (+ 2147483649 |ULTIMATE.start_main_#t~post4#1|)) (<= |ULTIMATE.start_main_#t~post4#1| 1)) (and (< 1 |ULTIMATE.start_main_#t~post4#1|) (<= |ULTIMATE.start_main_#t~post4#1| 2))) [2024-11-24 18:20:01,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 06:20:01 ImpRootNode [2024-11-24 18:20:01,578 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-24 18:20:01,578 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 18:20:01,578 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 18:20:01,579 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 18:20:01,579 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:19:59" (3/4) ... [2024-11-24 18:20:01,581 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 18:20:01,588 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-24 18:20:01,588 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-24 18:20:01,588 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 18:20:01,588 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 18:20:01,692 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-24 18:20:01,692 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-24 18:20:01,692 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 18:20:01,693 INFO L158 Benchmark]: Toolchain (without parser) took 3047.60ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 89.1MB in the end (delta: 4.1MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2024-11-24 18:20:01,694 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:20:01,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.22ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.6MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:20:01,694 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.14ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 81.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:20:01,694 INFO L158 Benchmark]: Boogie Preprocessor took 14.41ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.9MB in the end (delta: 634.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:20:01,695 INFO L158 Benchmark]: RCFGBuilder took 261.76ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 71.3MB in the end (delta: 9.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 18:20:01,695 INFO L158 Benchmark]: CodeCheck took 2404.60ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 35.7MB in the end (delta: 35.6MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2024-11-24 18:20:01,696 INFO L158 Benchmark]: Witness Printer took 114.03ms. Allocated memory is still 117.4MB. Free memory was 35.7MB in the beginning and 89.1MB in the end (delta: -53.4MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-11-24 18:20:01,698 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, 7 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 234 IncrementalHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 0 mSDtfsCounter, 234 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 290 GetRequests, 245 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 95 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 7/21 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: ((((1 <= i) && (i <= 1)) || ((i < 1) && (0 <= (i + 2147483648)))) || ((1 < i) && (i <= 2))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.22ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.6MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.14ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 81.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.41ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.9MB in the end (delta: 634.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 261.76ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 71.3MB in the end (delta: 9.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2404.60ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 35.7MB in the end (delta: 35.6MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Witness Printer took 114.03ms. Allocated memory is still 117.4MB. Free memory was 35.7MB in the beginning and 89.1MB in the end (delta: -53.4MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-24 18:20:01,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da0f507a-4749-44f2-a5a3-b1507af6f239/bin/ukojak-verify-ENZ3QT5qd3/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