./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.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_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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 63b2465af3382507505d15dae126c5fc4c2a382acf5f7b83ac8e7391dc7cb34e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:07:25,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:07:25,159 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 04:07:25,166 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:07:25,167 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:07:25,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:07:25,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:07:25,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:07:25,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:07:25,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:07:25,208 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:07:25,208 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:07:25,208 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:07:25,208 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:07:25,209 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:07:25,209 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:07:25,209 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:07:25,209 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:07:25,209 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:07:25,209 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:07:25,209 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:07:25,210 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:07:25,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:07:25,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:07:25,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:07:25,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:07:25,210 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:07:25,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:07:25,210 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:07:25,210 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:07:25,211 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:07:25,211 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:07:25,212 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:07:25,212 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:07:25,212 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:07:25,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:07:25,212 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:07:25,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:07:25,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:07:25,213 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:07:25,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:07:25,213 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:07:25,213 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:07:25,213 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:07:25,214 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_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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 -> 63b2465af3382507505d15dae126c5fc4c2a382acf5f7b83ac8e7391dc7cb34e [2024-11-14 04:07:25,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:07:25,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:07:25,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:07:25,573 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:07:25,573 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:07:25,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c Unable to find full path for "g++" [2024-11-14 04:07:27,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:07:27,682 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:07:27,682 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c [2024-11-14 04:07:27,699 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/data/9b47ff3ca/37e5220b52984c2395e6f58cd0683178/FLAGc8ba52bff [2024-11-14 04:07:27,720 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/data/9b47ff3ca/37e5220b52984c2395e6f58cd0683178 [2024-11-14 04:07:27,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:07:27,723 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:07:27,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:07:27,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:07:27,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:07:27,730 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:07:27" (1/1) ... [2024-11-14 04:07:27,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357041af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:27, skipping insertion in model container [2024-11-14 04:07:27,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:07:27" (1/1) ... [2024-11-14 04:07:27,747 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:07:27,904 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_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c[1245,1258] [2024-11-14 04:07:27,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:07:27,958 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:07:27,969 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_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c[1245,1258] [2024-11-14 04:07:27,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:07:27,999 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:07:27,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:27 WrapperNode [2024-11-14 04:07:27,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:07:28,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:07:28,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:07:28,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:07:28,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:27" (1/1) ... [2024-11-14 04:07:28,017 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:27" (1/1) ... [2024-11-14 04:07:28,074 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2024-11-14 04:07:28,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:07:28,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:07:28,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:07:28,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:07:28,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:27" (1/1) ... [2024-11-14 04:07:28,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:27" (1/1) ... [2024-11-14 04:07:28,085 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:27" (1/1) ... [2024-11-14 04:07:28,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:27" (1/1) ... [2024-11-14 04:07:28,091 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:27" (1/1) ... [2024-11-14 04:07:28,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:27" (1/1) ... [2024-11-14 04:07:28,096 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:27" (1/1) ... [2024-11-14 04:07:28,097 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:27" (1/1) ... [2024-11-14 04:07:28,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:07:28,101 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:07:28,101 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:07:28,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:07:28,102 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:27" (1/1) ... [2024-11-14 04:07:28,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:07:28,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:07:28,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:07:28,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:07:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:07:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:07:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:07:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:07:28,271 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:07:28,273 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:07:28,636 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-14 04:07:28,636 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:07:28,842 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:07:28,842 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:07:28,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:07:28 BoogieIcfgContainer [2024-11-14 04:07:28,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:07:28,848 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:07:28,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:07:28,853 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:07:28,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:07:27" (1/3) ... [2024-11-14 04:07:28,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4bc44f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:07:28, skipping insertion in model container [2024-11-14 04:07:28,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:27" (2/3) ... [2024-11-14 04:07:28,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4bc44f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:07:28, skipping insertion in model container [2024-11-14 04:07:28,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:07:28" (3/3) ... [2024-11-14 04:07:28,856 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bug-1.c [2024-11-14 04:07:28,873 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:07:28,874 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.bug-1.c that has 1 procedures, 7 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:07:28,928 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:07:28,944 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;@197cac87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:07:28,945 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:07:28,950 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) [2024-11-14 04:07:28,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 04:07:28,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:28,960 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 04:07:28,961 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:07:28,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:28,969 INFO L85 PathProgramCache]: Analyzing trace with hash 4582496, now seen corresponding path program 1 times [2024-11-14 04:07:28,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:28,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910459426] [2024-11-14 04:07:28,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:28,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:07:29,209 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:07:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:07:29,363 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:07:29,364 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:07:29,366 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:07:29,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:07:29,373 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:07:29,392 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:07:29,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:07:29 BoogieIcfgContainer [2024-11-14 04:07:29,396 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:07:29,396 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:07:29,396 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:07:29,397 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:07:29,397 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:07:28" (3/4) ... [2024-11-14 04:07:29,400 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:07:29,401 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:07:29,402 INFO L158 Benchmark]: Toolchain (without parser) took 1679.10ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 100.2MB in the end (delta: 18.0MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2024-11-14 04:07:29,403 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:07:29,403 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.87ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 106.5MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:07:29,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.57ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 103.9MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:07:29,404 INFO L158 Benchmark]: Boogie Preprocessor took 25.26ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 102.5MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:07:29,404 INFO L158 Benchmark]: RCFGBuilder took 742.37ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 68.5MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 04:07:29,405 INFO L158 Benchmark]: TraceAbstraction took 548.17ms. Allocated memory is still 142.6MB. Free memory was 67.7MB in the beginning and 100.3MB in the end (delta: -32.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:07:29,405 INFO L158 Benchmark]: Witness Printer took 4.52ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 100.2MB in the end (delta: 21.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:07:29,409 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.87ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 106.5MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.57ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 103.9MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.26ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 102.5MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 742.37ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 68.5MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 548.17ms. Allocated memory is still 142.6MB. Free memory was 67.7MB in the beginning and 100.3MB in the end (delta: -32.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.52ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 100.2MB in the end (delta: 21.0kB). 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 bitwiseAnd at line 47, overapproximation of bitwiseAnd at line 39. 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_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L30] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L32] const SORT_1 var_4 = 1; [L33] const SORT_7 var_9 = 1; [L34] const SORT_1 var_17 = 0; [L36] SORT_1 input_2; [L37] SORT_1 input_3; [L39] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L39] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L41] SORT_1 init_6_arg_1 = var_4; [L42] state_5 = init_6_arg_1 VAL [mask_SORT_1=1, state_5=1, var_17=0, var_4=1, var_9=1] [L45] input_2 = __VERIFIER_nondet_uchar() [L46] input_3 = __VERIFIER_nondet_uchar() [L47] EXPR input_3 & mask_SORT_1 [L47] input_3 = input_3 & mask_SORT_1 [L50] SORT_1 var_8_arg_0 = state_5; [L51] EXPR var_8_arg_0 & mask_SORT_1 [L51] var_8_arg_0 = var_8_arg_0 & mask_SORT_1 [L52] SORT_7 var_8 = var_8_arg_0; [L53] SORT_7 var_10_arg_0 = var_8; [L54] SORT_7 var_10_arg_1 = var_9; [L55] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L56] SORT_1 var_13_arg_0 = var_10; [L57] SORT_1 var_13 = ~var_13_arg_0; [L58] SORT_1 var_14_arg_0 = var_4; [L59] SORT_1 var_14_arg_1 = var_13; [L60] EXPR var_14_arg_0 & var_14_arg_1 [L60] SORT_1 var_14 = var_14_arg_0 & var_14_arg_1; [L61] EXPR var_14 & mask_SORT_1 [L61] var_14 = var_14 & mask_SORT_1 [L62] SORT_1 bad_15_arg_0 = var_14; [L63] CALL __VERIFIER_assert(!(bad_15_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: 0.5s, 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, 0.1s 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 [2024-11-14 04:07:29,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/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 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_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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 63b2465af3382507505d15dae126c5fc4c2a382acf5f7b83ac8e7391dc7cb34e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:07:32,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:07:32,250 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-14 04:07:32,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:07:32,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:07:32,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:07:32,297 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:07:32,297 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:07:32,297 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:07:32,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:07:32,299 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:07:32,299 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:07:32,299 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:07:32,299 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:07:32,299 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:07:32,299 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:07:32,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:07:32,300 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:07:32,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:07:32,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:07:32,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:07:32,300 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:07:32,300 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:07:32,300 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:07:32,300 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:07:32,301 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:07:32,302 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:07:32,302 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:07:32,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:07:32,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:07:32,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:07:32,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:07:32,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:07:32,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:07:32,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:07:32,303 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:07:32,303 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:07:32,303 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:07:32,304 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:07:32,304 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:07:32,304 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_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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 -> 63b2465af3382507505d15dae126c5fc4c2a382acf5f7b83ac8e7391dc7cb34e [2024-11-14 04:07:32,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:07:32,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:07:32,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:07:32,642 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:07:32,642 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:07:32,643 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c Unable to find full path for "g++" [2024-11-14 04:07:34,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:07:34,860 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:07:34,860 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c [2024-11-14 04:07:34,874 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/data/3a7c29dfa/3164404bc1aa468c89e23defcfd36f29/FLAGc29a440c9 [2024-11-14 04:07:34,897 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/data/3a7c29dfa/3164404bc1aa468c89e23defcfd36f29 [2024-11-14 04:07:34,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:07:34,903 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:07:34,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:07:34,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:07:34,911 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:07:34,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:07:34" (1/1) ... [2024-11-14 04:07:34,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f1e3c3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:34, skipping insertion in model container [2024-11-14 04:07:34,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:07:34" (1/1) ... [2024-11-14 04:07:34,930 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:07:35,106 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_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c[1245,1258] [2024-11-14 04:07:35,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:07:35,170 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:07:35,183 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_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c[1245,1258] [2024-11-14 04:07:35,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:07:35,232 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:07:35,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:35 WrapperNode [2024-11-14 04:07:35,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:07:35,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:07:35,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:07:35,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:07:35,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:35" (1/1) ... [2024-11-14 04:07:35,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:35" (1/1) ... [2024-11-14 04:07:35,279 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2024-11-14 04:07:35,279 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:07:35,280 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:07:35,280 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:07:35,280 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:07:35,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:35" (1/1) ... [2024-11-14 04:07:35,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:35" (1/1) ... [2024-11-14 04:07:35,291 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:35" (1/1) ... [2024-11-14 04:07:35,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:35" (1/1) ... [2024-11-14 04:07:35,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:35" (1/1) ... [2024-11-14 04:07:35,304 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:35" (1/1) ... [2024-11-14 04:07:35,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:35" (1/1) ... [2024-11-14 04:07:35,306 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:35" (1/1) ... [2024-11-14 04:07:35,308 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:07:35,309 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:07:35,309 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:07:35,309 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:07:35,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:35" (1/1) ... [2024-11-14 04:07:35,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:07:35,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:07:35,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:07:35,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:07:35,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:07:35,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:07:35,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:07:35,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:07:35,469 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:07:35,471 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:07:35,634 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-14 04:07:35,634 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:07:35,643 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:07:35,644 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:07:35,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:07:35 BoogieIcfgContainer [2024-11-14 04:07:35,644 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:07:35,648 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:07:35,648 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:07:35,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:07:35,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:07:34" (1/3) ... [2024-11-14 04:07:35,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265add02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:07:35, skipping insertion in model container [2024-11-14 04:07:35,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:35" (2/3) ... [2024-11-14 04:07:35,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265add02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:07:35, skipping insertion in model container [2024-11-14 04:07:35,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:07:35" (3/3) ... [2024-11-14 04:07:35,656 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bug-1.c [2024-11-14 04:07:35,673 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:07:35,675 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.bug-1.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:07:35,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:07:35,758 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;@93897ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:07:35,758 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:07:35,762 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) [2024-11-14 04:07:35,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 04:07:35,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:35,770 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 04:07:35,771 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:07:35,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:35,777 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-14 04:07:35,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:07:35,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621382272] [2024-11-14 04:07:35,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:35,790 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 [2024-11-14 04:07:35,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:07:35,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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) [2024-11-14 04:07:35,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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 [2024-11-14 04:07:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:35,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 04:07:35,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:07:36,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:36,303 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:07:36,304 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:07:36,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621382272] [2024-11-14 04:07:36,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621382272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:36,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:07:36,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:07:36,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299287306] [2024-11-14 04:07:36,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:36,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:07:36,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:07:36,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:07:36,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:07:36,332 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) [2024-11-14 04:07:36,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:36,387 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-14 04:07:36,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:07:36,391 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 [2024-11-14 04:07:36,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:36,399 INFO L225 Difference]: With dead ends: 18 [2024-11-14 04:07:36,399 INFO L226 Difference]: Without dead ends: 10 [2024-11-14 04:07:36,402 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 [2024-11-14 04:07:36,405 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:36,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:07:36,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-14 04:07:36,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-14 04:07:36,432 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) [2024-11-14 04:07:36,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-14 04:07:36,438 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-14 04:07:36,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:36,438 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-14 04:07:36,438 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) [2024-11-14 04:07:36,439 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-14 04:07:36,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 04:07:36,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:36,439 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:36,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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 [2024-11-14 04:07:36,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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 [2024-11-14 04:07:36,640 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:07:36,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:36,641 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-14 04:07:36,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:07:36,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333009657] [2024-11-14 04:07:36,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:36,642 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 [2024-11-14 04:07:36,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:07:36,645 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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) [2024-11-14 04:07:36,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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 [2024-11-14 04:07:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:36,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 04:07:36,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:07:37,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:37,072 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:07:37,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:37,955 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:07:37,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333009657] [2024-11-14 04:07:37,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333009657] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:07:37,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [521889067] [2024-11-14 04:07:37,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:37,956 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:07:37,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:07:37,959 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:07:37,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 04:07:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:38,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 04:07:38,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:07:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:38,259 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:07:38,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:38,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [521889067] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:07:38,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774082079] [2024-11-14 04:07:38,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:38,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:07:38,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:07:38,757 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:07:38,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:07:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:38,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 04:07:38,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:07:39,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:39,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:07:39,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:39,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774082079] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:07:39,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:07:39,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2024-11-14 04:07:39,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603440769] [2024-11-14 04:07:39,642 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:07:39,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 04:07:39,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:07:39,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 04:07:39,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-14 04:07:39,644 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2024-11-14 04:07:39,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:39,690 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2024-11-14 04:07:39,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:07:39,691 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) Word has length 8 [2024-11-14 04:07:39,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:39,691 INFO L225 Difference]: With dead ends: 9 [2024-11-14 04:07:39,691 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:07:39,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-14 04:07:39,693 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:39,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:07:39,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:07:39,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:07:39,694 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) [2024-11-14 04:07:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:07:39,695 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2024-11-14 04:07:39,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:39,695 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:07:39,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2024-11-14 04:07:39,695 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:07:39,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:07:39,698 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:07:39,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 04:07:39,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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 [2024-11-14 04:07:40,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-14 04:07:40,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/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_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 04:07:40,308 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 04:07:40,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 04:07:40,337 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:07:40,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:07:40 BoogieIcfgContainer [2024-11-14 04:07:40,350 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:07:40,351 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:07:40,351 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:07:40,351 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:07:40,352 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:07:35" (3/4) ... [2024-11-14 04:07:40,354 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 04:07:40,361 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-14 04:07:40,362 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-14 04:07:40,362 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 04:07:40,362 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:07:40,362 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:07:40,391 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.witnessprinter has thrown an exception: java.lang.NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:61) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:1) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GeneratedWitnessEdge.getSourceCode(GeneratedWitnessEdge.java:156) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.lambda$2(GraphMLCorrectnessWitnessGenerator.java:91) at edu.uci.ics.jung.io.GraphMLWriter.writeEdgeData(GraphMLWriter.java:237) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.UltimateGraphMLWriter.save(UltimateGraphMLWriter.java:106) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.makeGraphMLString(GraphMLCorrectnessWitnessGenerator.java:111) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.generateProofWitness(WitnessPrinter.java:168) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.finish(WitnessPrinter.java:143) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:130) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-14 04:07:40,395 INFO L158 Benchmark]: Toolchain (without parser) took 5492.46ms. Allocated memory was 83.9MB in the beginning and 142.6MB in the end (delta: 58.7MB). Free memory was 60.6MB in the beginning and 90.6MB in the end (delta: -29.9MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2024-11-14 04:07:40,395 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 83.9MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:07:40,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.73ms. Allocated memory is still 83.9MB. Free memory was 60.3MB in the beginning and 48.4MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:07:40,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.37ms. Allocated memory is still 83.9MB. Free memory was 48.4MB in the beginning and 46.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:07:40,396 INFO L158 Benchmark]: Boogie Preprocessor took 28.31ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 46.0MB in the end (delta: 908.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:07:40,396 INFO L158 Benchmark]: RCFGBuilder took 335.35ms. Allocated memory is still 83.9MB. Free memory was 46.0MB in the beginning and 34.4MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:07:40,396 INFO L158 Benchmark]: TraceAbstraction took 4702.37ms. Allocated memory was 83.9MB in the beginning and 142.6MB in the end (delta: 58.7MB). Free memory was 33.8MB in the beginning and 92.9MB in the end (delta: -59.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:07:40,397 INFO L158 Benchmark]: Witness Printer took 43.50ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 90.6MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:07:40,399 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 83.9MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.73ms. Allocated memory is still 83.9MB. Free memory was 60.3MB in the beginning and 48.4MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.37ms. Allocated memory is still 83.9MB. Free memory was 48.4MB in the beginning and 46.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.31ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 46.0MB in the end (delta: 908.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 335.35ms. Allocated memory is still 83.9MB. Free memory was 46.0MB in the beginning and 34.4MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4702.37ms. Allocated memory was 83.9MB in the beginning and 142.6MB in the end (delta: 58.7MB). Free memory was 33.8MB in the beginning and 92.9MB in the end (delta: -59.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.50ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 90.6MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. 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: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 6 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 12 QuantifiedInterpolants, 2393 SizeOfPredicates, 22 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/12 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 1 specifications checked. All of them hold - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: (((((0 == var_17) && (1 == var_9)) && (1 == var_4)) && (1 == mask_SORT_1)) && (1 == state_5)) * Results from de.uni_freiburg.informatik.ultimate.witnessprinter: - ExceptionOrErrorResult: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null de.uni_freiburg.informatik.ultimate.witnessprinter: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-14 04:07:40,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c0e21-ac4b-4a6c-96fa-b2bac4cfa823/bin/utaipan-verify-sOmjnqqW8E/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: ERROR: ExceptionOrErrorResult: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null