./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/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_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/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 64bit --witnessprinter.graph.data.programhash 041376d57652038a5d4ee57a004231861ab6efac51c30f8b6c72783e60a27529 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:23:34,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:23:34,631 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 06:23:34,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:23:34,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:23:34,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:23:34,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:23:34,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:23:34,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:23:34,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:23:34,688 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:23:34,689 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:23:34,690 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:23:34,693 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:23:34,694 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:23:34,694 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:23:34,695 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:23:34,696 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:23:34,696 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:23:34,697 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:23:34,697 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:23:34,703 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:23:34,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:23:34,705 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:23:34,706 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:23:34,706 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:23:34,707 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:23:34,707 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:23:34,708 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:23:34,708 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:23:34,709 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:23:34,711 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:23:34,711 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:23:34,711 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:23:34,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:23:34,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:23:34,713 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:23:34,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:23:34,714 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:23:34,714 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:23:34,714 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:23:34,715 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:23:34,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:23:34,715 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:23:34,716 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:23:34,716 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:23:34,716 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_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 041376d57652038a5d4ee57a004231861ab6efac51c30f8b6c72783e60a27529 [2024-11-09 06:23:35,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:23:35,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:23:35,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:23:35,099 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:23:35,101 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:23:35,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca-2.i Unable to find full path for "g++" [2024-11-09 06:23:37,627 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:23:37,918 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:23:37,919 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca-2.i [2024-11-09 06:23:37,943 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/data/f827d4787/5c7d0ad9f4c548afb69becfab391f6b0/FLAGf70d32410 [2024-11-09 06:23:37,959 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/data/f827d4787/5c7d0ad9f4c548afb69becfab391f6b0 [2024-11-09 06:23:37,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:23:37,964 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:23:37,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:23:37,966 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:23:37,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:23:37,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:23:37" (1/1) ... [2024-11-09 06:23:37,981 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f0f889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:37, skipping insertion in model container [2024-11-09 06:23:37,981 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:23:37" (1/1) ... [2024-11-09 06:23:38,049 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:23:38,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:23:38,421 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:23:38,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:23:38,527 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:23:38,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:38 WrapperNode [2024-11-09 06:23:38,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:23:38,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:23:38,529 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:23:38,529 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:23:38,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:38" (1/1) ... [2024-11-09 06:23:38,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:38" (1/1) ... [2024-11-09 06:23:38,585 INFO L138 Inliner]: procedures = 110, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2024-11-09 06:23:38,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:23:38,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:23:38,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:23:38,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:23:38,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:38" (1/1) ... [2024-11-09 06:23:38,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:38" (1/1) ... [2024-11-09 06:23:38,602 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:38" (1/1) ... [2024-11-09 06:23:38,603 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:38" (1/1) ... [2024-11-09 06:23:38,609 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:38" (1/1) ... [2024-11-09 06:23:38,613 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:38" (1/1) ... [2024-11-09 06:23:38,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:38" (1/1) ... [2024-11-09 06:23:38,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:38" (1/1) ... [2024-11-09 06:23:38,618 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:23:38,619 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:23:38,619 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:23:38,619 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:23:38,620 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:38" (1/1) ... [2024-11-09 06:23:38,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:23:38,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:23:38,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:23:38,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:23:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:23:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:23:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:23:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:23:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:23:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:23:38,823 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:23:38,826 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:23:38,960 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-09 06:23:38,961 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:23:38,992 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:23:38,992 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 06:23:38,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:23:38 BoogieIcfgContainer [2024-11-09 06:23:38,993 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:23:38,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:23:38,996 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:23:39,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:23:39,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:23:37" (1/3) ... [2024-11-09 06:23:39,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ab622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:23:39, skipping insertion in model container [2024-11-09 06:23:39,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:38" (2/3) ... [2024-11-09 06:23:39,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ab622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:23:39, skipping insertion in model container [2024-11-09 06:23:39,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:23:38" (3/3) ... [2024-11-09 06:23:39,004 INFO L112 eAbstractionObserver]: Analyzing ICFG Urban-2013WST-Fig2-alloca-2.i [2024-11-09 06:23:39,028 