./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c --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_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/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_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/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_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/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 198a885d453136e0f485e10bae010eb2ed68236b2d57919bf162df9bdad27ee6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:31:53,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:31:53,777 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-25 02:31:53,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:31:53,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:31:53,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:31:53,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:31:53,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:31:53,820 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:31:53,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:31:53,820 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:31:53,821 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:31:53,821 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 02:31:53,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:31:53,821 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 02:31:53,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:31:53,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:31:53,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:31:53,823 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:31:53,823 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:31:53,823 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:31:53,823 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 02:31:53,823 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:31:53,823 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:31:53,823 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:31:53,823 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:31:53,823 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:31:53,824 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:31:53,824 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:31:53,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:31:53,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:31:53,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:31:53,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:31:53,824 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:31:53,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:31:53,824 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_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/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 -> 198a885d453136e0f485e10bae010eb2ed68236b2d57919bf162df9bdad27ee6 [2024-11-25 02:31:54,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:31:54,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:31:54,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:31:54,157 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:31:54,157 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:31:54,159 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c [2024-11-25 02:31:57,245 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/bin/ukojak-verify-ENZ3QT5qd3/data/60b7f4997/ba4ad94bf2fd4ffeb1e4ad20a0b64ceb/FLAG588bbd6ec [2024-11-25 02:31:57,548 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:31:57,550 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c [2024-11-25 02:31:57,563 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/bin/ukojak-verify-ENZ3QT5qd3/data/60b7f4997/ba4ad94bf2fd4ffeb1e4ad20a0b64ceb/FLAG588bbd6ec [2024-11-25 02:31:57,579 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/bin/ukojak-verify-ENZ3QT5qd3/data/60b7f4997/ba4ad94bf2fd4ffeb1e4ad20a0b64ceb [2024-11-25 02:31:57,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:31:57,584 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:31:57,585 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:31:57,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:31:57,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:31:57,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:31:57" (1/1) ... [2024-11-25 02:31:57,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b2513f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:31:57, skipping insertion in model container [2024-11-25 02:31:57,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:31:57" (1/1) ... [2024-11-25 02:31:57,609 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:31:57,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:31:57,786 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:31:57,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:31:57,846 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:31:57,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:31:57 WrapperNode [2024-11-25 02:31:57,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:31:57,849 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:31:57,849 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:31:57,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:31:57,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:31:57" (1/1) ... [2024-11-25 02:31:57,870 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:31:57" (1/1) ... [2024-11-25 02:31:57,900 INFO L138 Inliner]: procedures = 18, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 104 [2024-11-25 02:31:57,901 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:31:57,902 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:31:57,902 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:31:57,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:31:57,910 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:31:57" (1/1) ... [2024-11-25 02:31:57,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:31:57" (1/1) ... [2024-11-25 02:31:57,914 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:31:57" (1/1) ... [2024-11-25 02:31:57,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:31:57" (1/1) ... [2024-11-25 02:31:57,929 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:31:57" (1/1) ... [2024-11-25 02:31:57,930 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:31:57" (1/1) ... [2024-11-25 02:31:57,936 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:31:57" (1/1) ... [2024-11-25 02:31:57,937 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:31:57" (1/1) ... [2024-11-25 02:31:57,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:31:57" (1/1) ... [2024-11-25 02:31:57,944 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:31:57,945 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:31:57,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:31:57,948 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:31:57,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:31:57" (1/1) ... [2024-11-25 02:31:57,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:31:57,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:31:57,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:31:57,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:31:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:31:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:31:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 02:31:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-25 02:31:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:31:58,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:31:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-25 02:31:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 02:31:58,104 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:31:58,106 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:31:58,301 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-25 02:31:58,302 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:31:58,353 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:31:58,353 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:31:58,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:31:58 BoogieIcfgContainer [2024-11-25 02:31:58,355 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:31:58,356 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:31:58,356 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:31:58,367 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:31:58,368 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:31:58" (1/1) ... [2024-11-25 02:31:58,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:31:58,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:31:58,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2024-11-25 02:31:58,434 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2024-11-25 02:31:58,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 02:31:58,437 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:31:58,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:31:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:31:58,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:31:58,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:31:58,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2024-11-25 02:31:58,781 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2024-11-25 02:31:58,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:31:58,782 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:31:58,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:31:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:31:58,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:31:58,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:31:58,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2024-11-25 02:31:58,940 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2024-11-25 02:31:58,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-25 02:31:58,940 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:31:58,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:31:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:31:59,068 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:31:59,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:31:59,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 36 transitions. [2024-11-25 02:31:59,151 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2024-11-25 02:31:59,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 02:31:59,154 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:31:59,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:31:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:31:59,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:31:59,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:31:59,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 