./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d570de8a468b2e5d7e18a67170da2d8f06202ccdf10baa0799e3c0763140866e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:32:10,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:32:11,035 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-13 23:32:11,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:32:11,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:32:11,079 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:32:11,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:32:11,080 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:32:11,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:32:11,081 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:32:11,081 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:32:11,081 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:32:11,081 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:32:11,081 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:32:11,081 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:32:11,081 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:32:11,081 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:32:11,081 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:32:11,082 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:32:11,082 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:32:11,082 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:32:11,082 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:32:11,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:32:11,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:32:11,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:32:11,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:32:11,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:32:11,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:32:11,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:32:11,083 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:32:11,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:32:11,083 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:32:11,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:32:11,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:32:11,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:32:11,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:32:11,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:32:11,084 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:32:11,084 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:32:11,084 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:32:11,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:32:11,084 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:32:11,085 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:32:11,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:32:11,086 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E 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 ! call(reach_error())) ) 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 -> d570de8a468b2e5d7e18a67170da2d8f06202ccdf10baa0799e3c0763140866e [2024-11-13 23:32:11,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:32:11,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:32:11,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:32:11,406 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:32:11,407 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:32:11,408 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c Unable to find full path for "g++" [2024-11-13 23:32:13,214 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:32:13,526 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:32:13,527 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c [2024-11-13 23:32:13,540 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/data/2c77e4a9e/49e32d951fc249169353326d2334349c/FLAGba6e7e4ca [2024-11-13 23:32:13,781 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/data/2c77e4a9e/49e32d951fc249169353326d2334349c [2024-11-13 23:32:13,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:32:13,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:32:13,786 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:32:13,786 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:32:13,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:32:13,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:32:13" (1/1) ... [2024-11-13 23:32:13,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37eab7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:13, skipping insertion in model container [2024-11-13 23:32:13,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:32:13" (1/1) ... [2024-11-13 23:32:13,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:32:14,015 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c[1259,1272] [2024-11-13 23:32:14,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:32:14,308 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:32:14,320 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c[1259,1272] [2024-11-13 23:32:14,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:32:14,501 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:32:14,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:14 WrapperNode [2024-11-13 23:32:14,503 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:32:14,504 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:32:14,504 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:32:14,504 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:32:14,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:14" (1/1) ... [2024-11-13 23:32:14,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:14" (1/1) ... [2024-11-13 23:32:14,924 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2238 [2024-11-13 23:32:14,924 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:32:14,925 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:32:14,925 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:32:14,925 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:32:14,934 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:14" (1/1) ... [2024-11-13 23:32:14,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:14" (1/1) ... [2024-11-13 