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:23:39,028 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 06:23:39,097 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:23:39,105 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;@568d53b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:23:39,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 06:23:39,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 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 06:23:39,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 06:23:39,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:39,118 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 06:23:39,118 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 06:23:39,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:39,125 INFO L85 PathProgramCache]: Analyzing trace with hash 2038564431, now seen corresponding path program 1 times [2024-11-09 06:23:39,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:39,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621538198] [2024-11-09 06:23:39,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:39,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:39,399 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 06:23:39,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:39,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621538198] [2024-11-09 06:23:39,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621538198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:39,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:39,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:23:39,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474499766] [2024-11-09 06:23:39,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:39,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:23:39,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:39,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:23:39,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:23:39,444 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 06:23:39,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:39,471 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2024-11-09 06:23:39,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:23:39,475 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2024-11-09 06:23:39,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:39,484 INFO L225 Difference]: With dead ends: 31 [2024-11-09 06:23:39,484 INFO L226 Difference]: Without dead ends: 14 [2024-11-09 06:23:39,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:23:39,493 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:39,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:23:39,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-09 06:23:39,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-09 06:23:39,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.5) internal successors, (15), 13 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 06:23:39,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-11-09 06:23:39,541 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 6 [2024-11-09 06:23:39,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:39,542 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-09 06:23:39,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 06:23:39,543 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-09 06:23:39,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 06:23:39,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:39,544 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 06:23:39,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:23:39,545 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 06:23:39,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:39,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2038553604, now seen corresponding path program 1 times [2024-11-09 06:23:39,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:39,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912743366] [2024-11-09 06:23:39,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:39,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:39,821 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 06:23:39,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:39,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912743366] [2024-11-09 06:23:39,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912743366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:39,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:39,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:23:39,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281362444] [2024-11-09 06:23:39,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:39,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:23:39,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:39,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:23:39,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:23:39,826 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 06:23:39,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:39,883 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2024-11-09 06:23:39,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:23:39,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2024-11-09 06:23:39,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:39,886 INFO L225 Difference]: With dead ends: 14 [2024-11-09 06:23:39,886 INFO L226 Difference]: Without dead ends: 13 [2024-11-09 06:23:39,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:23:39,888 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:39,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 19 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:23:39,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-09 06:23:39,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-09 06:23:39,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 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 06:23:39,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-11-09 06:23:39,899 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 6 [2024-11-09 06:23:39,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:39,900 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-11-09 06:23:39,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 06:23:39,902 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-09 06:23:39,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 06:23:39,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:39,903 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:23:39,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:23:39,903 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 06:23:39,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:39,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1229349392, now seen corresponding path program 1 times [2024-11-09 06:23:39,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:39,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421767072] [2024-11-09 06:23:39,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:39,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:40,113 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 06:23:40,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:40,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421767072] [2024-11-09 06:23:40,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421767072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:40,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:40,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:23:40,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552024122] [2024-11-09 06:23:40,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:40,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:23:40,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:40,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:23:40,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:23:40,119 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:40,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:40,177 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2024-11-09 06:23:40,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:23:40,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 06:23:40,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:40,179 INFO L225 Difference]: With dead ends: 30 [2024-11-09 06:23:40,179 INFO L226 Difference]: Without dead ends: 18 [2024-11-09 06:23:40,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:23:40,182 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:40,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 25 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:23:40,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-09 06:23:40,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2024-11-09 06:23:40,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 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 06:23:40,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2024-11-09 06:23:40,189 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2024-11-09 06:23:40,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:40,189 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2024-11-09 06:23:40,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:40,190 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2024-11-09 06:23:40,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 06:23:40,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:40,191 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:23:40,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:23:40,192 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 06:23:40,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:40,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1229347662, now seen corresponding path program 1 times [2024-11-09 06:23:40,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:40,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537208978] [2024-11-09 06:23:40,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:40,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:40,447 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 06:23:40,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:40,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537208978] [2024-11-09 06:23:40,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537208978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:40,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:40,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:23:40,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082232925] [2024-11-09 06:23:40,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:40,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:23:40,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:40,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:23:40,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:23:40,451 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:40,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:40,525 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-11-09 06:23:40,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:23:40,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 06:23:40,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:40,527 INFO L225 Difference]: With dead ends: 18 [2024-11-09 06:23:40,527 INFO L226 Difference]: Without dead ends: 17 [2024-11-09 06:23:40,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:23:40,529 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:40,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 27 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:23:40,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-09 06:23:40,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-09 06:23:40,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 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 06:23:40,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2024-11-09 06:23:40,542 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2024-11-09 06:23:40,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:40,543 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2024-11-09 06:23:40,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:40,543 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2024-11-09 06:23:40,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 06:23:40,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:40,544 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:23:40,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:23:40,545 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 06:23:40,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:40,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1020711977, now seen corresponding path program 1 times [2024-11-09 06:23:40,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:40,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835189652] [2024-11-09 06:23:40,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:40,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:40,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:23:40,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:40,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835189652] [2024-11-09 06:23:40,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835189652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:23:40,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667425638] [2024-11-09 06:23:40,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:40,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:23:40,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:23:40,919 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:23:40,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:23:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:41,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:23:41,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:23:41,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:23:41,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-09 06:23:41,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 06:23:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:23:41,252 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:23:41,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:23:41,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667425638] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:23:41,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [248472559] [2024-11-09 06:23:41,388 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-09 06:23:41,388 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:23:41,392 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:23:41,399 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:23:41,400 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:23:43,065 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:23:44,995 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '289#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_#t~malloc3#1.base|) (<= (+ 2147483650 (select (select |#memory_int| |ULTIMATE.start_main_~x1~0#1.base|) 0)) 0) (<= 2 |ULTIMATE.start_main_~x1~0#1.base|) (= |ULTIMATE.start_main_~x1~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_#t~mem7#1_21| Int)) (and (<= |v_ULTIMATE.start_main_#t~mem7#1_21| 1) (exists ((|v_#memory_int_27| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_27| |ULTIMATE.start_main_~x2~0#1.base| (store (select |v_#memory_int_27| |ULTIMATE.start_main_~x2~0#1.base|) 0 (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0))))) (<= 0 (+ 2147483648 (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0))) (= |v_ULTIMATE.start_main_#t~mem7#1_21| (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0)))) (= |ULTIMATE.start_main_~x2~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_#t~malloc2#1.base|) (<= 2 |ULTIMATE.start_main_~x2~0#1.base|))' at error location [2024-11-09 06:23:44,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:23:44,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:23:44,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2024-11-09 06:23:44,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487500640] [2024-11-09 06:23:44,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:23:44,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:23:44,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:44,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:23:44,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-11-09 06:23:45,000 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 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 06:23:45,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:45,203 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2024-11-09 06:23:45,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:23:45,204 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 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 11 [2024-11-09 06:23:45,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:45,205 INFO L225 Difference]: With dead ends: 43 [2024-11-09 06:23:45,205 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 06:23:45,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2024-11-09 06:23:45,207 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 13 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:45,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 48 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:23:45,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 06:23:45,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2024-11-09 06:23:45,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 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 06:23:45,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2024-11-09 06:23:45,219 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 11 [2024-11-09 06:23:45,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:45,219 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2024-11-09 06:23:45,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 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 06:23:45,220 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2024-11-09 06:23:45,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 06:23:45,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:45,221 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 06:23:45,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:23:45,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:23:45,424 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 06:23:45,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:45,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1020710247, now seen corresponding path program 1 times [2024-11-09 06:23:45,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:45,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367402662] [2024-11-09 06:23:45,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:45,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:23:45,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:45,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367402662] [2024-11-09 06:23:45,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367402662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:45,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:45,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:23:45,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749786111] [2024-11-09 06:23:45,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:45,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:23:45,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:45,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:23:45,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:23:45,702 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:45,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:45,796 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2024-11-09 06:23:45,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:23:45,797 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 06:23:45,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:45,798 INFO L225 Difference]: With dead ends: 23 [2024-11-09 06:23:45,799 INFO L226 Difference]: Without dead ends: 22 [2024-11-09 06:23:45,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:23:45,801 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:45,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 16 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:23:45,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-09 06:23:45,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-09 06:23:45,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 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 06:23:45,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2024-11-09 06:23:45,806 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 11 [2024-11-09 06:23:45,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:45,807 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2024-11-09 06:23:45,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:45,808 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2024-11-09 06:23:45,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 06:23:45,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:45,809 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-09 06:23:45,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:23:45,809 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 06:23:45,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:45,810 INFO L85 PathProgramCache]: Analyzing trace with hash 2014586149, now seen corresponding path program 2 times [2024-11-09 06:23:45,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:45,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69633185] [2024-11-09 06:23:45,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:45,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:46,315 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:23:46,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:46,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69633185] [2024-11-09 06:23:46,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69633185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:23:46,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803433468] [2024-11-09 06:23:46,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:23:46,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:23:46,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:23:46,319 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:23:46,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:23:46,416 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 06:23:46,417 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:23:46,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:23:46,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:23:46,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:23:46,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-09 06:23:46,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-09 06:23:46,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-09 06:23:46,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 06:23:46,626 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:23:46,626 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:23:46,830 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:23:46,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803433468] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:23:46,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [12000303] [2024-11-09 06:23:46,833 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-09 06:23:46,834 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:23:46,834 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:23:46,835 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:23:46,835 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:23:47,805 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:23:49,392 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '585#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_#t~malloc3#1.base|) (<= (+ 2147483650 (select (select |#memory_int| |ULTIMATE.start_main_~x1~0#1.base|) 0)) 0) (<= 2 |ULTIMATE.start_main_~x1~0#1.base|) (= |ULTIMATE.start_main_~x1~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_#t~mem7#1_32| Int)) (and (= |v_ULTIMATE.start_main_#t~mem7#1_32| (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0)) (<= |v_ULTIMATE.start_main_#t~mem7#1_32| 1) (exists ((|v_#memory_int_41| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_41| |ULTIMATE.start_main_~x2~0#1.base| (store (select |v_#memory_int_41| |ULTIMATE.start_main_~x2~0#1.base|) 0 (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0))))) (<= 0 (+ 2147483648 (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0))))) (= |ULTIMATE.start_main_~x2~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_#t~malloc2#1.base|) (<= 2 |ULTIMATE.start_main_~x2~0#1.base|))' at error location [2024-11-09 06:23:49,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:23:49,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:23:49,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 25 [2024-11-09 06:23:49,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499549202] [2024-11-09 06:23:49,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:23:49,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 06:23:49,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:49,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 06:23:49,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=923, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 06:23:49,396 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 25 states, 25 states have (on average 1.88) internal successors, (47), 25 states have internal predecessors, (47), 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 06:23:49,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:49,735 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2024-11-09 06:23:49,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 06:23:49,736 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.88) internal successors, (47), 25 states have internal predecessors, (47), 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 19 [2024-11-09 06:23:49,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:49,737 INFO L225 Difference]: With dead ends: 61 [2024-11-09 06:23:49,737 INFO L226 Difference]: Without dead ends: 40 [2024-11-09 06:23:49,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=298, Invalid=1424, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 06:23:49,741 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 14 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:49,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 64 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:23:49,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-09 06:23:49,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2024-11-09 06:23:49,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 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 06:23:49,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2024-11-09 06:23:49,752 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 19 [2024-11-09 06:23:49,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:49,752 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2024-11-09 06:23:49,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.88) internal successors, (47), 25 states have internal predecessors, (47), 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 06:23:49,755 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2024-11-09 06:23:49,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 