29 states and 41 transitions. [2024-11-25 02:31:59,371 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2024-11-25 02:31:59,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-25 02:31:59,372 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:31:59,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:31:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:31:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-25 02:31:59,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:31:59,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2024-11-25 02:31:59,659 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2024-11-25 02:31:59,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-25 02:31:59,659 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:31:59,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:31:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:31:59,806 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:31:59,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:31:59,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2024-11-25 02:31:59,898 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2024-11-25 02:31:59,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-25 02:31:59,899 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:31:59,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:31:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:32:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:32:00,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:32:00,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 34 states and 46 transitions. [2024-11-25 02:32:00,141 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2024-11-25 02:32:00,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-25 02:32:00,143 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:32:00,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:32:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:32:00,296 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:32:00,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:32:00,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 51 transitions. [2024-11-25 02:32:00,395 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-11-25 02:32:00,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-25 02:32:00,396 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:32:00,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:32:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:32:00,517 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:32:00,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:32:00,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 34 states and 45 transitions. [2024-11-25 02:32:00,640 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-11-25 02:32:00,641 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-25 02:32:00,641 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2024-11-25 02:32:00,650 INFO L726 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-25 02:32:01,053 INFO L77 FloydHoareUtils]: At program point L23(lines 23 93) the Hoare annotation is: true [2024-11-25 02:32:01,054 INFO L77 FloydHoareUtils]: At program point main_returnLabel#1(lines 12 99) the Hoare annotation is: true [2024-11-25 02:32:01,054 INFO L77 FloydHoareUtils]: At program point L40(lines 40 65) the Hoare annotation is: true [2024-11-25 02:32:01,056 INFO L77 FloydHoareUtils]: At program point $Ultimate##8(lines 31 81) the Hoare annotation is: (or (and (< 3 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 4)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 3) (< 2 |ULTIMATE.start_main_~main__i~0#1|)) (and (< 1 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 2)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 5) (< 4 |ULTIMATE.start_main_~main__i~0#1|)) (and (< |ULTIMATE.start_main_~main__i~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~main__i~0#1| 2147483648)))) [2024-11-25 02:32:01,056 INFO L77 FloydHoareUtils]: At program point $Ultimate##6(lines 27 86) the Hoare annotation is: true [2024-11-25 02:32:01,056 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2024-11-25 02:32:01,057 INFO L77 FloydHoareUtils]: At program point L90(lines 21 98) the Hoare annotation is: true [2024-11-25 02:32:01,058 INFO L77 FloydHoareUtils]: At program point L74(line 74) the Hoare annotation is: (or (and (< 3 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 4)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) (= |ULTIMATE.start_main_~main__i~0#1| 0) (and (<= |ULTIMATE.start_main_~main__i~0#1| 3) (< 2 |ULTIMATE.start_main_~main__i~0#1|)) (and (< 1 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 2))) [2024-11-25 02:32:01,058 INFO L77 FloydHoareUtils]: At program point L74-1(line 74) the Hoare annotation is: (or (and (< 3 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 4)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 3) (< 2 |ULTIMATE.start_main_~main__i~0#1|)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1) (<= 0 (+ 2147483649 |ULTIMATE.start_main_~main__i~0#1|))) (and (< 1 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 2))) [2024-11-25 02:32:01,058 INFO L77 FloydHoareUtils]: At program point L33(lines 33 76) the Hoare annotation is: (or (and (< 3 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 4)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) (= |ULTIMATE.start_main_~main__i~0#1| 0) (and (<= |ULTIMATE.start_main_~main__i~0#1| 3) (< 2 |ULTIMATE.start_main_~main__i~0#1|)) (and (< 1 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 2))) [2024-11-25 02:32:01,058 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2024-11-25 02:32:01,058 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-25 02:32:01,059 INFO L77 FloydHoareUtils]: At program point L62(lines 38 70) the Hoare annotation is: true [2024-11-25 02:32:01,059 INFO L77 FloydHoareUtils]: At program point L21(lines 21 98) the Hoare annotation is: true [2024-11-25 02:32:01,059 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-25 02:32:01,059 INFO L77 FloydHoareUtils]: At program point L38(lines 38 70) the Hoare annotation is: true [2024-11-25 02:32:01,059 INFO L77 FloydHoareUtils]: At program point L43(lines 40 65) the Hoare annotation is: true [2024-11-25 02:32:01,059 INFO L77 FloydHoareUtils]: At program point L35(lines 31 81) the Hoare annotation is: true [2024-11-25 02:32:01,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:32:01 ImpRootNode [2024-11-25 02:32:01,079 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:32:01,080 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:32:01,080 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:32:01,080 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:32:01,081 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:31:58" (3/4) ... [2024-11-25 02:32:01,083 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-25 02:32:01,089 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-25 02:32:01,090 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-25 02:32:01,090 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-25 02:32:01,090 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-25 02:32:01,183 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 02:32:01,183 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 02:32:01,183 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:32:01,185 INFO L158 Benchmark]: Toolchain (without parser) took 3600.38ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 35.4MB in the end (delta: 57.5MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2024-11-25 02:32:01,188 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:32:01,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.72ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 81.7MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:32:01,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.29ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:32:01,189 INFO L158 Benchmark]: Boogie Preprocessor took 42.52ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 79.3MB in the end (delta: 885.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:32:01,190 INFO L158 Benchmark]: RCFGBuilder took 410.24ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 66.9MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:32:01,190 INFO L158 Benchmark]: CodeCheck took 2723.47ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 39.9MB in the end (delta: 27.0MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2024-11-25 02:32:01,190 INFO L158 Benchmark]: Witness Printer took 103.31ms. Allocated memory is still 117.4MB. Free memory was 39.9MB in the beginning and 35.4MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:32:01,192 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 322 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 285 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 168 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 556 IncrementalHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 168 mSolverCounterUnsat, 155 mSDtfsCounter, 556 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1067 GetRequests, 991 SyntacticMatches, 40 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 336 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 10/153 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: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: 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: 31]: Location Invariant Derived location invariant: (((((((3 < main__i) && (main__i <= 4)) || ((main__i <= 1) && (1 <= main__i))) || ((main__i <= 3) && (2 < main__i))) || ((1 < main__i) && (main__i <= 2))) || ((main__i <= 5) && (4 < main__i))) || ((main__i < 1) && (0 <= (main__i + 2147483648)))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.72ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 81.7MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.29ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.52ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 79.3MB in the end (delta: 885.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 410.24ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 66.9MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 2723.47ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 39.9MB in the end (delta: 27.0MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Witness Printer took 103.31ms. Allocated memory is still 117.4MB. Free memory was 39.9MB in the beginning and 35.4MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-25 02:32:01,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8283f4cb-d4f6-4ae2-bdc4-d6d3842440c0/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