./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/init-3-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/init-3-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje --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 385b06dfd41f8b2cf291934cb4635d07bfe2a63001fa162165126d7b890c1d72 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:41:08,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:41:08,546 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:41:08,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:41:08,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:41:08,597 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:41:08,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:41:08,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:41:08,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:41:08,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:41:08,602 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:41:08,602 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:41:08,603 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:41:08,604 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:41:08,605 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:41:08,605 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:41:08,606 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:41:08,610 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:41:08,610 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:41:08,610 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:41:08,611 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:41:08,611 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:41:08,612 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:41:08,612 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:41:08,613 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:41:08,613 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:41:08,613 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:41:08,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:41:08,614 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:41:08,614 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:41:08,614 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:41:08,614 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:41:08,617 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:41:08,618 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:41:08,618 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:41:08,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:41:08,619 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:41:08,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:41:08,620 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:41:08,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:41:08,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:41:08,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:41:08,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:41:08,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:41:08,622 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:41:08,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:41:08,623 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:41:08,623 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:41:08,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:41:08,623 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_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 385b06dfd41f8b2cf291934cb4635d07bfe2a63001fa162165126d7b890c1d72 [2024-11-09 05:41:08,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:41:08,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:41:08,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:41:08,956 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:41:08,957 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:41:08,958 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/array-multidimensional/init-3-u.c Unable to find full path for "g++" [2024-11-09 05:41:10,915 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:41:11,151 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:41:11,152 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/sv-benchmarks/c/array-multidimensional/init-3-u.c [2024-11-09 05:41:11,164 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/data/0cf798419/a7bf26c39e6b44e8a8c2a16b8796db3c/FLAG3a3ee445b [2024-11-09 05:41:11,513 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/data/0cf798419/a7bf26c39e6b44e8a8c2a16b8796db3c [2024-11-09 05:41:11,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:41:11,522 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:41:11,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:41:11,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:41:11,530 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:41:11,531 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:41:11" (1/1) ... [2024-11-09 05:41:11,536 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51ef015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:11, skipping insertion in model container [2024-11-09 05:41:11,536 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:41:11" (1/1) ... [2024-11-09 05:41:11,564 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:41:11,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:41:11,875 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:41:11,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:41:11,927 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:41:11,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:11 WrapperNode [2024-11-09 05:41:11,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:41:11,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:41:11,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:41:11,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:41:11,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:11" (1/1) ... [2024-11-09 05:41:11,950 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:11" (1/1) ... [2024-11-09 05:41:11,983 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2024-11-09 05:41:11,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:41:11,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:41:11,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:41:11,989 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:41:12,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:11" (1/1) ... [2024-11-09 05:41:12,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:11" (1/1) ... [2024-11-09 05:41:12,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:11" (1/1) ... [2024-11-09 05:41:12,003 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:11" (1/1) ... [2024-11-09 05:41:12,008 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:11" (1/1) ... [2024-11-09 05:41:12,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:11" (1/1) ... [2024-11-09 05:41:12,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:11" (1/1) ... [2024-11-09 05:41:12,015 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:11" (1/1) ... [2024-11-09 05:41:12,018 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:41:12,019 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:41:12,019 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:41:12,019 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:41:12,020 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:11" (1/1) ... [2024-11-09 05:41:12,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:41:12,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:41:12,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:41:12,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:41:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:41:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:41:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:41:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:41:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:41:12,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:41:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:41:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:41:12,193 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:41:12,196 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:41:12,568 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-09 05:41:12,569 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:41:12,680 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:41:12,684 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:41:12,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:41:12 BoogieIcfgContainer [2024-11-09 05:41:12,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:41:12,702 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:41:12,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:41:12,708 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:41:12,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:41:11" (1/3) ... [2024-11-09 05:41:12,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2666c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:41:12, skipping insertion in model container [2024-11-09 05:41:12,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:41:11" (2/3) ... [2024-11-09 05:41:12,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2666c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:41:12, skipping insertion in model container [2024-11-09 05:41:12,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:41:12" (3/3) ... [2024-11-09 05:41:12,713 INFO L112 eAbstractionObserver]: Analyzing ICFG init-3-u.c [2024-11-09 05:41:12,735 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:41:12,736 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-09 05:41:12,823 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:41:12,835 INFO L333 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, 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;@7810eceb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:41:12,835 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-09 05:41:12,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 27 states have (on average 1.8888888888888888) internal successors, (51), 39 states have internal predecessors, (51), 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) [2024-11-09 05:41:12,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 05:41:12,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:12,849 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 05:41:12,849 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:41:12,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:12,857 INFO L85 PathProgramCache]: Analyzing trace with hash 139642334, now seen corresponding path program 1 times [2024-11-09 05:41:12,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:12,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411260761] [2024-11-09 05:41:12,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:12,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:13,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:41:13,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:13,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411260761] [2024-11-09 05:41:13,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411260761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:13,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:41:13,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:41:13,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900651013] [2024-11-09 05:41:13,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:13,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:41:13,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:13,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:41:13,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:41:13,303 INFO L87 Difference]: Start difference. First operand has 40 states, 27 states have (on average 1.8888888888888888) internal successors, (51), 39 states have internal predecessors, (51), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-09 05:41:13,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:13,518 INFO L93 Difference]: Finished difference Result 99 states and 133 transitions. [2024-11-09 05:41:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:41:13,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2024-11-09 05:41:13,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:13,533 INFO L225 Difference]: With dead ends: 99 [2024-11-09 05:41:13,533 INFO L226 Difference]: Without dead ends: 58 [2024-11-09 05:41:13,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:41:13,541 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 91 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:13,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 38 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:41:13,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-09 05:41:13,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2024-11-09 05:41:13,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.7142857142857142) internal successors, (72), 53 states have internal predecessors, (72), 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) [2024-11-09 05:41:13,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2024-11-09 05:41:13,594 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 72 transitions. Word has length 5 [2024-11-09 05:41:13,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:13,595 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 72 transitions. [2024-11-09 05:41:13,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-09 05:41:13,595 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 72 transitions. [2024-11-09 05:41:13,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 05:41:13,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:13,597 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:41:13,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:41:13,597 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:41:13,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:13,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1764163688, now seen corresponding path program 1 times [2024-11-09 05:41:13,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:13,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459609452] [2024-11-09 05:41:13,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:13,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:13,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:41:13,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:13,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459609452] [2024-11-09 05:41:13,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459609452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:13,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:41:13,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:41:13,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687749542] [2024-11-09 05:41:13,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:13,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:41:13,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:13,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:41:13,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:41:13,717 INFO L87 Difference]: Start difference. First operand 54 states and 72 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2024-11-09 05:41:13,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:13,803 INFO L93 Difference]: Finished difference Result 74 states and 104 transitions. [2024-11-09 05:41:13,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:41:13,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2024-11-09 05:41:13,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:13,807 INFO L225 Difference]: With dead ends: 74 [2024-11-09 05:41:13,807 INFO L226 Difference]: Without dead ends: 70 [2024-11-09 05:41:13,808 INFO L431 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 [2024-11-09 05:41:13,809 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 4 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:13,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 64 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:41:13,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-09 05:41:13,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-11-09 05:41:13,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 58 states have (on average 1.6551724137931034) internal successors, (96), 69 states have internal predecessors, (96), 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) [2024-11-09 05:41:13,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2024-11-09 05:41:13,842 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 8 [2024-11-09 05:41:13,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:13,843 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2024-11-09 05:41:13,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2024-11-09 05:41:13,843 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2024-11-09 05:41:13,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 05:41:13,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:13,848 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:41:13,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:41:13,848 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:41:13,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:13,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1161215558, now seen corresponding path program 1 times [2024-11-09 05:41:13,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:13,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611520379] [2024-11-09 05:41:13,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:13,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:13,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:41:13,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:13,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611520379] [2024-11-09 05:41:13,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611520379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:13,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:41:13,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:41:13,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549725933] [2024-11-09 05:41:13,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:13,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:41:13,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:13,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:41:13,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:41:13,982 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 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) [2024-11-09 05:41:14,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:14,124 INFO L93 Difference]: Finished difference Result 139 states and 191 transitions. [2024-11-09 05:41:14,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:41:14,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 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) Word has length 10 [2024-11-09 05:41:14,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:14,127 INFO L225 Difference]: With dead ends: 139 [2024-11-09 05:41:14,127 INFO L226 Difference]: Without dead ends: 70 [2024-11-09 05:41:14,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:41:14,133 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 50 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:14,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 38 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:41:14,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-09 05:41:14,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-11-09 05:41:14,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 58 states have (on average 1.5172413793103448) internal successors, (88), 69 states have internal predecessors, (88), 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) [2024-11-09 05:41:14,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 88 transitions. [2024-11-09 05:41:14,155 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 88 transitions. Word has length 10 [2024-11-09 05:41:14,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:14,155 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 88 transitions. [2024-11-09 05:41:14,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 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) [2024-11-09 05:41:14,156 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 88 transitions. [2024-11-09 05:41:14,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 05:41:14,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:14,157 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:41:14,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:41:14,158 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:41:14,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:14,158 INFO L85 PathProgramCache]: Analyzing trace with hash 2092755217, now seen corresponding path program 1 times [2024-11-09 05:41:14,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:14,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069508720] [2024-11-09 05:41:14,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:14,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:14,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:41:14,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:14,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069508720] [2024-11-09 05:41:14,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069508720] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:41:14,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645316769] [2024-11-09 05:41:14,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:14,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:14,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:41:14,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:41:14,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:41:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:14,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:41:14,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:41:14,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:41:14,495 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:41:14,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645316769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:14,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:41:14,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-09 05:41:14,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831336299] [2024-11-09 05:41:14,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:14,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:41:14,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:14,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:41:14,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:41:14,500 INFO L87 Difference]: Start difference. First operand 70 states and 88 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-09 05:41:14,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:14,597 INFO L93 Difference]: Finished difference Result 70 states and 88 transitions. [2024-11-09 05:41:14,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:41:14,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2024-11-09 05:41:14,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:14,604 INFO L225 Difference]: With dead ends: 70 [2024-11-09 05:41:14,605 INFO L226 Difference]: Without dead ends: 68 [2024-11-09 05:41:14,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:41:14,606 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 7 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:14,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 60 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:41:14,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-09 05:41:14,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-09 05:41:14,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 58 states have (on average 1.4482758620689655) internal successors, (84), 67 states have internal predecessors, (84), 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) [2024-11-09 05:41:14,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 84 transitions. [2024-11-09 05:41:14,628 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 84 transitions. Word has length 12 [2024-11-09 05:41:14,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:14,628 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 84 transitions. [2024-11-09 05:41:14,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-09 05:41:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 84 transitions. [2024-11-09 05:41:14,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 05:41:14,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:14,633 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:41:14,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 05:41:14,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:14,834 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:41:14,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:14,835 INFO L85 PathProgramCache]: Analyzing trace with hash 450902350, now seen corresponding path program 1 times [2024-11-09 05:41:14,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:14,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89801649] [2024-11-09 05:41:14,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:14,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:14,990 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:41:14,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:14,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89801649] [2024-11-09 05:41:14,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89801649] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:41:14,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866354179] [2024-11-09 05:41:14,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:14,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:14,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:41:14,997 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:41:14,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:41:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:15,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:41:15,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:41:15,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:41:15,128 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:41:15,185 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:41:15,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866354179] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:41:15,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1113152435] [2024-11-09 05:41:15,222 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-09 05:41:15,224 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:41:15,229 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:41:15,236 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:41:15,237 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:41:16,405 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:41:16,924 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '941#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 (+ |ULTIMATE.start_main_~C~0#1| 2147483648)) (<= 2 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~C~0#1| 2147483647) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= |ULTIMATE.start_main_~j~0#1| 0) (= |ULTIMATE.start_main_~n~0#1| 1000))' at error location [2024-11-09 05:41:16,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:41:16,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:41:16,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-09 05:41:16,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446277219] [2024-11-09 05:41:16,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:41:16,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:41:16,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:16,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:41:16,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:41:16,930 INFO L87 Difference]: Start difference. First operand 68 states and 84 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 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) [2024-11-09 05:41:17,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:17,081 INFO L93 Difference]: Finished difference Result 118 states and 168 transitions. [2024-11-09 05:41:17,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:41:17,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 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 13 [2024-11-09 05:41:17,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:17,084 INFO L225 Difference]: With dead ends: 118 [2024-11-09 05:41:17,084 INFO L226 Difference]: Without dead ends: 116 [2024-11-09 05:41:17,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:41:17,086 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 18 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:17,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 120 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:41:17,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-09 05:41:17,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-09 05:41:17,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 106 states have (on average 1.471698113207547) internal successors, (156), 115 states have internal predecessors, (156), 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) [2024-11-09 05:41:17,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 156 transitions. [2024-11-09 05:41:17,110 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 156 transitions. Word has length 13 [2024-11-09 05:41:17,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:17,110 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 156 transitions. [2024-11-09 05:41:17,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 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) [2024-11-09 05:41:17,111 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 156 transitions. [2024-11-09 05:41:17,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 05:41:17,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:17,111 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:41:17,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:41:17,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:17,313 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:41:17,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:17,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1103506815, now seen corresponding path program 1 times [2024-11-09 05:41:17,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:17,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318099642] [2024-11-09 05:41:17,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:17,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:41:17,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:17,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318099642] [2024-11-09 05:41:17,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318099642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:17,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:41:17,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:41:17,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682117366] [2024-11-09 05:41:17,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:17,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:41:17,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:17,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:41:17,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:41:17,416 INFO L87 Difference]: Start difference. First operand 116 states and 156 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2024-11-09 05:41:17,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:17,465 INFO L93 Difference]: Finished difference Result 116 states and 156 transitions. [2024-11-09 05:41:17,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:41:17,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2024-11-09 05:41:17,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:17,467 INFO L225 Difference]: With dead ends: 116 [2024-11-09 05:41:17,467 INFO L226 Difference]: Without dead ends: 114 [2024-11-09 05:41:17,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:41:17,469 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:17,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 29 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:41:17,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-09 05:41:17,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-09 05:41:17,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 106 states have (on average 1.4528301886792452) internal successors, (154), 113 states have internal predecessors, (154), 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) [2024-11-09 05:41:17,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 154 transitions. [2024-11-09 05:41:17,483 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 154 transitions. Word has length 14 [2024-11-09 05:41:17,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:17,484 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 154 transitions. [2024-11-09 05:41:17,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2024-11-09 05:41:17,484 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 154 transitions. [2024-11-09 05:41:17,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 05:41:17,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:17,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:41:17,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:41:17,486 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:41:17,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:17,487 INFO L85 PathProgramCache]: Analyzing trace with hash -151027026, now seen corresponding path program 1 times [2024-11-09 05:41:17,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:17,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303559469] [2024-11-09 05:41:17,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:17,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:17,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:41:17,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:17,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303559469] [2024-11-09 05:41:17,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303559469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:17,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:41:17,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:41:17,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075767245] [2024-11-09 05:41:17,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:17,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:41:17,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:17,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:41:17,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:41:17,539 INFO L87 Difference]: Start difference. First operand 114 states and 154 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-11-09 05:41:17,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:17,607 INFO L93 Difference]: Finished difference Result 226 states and 306 transitions. [2024-11-09 05:41:17,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:41:17,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2024-11-09 05:41:17,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:17,611 INFO L225 Difference]: With dead ends: 226 [2024-11-09 05:41:17,611 INFO L226 Difference]: Without dead ends: 224 [2024-11-09 05:41:17,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:41:17,612 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 23 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:17,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 59 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:41:17,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-09 05:41:17,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 218. [2024-11-09 05:41:17,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 210 states have (on average 1.4476190476190476) internal successors, (304), 217 states have internal predecessors, (304), 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) [2024-11-09 05:41:17,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 304 transitions. [2024-11-09 05:41:17,656 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 304 transitions. Word has length 15 [2024-11-09 05:41:17,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:17,659 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 304 transitions. [2024-11-09 05:41:17,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-11-09 05:41:17,660 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 304 transitions. [2024-11-09 05:41:17,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 05:41:17,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:17,662 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 05:41:17,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 05:41:17,662 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:41:17,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:17,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1278089451, now seen corresponding path program 1 times [2024-11-09 05:41:17,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:17,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58991072] [2024-11-09 05:41:17,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:17,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:17,796 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:41:17,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:17,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58991072] [2024-11-09 05:41:17,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58991072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:41:17,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570766986] [2024-11-09 05:41:17,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:17,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:17,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:41:17,800 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:41:17,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:41:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:17,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:41:17,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:41:17,973 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:41:17,973 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:41:18,045 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:41:18,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570766986] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:41:18,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1222438330] [2024-11-09 05:41:18,054 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2024-11-09 05:41:18,055 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:41:18,055 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:41:18,055 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:41:18,056 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:41:19,487 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:41:20,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1222438330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:20,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:41:20,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 4, 4] total 17 [2024-11-09 05:41:20,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768979509] [2024-11-09 05:41:20,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:20,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:41:20,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:20,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:41:20,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:41:20,318 INFO L87 Difference]: Start difference. First operand 218 states and 304 transitions. Second operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2024-11-09 05:41:21,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:21,395 INFO L93 Difference]: Finished difference Result 411 states and 572 transitions. [2024-11-09 05:41:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:41:21,396 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 20 [2024-11-09 05:41:21,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:21,397 INFO L225 Difference]: With dead ends: 411 [2024-11-09 05:41:21,398 INFO L226 Difference]: Without dead ends: 218 [2024-11-09 05:41:21,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-09 05:41:21,400 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 25 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:21,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 60 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:41:21,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-09 05:41:21,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 180. [2024-11-09 05:41:21,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 172 states have (on average 1.4186046511627908) internal successors, (244), 179 states have internal predecessors, (244), 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) [2024-11-09 05:41:21,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 244 transitions. [2024-11-09 05:41:21,421 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 244 transitions. Word has length 20 [2024-11-09 05:41:21,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:21,424 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 244 transitions. [2024-11-09 05:41:21,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2024-11-09 05:41:21,425 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 244 transitions. [2024-11-09 05:41:21,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 05:41:21,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:21,426 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 05:41:21,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:41:21,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:21,627 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:41:21,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:21,628 INFO L85 PathProgramCache]: Analyzing trace with hash 474315462, now seen corresponding path program 1 times [2024-11-09 05:41:21,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:21,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749010364] [2024-11-09 05:41:21,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:21,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:21,740 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:41:21,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:21,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749010364] [2024-11-09 05:41:21,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749010364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:41:21,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856546740] [2024-11-09 05:41:21,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:21,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:21,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:41:21,744 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:41:21,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:41:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:21,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:41:21,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:41:21,876 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:41:21,877 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:41:21,944 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:41:21,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856546740] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:41:21,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1596178804] [2024-11-09 05:41:21,947 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2024-11-09 05:41:21,947 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:41:21,948 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:41:21,948 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:41:21,948 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:41:30,583 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:41:30,914 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2940#true' at error location [2024-11-09 05:41:30,914 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:41:30,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:41:30,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 4, 4] total 9 [2024-11-09 05:41:30,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410424814] [2024-11-09 05:41:30,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:41:30,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:41:30,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:30,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:41:30,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=350, Unknown=1, NotChecked=0, Total=420 [2024-11-09 05:41:30,917 INFO L87 Difference]: Start difference. First operand 180 states and 244 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 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) [2024-11-09 05:41:31,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:31,458 INFO L93 Difference]: Finished difference Result 481 states and 651 transitions. [2024-11-09 05:41:31,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:41:31,458 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 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 29 [2024-11-09 05:41:31,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:31,461 INFO L225 Difference]: With dead ends: 481 [2024-11-09 05:41:31,461 INFO L226 Difference]: Without dead ends: 305 [2024-11-09 05:41:31,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=209, Invalid=846, Unknown=1, NotChecked=0, Total=1056 [2024-11-09 05:41:31,466 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 299 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:31,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 49 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:41:31,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-09 05:41:31,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 296. [2024-11-09 05:41:31,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 288 states have (on average 1.1597222222222223) internal successors, (334), 295 states have internal predecessors, (334), 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) [2024-11-09 05:41:31,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 334 transitions. [2024-11-09 05:41:31,489 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 334 transitions. Word has length 29 [2024-11-09 05:41:31,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:31,490 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 334 transitions. [2024-11-09 05:41:31,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 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) [2024-11-09 05:41:31,490 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 334 transitions. [2024-11-09 05:41:31,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 05:41:31,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:31,494 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:41:31,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:41:31,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:31,695 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:41:31,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:31,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1177169136, now seen corresponding path program 1 times [2024-11-09 05:41:31,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:31,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742190725] [2024-11-09 05:41:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:31,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:31,808 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-09 05:41:31,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:31,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742190725] [2024-11-09 05:41:31,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742190725] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:41:31,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029628775] [2024-11-09 05:41:31,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:31,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:31,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:41:31,814 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:41:31,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:41:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:31,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:41:31,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:41:32,077 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 90 proven. 28 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-09 05:41:32,081 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:41:32,239 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 90 proven. 28 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-09 05:41:32,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029628775] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:41:32,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [402331179] [2024-11-09 05:41:32,243 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2024-11-09 05:41:32,248 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:41:32,248 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:41:32,249 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:41:32,250 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:41:39,369 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:41:39,678 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4434#(and (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-09 05:41:39,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:41:39,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:41:39,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 7, 7] total 15 [2024-11-09 05:41:39,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892463342] [2024-11-09 05:41:39,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:41:39,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 05:41:39,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:39,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 05:41:39,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=617, Unknown=1, NotChecked=0, Total=756 [2024-11-09 05:41:39,680 INFO L87 Difference]: Start difference. First operand 296 states and 334 transitions. Second operand has 16 states, 16 states have (on average 4.8125) internal successors, (77), 15 states have internal predecessors, (77), 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) [2024-11-09 05:41:40,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:40,123 INFO L93 Difference]: Finished difference Result 820 states and 1014 transitions. [2024-11-09 05:41:40,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:41:40,123 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.8125) internal successors, (77), 15 states have internal predecessors, (77), 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 51 [2024-11-09 05:41:40,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:40,125 INFO L225 Difference]: With dead ends: 820 [2024-11-09 05:41:40,126 INFO L226 Difference]: Without dead ends: 528 [2024-11-09 05:41:40,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=324, Invalid=1157, Unknown=1, NotChecked=0, Total=1482 [2024-11-09 05:41:40,128 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 222 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:40,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 75 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:41:40,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-09 05:41:40,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2024-11-09 05:41:40,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 522 states have (on average 1.0689655172413792) internal successors, (558), 527 states have internal predecessors, (558), 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) [2024-11-09 05:41:40,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 558 transitions. [2024-11-09 05:41:40,163 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 558 transitions. Word has length 51 [2024-11-09 05:41:40,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:40,163 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 558 transitions. [2024-11-09 05:41:40,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.8125) internal successors, (77), 15 states have internal predecessors, (77), 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) [2024-11-09 05:41:40,164 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 558 transitions. [2024-11-09 05:41:40,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-09 05:41:40,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:40,168 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 05:41:40,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 05:41:40,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 05:41:40,372 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:41:40,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:40,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1993413452, now seen corresponding path program 1 times [2024-11-09 05:41:40,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:40,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225270346] [2024-11-09 05:41:40,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:40,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:40,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1848 backedges. 851 proven. 424 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2024-11-09 05:41:40,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:40,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225270346] [2024-11-09 05:41:40,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225270346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:41:40,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100754504] [2024-11-09 05:41:40,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:40,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:40,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:41:40,641 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:41:40,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:41:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:40,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:41:40,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:41:41,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1848 backedges. 849 proven. 190 refuted. 0 times theorem prover too weak. 809 trivial. 0 not checked. [2024-11-09 05:41:41,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:41:41,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1848 backedges. 849 proven. 190 refuted. 0 times theorem prover too weak. 809 trivial. 0 not checked. [2024-11-09 05:41:41,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100754504] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:41:41,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [217376947] [2024-11-09 05:41:41,507 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2024-11-09 05:41:41,507 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:41:41,508 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:41:41,508 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:41:41,508 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:41:47,344 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:41:47,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [217376947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:47,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:41:47,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [3, 13, 13] total 39 [2024-11-09 05:41:47,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447239542] [2024-11-09 05:41:47,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:47,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:41:47,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:47,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:41:47,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=1132, Unknown=1, NotChecked=0, Total=1482 [2024-11-09 05:41:47,614 INFO L87 Difference]: Start difference. First operand 528 states and 558 transitions. Second operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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) [2024-11-09 05:41:47,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:47,977 INFO L93 Difference]: Finished difference Result 812 states and 860 transitions. [2024-11-09 05:41:47,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:41:47,977 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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 142 [2024-11-09 05:41:47,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:47,980 INFO L225 Difference]: With dead ends: 812 [2024-11-09 05:41:47,980 INFO L226 Difference]: Without dead ends: 524 [2024-11-09 05:41:47,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=436, Invalid=1631, Unknown=3, NotChecked=0, Total=2070 [2024-11-09 05:41:47,982 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 145 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 23 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:47,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 6 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 138 Invalid, 6 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:41:47,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-11-09 05:41:48,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 243. [2024-11-09 05:41:48,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 241 states have (on average 1.053941908713693) internal successors, (254), 242 states have internal predecessors, (254), 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) [2024-11-09 05:41:48,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 254 transitions. [2024-11-09 05:41:48,014 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 254 transitions. Word has length 142 [2024-11-09 05:41:48,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:48,014 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 254 transitions. [2024-11-09 05:41:48,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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) [2024-11-09 05:41:48,015 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 254 transitions. [2024-11-09 05:41:48,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-09 05:41:48,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:48,017 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 05:41:48,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 05:41:48,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 05:41:48,217 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:41:48,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:48,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1666274798, now seen corresponding path program 1 times [2024-11-09 05:41:48,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:48,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588618055] [2024-11-09 05:41:48,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:48,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:48,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1850 backedges. 852 proven. 425 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2024-11-09 05:41:48,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:48,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588618055] [2024-11-09 05:41:48,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588618055] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:41:48,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468076215] [2024-11-09 05:41:48,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:48,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:48,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:41:48,458 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:41:48,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:41:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:48,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:41:48,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:41:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1850 backedges. 849 proven. 190 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2024-11-09 05:41:48,921 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:41:49,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1850 backedges. 849 proven. 190 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2024-11-09 05:41:49,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468076215] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:41:49,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1423318743] [2024-11-09 05:41:49,165 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2024-11-09 05:41:49,165 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:41:49,166 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:41:49,166 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:41:49,166 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:41:55,098 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:41:55,390 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9278#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-09 05:41:55,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:41:55,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:41:55,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 13, 13] total 28 [2024-11-09 05:41:55,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714113264] [2024-11-09 05:41:55,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:41:55,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 05:41:55,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:55,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 05:41:55,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=1206, Unknown=1, NotChecked=0, Total=1560 [2024-11-09 05:41:55,393 INFO L87 Difference]: Start difference. First operand 243 states and 254 transitions. Second operand has 28 states, 28 states have (on average 5.035714285714286) internal successors, (141), 28 states have internal predecessors, (141), 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) [2024-11-09 05:41:58,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:58,402 INFO L93 Difference]: Finished difference Result 1093 states and 1234 transitions. [2024-11-09 05:41:58,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-09 05:41:58,403 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.035714285714286) internal successors, (141), 28 states have internal predecessors, (141), 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 143 [2024-11-09 05:41:58,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:58,406 INFO L225 Difference]: With dead ends: 1093 [2024-11-09 05:41:58,406 INFO L226 Difference]: Without dead ends: 854 [2024-11-09 05:41:58,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3007 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2600, Invalid=6711, Unknown=1, NotChecked=0, Total=9312 [2024-11-09 05:41:58,410 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 1337 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:58,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 33 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:41:58,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-11-09 05:41:58,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 762. [2024-11-09 05:41:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 760 states have (on average 1.0210526315789474) internal successors, (776), 761 states have internal predecessors, (776), 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) [2024-11-09 05:41:58,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 776 transitions. [2024-11-09 05:41:58,513 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 776 transitions. Word has length 143 [2024-11-09 05:41:58,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:58,514 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 776 transitions. [2024-11-09 05:41:58,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.035714285714286) internal successors, (141), 28 states have internal predecessors, (141), 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) [2024-11-09 05:41:58,515 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 776 transitions. [2024-11-09 05:41:58,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-09 05:41:58,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:58,527 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 110, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 05:41:58,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 05:41:58,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 05:41:58,731 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:41:58,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:58,732 INFO L85 PathProgramCache]: Analyzing trace with hash 607214448, now seen corresponding path program 2 times [2024-11-09 05:41:58,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:58,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855849537] [2024-11-09 05:41:58,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:58,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 24587 backedges. 0 proven. 7936 refuted. 0 times theorem prover too weak. 16651 trivial. 0 not checked. [2024-11-09 05:41:59,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:59,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855849537] [2024-11-09 05:41:59,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855849537] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:41:59,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143681045] [2024-11-09 05:41:59,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:41:59,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:59,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:41:59,518 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:41:59,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:41:59,705 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-09 05:41:59,706 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:41:59,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:41:59,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:42:00,600 INFO L134 CoverageAnalysis]: Checked inductivity of 24587 backedges. 0 proven. 7936 refuted. 0 times theorem prover too weak. 16651 trivial. 0 not checked. [2024-11-09 05:42:00,604 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:42:01,426 INFO L134 CoverageAnalysis]: Checked inductivity of 24587 backedges. 0 proven. 7936 refuted. 0 times theorem prover too weak. 16651 trivial. 0 not checked. [2024-11-09 05:42:01,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143681045] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:42:01,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1541505877] [2024-11-09 05:42:01,429 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2024-11-09 05:42:01,430 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:42:01,430 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:42:01,430 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:42:01,431 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:42:07,101 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:42:07,387 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14634#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-09 05:42:07,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:42:07,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:42:07,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2024-11-09 05:42:07,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783935638] [2024-11-09 05:42:07,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:42:07,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:42:07,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:42:07,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:42:07,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=249, Unknown=1, NotChecked=0, Total=306 [2024-11-09 05:42:07,392 INFO L87 Difference]: Start difference. First operand 762 states and 776 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-11-09 05:42:07,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:42:07,551 INFO L93 Difference]: Finished difference Result 762 states and 776 transitions. [2024-11-09 05:42:07,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:42:07,552 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 473 [2024-11-09 05:42:07,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:42:07,554 INFO L225 Difference]: With dead ends: 762 [2024-11-09 05:42:07,554 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 05:42:07,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1421 GetRequests, 1403 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=311, Unknown=1, NotChecked=0, Total=380 [2024-11-09 05:42:07,556 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 46 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:42:07,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 19 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:42:07,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 05:42:07,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 05:42:07,557 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) [2024-11-09 05:42:07,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 05:42:07,558 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 473 [2024-11-09 05:42:07,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:42:07,559 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 05:42:07,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-11-09 05:42:07,559 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 05:42:07,559 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 05:42:07,563 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2024-11-09 05:42:07,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2024-11-09 05:42:07,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2024-11-09 05:42:07,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2024-11-09 05:42:07,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2024-11-09 05:42:07,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2024-11-09 05:42:07,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2024-11-09 05:42:07,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2024-11-09 05:42:07,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2024-11-09 05:42:07,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2024-11-09 05:42:07,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2024-11-09 05:42:07,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2024-11-09 05:42:07,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 05:42:07,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 05:42:07,771 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:42:07,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 05:42:18,191 WARN L286 SmtUtils]: Spent 8.75s on a formula simplification. DAG size of input: 398 DAG size of output: 347 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-09 05:42:20,266 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:42:20,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:42:20 BoogieIcfgContainer [2024-11-09 05:42:20,285 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:42:20,286 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:42:20,286 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:42:20,286 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:42:20,286 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:41:12" (3/4) ... [2024-11-09 05:42:20,289 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 05:42:20,298 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 05:42:20,300 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 05:42:20,300 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 05:42:20,301 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 05:42:20,407 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:42:20,408 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 05:42:20,408 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:42:20,409 INFO L158 Benchmark]: Toolchain (without parser) took 68886.84ms. Allocated memory was 136.3MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 98.0MB in the beginning and 798.2MB in the end (delta: -700.2MB). Peak memory consumption was 575.8MB. Max. memory is 16.1GB. [2024-11-09 05:42:20,409 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:42:20,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.01ms. Allocated memory is still 136.3MB. Free memory was 98.0MB in the beginning and 85.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 05:42:20,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.13ms. Allocated memory is still 136.3MB. Free memory was 85.4MB in the beginning and 83.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:42:20,411 INFO L158 Benchmark]: Boogie Preprocessor took 30.01ms. Allocated memory is still 136.3MB. Free memory was 83.8MB in the beginning and 82.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:42:20,411 INFO L158 Benchmark]: RCFGBuilder took 666.04ms. Allocated memory was 136.3MB in the beginning and 182.5MB in the end (delta: 46.1MB). Free memory was 82.4MB in the beginning and 150.4MB in the end (delta: -68.0MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2024-11-09 05:42:20,412 INFO L158 Benchmark]: TraceAbstraction took 67583.39ms. Allocated memory was 182.5MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 150.4MB in the beginning and 803.4MB in the end (delta: -653.0MB). Peak memory consumption was 858.3MB. Max. memory is 16.1GB. [2024-11-09 05:42:20,412 INFO L158 Benchmark]: Witness Printer took 122.41ms. Allocated memory is still 1.4GB. Free memory was 803.4MB in the beginning and 798.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 05:42:20,415 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.01ms. Allocated memory is still 136.3MB. Free memory was 98.0MB in the beginning and 85.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.13ms. Allocated memory is still 136.3MB. Free memory was 85.4MB in the beginning and 83.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.01ms. Allocated memory is still 136.3MB. Free memory was 83.8MB in the beginning and 82.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 666.04ms. Allocated memory was 136.3MB in the beginning and 182.5MB in the end (delta: 46.1MB). Free memory was 82.4MB in the beginning and 150.4MB in the end (delta: -68.0MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 67583.39ms. Allocated memory was 182.5MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 150.4MB in the beginning and 803.4MB in the end (delta: -653.0MB). Peak memory consumption was 858.3MB. Max. memory is 16.1GB. * Witness Printer took 122.41ms. Allocated memory is still 1.4GB. Free memory was 803.4MB in the beginning and 798.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * 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: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: 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, 40 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 55.0s, OverallIterations: 13, TraceHistogramMax: 110, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 2291 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2291 mSDsluCounter, 650 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 378 mSDsCounter, 438 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1304 IncrementalHoareTripleChecker+Invalid, 1748 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 438 mSolverCounterUnsat, 272 mSDtfsCounter, 1304 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2791 GetRequests, 2526 SyntacticMatches, 0 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4762 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=762occurred in iteration=12, InterpolantAutomatonStates: 150, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 430 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 1818 NumberOfCodeBlocks, 1353 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2661 ConstructedInterpolants, 0 QuantifiedInterpolants, 7361 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1280 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 28 InterpolantComputations, 6 PerfectInterpolantSequences, 59913/85457 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: OVERALL_TIME: 7.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 52, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 467, TOOLS_POST_TIME: 6.2s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 467, TOOLS_QUANTIFIERELIM_TIME: 6.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 680, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 38, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 49, DOMAIN_WIDEN_TIME: 0.4s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 78, DOMAIN_ISSUBSETEQ_TIME: 0.4s, DOMAIN_ISBOTTOM_APPLICATIONS: 52, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 29, LOOP_SUMMARIZER_CACHE_MISSES: 29, LOOP_SUMMARIZER_OVERALL_TIME: 6.9s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 6.9s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 78, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1284, DAG_COMPRESSION_RETAINED_NODES: 135, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((((i <= 999) && (0 <= j)) && (k == 0)) && (0 <= i)) && (j <= 999)) && (n == 1000)) || (((((((k <= 2147483647) && (i <= 999)) && (0 <= j)) && (0 <= i)) && (1 <= k)) && (j <= 999)) && (n == 1000))) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: (((((((i <= 999) && (0 <= j)) && (k == 0)) && (0 <= i)) && (j <= 999)) && (n == 1000)) || (((((((k <= 2147483647) && (i <= 999)) && (0 <= j)) && (0 <= i)) && (1 <= k)) && (j <= 999)) && (n == 1000))) - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (((i <= 2147483647) && (0 <= i)) && (n == 1000)) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (((((i <= 999) && (0 <= j)) && (0 <= i)) && (j <= 2147483646)) && (n == 1000)) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((((i <= 999) && (0 <= j)) && (0 <= i)) && (j <= 2147483646)) && (n == 1000)) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((i <= 2147483647) && (0 <= i)) && (n == 1000)) RESULT: Ultimate proved your program to be correct! [2024-11-09 05:42:20,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e9e3059-142b-487c-9935-365dbf36098a/bin/utaipan-verify-YMUCfTKeje/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