06:23:49,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:49,757 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 1, 1, 1, 1, 1, 1] [2024-11-09 06:23:49,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 06:23:49,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:23:49,958 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 06:23:49,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:49,958 INFO L85 PathProgramCache]: Analyzing trace with hash -848654911, now seen corresponding path program 3 times [2024-11-09 06:23:49,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:49,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788998133] [2024-11-09 06:23:49,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:49,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:51,116 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:23:51,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:51,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788998133] [2024-11-09 06:23:51,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788998133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:23:51,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249616747] [2024-11-09 06:23:51,118 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:23:51,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:23:51,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:23:51,120 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:23:51,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:23:51,222 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:23:51,223 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:23:51,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 06:23:51,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:23:51,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:23:51,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-09 06:23:51,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-09 06:23:51,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-09 06:23:51,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-09 06:23:51,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-09 06:23:51,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-09 06:23:51,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-09 06:23:51,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 06:23:51,646 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:23:51,646 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:23:51,953 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:23:51,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249616747] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:23:51,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2144837659] [2024-11-09 06:23:51,956 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-09 06:23:51,956 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:23:51,957 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:23:51,957 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:23:51,957 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:23:52,793 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:23:54,630 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '972#(and (exists ((|v_ULTIMATE.start_main_#t~mem7#1_47| Int)) (and (exists ((|v_#memory_int_63| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_63| |ULTIMATE.start_main_~x2~0#1.base| (store (select |v_#memory_int_63| |ULTIMATE.start_main_~x2~0#1.base|) 0 (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0))))) (= |v_ULTIMATE.start_main_#t~mem7#1_47| (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0)) (<= |v_ULTIMATE.start_main_#t~mem7#1_47| 1) (<= 0 (+ 2147483648 (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0))))) (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_#t~malloc3#1.base|) (<= (+ 2147483650 (select (select |#memory_int| |ULTIMATE.start_main_~x1~0#1.base|) 0)) 0) (<= 2 |ULTIMATE.start_main_~x1~0#1.base|) (= |ULTIMATE.start_main_~x1~0#1.offset| 0) (= |ULTIMATE.start_main_~x2~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_#t~malloc2#1.base|) (<= 2 |ULTIMATE.start_main_~x2~0#1.base|))' at error location [2024-11-09 06:23:54,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:23:54,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:23:54,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 18, 18] total 36 [2024-11-09 06:23:54,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406232782] [2024-11-09 06:23:54,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:23:54,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-09 06:23:54,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:54,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-09 06:23:54,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=1631, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 06:23:54,635 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand has 36 states, 36 states have (on average 2.138888888888889) internal successors, (77), 36 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 06:23:54,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:54,925 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2024-11-09 06:23:54,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 06:23:54,926 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.138888888888889) internal successors, (77), 36 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 35 [2024-11-09 06:23:54,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:54,927 INFO L225 Difference]: With dead ends: 85 [2024-11-09 06:23:54,927 INFO L226 Difference]: Without dead ends: 48 [2024-11-09 06:23:54,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 72 SyntacticMatches, 13 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1524 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=414, Invalid=1938, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 06:23:54,930 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:54,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 61 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:23:54,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-09 06:23:54,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2024-11-09 06:23:54,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 45 states have internal predecessors, (47), 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 06:23:54,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2024-11-09 06:23:54,944 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 35 [2024-11-09 06:23:54,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:54,945 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2024-11-09 06:23:54,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.138888888888889) internal successors, (77), 36 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 06:23:54,945 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2024-11-09 06:23:54,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 06:23:54,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:54,947 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 1, 1, 1, 1, 1, 1] [2024-11-09 06:23:54,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:23:55,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:23:55,151 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 06:23:55,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:55,152 INFO L85 PathProgramCache]: Analyzing trace with hash 636615951, now seen corresponding path program 4 times [2024-11-09 06:23:55,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:55,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680661692] [2024-11-09 06:23:55,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:55,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:55,627 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-09 06:23:55,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:55,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680661692] [2024-11-09 06:23:55,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680661692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:23:55,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611526771] [2024-11-09 06:23:55,628 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 06:23:55,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:23:55,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:23:55,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:23:55,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:23:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:55,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 06:23:55,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:23:55,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-11-09 06:23:55,790 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:23:55,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2024-11-09 06:23:55,867 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:23:55,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2024-11-09 06:23:55,950 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:23:55,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2024-11-09 06:23:56,029 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:23:56,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2024-11-09 06:23:56,105 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:23:56,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2024-11-09 06:23:56,189 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:23:56,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2024-11-09 06:23:56,275 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:23:56,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2024-11-09 06:23:56,361 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:23:56,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2024-11-09 06:23:56,432 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:23:56,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2024-11-09 06:23:56,509 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:23:56,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2024-11-09 06:23:56,645 INFO L349 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size [2024-11-09 06:23:56,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 37 [2024-11-09 06:23:56,775 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:23:56,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2024-11-09 06:23:56,794 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-09 06:23:56,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:23:56,966 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:23:56,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 27 [2024-11-09 06:23:57,285 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 1 proven. 49 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 06:23:57,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611526771] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:23:57,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [790087894] [2024-11-09 06:23:57,287 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-09 06:23:57,288 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:23:57,288 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:23:57,288 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:23:57,288 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:23:57,895 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:24:03,284 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1418#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_#t~malloc3#1.base|) (<= (+ 2147483650 (select (select |#memory_int| |ULTIMATE.start_main_~x1~0#1.base|) 0)) 0) (<= 2 |ULTIMATE.start_main_~x1~0#1.base|) (exists ((|v_ULTIMATE.start_main_#t~mem7#1_64| Int)) (and (exists ((|v_#memory_int_90| (Array Int (Array Int Int)))) (= (store |v_#memory_int_90| |ULTIMATE.start_main_~x2~0#1.base| (store (select |v_#memory_int_90| |ULTIMATE.start_main_~x2~0#1.base|) 0 (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0))) |#memory_int|)) (<= |v_ULTIMATE.start_main_#t~mem7#1_64| 1) (= |v_ULTIMATE.start_main_#t~mem7#1_64| (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0)) (<= 0 (+ 2147483648 (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0))))) (= |ULTIMATE.start_main_~x1~0#1.offset| 0) (= |ULTIMATE.start_main_~x2~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_#t~malloc2#1.base|) (<= 2 |ULTIMATE.start_main_~x2~0#1.base|))' at error location [2024-11-09 06:24:03,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:24:03,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:24:03,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 6] total 13 [2024-11-09 06:24:03,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593820370] [2024-11-09 06:24:03,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:24:03,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 06:24:03,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:03,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 06:24:03,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=441, Unknown=5, NotChecked=0, Total=552 [2024-11-09 06:24:03,286 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 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 06:24:05,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:24:11,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:24:11,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:11,526 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2024-11-09 06:24:11,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:24:11,526 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 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 43 [2024-11-09 06:24:11,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:11,527 INFO L225 Difference]: With dead ends: 46 [2024-11-09 06:24:11,527 INFO L226 Difference]: Without dead ends: 45 [2024-11-09 06:24:11,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=173, Invalid=632, Unknown=7, NotChecked=0, Total=812 [2024-11-09 06:24:11,528 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:11,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 2 Unknown, 0 Unchecked, 4.1s Time] [2024-11-09 06:24:11,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-09 06:24:11,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-09 06:24:11,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.0454545454545454) internal successors, (46), 44 states have internal predecessors, (46), 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 06:24:11,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2024-11-09 06:24:11,552 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 43 [2024-11-09 06:24:11,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:11,553 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2024-11-09 06:24:11,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 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 06:24:11,553 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2024-11-09 06:24:11,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:24:11,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:11,555 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:24:11,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 06:24:11,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:24:11,759 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 06:24:11,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:11,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1739741937, now seen corresponding path program 1 times [2024-11-09 06:24:11,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:11,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216639909] [2024-11-09 06:24:11,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:11,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:12,217 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-09 06:24:12,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:12,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216639909] [2024-11-09 06:24:12,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216639909] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:24:12,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469898402] [2024-11-09 06:24:12,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:12,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:24:12,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:24:12,220 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:24:12,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:24:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:12,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 06:24:12,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:24:12,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-11-09 06:24:12,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:24:12,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-09 06:24:12,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:24:12,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:24:12,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:24:12,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:24:12,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:24:12,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:24:12,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:24:12,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:24:12,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:24:12,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:24:12,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 06:24:12,616 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:24:12,616 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:24:12,843 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:24:12,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469898402] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:24:12,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [276165726] [2024-11-09 06:24:12,846 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 06:24:12,847 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:24:12,847 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:24:12,848 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:24:12,848 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:24:13,697 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:24:15,385 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1820#(and (exists ((|v_ULTIMATE.start_main_#t~mem7#1_80| Int)) (and (exists ((|v_#memory_int_117| (Array Int (Array Int Int)))) (= (store |v_#memory_int_117| |ULTIMATE.start_main_~x2~0#1.base| (store (select |v_#memory_int_117| |ULTIMATE.start_main_~x2~0#1.base|) 0 (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0))) |#memory_int|)) (= |v_ULTIMATE.start_main_#t~mem7#1_80| (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0)) (<= 0 (+ 2147483648 (select (select |#memory_int| |ULTIMATE.start_main_~x2~0#1.base|) 0))) (<= |v_ULTIMATE.start_main_#t~mem7#1_80| 1))) (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_#t~malloc3#1.base|) (<= 2147483647 (select (select |#memory_int| |ULTIMATE.start_main_~x1~0#1.base|) 0)) (<= 2 |ULTIMATE.start_main_~x1~0#1.base|) (= |ULTIMATE.start_main_~x1~0#1.offset| 0) (= |ULTIMATE.start_main_~x2~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_#t~malloc2#1.base|) (<= 2 |ULTIMATE.start_main_~x2~0#1.base|))' at error location [2024-11-09 06:24:15,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:24:15,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:24:15,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 06:24:15,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551376883] [2024-11-09 06:24:15,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:24:15,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:24:15,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:15,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:24:15,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=381, Unknown=3, NotChecked=0, Total=462 [2024-11-09 06:24:15,388 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 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 06:24:15,460 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_323 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~x2~0#1.base| v_ArrVal_323) |c_ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset|) 2147483647)) (< (select (select |c_#memory_int| |c_ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset|) 2147483647)) is different from false [2024-11-09 06:24:15,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:15,463 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2024-11-09 06:24:15,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:24:15,463 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 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 44 [2024-11-09 06:24:15,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:15,464 INFO L225 Difference]: With dead ends: 46 [2024-11-09 06:24:15,464 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:24:15,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=91, Invalid=415, Unknown=4, NotChecked=42, Total=552 [2024-11-09 06:24:15,465 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:15,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 8 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 9 Unchecked, 0.0s Time] [2024-11-09 06:24:15,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:24:15,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:24:15,468 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 06:24:15,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:24:15,469 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2024-11-09 06:24:15,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:15,469 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:24:15,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 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 06:24:15,470 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:24:15,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:24:15,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-09 06:24:15,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-09 06:24:15,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-09 06:24:15,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-09 06:24:15,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 06:24:15,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:24:15,685 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1] [2024-11-09 06:24:15,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 06:24:15,909 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:24:15,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:24:15 BoogieIcfgContainer [2024-11-09 06:24:15,925 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:24:15,926 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:24:15,926 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:24:15,926 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:24:15,927 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:23:38" (3/4) ... [2024-11-09 06:24:15,930 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 06:24:15,939 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-09 06:24:15,940 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 06:24:15,940 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 06:24:15,940 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 06:24:16,049 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:24:16,049 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 06:24:16,050 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:24:16,050 INFO L158 Benchmark]: Toolchain (without parser) took 38086.70ms. Allocated memory was 148.9MB in the beginning and 281.0MB in the end (delta: 132.1MB). Free memory was 109.0MB in the beginning and 179.7MB in the end (delta: -70.7MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. [2024-11-09 06:24:16,050 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 148.9MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:24:16,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 562.80ms. Allocated memory is still 148.9MB. Free memory was 108.7MB in the beginning and 90.4MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 06:24:16,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.42ms. Allocated memory is still 148.9MB. Free memory was 90.4MB in the beginning and 88.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:24:16,051 INFO L158 Benchmark]: Boogie Preprocessor took 30.31ms. Allocated memory is still 148.9MB. Free memory was 88.5MB in the beginning and 87.4MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:24:16,052 INFO L158 Benchmark]: RCFGBuilder took 374.28ms. Allocated memory is still 148.9MB. Free memory was 87.4MB in the beginning and 75.7MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 06:24:16,052 INFO L158 Benchmark]: TraceAbstraction took 36929.15ms. Allocated memory was 148.9MB in the beginning and 281.0MB in the end (delta: 132.1MB). Free memory was 74.8MB in the beginning and 183.9MB in the end (delta: -109.1MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-11-09 06:24:16,052 INFO L158 Benchmark]: Witness Printer took 123.95ms. Allocated memory is still 281.0MB. Free memory was 183.9MB in the beginning and 179.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:24:16,057 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 148.9MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 562.80ms. Allocated memory is still 148.9MB. Free memory was 108.7MB in the beginning and 90.4MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.42ms. Allocated memory is still 148.9MB. Free memory was 90.4MB in the beginning and 88.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.31ms. Allocated memory is still 148.9MB. Free memory was 88.5MB in the beginning and 87.4MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 374.28ms. Allocated memory is still 148.9MB. Free memory was 87.4MB in the beginning and 75.7MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 36929.15ms. Allocated memory was 148.9MB in the beginning and 281.0MB in the end (delta: 132.1MB). Free memory was 74.8MB in the beginning and 183.9MB in the end (delta: -109.1MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Witness Printer took 123.95ms. Allocated memory is still 281.0MB. Free memory was 183.9MB in the beginning and 179.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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: 555]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 555]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 557]: 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, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 36.6s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 283 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 9 IncrementalHoareTripleChecker+Unchecked, 210 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 462 IncrementalHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 73 mSDtfsCounter, 462 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 565 GetRequests, 375 SyntacticMatches, 13 SemanticMatches, 177 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2768 ImplicationChecksByTransitivity, 18.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=8, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 11 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 341 NumberOfCodeBlocks, 341 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 473 ConstructedInterpolants, 79 QuantifiedInterpolants, 4859 SizeOfPredicates, 20 NumberOfNonLiveVariables, 595 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 855/1330 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 06:24:16,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72a0c955-4667-4ed2-ac6a-2ad5b4fe3165/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE