./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.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_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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_37e61972-f58f-4d69-b32e-a9095106eb8c/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 17717b63b09459fcd66600a5d5a8a3b248f0a597d7e83f55a52c01ebdad7484d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:59:28,894 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:59:28,991 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 02:59:28,997 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:59:28,998 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:59:29,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:59:29,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:59:29,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:59:29,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:59:29,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:59:29,038 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:59:29,038 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:59:29,038 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:59:29,038 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:59:29,038 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:59:29,038 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:59:29,038 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:59:29,038 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:59:29,038 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:59:29,039 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:59:29,039 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:59:29,039 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:59:29,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:59:29,039 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:59:29,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:59:29,039 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:59:29,040 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:59:29,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:59:29,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:59:29,040 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:59:29,040 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:59:29,040 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:59:29,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:59:29,040 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:59:29,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:59:29,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:59:29,040 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:59:29,041 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:59:29,041 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:59:29,041 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:59:29,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:59:29,041 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:59:29,041 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:59:29,041 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:59:29,041 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_37e61972-f58f-4d69-b32e-a9095106eb8c/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 -> 17717b63b09459fcd66600a5d5a8a3b248f0a597d7e83f55a52c01ebdad7484d [2024-11-14 02:59:29,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:59:29,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:59:29,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:59:29,375 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:59:29,376 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:59:29,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c Unable to find full path for "g++" [2024-11-14 02:59:31,354 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:59:31,701 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:59:31,701 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c [2024-11-14 02:59:31,721 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/data/f86d0ff0c/48bef69bc7fd4539828070d234e8f8d2/FLAGc8b38b257 [2024-11-14 02:59:31,737 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/data/f86d0ff0c/48bef69bc7fd4539828070d234e8f8d2 [2024-11-14 02:59:31,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:59:31,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:59:31,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:59:31,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:59:31,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:59:31,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:59:31" (1/1) ... [2024-11-14 02:59:31,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ab39eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:31, skipping insertion in model container [2024-11-14 02:59:31,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:59:31" (1/1) ... [2024-11-14 02:59:31,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:59:31,934 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_37e61972-f58f-4d69-b32e-a9095106eb8c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c[1247,1260] [2024-11-14 02:59:31,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:59:32,004 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:59:32,014 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_37e61972-f58f-4d69-b32e-a9095106eb8c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c[1247,1260] [2024-11-14 02:59:32,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:59:32,066 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:59:32,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:32 WrapperNode [2024-11-14 02:59:32,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:59:32,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:59:32,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:59:32,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:59:32,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:32" (1/1) ... [2024-11-14 02:59:32,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:32" (1/1) ... [2024-11-14 02:59:32,145 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 108 [2024-11-14 02:59:32,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:59:32,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:59:32,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:59:32,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:59:32,157 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:32" (1/1) ... [2024-11-14 02:59:32,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:32" (1/1) ... [2024-11-14 02:59:32,163 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:32" (1/1) ... [2024-11-14 02:59:32,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:32" (1/1) ... [2024-11-14 02:59:32,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:32" (1/1) ... [2024-11-14 02:59:32,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:32" (1/1) ... [2024-11-14 02:59:32,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:32" (1/1) ... [2024-11-14 02:59:32,185 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:32" (1/1) ... [2024-11-14 02:59:32,187 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:59:32,188 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:59:32,189 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:59:32,189 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:59:32,190 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:32" (1/1) ... [2024-11-14 02:59:32,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:59:32,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:59:32,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:59:32,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:59:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:59:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:59:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:59:32,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:59:32,363 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:59:32,365 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:59:32,761 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-14 02:59:32,761 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:59:33,005 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:59:33,005 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:59:33,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:59:33 BoogieIcfgContainer [2024-11-14 02:59:33,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:59:33,009 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:59:33,009 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:59:33,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:59:33,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:59:31" (1/3) ... [2024-11-14 02:59:33,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5e4bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:59:33, skipping insertion in model container [2024-11-14 02:59:33,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:32" (2/3) ... [2024-11-14 02:59:33,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5e4bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:59:33, skipping insertion in model container [2024-11-14 02:59:33,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:59:33" (3/3) ... [2024-11-14 02:59:33,019 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.counter.c [2024-11-14 02:59:33,040 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:59:33,042 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.counter.c that has 1 procedures, 7 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 02:59:33,101 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:59:33,119 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;@3accef45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:59:33,119 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:59:33,123 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 02:59:33,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 02:59:33,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:33,130 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 02:59:33,131 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:33,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:33,138 INFO L85 PathProgramCache]: Analyzing trace with hash 4579197, now seen corresponding path program 1 times [2024-11-14 02:59:33,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:59:33,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290256807] [2024-11-14 02:59:33,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:33,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:59:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 02:59:33,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 02:59:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 02:59:33,440 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 02:59:33,442 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 02:59:33,443 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 02:59:33,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:59:33,452 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 02:59:33,468 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 02:59:33,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 02:59:33 BoogieIcfgContainer [2024-11-14 02:59:33,471 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 02:59:33,472 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 02:59:33,472 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 02:59:33,472 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 02:59:33,473 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:59:33" (3/4) ... [2024-11-14 02:59:33,475 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 02:59:33,476 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 02:59:33,477 INFO L158 Benchmark]: Toolchain (without parser) took 1735.58ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 117.8MB in the beginning and 378.9MB in the end (delta: -261.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2024-11-14 02:59:33,478 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:59:33,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.84ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 105.9MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 02:59:33,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.73ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 102.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 02:59:33,479 INFO L158 Benchmark]: Boogie Preprocessor took 41.90ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 101.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:59:33,479 INFO L158 Benchmark]: RCFGBuilder took 817.00ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 67.9MB in the end (delta: 33.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 02:59:33,479 INFO L158 Benchmark]: TraceAbstraction took 462.60ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 67.5MB in the beginning and 378.9MB in the end (delta: -311.5MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-11-14 02:59:33,480 INFO L158 Benchmark]: Witness Printer took 4.29ms. Allocated memory is still 411.0MB. Free memory was 378.9MB in the beginning and 378.9MB in the end (delta: 24.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:59:33,482 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.84ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 105.9MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.73ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 102.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.90ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 101.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 817.00ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 67.9MB in the end (delta: 33.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 462.60ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 67.5MB in the beginning and 378.9MB in the end (delta: -311.5MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Witness Printer took 4.29ms. Allocated memory is still 411.0MB. Free memory was 378.9MB in the beginning and 378.9MB in the end (delta: 24.0kB). 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 40, overapproximation of bitwiseAnd at line 48. 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_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 4); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (4 - 1); [L32] const SORT_4 var_5 = 1; [L33] const SORT_4 var_8 = 0; [L34] const SORT_1 var_12 = 1; [L35] const SORT_4 var_18 = 15; [L37] SORT_1 input_2; [L38] SORT_1 input_3; [L40] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 [L40] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L42] SORT_4 init_7_arg_1 = var_5; [L43] state_6 = init_7_arg_1 VAL [mask_SORT_1=1, mask_SORT_4=15, state_6=1, var_12=1, var_18=15, var_5=1, var_8=0] [L46] input_2 = __VERIFIER_nondet_uchar() [L47] input_3 = __VERIFIER_nondet_uchar() [L48] EXPR input_3 & mask_SORT_1 [L48] input_3 = input_3 & mask_SORT_1 [L51] SORT_4 var_9_arg_0 = state_6; [L52] SORT_4 var_9_arg_1 = var_8; [L53] SORT_1 var_9 = var_9_arg_0 != var_9_arg_1; [L54] SORT_1 var_13_arg_0 = var_9; [L55] SORT_1 var_13 = ~var_13_arg_0; [L56] SORT_1 var_14_arg_0 = var_12; [L57] SORT_1 var_14_arg_1 = var_13; [L58] EXPR var_14_arg_0 & var_14_arg_1 [L58] SORT_1 var_14 = var_14_arg_0 & var_14_arg_1; [L59] EXPR var_14 & mask_SORT_1 [L59] var_14 = var_14 & mask_SORT_1 [L60] SORT_1 bad_15_arg_0 = var_14; [L61] 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: 0.4s, 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 02:59:33,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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_37e61972-f58f-4d69-b32e-a9095106eb8c/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 17717b63b09459fcd66600a5d5a8a3b248f0a597d7e83f55a52c01ebdad7484d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:59:36,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:59:36,333 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-14 02:59:36,344 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:59:36,345 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:59:36,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:59:36,396 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:59:36,396 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:59:36,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:59:36,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:59:36,398 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:59:36,398 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:59:36,398 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:59:36,398 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:59:36,399 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:59:36,399 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:59:36,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:59:36,399 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:59:36,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:59:36,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:59:36,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:59:36,399 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:59:36,400 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 02:59:36,400 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 02:59:36,400 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:59:36,400 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 02:59:36,400 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:59:36,400 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:59:36,400 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:59:36,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 02:59:36,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:59:36,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:59:36,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:59:36,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:59:36,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:59:36,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:59:36,401 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 02:59:36,401 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 02:59:36,401 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:59:36,401 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:59:36,401 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_37e61972-f58f-4d69-b32e-a9095106eb8c/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 -> 17717b63b09459fcd66600a5d5a8a3b248f0a597d7e83f55a52c01ebdad7484d [2024-11-14 02:59:36,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:59:36,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:59:36,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:59:36,749 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:59:36,749 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:59:36,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c Unable to find full path for "g++" [2024-11-14 02:59:38,841 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:59:39,183 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:59:39,188 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c [2024-11-14 02:59:39,203 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/data/405ffcd67/3c628c3338204c0eab6a6b5c2f1ed96a/FLAG7b9959fdf [2024-11-14 02:59:39,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/data/405ffcd67/3c628c3338204c0eab6a6b5c2f1ed96a [2024-11-14 02:59:39,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:59:39,485 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:59:39,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:59:39,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:59:39,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:59:39,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:59:39" (1/1) ... [2024-11-14 02:59:39,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7e64ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:39, skipping insertion in model container [2024-11-14 02:59:39,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:59:39" (1/1) ... [2024-11-14 02:59:39,550 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:59:39,766 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_37e61972-f58f-4d69-b32e-a9095106eb8c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c[1247,1260] [2024-11-14 02:59:39,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:59:39,829 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:59:39,841 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_37e61972-f58f-4d69-b32e-a9095106eb8c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c[1247,1260] [2024-11-14 02:59:39,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:59:39,895 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:59:39,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:39 WrapperNode [2024-11-14 02:59:39,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:59:39,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:59:39,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:59:39,899 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:59:39,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:39" (1/1) ... [2024-11-14 02:59:39,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:39" (1/1) ... [2024-11-14 02:59:39,940 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-11-14 02:59:39,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:59:39,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:59:39,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:59:39,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:59:39,953 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:39" (1/1) ... [2024-11-14 02:59:39,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:39" (1/1) ... [2024-11-14 02:59:39,957 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:39" (1/1) ... [2024-11-14 02:59:39,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:39" (1/1) ... [2024-11-14 02:59:39,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:39" (1/1) ... [2024-11-14 02:59:39,975 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:39" (1/1) ... [2024-11-14 02:59:39,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:39" (1/1) ... [2024-11-14 02:59:39,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:39" (1/1) ... [2024-11-14 02:59:39,983 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:59:39,984 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:59:39,988 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:59:39,988 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:59:39,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:39" (1/1) ... [2024-11-14 02:59:39,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:59:40,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:59:40,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:59:40,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:59:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:59:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 02:59:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:59:40,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:59:40,149 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:59:40,151 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:59:40,309 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-14 02:59:40,309 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:59:40,321 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:59:40,321 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:59:40,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:59:40 BoogieIcfgContainer [2024-11-14 02:59:40,322 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:59:40,325 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:59:40,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:59:40,333 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:59:40,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:59:39" (1/3) ... [2024-11-14 02:59:40,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558c1562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:59:40, skipping insertion in model container [2024-11-14 02:59:40,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:39" (2/3) ... [2024-11-14 02:59:40,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558c1562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:59:40, skipping insertion in model container [2024-11-14 02:59:40,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:59:40" (3/3) ... [2024-11-14 02:59:40,336 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.counter.c [2024-11-14 02:59:40,353 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:59:40,355 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.counter.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 02:59:40,408 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:59:40,421 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;@91bcbd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:59:40,422 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:59:40,426 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 02:59:40,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 02:59:40,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:40,432 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 02:59:40,433 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:40,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:40,438 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-14 02:59:40,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:59:40,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451374517] [2024-11-14 02:59:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:40,449 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 02:59:40,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:59:40,451 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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 02:59:40,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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 02:59:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:40,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 02:59:40,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:59:40,817 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 02:59:40,817 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:59:40,817 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:59:40,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451374517] [2024-11-14 02:59:40,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451374517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:59:40,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:59:40,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:59:40,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850944264] [2024-11-14 02:59:40,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:59:40,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:59:40,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:59:40,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:59:40,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:59:40,847 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 02:59:40,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:59:40,914 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-14 02:59:40,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:59:40,916 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 02:59:40,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:59:40,923 INFO L225 Difference]: With dead ends: 18 [2024-11-14 02:59:40,924 INFO L226 Difference]: Without dead ends: 10 [2024-11-14 02:59:40,927 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 02:59:40,930 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 02:59:40,931 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 02:59:40,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-14 02:59:40,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-14 02:59:40,957 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 02:59:40,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-14 02:59:40,965 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-14 02:59:40,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:59:40,967 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-14 02:59:40,967 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 02:59:40,967 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-14 02:59:40,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 02:59:40,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:40,968 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-14 02:59:40,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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 02:59:41,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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 02:59:41,169 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:41,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:41,170 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-14 02:59:41,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:59:41,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005434015] [2024-11-14 02:59:41,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:41,170 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 02:59:41,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:59:41,174 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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 02:59:41,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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 02:59:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:41,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 02:59:41,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:59:41,605 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 02:59:41,605 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:59:42,391 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 02:59:42,392 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:59:42,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005434015] [2024-11-14 02:59:42,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005434015] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:59:42,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [663561660] [2024-11-14 02:59:42,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:42,392 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 02:59:42,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 02:59:42,405 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 02:59:42,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 02:59:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:42,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 02:59:42,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:59:42,716 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 02:59:42,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:59:43,304 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 02:59:43,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [663561660] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:59:43,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693317550] [2024-11-14 02:59:43,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:43,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:59:43,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:59:43,309 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:59:43,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 02:59:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:43,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-14 02:59:43,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:59:43,658 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 02:59:43,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:59:44,362 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 02:59:44,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693317550] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:59:44,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 02:59:44,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2024-11-14 02:59:44,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226459927] [2024-11-14 02:59:44,364 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 02:59:44,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 02:59:44,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:59:44,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 02:59:44,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-14 02:59:44,366 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 02:59:44,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:59:44,779 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-11-14 02:59:44,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 02:59:44,780 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 02:59:44,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:59:44,781 INFO L225 Difference]: With dead ends: 18 [2024-11-14 02:59:44,781 INFO L226 Difference]: Without dead ends: 16 [2024-11-14 02:59:44,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2024-11-14 02:59:44,782 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:59:44,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 13 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:59:44,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-14 02:59:44,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-11-14 02:59:44,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:59:44,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-14 02:59:44,788 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2024-11-14 02:59:44,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:59:44,789 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-14 02:59:44,789 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 02:59:44,789 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-14 02:59:44,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 02:59:44,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:44,790 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2024-11-14 02:59:44,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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 02:59:44,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-14 02:59:45,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 02:59:45,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:59:45,393 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:45,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:45,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1333570723, now seen corresponding path program 2 times [2024-11-14 02:59:45,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:59:45,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196038296] [2024-11-14 02:59:45,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 02:59:45,395 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 02:59:45,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:59:45,397 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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 02:59:45,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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 [2024-11-14 02:59:45,486 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 02:59:45,486 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 02:59:45,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 02:59:45,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:59:46,135 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:59:46,135 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:59:53,224 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:59:53,224 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:59:53,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196038296] [2024-11-14 02:59:53,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196038296] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:59:53,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1812044453] [2024-11-14 02:59:53,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 02:59:53,225 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 02:59:53,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 02:59:53,226 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 02:59:53,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-14 02:59:53,371 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 02:59:53,371 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 02:59:53,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 02:59:53,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:59:53,769 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:59:53,770 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:59:58,096 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:59:58,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1812044453] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:59:58,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372876378] [2024-11-14 02:59:58,097 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 02:59:58,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:59:58,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:59:58,101 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:59:58,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 02:59:58,189 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 02:59:58,189 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 02:59:58,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-14 02:59:58,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:59:59,011 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 02:59:59,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:00:02,933 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|)) (.cse6 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_5~0#1|)) (.cse74 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse82 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_12~0#1|))) (let ((.cse15 (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse74 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv254 32) .cse82)))))))) (.cse4 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_18~0#1|)) (.cse65 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse6)))))))) (.cse1 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_8~0#1|))) (let ((.cse9 (= .cse65 .cse1)) (.cse8 (or .cse15 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse84 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse83 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse84 .cse6))))))) .cse2))))) (or (= .cse1 .cse83) (not (= .cse4 .cse83)) (= .cse84 .cse4))))))) (.cse7 (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse74 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) .cse82))))))))) (let ((.cse41 (and .cse8 (or .cse7 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse81 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (or (not (= .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse81 .cse6))))))) .cse2))))) (= .cse81 .cse4))))))) (.cse10 (and (or (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse78 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (or (not (= .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse78))))))) (not (= .cse78 .cse4))))) .cse7) (or .cse15 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse80 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse79 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse80))))))) (or (not (= .cse4 .cse79)) (not (= .cse80 .cse4)) (= .cse1 .cse79)))))))) (.cse50 (and (or .cse15 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse76 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse75 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse76))))))) (or (not (= .cse4 .cse75)) (= .cse1 .cse75) (= .cse76 .cse4)))))) (or (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse77 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (or (not (= .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse77))))))) (= .cse77 .cse4)))) .cse7))) (.cse40 (not .cse9)) (.cse0 (forall ((|v_ULTIMATE.start_main_~var_14_arg_0~0#1_27| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse74 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv254 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_14_arg_0~0#1_27|))))))))) (.cse11 (forall ((|v_ULTIMATE.start_main_~var_14_arg_0~0#1_27| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_14_arg_0~0#1_27|)))) .cse74)) (_ bv0 8))))) (and (or .cse0 (and (or (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse5 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 .cse6))))))) .cse2))))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse3)))))) (not (= .cse4 .cse3)) (= .cse5 .cse4))))) .cse7) .cse8)) (or .cse0 .cse9 .cse10) (or .cse11 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse13 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse12 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse13))))))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse12))))))) (not (= .cse4 .cse12)) (= .cse13 .cse4))))) .cse7) (or .cse0 (let ((.cse14 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse17 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse16 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse17))))))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse16)))))) (not (= .cse17 .cse4)) (= .cse4 .cse16))))))) (and (or .cse7 .cse14) (or .cse15 .cse14)))) (or .cse11 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse19 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse18 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse19 .cse6))))))) .cse2))))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse18))))))) (= .cse4 .cse18) (= .cse19 .cse4))))) .cse7) (or .cse11 (and (or .cse15 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse21 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse20 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse21))))))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse20 .cse6)))))))))))) (not (= .cse21 .cse4)) (= .cse1 .cse20) (= .cse4 .cse20)))))) (or (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse23 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse22 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse23))))))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse22 .cse6)))))))))))) (not (= .cse23 .cse4)) (= .cse4 .cse22))))) .cse7))) (or .cse11 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse25 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse24 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse25))))))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse24))))))) (not (= .cse4 .cse24)) (not (= .cse25 .cse4)))))) .cse7) (or .cse0 (let ((.cse26 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse28 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse27 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse28))))))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse27)))))) (= .cse28 .cse4) (= .cse4 .cse27))))))) (and (or .cse7 .cse26) (or .cse15 .cse26)))) (or (and (or (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse30 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse29 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse30 .cse6))))))) .cse2))))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse29 .cse6))))))))))) (= .cse4 .cse29) (= .cse30 .cse4))))) .cse7) (or .cse15 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse32 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse31 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse32 .cse6))))))) .cse2))))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse31 .cse6))))))))))) (= .cse1 .cse31) (= .cse4 .cse31) (= .cse32 .cse4))))))) .cse0) (or .cse11 (and (or .cse15 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse34 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse33 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse34 .cse6))))))) .cse2))))) (or (= .cse1 .cse33) (= .cse4 .cse33) (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse33 .cse6)))))))))))) (= .cse34 .cse4)))))) (or (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse36 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse35 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse36 .cse6))))))) .cse2))))) (or (= .cse4 .cse35) (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse35 .cse6)))))))))))) (= .cse36 .cse4))))) .cse7))) (or (let ((.cse37 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse39 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse38 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse39))))))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse38)))))) (not (= .cse4 .cse38)) (not (= .cse39 .cse4)))))))) (and (or .cse37 .cse7) (or .cse15 .cse37))) .cse0) (or .cse11 .cse40 .cse41) (or .cse0 .cse9 .cse41) (or .cse11 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse43 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse42 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse43 .cse6))))))) .cse2))))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse42))))))) (not (= .cse4 .cse42)) (= .cse43 .cse4))))) .cse7) (or (and (or (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse45 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse44 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse45))))))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse44 .cse6))))))))))) (not (= .cse45 .cse4)) (= .cse1 .cse44) (= .cse4 .cse44))))) .cse15) (or (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse47 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse46 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse47))))))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse46 .cse6))))))))))) (not (= .cse47 .cse4)) (= .cse4 .cse46))))) .cse7)) .cse0) (or .cse11 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse49 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse48 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse49))))))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse48))))))) (= .cse49 .cse4) (= .cse4 .cse48))))) .cse7) (or .cse0 .cse9 .cse50) (or .cse11 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse52 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse51 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse52))))))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse51))))))) (not (= .cse52 .cse4)) (= .cse4 .cse51))))) .cse7) (or .cse11 .cse40 .cse10) (or .cse0 (and (or (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse54 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse53 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse54 .cse6))))))) .cse2))))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse53)))))) (= .cse4 .cse53) (= .cse54 .cse4))))) .cse7) (or .cse15 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse56 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse55 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse56 .cse6))))))) .cse2))))) (or (= .cse1 .cse55) (= .cse4 .cse55) (= .cse56 .cse4)))))))) (or .cse0 (and (or .cse15 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse58 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse57 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse58))))))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse57 .cse6))))))))))) (= .cse1 .cse57) (= .cse58 .cse4) (= .cse4 .cse57)))))) (or (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse60 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse59 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse60))))))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse59 .cse6))))))))))) (= .cse60 .cse4) (= .cse4 .cse59))))) .cse7))) (or .cse11 .cse40 .cse50) (or (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (not (= ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|) .cse4))) (let ((.cse66 (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse65)))))))) (let ((.cse61 (= .cse4 .cse65)) (.cse62 (or .cse0 .cse66)) (.cse63 (or .cse11 (not .cse66)))) (and (or (not .cse61) (and .cse62 (or .cse11 .cse40) (or .cse0 .cse9) .cse63)) (or .cse61 (let ((.cse64 (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse65 .cse6))))))) .cse2))) .cse1))) (and .cse62 (or .cse11 (not .cse64)) (or .cse0 .cse64) .cse63)))))) (and (or .cse15 .cse9) .cse7)) (or (let ((.cse67 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse69 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse68 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse69))))))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse68)))))) (not (= .cse4 .cse68)) (= .cse69 .cse4))))))) (and (or .cse67 .cse7) (or .cse15 .cse67))) .cse0) (or .cse11 (and (or .cse15 (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse71 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse70 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse71))))))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse70 .cse6)))))))))))) (= .cse1 .cse70) (= .cse71 .cse4) (= .cse4 .cse70)))))) (or (forall ((|ULTIMATE.start_main_~state_6~0#1| (_ BitVec 8))) (let ((.cse73 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|))) (let ((.cse72 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse73))))))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse72 .cse6)))))))))))) (= .cse73 .cse4) (= .cse4 .cse72))))) .cse7)))))))) is different from false [2024-11-14 03:00:38,507 WARN L286 SmtUtils]: Spent 6.60s on a formula simplification that was a NOOP. DAG size: 288 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:00:45,492 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 9 not checked. [2024-11-14 03:00:45,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372876378] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:00:45,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:00:45,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 10, 9] total 23 [2024-11-14 03:00:45,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104522552] [2024-11-14 03:00:45,493 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:00:45,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 03:00:45,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:00:45,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 03:00:45,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=350, Unknown=1, NotChecked=40, Total=506 [2024-11-14 03:00:45,495 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 23 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:54,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:54,485 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-14 03:00:54,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:00:54,486 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-14 03:00:54,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:54,486 INFO L225 Difference]: With dead ends: 19 [2024-11-14 03:00:54,486 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 03:00:54,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 55 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=303, Invalid=630, Unknown=1, NotChecked=58, Total=992 [2024-11-14 03:00:54,488 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 15 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:54,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 15 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:00:54,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 03:00:54,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 03:00:54,489 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 03:00:54,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 03:00:54,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-11-14 03:00:54,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:54,489 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 03:00:54,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:54,490 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 03:00:54,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 03:00:54,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:00:54,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-14 03:00:54,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-14 03:00:54,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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)] Forceful destruction successful, exit code 0 [2024-11-14 03:00:55,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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 03:00:55,101 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-14 03:00:55,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 03:00:56,674 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:00:56,688 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 03:00:56,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:00:56 BoogieIcfgContainer [2024-11-14 03:00:56,693 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:00:56,694 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:00:56,695 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:00:56,695 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:00:56,696 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:59:40" (3/4) ... [2024-11-14 03:00:56,700 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 03:00:56,708 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-14 03:00:56,708 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 03:00:56,709 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 03:00:56,709 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 03:00:56,744 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 03:00:56,749 INFO L158 Benchmark]: Toolchain (without parser) took 77264.89ms. Allocated memory was 142.6MB in the beginning and 436.2MB in the end (delta: 293.6MB). Free memory was 117.3MB in the beginning and 302.1MB in the end (delta: -184.8MB). Peak memory consumption was 107.5MB. Max. memory is 16.1GB. [2024-11-14 03:00:56,749 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:00:56,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.99ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 105.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:00:56,750 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.88ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 103.7MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:00:56,750 INFO L158 Benchmark]: Boogie Preprocessor took 39.62ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 102.8MB in the end (delta: 848.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:00:56,750 INFO L158 Benchmark]: RCFGBuilder took 338.52ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 90.0MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:00:56,750 INFO L158 Benchmark]: TraceAbstraction took 76367.99ms. Allocated memory was 142.6MB in the beginning and 436.2MB in the end (delta: 293.6MB). Free memory was 89.5MB in the beginning and 302.4MB in the end (delta: -213.0MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. [2024-11-14 03:00:56,751 INFO L158 Benchmark]: Witness Printer took 54.49ms. Allocated memory is still 436.2MB. Free memory was 302.4MB in the beginning and 302.1MB in the end (delta: 329.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:00:56,755 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.99ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 105.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.88ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 103.7MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.62ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 102.8MB in the end (delta: 848.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 338.52ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 90.0MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 76367.99ms. Allocated memory was 142.6MB in the beginning and 436.2MB in the end (delta: 293.6MB). Free memory was 89.5MB in the beginning and 302.4MB in the end (delta: -213.0MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. * Witness Printer took 54.49ms. Allocated memory is still 436.2MB. Free memory was 302.4MB in the beginning and 302.1MB in the end (delta: 329.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 74.7s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 10 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 89 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 21.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, InterpolantAutomatonStates: 24, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 62.9s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 46 QuantifiedInterpolants, 55947 SizeOfPredicates, 54 NumberOfNonLiveVariables, 420 ConjunctsInSsa, 156 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 4/102 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: 44]: Loop Invariant Derived loop invariant: (((((((1 == var_5) && (state_6 != 0)) && (15 == mask_SORT_4)) && (0 == var_8)) && (15 == var_18)) && (1 == var_12)) && (1 == mask_SORT_1)) * 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 03:00:56,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e61972-f58f-4d69-b32e-a9095106eb8c/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