./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test24-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test24-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 61e163c7079e2ec105ad677de51f27ac7eccc49ef492909c4fa51ebc02ead9b7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:40:16,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:40:16,934 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 17:40:16,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:40:16,941 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:40:16,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:40:16,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:40:16,968 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:40:16,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:40:16,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:40:16,969 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:40:16,970 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:40:16,970 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:40:16,971 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:40:16,971 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:40:16,972 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:40:16,973 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:40:16,973 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:40:16,974 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:40:16,974 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:40:16,975 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:40:16,976 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:40:16,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:40:16,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:40:16,978 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:40:16,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:40:16,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:40:16,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:40:16,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:40:16,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:40:16,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:40:16,981 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 17:40:16,981 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 17:40:16,981 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:40:16,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:40:16,982 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:40:16,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:40:16,982 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:40:16,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:40:16,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:40:16,983 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:40:16,983 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:40:16,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:40:16,984 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:40:16,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:40:16,984 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:40:16,984 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:40:16,984 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:40:16,985 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:40:16,985 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61e163c7079e2ec105ad677de51f27ac7eccc49ef492909c4fa51ebc02ead9b7 [2023-12-02 17:40:17,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:40:17,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:40:17,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:40:17,237 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:40:17,237 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:40:17,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-regression/test24-1.c [2023-12-02 17:40:19,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:40:20,125 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:40:20,125 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/sv-benchmarks/c/ldv-regression/test24-1.c [2023-12-02 17:40:20,132 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/data/368330308/fd157264e57b4056922c789c127059c8/FLAGf3adbf833 [2023-12-02 17:40:20,143 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/data/368330308/fd157264e57b4056922c789c127059c8 [2023-12-02 17:40:20,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:40:20,147 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:40:20,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:40:20,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:40:20,153 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:40:20,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:40:20" (1/1) ... [2023-12-02 17:40:20,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba8a835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:20, skipping insertion in model container [2023-12-02 17:40:20,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:40:20" (1/1) ... [2023-12-02 17:40:20,174 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:40:20,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:40:20,324 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:40:20,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:40:20,356 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:40:20,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:20 WrapperNode [2023-12-02 17:40:20,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:40:20,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:40:20,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:40:20,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:40:20,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:20" (1/1) ... [2023-12-02 17:40:20,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:20" (1/1) ... [2023-12-02 17:40:20,392 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2023-12-02 17:40:20,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:40:20,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:40:20,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:40:20,393 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:40:20,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:20" (1/1) ... [2023-12-02 17:40:20,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:20" (1/1) ... [2023-12-02 17:40:20,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:20" (1/1) ... [2023-12-02 17:40:20,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:20" (1/1) ... [2023-12-02 17:40:20,409 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:20" (1/1) ... [2023-12-02 17:40:20,412 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:20" (1/1) ... [2023-12-02 17:40:20,414 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:20" (1/1) ... [2023-12-02 17:40:20,415 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:20" (1/1) ... [2023-12-02 17:40:20,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:40:20,418 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:40:20,418 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:40:20,418 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:40:20,419 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:20" (1/1) ... [2023-12-02 17:40:20,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:40:20,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:40:20,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:40:20,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:40:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:40:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:40:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 17:40:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 17:40:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:40:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:40:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 17:40:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 17:40:20,545 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:40:20,547 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:40:20,656 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:40:20,686 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:40:20,686 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:40:20,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:40:20 BoogieIcfgContainer [2023-12-02 17:40:20,688 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:40:20,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:40:20,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:40:20,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:40:20,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:40:20" (1/3) ... [2023-12-02 17:40:20,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c392c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:40:20, skipping insertion in model container [2023-12-02 17:40:20,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:20" (2/3) ... [2023-12-02 17:40:20,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c392c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:40:20, skipping insertion in model container [2023-12-02 17:40:20,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:40:20" (3/3) ... [2023-12-02 17:40:20,697 INFO L112 eAbstractionObserver]: Analyzing ICFG test24-1.c [2023-12-02 17:40:20,711 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:40:20,711 