23:32:14,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:14" (1/1) ... [2024-11-13 23:32:14,983 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:14" (1/1) ... [2024-11-13 23:32:15,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:14" (1/1) ... [2024-11-13 23:32:15,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:14" (1/1) ... [2024-11-13 23:32:15,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:14" (1/1) ... [2024-11-13 23:32:15,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:14" (1/1) ... [2024-11-13 23:32:15,294 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:32:15,295 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:32:15,295 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:32:15,295 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:32:15,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:14" (1/1) ... [2024-11-13 23:32:15,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:32:15,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:15,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:32:15,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:32:15,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:32:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:32:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:32:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:32:15,991 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:32:15,993 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:32:18,976 INFO L? ?]: Removed 1401 outVars from TransFormulas that were not future-live. [2024-11-13 23:32:18,977 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:32:23,341 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:32:23,342 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:32:23,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:32:23 BoogieIcfgContainer [2024-11-13 23:32:23,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:32:23,345 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:32:23,345 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:32:23,350 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:32:23,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:32:13" (1/3) ... [2024-11-13 23:32:23,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d121a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:32:23, skipping insertion in model container [2024-11-13 23:32:23,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:14" (2/3) ... [2024-11-13 23:32:23,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d121a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:32:23, skipping insertion in model container [2024-11-13 23:32:23,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:32:23" (3/3) ... [2024-11-13 23:32:23,352 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p12.c [2024-11-13 23:32:23,369 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:32:23,371 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vis_arrays_vsaR_p12.c that has 1 procedures, 7 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:32:23,430 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:32:23,445 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;@4623acf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:32:23,445 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:32:23,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:32:23,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 23:32:23,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:23,455 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-13 23:32:23,456 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:32:23,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:23,461 INFO L85 PathProgramCache]: Analyzing trace with hash 83149970, now seen corresponding path program 1 times [2024-11-13 23:32:23,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:23,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985207793] [2024-11-13 23:32:23,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:23,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:32:24,151 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:32:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:32:24,598 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-13 23:32:24,600 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 23:32:24,601 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 23:32:24,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:32:24,608 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 23:32:24,648 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:32:24,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:32:24 BoogieIcfgContainer [2024-11-13 23:32:24,654 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:32:24,655 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:32:24,655 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:32:24,655 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:32:24,656 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:32:23" (3/4) ... [2024-11-13 23:32:24,659 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:32:24,660 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:32:24,661 INFO L158 Benchmark]: Toolchain (without parser) took 10876.87ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 91.5MB in the beginning and 140.2MB in the end (delta: -48.7MB). Peak memory consumption was 146.9MB. Max. memory is 16.1GB. [2024-11-13 23:32:24,663 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:32:24,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 717.59ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 46.7MB in the end (delta: 44.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 23:32:24,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 420.47ms. Allocated memory is still 117.4MB. Free memory was 46.6MB in the beginning and 46.6MB in the end (delta: -18.4kB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2024-11-13 23:32:24,665 INFO L158 Benchmark]: Boogie Preprocessor took 369.26ms. Allocated memory is still 117.4MB. Free memory was 46.6MB in the beginning and 48.1MB in the end (delta: -1.4MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2024-11-13 23:32:24,666 INFO L158 Benchmark]: RCFGBuilder took 8047.32ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 48.1MB in the beginning and 101.2MB in the end (delta: -53.1MB). Peak memory consumption was 249.4MB. Max. memory is 16.1GB. [2024-11-13 23:32:24,666 INFO L158 Benchmark]: TraceAbstraction took 1309.40ms. Allocated memory is still 310.4MB. Free memory was 98.2MB in the beginning and 140.2MB in the end (delta: -42.0MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2024-11-13 23:32:24,666 INFO L158 Benchmark]: Witness Printer took 5.59ms. Allocated memory is still 310.4MB. Free memory was 140.2MB in the beginning and 140.2MB in the end (delta: 21.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:32:24,670 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 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 717.59ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 46.7MB in the end (delta: 44.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 420.47ms. Allocated memory is still 117.4MB. Free memory was 46.6MB in the beginning and 46.6MB in the end (delta: -18.4kB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 369.26ms. Allocated memory is still 117.4MB. Free memory was 46.6MB in the beginning and 48.1MB in the end (delta: -1.4MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. * RCFGBuilder took 8047.32ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 48.1MB in the beginning and 101.2MB in the end (delta: -53.1MB). Peak memory consumption was 249.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1309.40ms. Allocated memory is still 310.4MB. Free memory was 98.2MB in the beginning and 140.2MB in the end (delta: -42.0MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * Witness Printer took 5.59ms. Allocated memory is still 310.4MB. Free memory was 140.2MB in the beginning and 140.2MB in the end (delta: 21.6kB). There was no memory consumed. 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 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 152, overapproximation of bitwiseAnd at line 83, overapproximation of bitwiseAnd at line 159. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 5); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (5 - 1); [L32] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 12); [L33] const SORT_5 msb_SORT_5 = (SORT_5)1 << (12 - 1); [L35] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 3); [L36] const SORT_7 msb_SORT_7 = (SORT_7)1 << (3 - 1); [L38] const SORT_26 mask_SORT_26 = (SORT_26)-1 >> (sizeof(SORT_26) * 8 - 2); [L39] const SORT_26 msb_SORT_26 = (SORT_26)1 << (2 - 1); [L41] const SORT_108 mask_SORT_108 = (SORT_108)-1 >> (sizeof(SORT_108) * 8 - 4); [L42] const SORT_108 msb_SORT_108 = (SORT_108)1 << (4 - 1); [L44] const SORT_165 mask_SORT_165 = (SORT_165)-1 >> (sizeof(SORT_165) * 8 - 32); [L45] const SORT_165 msb_SORT_165 = (SORT_165)1 << (32 - 1); [L47] const SORT_7 var_8 = 0; [L48] const SORT_3 var_15 = 0; [L49] const SORT_1 var_41 = 1; [L50] const SORT_1 var_51 = 0; [L51] const SORT_5 var_54 = 0; [L52] const SORT_7 var_68 = 2; [L53] const SORT_7 var_72 = 1; [L54] const SORT_7 var_77 = 4; [L55] const SORT_7 var_79 = 5; [L56] const SORT_7 var_83 = 3; [L57] const SORT_3 var_95 = 2; [L58] const SORT_7 var_125 = 7; [L59] const SORT_7 var_130 = 6; [L60] const SORT_165 var_167 = 0; [L61] const SORT_3 var_197 = 31; [L63] SORT_1 input_2; [L64] SORT_3 input_4; [L65] SORT_5 input_6; [L66] SORT_3 input_186; [L67] SORT_3 input_187; [L68] SORT_3 input_188; [L69] SORT_3 input_196; [L70] SORT_3 input_206; [L71] SORT_3 input_207; [L72] SORT_3 input_208; [L73] SORT_3 input_211; [L74] SORT_3 input_230; [L75] SORT_3 input_231; [L76] SORT_3 input_232; [L77] SORT_3 input_235; [L78] SORT_3 input_237; [L79] SORT_26 input_251; [L80] SORT_26 input_252; [L81] SORT_26 input_253; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_7 [L83] SORT_7 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L84] SORT_3 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L85] SORT_3 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L86] SORT_3 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L87] SORT_3 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L88] SORT_3 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L89] SORT_1 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] EXPR __VERIFIER_nondet_ushort() & mask_SORT_5 [L90] SORT_5 state_55 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L91] SORT_3 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L92] SORT_3 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L93] SORT_3 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L94] SORT_3 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L95] SORT_3 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L97] SORT_7 init_10_arg_1 = var_8; [L98] state_9 = init_10_arg_1 [L99] SORT_3 init_17_arg_1 = var_15; [L100] state_16 = init_17_arg_1 [L101] SORT_3 init_20_arg_1 = var_15; [L102] state_19 = init_20_arg_1 [L103] SORT_3 init_46_arg_1 = var_15; [L104] state_45 = init_46_arg_1 [L105] SORT_3 init_48_arg_1 = var_15; [L106] state_47 = init_48_arg_1 [L107] SORT_3 init_50_arg_1 = var_15; [L108] state_49 = init_50_arg_1 [L109] SORT_1 init_53_arg_1 = var_51; [L110] state_52 = init_53_arg_1 [L111] SORT_5 init_56_arg_1 = var_54; [L112] state_55 = init_56_arg_1 [L113] SORT_3 init_58_arg_1 = var_15; [L114] state_57 = init_58_arg_1 [L115] SORT_3 init_60_arg_1 = var_15; [L116] state_59 = init_60_arg_1 [L117] SORT_3 init_62_arg_1 = var_15; [L118] state_61 = init_62_arg_1 [L119] SORT_3 init_64_arg_1 = var_15; [L120] state_63 = init_64_arg_1 [L121] SORT_3 init_66_arg_1 = var_15; [L122] state_65 = init_66_arg_1 VAL [mask_SORT_108=15, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_3=31, mask_SORT_7=7, state_16=0, state_19=0, state_45=0, state_47=0, state_49=0, state_52=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_9=0, var_125=7, var_130=6, var_15=0, var_167=0, var_197=31, var_41=1, var_51=0, var_68=2, var_72=1, var_77=4, var_79=5, var_83=3, var_8=0, var_95=2] [L125] input_2 = __VERIFIER_nondet_uchar() [L126] input_4 = __VERIFIER_nondet_uchar() [L127] input_6 = __VERIFIER_nondet_ushort() [L128] input_186 = __VERIFIER_nondet_uchar() [L129] input_187 = __VERIFIER_nondet_uchar() [L130] input_188 = __VERIFIER_nondet_uchar() [L131] input_196 = __VERIFIER_nondet_uchar() [L132] input_206 = __VERIFIER_nondet_uchar() [L133] input_207 = __VERIFIER_nondet_uchar() [L134] input_208 = __VERIFIER_nondet_uchar() [L135] input_211 = __VERIFIER_nondet_uchar() [L136] input_230 = __VERIFIER_nondet_uchar() [L137] input_231 = __VERIFIER_nondet_uchar() [L138] input_232 = __VERIFIER_nondet_uchar() [L139] input_235 = __VERIFIER_nondet_uchar() [L140] input_237 = __VERIFIER_nondet_uchar() [L141] input_251 = __VERIFIER_nondet_uchar() [L142] input_252 = __VERIFIER_nondet_uchar() [L143] input_253 = __VERIFIER_nondet_uchar() [L146] SORT_7 var_11_arg_0 = state_9; [L147] SORT_1 var_11 = var_11_arg_0 >> 0; [L148] SORT_7 var_12_arg_0 = state_9; [L149] SORT_1 var_12 = var_12_arg_0 >> 1; [L150] SORT_1 var_13_arg_0 = var_11; [L151] SORT_1 var_13_arg_1 = var_12; [L152] EXPR var_13_arg_0 | var_13_arg_1 [L152] SORT_1 var_13 = var_13_arg_0 | var_13_arg_1; [L153] SORT_1 var_14_arg_0 = var_13; [L154] SORT_1 var_14 = ~var_14_arg_0; [L155] SORT_3 var_18_arg_0 = state_16; [L156] SORT_1 var_18 = var_18_arg_0 >> 1; [L157] SORT_3 var_21_arg_0 = state_19; [L158] SORT_7 var_21 = var_21_arg_0 >> 2; [L159] EXPR var_21 & mask_SORT_7 [L159] var_21 = var_21 & mask_SORT_7 [L160] SORT_3 var_22_arg_0 = state_16; [L161] SORT_7 var_22 = var_22_arg_0 >> 2; [L162] EXPR var_22 & mask_SORT_7 [L162] var_22 = var_22 & mask_SORT_7 [L163] SORT_7 var_23_arg_0 = var_21; [L164] SORT_7 var_23_arg_1 = var_22; [L165] SORT_1 var_23 = var_23_arg_0 == var_23_arg_1; [L166] SORT_1 var_24_arg_0 = var_18; [L167] SORT_1 var_24_arg_1 = var_23; [L168] EXPR var_24_arg_0 | var_24_arg_1 [L168] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L169] SORT_3 var_25_arg_0 = state_16; [L170] SORT_1 var_25 = var_25_arg_0 >> 2; [L171] SORT_3 var_27_arg_0 = state_19; [L172] SORT_26 var_27 = var_27_arg_0 >> 3; [L173] EXPR var_27 & mask_SORT_26 [L173] var_27 = var_27 & mask_SORT_26 [L174] SORT_3 var_28_arg_0 = state_16; [L175] SORT_26 var_28 = var_28_arg_0 >> 3; [L176] EXPR var_28 & mask_SORT_26 [L176] var_28 = var_28 & mask_SORT_26 [L177] SORT_26 var_29_arg_0 = var_27; [L178] SORT_26 var_29_arg_1 = var_28; [L179] SORT_1 var_29 = var_29_arg_0 == var_29_arg_1; [L180] SORT_1 var_30_arg_0 = var_25; [L181] SORT_1 var_30_arg_1 = var_29; [L182] EXPR var_30_arg_0 | var_30_arg_1 [L182] SORT_1 var_30 = var_30_arg_0 | var_30_arg_1; [L183] SORT_1 var_31_arg_0 = var_24; [L184] SORT_1 var_31_arg_1 = var_30; [L185] EXPR var_31_arg_0 & var_31_arg_1 [L185] SORT_1 var_31 = var_31_arg_0 & var_31_arg_1; [L186] SORT_3 var_32_arg_0 = state_16; [L187] SORT_1 var_32 = var_32_arg_0 >> 3; [L188] SORT_3 var_33_arg_0 = state_19; [L189] SORT_1 var_33 = var_33_arg_0 >> 4; [L190] EXPR var_33 & mask_SORT_1 [L190] var_33 = var_33 & mask_SORT_1 [L191] SORT_3 var_34_arg_0 = state_16; [L192] SORT_1 var_34 = var_34_arg_0 >> 4; [L193] EXPR var_34 & mask_SORT_1 [L193] var_34 = var_34 & mask_SORT_1 [L194] SORT_1 var_35_arg_0 = var_33; [L195] SORT_1 var_35_arg_1 = var_34; [L196] SORT_1 var_35 = var_35_arg_0 == var_35_arg_1; [L197] SORT_1 var_36_arg_0 = var_32; [L198] SORT_1 var_36_arg_1 = var_35; [L199] EXPR var_36_arg_0 | var_36_arg_1 [L199] SORT_1 var_36 = var_36_arg_0 | var_36_arg_1; [L200] SORT_1 var_37_arg_0 = var_31; [L201] SORT_1 var_37_arg_1 = var_36; [L202] EXPR var_37_arg_0 & var_37_arg_1 [L202] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L203] SORT_1 var_38_arg_0 = var_14; [L204] SORT_1 var_38_arg_1 = var_37; [L205] EXPR var_38_arg_0 | var_38_arg_1 [L205] SORT_1 var_38 = var_38_arg_0 | var_38_arg_1; [L206] SORT_1 var_42_arg_0 = var_38; [L207] SORT_1 var_42 = ~var_42_arg_0; [L208] SORT_1 var_43_arg_0 = var_41; [L209] SORT_1 var_43_arg_1 = var_42; [L210] EXPR var_43_arg_0 & var_43_arg_1 [L210] SORT_1 var_43 = var_43_arg_0 & var_43_arg_1; [L211] EXPR var_43 & mask_SORT_1 [L211] var_43 = var_43 & mask_SORT_1 [L212] SORT_1 bad_44_arg_0 = var_43; [L213] CALL __VERIFIER_assert(!(bad_44_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 23:32:24,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d570de8a468b2e5d7e18a67170da2d8f06202ccdf10baa0799e3c0763140866e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:32:27,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:32:27,429 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-13 23:32:27,438 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:32:27,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:32:27,489 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:32:27,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:32:27,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:32:27,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:32:27,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:32:27,491 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:32:27,492 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:32:27,493 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:32:27,493 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:32:27,493 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:32:27,493 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:32:27,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:32:27,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:32:27,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:32:27,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:32:27,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:32:27,504 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:32:27,504 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:32:27,504 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:32:27,504 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:32:27,504 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:32:27,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:32:27,505 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:32:27,505 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:32:27,505 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 23:32:27,505 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:32:27,505 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:32:27,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:32:27,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:32:27,506 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:32:27,506 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:32:27,507 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:32:27,507 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:32:27,507 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:32:27,507 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:32:27,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E 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 ! call(reach_error())) ) 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 -> d570de8a468b2e5d7e18a67170da2d8f06202ccdf10baa0799e3c0763140866e [2024-11-13 23:32:27,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:32:27,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:32:27,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:32:27,825 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:32:27,825 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:32:27,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c Unable to find full path for "g++" [2024-11-13 23:32:29,767 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:32:30,146 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:32:30,147 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c [2024-11-13 23:32:30,172 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/data/977c2a226/e0a0bd36dfe44f4fb845d308aba5e6cb/FLAG10864e17d [2024-11-13 23:32:30,356 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/data/977c2a226/e0a0bd36dfe44f4fb845d308aba5e6cb [2024-11-13 23:32:30,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:32:30,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:32:30,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:32:30,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:32:30,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:32:30,368 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:32:30" (1/1) ... [2024-11-13 23:32:30,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544b4300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:30, skipping insertion in model container [2024-11-13 23:32:30,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:32:30" (1/1) ... [2024-11-13 23:32:30,433 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:32:30,644 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c[1259,1272] [2024-11-13 23:32:30,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:32:30,985 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:32:31,003 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p12.c[1259,1272] [2024-11-13 23:32:31,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:32:31,159 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:32:31,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:31 WrapperNode [2024-11-13 23:32:31,160 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:32:31,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:32:31,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:32:31,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:32:31,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:31" (1/1) ... [2024-11-13 23:32:31,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:31" (1/1) ... [2024-11-13 23:32:31,312 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1116 [2024-11-13 23:32:31,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:32:31,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:32:31,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:32:31,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:32:31,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:31" (1/1) ... [2024-11-13 23:32:31,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:31" (1/1) ... [2024-11-13 23:32:31,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:31" (1/1) ... [2024-11-13 23:32:31,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:31" (1/1) ... [2024-11-13 23:32:31,357 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:31" (1/1) ... [2024-11-13 23:32:31,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:31" (1/1) ... [2024-11-13 23:32:31,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:31" (1/1) ... [2024-11-13 23:32:31,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:31" (1/1) ... [2024-11-13 23:32:31,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:32:31,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:32:31,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:32:31,395 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:32:31,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:31" (1/1) ... [2024-11-13 23:32:31,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:32:31,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:31,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:32:31,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:32:31,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:32:31,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:32:31,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:32:31,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:32:31,830 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:32:31,832 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:32:33,729 INFO L? ?]: Removed 106 outVars from TransFormulas that were not future-live. [2024-11-13 23:32:33,729 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:32:33,738 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:32:33,739 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:32:33,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:32:33 BoogieIcfgContainer [2024-11-13 23:32:33,740 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:32:33,743 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:32:33,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:32:33,748 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:32:33,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:32:30" (1/3) ... [2024-11-13 23:32:33,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742203a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:32:33, skipping insertion in model container [2024-11-13 23:32:33,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:31" (2/3) ... [2024-11-13 23:32:33,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742203a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:32:33, skipping insertion in model container [2024-11-13 23:32:33,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:32:33" (3/3) ... [2024-11-13 23:32:33,752 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p12.c [2024-11-13 23:32:33,768 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:32:33,769 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vis_arrays_vsaR_p12.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:32:33,822 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:32:33,838 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;@e2d7ce9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:32:33,838 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:32:33,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 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) [2024-11-13 23:32:33,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 23:32:33,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:33,849 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 23:32:33,850 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:32:33,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:33,856 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-13 23:32:33,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:32:33,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314821246] [2024-11-13 23:32:33,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:33,871 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:32:33,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:32:33,897 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:32:33,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 23:32:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:34,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 23:32:34,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:32:34,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:32:34,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:32:34,510 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:32:34,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314821246] [2024-11-13 23:32:34,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314821246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:32:34,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:32:34,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:32:34,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613007546] [2024-11-13 23:32:34,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:32:34,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:32:34,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:32:34,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:32:34,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:32:34,541 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:32:34,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:34,639 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-13 23:32:34,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:32:34,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-13 23:32:34,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:34,651 INFO L225 Difference]: With dead ends: 18 [2024-11-13 23:32:34,651 INFO L226 Difference]: Without dead ends: 10 [2024-11-13 23:32:34,654 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 [2024-11-13 23:32:34,658 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:34,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:32:34,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-13 23:32:34,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-13 23:32:34,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:32:34,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-13 23:32:34,691 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-13 23:32:34,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:34,692 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-13 23:32:34,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:32:34,692 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-13 23:32:34,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:32:34,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:34,693 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:34,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-13 23:32:34,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:32:34,895 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:32:34,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:34,896 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-13 23:32:34,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:32:34,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043517065] [2024-11-13 23:32:34,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:34,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:32:34,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:32:34,903 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:32:34,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 23:32:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:35,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-13 23:32:35,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:32:36,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:32:36,280 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:32:52,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:32:52,207 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:32:52,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043517065] [2024-11-13 23:32:52,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2043517065] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:32:52,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1429881180] [2024-11-13 23:32:52,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:52,207 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:32:52,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:32:52,210 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:32:52,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-13 23:32:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:52,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-13 23:32:52,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:32:53,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:32:53,179 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:33:22,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:33:22,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1429881180] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:33:22,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511634090] [2024-11-13 23:33:22,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:22,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:22,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:33:22,086 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:33:22,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 23:33:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:22,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-13 23:33:22,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:33:22,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:33:22,842 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:34:22,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:34:22,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511634090] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:34:22,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-13 23:34:22,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 16 [2024-11-13 23:34:22,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411589815] [2024-11-13 23:34:22,362 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-13 23:34:22,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 23:34:22,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:34:22,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 23:34:22,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=162, Unknown=23, NotChecked=0, Total=240 [2024-11-13 23:34:22,364 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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) [2024-11-13 23:34:26,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:26,512 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-13 23:34:26,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:34:26,516 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-13 23:34:26,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:26,517 INFO L225 Difference]: With dead ends: 15 [2024-11-13 23:34:26,517 INFO L226 Difference]: Without dead ends: 13 [2024-11-13 23:34:26,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 84.7s TimeCoverageRelationStatistics Valid=91, Invalid=227, Unknown=24, NotChecked=0, Total=342 [2024-11-13 23:34:26,518 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:26,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 35 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 23:34:26,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-13 23:34:26,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-13 23:34:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:34:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-13 23:34:26,526 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-13 23:34:26,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:26,527 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-13 23:34:26,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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) [2024-11-13 23:34:26,528 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-13 23:34:26,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 23:34:26,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:26,529 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-13 23:34:26,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-13 23:34:26,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-13 23:34:26,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 23:34:27,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:27,130 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:34:27,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:27,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-13 23:34:27,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:34:27,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926583905] [2024-11-13 23:34:27,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:34:27,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:34:27,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:34:27,135 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:34:27,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-13 23:34:27,862 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:34:27,863 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:34:27,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-13 23:34:27,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:28,481 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:34:28,481 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:36:11,943 WARN L286 SmtUtils]: Spent 27.40s on a formula simplification that was a NOOP. DAG size: 3211 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:37:41,072 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:41,073 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:37:41,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926583905] [2024-11-13 23:37:41,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926583905] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:37:41,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1275372583] [2024-11-13 23:37:41,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:37:41,073 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:37:41,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:37:41,076 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:37:41,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77e1ff65-f3b6-436e-97ad-f68990b9cf83/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-13 23:37:42,084 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:37:42,084 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:37:42,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-13 23:37:42,124 INFO L278 TraceCheckSpWp]: Computing forward predicates...