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-02 17:40:20,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:40:20,757 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c9f082d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:40:20,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 17:40:20,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:40:20,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 17:40:20,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:20,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-12-02 17:40:20,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 17:40:20,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:40:20,774 INFO L85 PathProgramCache]: Analyzing trace with hash 76080, now seen corresponding path program 1 times [2023-12-02 17:40:20,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:40:20,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969278395] [2023-12-02 17:40:20,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:20,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:40:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:21,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:40:21,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:40:21,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969278395] [2023-12-02 17:40:21,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969278395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:40:21,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:40:21,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:40:21,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321988462] [2023-12-02 17:40:21,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:40:21,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:40:21,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:40:21,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:40:21,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:40:21,124 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:40:21,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:40:21,152 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2023-12-02 17:40:21,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:40:21,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-12-02 17:40:21,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:40:21,161 INFO L225 Difference]: With dead ends: 22 [2023-12-02 17:40:21,162 INFO L226 Difference]: Without dead ends: 11 [2023-12-02 17:40:21,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:40:21,167 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:40:21,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:40:21,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-12-02 17:40:21,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-12-02 17:40:21,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:40:21,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-02 17:40:21,191 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 3 [2023-12-02 17:40:21,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:40:21,191 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-12-02 17:40:21,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:40:21,192 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-02 17:40:21,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 17:40:21,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:21,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 17:40:21,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:40:21,193 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 17:40:21,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:40:21,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2358519, now seen corresponding path program 1 times [2023-12-02 17:40:21,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:40:21,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913549801] [2023-12-02 17:40:21,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:21,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:40:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:21,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:40:21,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:40:21,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913549801] [2023-12-02 17:40:21,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913549801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:40:21,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:40:21,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:40:21,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496241058] [2023-12-02 17:40:21,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:40:21,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:40:21,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:40:21,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:40:21,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:40:21,312 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:40:21,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:40:21,321 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2023-12-02 17:40:21,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:40:21,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-12-02 17:40:21,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:40:21,322 INFO L225 Difference]: With dead ends: 11 [2023-12-02 17:40:21,322 INFO L226 Difference]: Without dead ends: 10 [2023-12-02 17:40:21,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:40:21,324 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:40:21,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:40:21,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-12-02 17:40:21,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-12-02 17:40:21,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:40:21,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-12-02 17:40:21,328 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 4 [2023-12-02 17:40:21,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:40:21,328 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-12-02 17:40:21,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:40:21,329 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-12-02 17:40:21,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 17:40:21,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:21,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:40:21,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 17:40:21,330 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 17:40:21,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:40:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1543206647, now seen corresponding path program 1 times [2023-12-02 17:40:21,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:40:21,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031710624] [2023-12-02 17:40:21,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:21,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:40:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:21,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:40:21,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:40:21,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031710624] [2023-12-02 17:40:21,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031710624] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:40:21,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:40:21,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:40:21,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760764975] [2023-12-02 17:40:21,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:40:21,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:40:21,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:40:21,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:40:21,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:40:21,382 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:40:21,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:40:21,416 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2023-12-02 17:40:21,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:40:21,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-02 17:40:21,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:40:21,417 INFO L225 Difference]: With dead ends: 10 [2023-12-02 17:40:21,417 INFO L226 Difference]: Without dead ends: 9 [2023-12-02 17:40:21,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:40:21,419 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:40:21,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:40:21,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-02 17:40:21,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-12-02 17:40:21,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:40:21,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-12-02 17:40:21,423 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2023-12-02 17:40:21,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:40:21,423 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-12-02 17:40:21,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:40:21,424 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-12-02 17:40:21,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 17:40:21,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:21,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:40:21,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 17:40:21,425 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 17:40:21,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:40:21,425 INFO L85 PathProgramCache]: Analyzing trace with hash 594765854, now seen corresponding path program 1 times [2023-12-02 17:40:21,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:40:21,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461254173] [2023-12-02 17:40:21,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:21,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:40:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:21,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:40:21,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:40:21,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461254173] [2023-12-02 17:40:21,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461254173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:40:21,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:40:21,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 17:40:21,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243038873] [2023-12-02 17:40:21,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:40:21,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:40:21,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:40:21,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:40:21,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:40:21,534 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:40:21,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:40:21,566 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2023-12-02 17:40:21,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 17:40:21,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 17:40:21,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:40:21,567 INFO L225 Difference]: With dead ends: 9 [2023-12-02 17:40:21,567 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 17:40:21,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 17:40:21,569 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:40:21,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:40:21,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 17:40:21,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 17:40:21,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:40:21,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 17:40:21,572 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2023-12-02 17:40:21,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:40:21,572 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 17:40:21,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:40:21,572 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 17:40:21,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 17:40:21,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-12-02 17:40:21,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-12-02 17:40:21,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-12-02 17:40:21,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-12-02 17:40:21,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 17:40:21,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 17:40:21,590 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2023-12-02 17:40:21,591 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 17:40:21,591 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-12-02 17:40:21,591 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2023-12-02 17:40:21,591 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2023-12-02 17:40:21,591 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2023-12-02 17:40:21,591 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2023-12-02 17:40:21,591 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-12-02 17:40:21,591 INFO L899 garLoopResultBuilder]: For program point L23(lines 23 34) no Hoare annotation was computed. [2023-12-02 17:40:21,592 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 34) no Hoare annotation was computed. [2023-12-02 17:40:21,592 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 17:40:21,592 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 16 40) no Hoare annotation was computed. [2023-12-02 17:40:21,592 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2023-12-02 17:40:21,592 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-12-02 17:40:21,592 INFO L899 garLoopResultBuilder]: For program point L28-1(lines 28 30) no Hoare annotation was computed. [2023-12-02 17:40:21,593 INFO L895 garLoopResultBuilder]: At program point L28-3(lines 28 30) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= (select (select |#memory_int| |ULTIMATE.start_main_~pa~0#1.base|) |ULTIMATE.start_main_~pa~0#1.offset|) 9)) [2023-12-02 17:40:21,593 INFO L899 garLoopResultBuilder]: For program point L28-4(lines 28 30) no Hoare annotation was computed. [2023-12-02 17:40:21,596 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-02 17:40:21,598 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 17:40:21,608 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pa~0!base][~pa~0!offset] could not be translated [2023-12-02 17:40:21,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:40:21 BoogieIcfgContainer [2023-12-02 17:40:21,609 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 17:40:21,610 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 17:40:21,610 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 17:40:21,610 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 17:40:21,610 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:40:20" (3/4) ... [2023-12-02 17:40:21,611 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 17:40:21,618 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-12-02 17:40:21,618 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 17:40:21,618 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 17:40:21,619 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 17:40:21,689 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 17:40:21,689 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 17:40:21,690 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 17:40:21,690 INFO L158 Benchmark]: Toolchain (without parser) took 1543.33ms. Allocated memory is still 157.3MB. Free memory was 112.2MB in the beginning and 82.3MB in the end (delta: 29.9MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2023-12-02 17:40:21,691 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 123.7MB. Free memory was 90.8MB in the beginning and 90.8MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:40:21,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.73ms. Allocated memory is still 157.3MB. Free memory was 111.4MB in the beginning and 101.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 17:40:21,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.92ms. Allocated memory is still 157.3MB. Free memory was 101.0MB in the beginning and 99.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:40:21,692 INFO L158 Benchmark]: Boogie Preprocessor took 23.79ms. Allocated memory is still 157.3MB. Free memory was 99.7MB in the beginning and 98.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 17:40:21,692 INFO L158 Benchmark]: RCFGBuilder took 270.50ms. Allocated memory is still 157.3MB. Free memory was 98.2MB in the beginning and 86.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 17:40:21,693 INFO L158 Benchmark]: TraceAbstraction took 918.80ms. Allocated memory is still 157.3MB. Free memory was 85.6MB in the beginning and 86.5MB in the end (delta: -924.4kB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2023-12-02 17:40:21,693 INFO L158 Benchmark]: Witness Printer took 80.25ms. Allocated memory is still 157.3MB. Free memory was 86.5MB in the beginning and 82.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 17:40:21,695 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 123.7MB. Free memory was 90.8MB in the beginning and 90.8MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.73ms. Allocated memory is still 157.3MB. Free memory was 111.4MB in the beginning and 101.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.92ms. Allocated memory is still 157.3MB. Free memory was 101.0MB in the beginning and 99.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.79ms. Allocated memory is still 157.3MB. Free memory was 99.7MB in the beginning and 98.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 270.50ms. Allocated memory is still 157.3MB. Free memory was 98.2MB in the beginning and 86.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 918.80ms. Allocated memory is still 157.3MB. Free memory was 85.6MB in the beginning and 86.5MB in the end (delta: -924.4kB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. * Witness Printer took 80.25ms. Allocated memory is still 157.3MB. Free memory was 86.5MB in the beginning and 82.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pa~0!base][~pa~0!offset] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 22 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 13 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (0 <= (i + 2147483648)) RESULT: Ultimate proved your program to be correct! [2023-12-02 17:40:21,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80f6e0dd-46cb-4cc8-9095-f9263a648b2f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE