./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.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_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5cca11703f101d148385abb3e7759c3ab61c77d034554827e4ca1c3d0123761f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:16:36,918 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:16:37,035 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-13 13:16:37,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:16:37,042 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:16:37,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:16:37,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:16:37,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:16:37,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:16:37,074 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:16:37,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:16:37,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:16:37,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:16:37,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:16:37,077 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:16:37,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:16:37,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:16:37,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:16:37,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:16:37,078 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:16:37,078 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:16:37,078 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:16:37,078 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:16:37,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:16:37,078 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:16:37,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:16:37,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:16:37,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:16:37,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:16:37,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:16:37,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:16:37,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:16:37,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:16:37,080 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:16:37,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:16:37,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:16:37,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:16:37,081 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:16:37,082 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:16:37,082 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd 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 -> Automizer 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 -> 5cca11703f101d148385abb3e7759c3ab61c77d034554827e4ca1c3d0123761f [2024-11-13 13:16:37,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:16:37,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:16:37,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:16:37,418 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:16:37,419 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:16:37,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c Unable to find full path for "g++" [2024-11-13 13:16:39,654 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:16:40,278 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:16:40,278 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c [2024-11-13 13:16:40,308 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/data/6c1dc02da/f466e565d0cd45eeb184648a1da4171a/FLAG5f8c9ae58 [2024-11-13 13:16:40,331 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/data/6c1dc02da/f466e565d0cd45eeb184648a1da4171a [2024-11-13 13:16:40,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:16:40,338 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:16:40,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:16:40,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:16:40,347 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:16:40,348 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:16:40" (1/1) ... [2024-11-13 13:16:40,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54781dcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:40, skipping insertion in model container [2024-11-13 13:16:40,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:16:40" (1/1) ... [2024-11-13 13:16:40,444 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:16:40,739 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_528fc892-2755-4b54-b32e-d66030d5872a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c[1247,1260] [2024-11-13 13:16:41,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:16:41,330 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:16:41,341 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_528fc892-2755-4b54-b32e-d66030d5872a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c[1247,1260] [2024-11-13 13:16:41,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:16:41,599 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:16:41,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:41 WrapperNode [2024-11-13 13:16:41,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:16:41,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:16:41,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:16:41,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:16:41,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:41" (1/1) ... [2024-11-13 13:16:41,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:41" (1/1) ... [2024-11-13 13:16:42,198 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3347 [2024-11-13 13:16:42,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:16:42,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:16:42,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:16:42,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:16:42,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:41" (1/1) ... [2024-11-13 13:16:42,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:41" (1/1) ... [2024-11-13 13:16:42,275 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:41" (1/1) ... [2024-11-13 13:16:42,542 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 13:16:42,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:41" (1/1) ... [2024-11-13 13:16:42,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:41" (1/1) ... [2024-11-13 13:16:42,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:41" (1/1) ... [2024-11-13 13:16:42,726 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:41" (1/1) ... [2024-11-13 13:16:42,778 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:41" (1/1) ... [2024-11-13 13:16:42,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:41" (1/1) ... [2024-11-13 13:16:42,983 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:16:42,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:16:42,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:16:42,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:16:42,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:41" (1/1) ... [2024-11-13 13:16:43,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:16:43,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:16:43,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:16:43,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:16:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:16:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:16:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:16:43,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:16:43,882 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:16:43,885 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:16:49,440 INFO L? ?]: Removed 2326 outVars from TransFormulas that were not future-live. [2024-11-13 13:16:49,440 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:16:49,494 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:16:49,498 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:16:49,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:16:49 BoogieIcfgContainer [2024-11-13 13:16:49,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:16:49,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:16:49,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:16:49,519 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:16:49,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:16:40" (1/3) ... [2024-11-13 13:16:49,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45002e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:16:49, skipping insertion in model container [2024-11-13 13:16:49,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:16:41" (2/3) ... [2024-11-13 13:16:49,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45002e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:16:49, skipping insertion in model container [2024-11-13 13:16:49,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:16:49" (3/3) ... [2024-11-13 13:16:49,525 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_BufAl.c [2024-11-13 13:16:49,550 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:16:49,556 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_BufAl.c that has 1 procedures, 718 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:16:49,695 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:16:49,713 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=PETRI_NET, 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;@6751063f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:16:49,713 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:16:49,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 718 states, 716 states have (on average 1.4986033519553073) internal successors, (1073), 717 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:16:49,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 13:16:49,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:16:49,735 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:16:49,736 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:16:49,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:16:49,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1862643101, now seen corresponding path program 1 times [2024-11-13 13:16:49,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:16:49,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419998568] [2024-11-13 13:16:49,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:16:49,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:16:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:16:51,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:16:51,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:16:51,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419998568] [2024-11-13 13:16:51,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419998568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:16:51,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:16:51,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:16:51,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628030385] [2024-11-13 13:16:51,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:16:51,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:16:51,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:16:51,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:16:51,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:16:51,236 INFO L87 Difference]: Start difference. First operand has 718 states, 716 states have (on average 1.4986033519553073) internal successors, (1073), 717 states have internal predecessors, (1073), 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 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:16:51,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:16:51,482 INFO L93 Difference]: Finished difference Result 1353 states and 2025 transitions. [2024-11-13 13:16:51,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:16:51,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 57 [2024-11-13 13:16:51,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:16:51,519 INFO L225 Difference]: With dead ends: 1353 [2024-11-13 13:16:51,520 INFO L226 Difference]: Without dead ends: 717 [2024-11-13 13:16:51,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:16:51,531 INFO L432 NwaCegarLoop]: 1067 mSDtfsCounter, 0 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:16:51,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3195 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:16:51,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2024-11-13 13:16:51,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2024-11-13 13:16:51,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 716 states have (on average 1.4958100558659218) internal successors, (1071), 716 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:16:51,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1071 transitions. [2024-11-13 13:16:51,639 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1071 transitions. Word has length 57 [2024-11-13 13:16:51,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:16:51,640 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 1071 transitions. [2024-11-13 13:16:51,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:16:51,641 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1071 transitions. [2024-11-13 13:16:51,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 13:16:51,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:16:51,647 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:16:51,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:16:51,648 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:16:51,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:16:51,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1909056774, now seen corresponding path program 1 times [2024-11-13 13:16:51,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:16:51,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387533072] [2024-11-13 13:16:51,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:16:51,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:16:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:16:52,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:16:52,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:16:52,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387533072] [2024-11-13 13:16:52,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387533072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:16:52,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:16:52,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:16:52,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791695493] [2024-11-13 13:16:52,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:16:52,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:16:52,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:16:52,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:16:52,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:16:52,226 INFO L87 Difference]: Start difference. First operand 717 states and 1071 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:16:52,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:16:52,333 INFO L93 Difference]: Finished difference Result 1354 states and 2023 transitions. [2024-11-13 13:16:52,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:16:52,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2024-11-13 13:16:52,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:16:52,342 INFO L225 Difference]: With dead ends: 1354 [2024-11-13 13:16:52,342 INFO L226 Difference]: Without dead ends: 719 [2024-11-13 13:16:52,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:16:52,349 INFO L432 NwaCegarLoop]: 1067 mSDtfsCounter, 0 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:16:52,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3191 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:16:52,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-11-13 13:16:52,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2024-11-13 13:16:52,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 718 states have (on average 1.4944289693593316) internal successors, (1073), 718 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:16:52,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1073 transitions. [2024-11-13 13:16:52,417 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1073 transitions. Word has length 58 [2024-11-13 13:16:52,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:16:52,418 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 1073 transitions. [2024-11-13 13:16:52,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:16:52,419 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1073 transitions. [2024-11-13 13:16:52,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-13 13:16:52,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:16:52,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:16:52,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:16:52,424 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:16:52,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:16:52,424 INFO L85 PathProgramCache]: Analyzing trace with hash -2046747754, now seen corresponding path program 1 times [2024-11-13 13:16:52,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:16:52,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523165154] [2024-11-13 13:16:52,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:16:52,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:16:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:16:53,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:16:53,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:16:53,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523165154] [2024-11-13 13:16:53,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523165154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:16:53,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:16:53,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:16:53,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259355766] [2024-11-13 13:16:53,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:16:53,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:16:53,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:16:53,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:16:53,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:16:53,835 INFO L87 Difference]: Start difference. First operand 719 states and 1073 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:16:54,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:16:54,466 INFO L93 Difference]: Finished difference Result 1354 states and 2022 transitions. [2024-11-13 13:16:54,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:16:54,467 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2024-11-13 13:16:54,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:16:54,471 INFO L225 Difference]: With dead ends: 1354 [2024-11-13 13:16:54,472 INFO L226 Difference]: Without dead ends: 717 [2024-11-13 13:16:54,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:16:54,474 INFO L432 NwaCegarLoop]: 1031 mSDtfsCounter, 1022 mSDsluCounter, 4110 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 5141 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:16:54,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 5141 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:16:54,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2024-11-13 13:16:54,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2024-11-13 13:16:54,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 716 states have (on average 1.4930167597765363) internal successors, (1069), 716 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:16:54,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1069 transitions. [2024-11-13 13:16:54,501 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1069 transitions. Word has length 59 [2024-11-13 13:16:54,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:16:54,502 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 1069 transitions. [2024-11-13 13:16:54,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:16:54,503 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1069 transitions. [2024-11-13 13:16:54,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 13:16:54,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:16:54,507 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:16:54,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:16:54,507 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:16:54,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:16:54,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1755092791, now seen corresponding path program 1 times [2024-11-13 13:16:54,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:16:54,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602502902] [2024-11-13 13:16:54,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:16:54,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:16:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:16:54,618 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:16:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:16:54,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:16:54,848 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:16:54,849 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:16:54,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:16:54,856 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 13:16:54,973 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:16:54,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:16:54 BoogieIcfgContainer [2024-11-13 13:16:54,979 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:16:54,980 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:16:54,980 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:16:54,980 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:16:54,981 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:16:49" (3/4) ... [2024-11-13 13:16:54,985 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 13:16:54,986 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:16:54,988 INFO L158 Benchmark]: Toolchain (without parser) took 14649.03ms. Allocated memory was 142.6MB in the beginning and 755.0MB in the end (delta: 612.4MB). Free memory was 114.3MB in the beginning and 425.1MB in the end (delta: -310.8MB). Peak memory consumption was 308.3MB. Max. memory is 16.1GB. [2024-11-13 13:16:54,988 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:16:54,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1261.45ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 98.6MB in the end (delta: 15.5MB). Peak memory consumption was 96.4MB. Max. memory is 16.1GB. [2024-11-13 13:16:54,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 595.96ms. Allocated memory was 142.6MB in the beginning and 377.5MB in the end (delta: 234.9MB). Free memory was 98.6MB in the beginning and 293.2MB in the end (delta: -194.6MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. [2024-11-13 13:16:54,990 INFO L158 Benchmark]: Boogie Preprocessor took 783.75ms. Allocated memory was 377.5MB in the beginning and 335.5MB in the end (delta: -41.9MB). Free memory was 293.2MB in the beginning and 236.0MB in the end (delta: 57.2MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2024-11-13 13:16:54,991 INFO L158 Benchmark]: RCFGBuilder took 6513.08ms. Allocated memory was 335.5MB in the beginning and 755.0MB in the end (delta: 419.4MB). Free memory was 236.0MB in the beginning and 427.3MB in the end (delta: -191.3MB). Peak memory consumption was 228.1MB. Max. memory is 16.1GB. [2024-11-13 13:16:54,991 INFO L158 Benchmark]: TraceAbstraction took 5473.29ms. Allocated memory is still 755.0MB. Free memory was 425.4MB in the beginning and 425.2MB in the end (delta: 234.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:16:54,991 INFO L158 Benchmark]: Witness Printer took 6.37ms. Allocated memory is still 755.0MB. Free memory was 425.2MB in the beginning and 425.1MB in the end (delta: 42.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:16:54,996 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1261.45ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 98.6MB in the end (delta: 15.5MB). Peak memory consumption was 96.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 595.96ms. Allocated memory was 142.6MB in the beginning and 377.5MB in the end (delta: 234.9MB). Free memory was 98.6MB in the beginning and 293.2MB in the end (delta: -194.6MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 783.75ms. Allocated memory was 377.5MB in the beginning and 335.5MB in the end (delta: -41.9MB). Free memory was 293.2MB in the beginning and 236.0MB in the end (delta: 57.2MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. * RCFGBuilder took 6513.08ms. Allocated memory was 335.5MB in the beginning and 755.0MB in the end (delta: 419.4MB). Free memory was 236.0MB in the beginning and 427.3MB in the end (delta: -191.3MB). Peak memory consumption was 228.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5473.29ms. Allocated memory is still 755.0MB. Free memory was 425.4MB in the beginning and 425.2MB in the end (delta: 234.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.37ms. Allocated memory is still 755.0MB. Free memory was 425.2MB in the beginning and 425.1MB in the end (delta: 42.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 166. 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_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 5); [L33] const SORT_7 msb_SORT_7 = (SORT_7)1 << (5 - 1); [L35] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 32); [L36] const SORT_12 msb_SORT_12 = (SORT_12)1 << (32 - 1); [L38] const SORT_7 var_8 = 0; [L39] const SORT_12 var_14 = 0; [L40] const SORT_1 var_22 = 1; [L41] const SORT_1 var_26 = 0; [L42] const SORT_12 var_29 = 15; [L43] const SORT_12 var_79 = 14; [L44] const SORT_12 var_97 = 13; [L45] const SORT_12 var_115 = 12; [L46] const SORT_12 var_133 = 11; [L47] const SORT_12 var_151 = 10; [L48] const SORT_12 var_169 = 9; [L49] const SORT_12 var_187 = 8; [L50] const SORT_12 var_205 = 7; [L51] const SORT_12 var_223 = 6; [L52] const SORT_12 var_241 = 5; [L53] const SORT_12 var_259 = 4; [L54] const SORT_12 var_277 = 3; [L55] const SORT_12 var_295 = 2; [L56] const SORT_12 var_313 = 1; [L57] const SORT_4 var_352 = 0; [L58] const SORT_12 var_356 = 16; [L60] SORT_1 input_2; [L61] SORT_1 input_3; [L62] SORT_4 input_5; [L63] SORT_1 input_6; [L64] SORT_1 input_391; [L65] SORT_4 input_393; [L66] SORT_1 input_409; [L67] SORT_4 input_413; [L69] EXPR __VERIFIER_nondet_uchar() & mask_SORT_7 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L69] SORT_7 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L70] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L70] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L71] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L72] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L73] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L74] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L75] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L76] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L77] SORT_1 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L78] SORT_1 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L79] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L80] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L81] SORT_1 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L82] SORT_1 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L83] SORT_1 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L84] SORT_1 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L85] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L86] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L87] SORT_1 state_350 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_8=0, var_97=13] [L88] SORT_4 state_353 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L90] SORT_7 init_10_arg_1 = var_8; [L91] state_9 = init_10_arg_1 [L92] SORT_1 init_28_arg_1 = var_26; [L93] state_27 = init_28_arg_1 [L94] SORT_1 init_31_arg_1 = var_26; [L95] state_30 = init_31_arg_1 [L96] SORT_1 init_33_arg_1 = var_26; [L97] state_32 = init_33_arg_1 [L98] SORT_1 init_36_arg_1 = var_26; [L99] state_35 = init_36_arg_1 [L100] SORT_1 init_38_arg_1 = var_26; [L101] state_37 = init_38_arg_1 [L102] SORT_1 init_42_arg_1 = var_26; [L103] state_41 = init_42_arg_1 [L104] SORT_1 init_44_arg_1 = var_26; [L105] state_43 = init_44_arg_1 [L106] SORT_1 init_47_arg_1 = var_26; [L107] state_46 = init_47_arg_1 [L108] SORT_1 init_49_arg_1 = var_26; [L109] state_48 = init_49_arg_1 [L110] SORT_1 init_54_arg_1 = var_26; [L111] state_53 = init_54_arg_1 [L112] SORT_1 init_56_arg_1 = var_26; [L113] state_55 = init_56_arg_1 [L114] SORT_1 init_59_arg_1 = var_26; [L115] state_58 = init_59_arg_1 [L116] SORT_1 init_61_arg_1 = var_26; [L117] state_60 = init_61_arg_1 [L118] SORT_1 init_65_arg_1 = var_26; [L119] state_64 = init_65_arg_1 [L120] SORT_1 init_67_arg_1 = var_26; [L121] state_66 = init_67_arg_1 [L122] SORT_1 init_70_arg_1 = var_26; [L123] state_69 = init_70_arg_1 [L124] SORT_1 init_72_arg_1 = var_26; [L125] state_71 = init_72_arg_1 [L126] SORT_1 init_351_arg_1 = var_26; [L127] state_350 = init_351_arg_1 [L128] SORT_4 init_354_arg_1 = var_352; [L129] state_353 = init_354_arg_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, state_27=0, state_30=0, state_32=0, state_350=0, state_353=0, state_35=0, state_37=0, state_41=0, state_43=0, state_46=0, state_48=0, state_53=0, state_55=0, state_58=0, state_60=0, state_64=0, state_66=0, state_69=0, state_71=0, state_9=0, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_97=13] [L132] input_2 = __VERIFIER_nondet_uchar() [L133] input_3 = __VERIFIER_nondet_uchar() [L134] input_5 = __VERIFIER_nondet_uchar() [L135] input_6 = __VERIFIER_nondet_uchar() [L136] EXPR input_6 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, state_27=0, state_30=0, state_32=0, state_350=0, state_353=0, state_35=0, state_37=0, state_41=0, state_43=0, state_46=0, state_48=0, state_53=0, state_55=0, state_58=0, state_60=0, state_64=0, state_66=0, state_69=0, state_71=0, state_9=0, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_97=13] [L136] input_6 = input_6 & mask_SORT_1 [L137] input_391 = __VERIFIER_nondet_uchar() [L138] input_393 = __VERIFIER_nondet_uchar() [L139] input_409 = __VERIFIER_nondet_uchar() [L140] input_413 = __VERIFIER_nondet_uchar() [L143] SORT_7 var_11_arg_0 = state_9; [L144] SORT_1 var_11 = var_11_arg_0 >> 4; [L145] SORT_1 var_13_arg_0 = var_11; VAL [input_6=0, mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, state_27=0, state_30=0, state_32=0, state_350=0, state_353=0, state_35=0, state_37=0, state_41=0, state_43=0, state_46=0, state_48=0, state_53=0, state_55=0, state_58=0, state_60=0, state_64=0, state_66=0, state_69=0, state_71=0, state_9=0, var_115=12, var_133=11, var_13_arg_0=0, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_97=13] [L146] EXPR var_13_arg_0 & mask_SORT_1 VAL [input_6=0, mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, state_27=0, state_30=0, state_32=0, state_350=0, state_353=0, state_35=0, state_37=0, state_41=0, state_43=0, state_46=0, state_48=0, state_53=0, state_55=0, state_58=0, state_60=0, state_64=0, state_66=0, state_69=0, state_71=0, state_9=0, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_97=13] [L146] var_13_arg_0 = var_13_arg_0 & mask_SORT_1 [L147] SORT_12 var_13 = var_13_arg_0; [L148] SORT_12 var_15_arg_0 = var_13; [L149] SORT_12 var_15_arg_1 = var_14; [L150] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L151] SORT_7 var_16_arg_0 = state_9; [L152] SORT_4 var_16 = var_16_arg_0 >> 0; [L153] SORT_4 var_17_arg_0 = var_16; VAL [input_6=0, mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, state_27=0, state_30=0, state_32=0, state_350=0, state_353=0, state_35=0, state_37=0, state_41=0, state_43=0, state_46=0, state_48=0, state_53=0, state_55=0, state_58=0, state_60=0, state_64=0, state_66=0, state_69=0, state_71=0, state_9=0, var_115=12, var_133=11, var_14=0, var_151=10, var_15=1, var_169=9, var_17_arg_0=0, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_97=13] [L154] EXPR var_17_arg_0 & mask_SORT_4 VAL [input_6=0, mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, state_27=0, state_30=0, state_32=0, state_350=0, state_353=0, state_35=0, state_37=0, state_41=0, state_43=0, state_46=0, state_48=0, state_53=0, state_55=0, state_58=0, state_60=0, state_64=0, state_66=0, state_69=0, state_71=0, state_9=0, var_115=12, var_133=11, var_14=0, var_151=10, var_15=1, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_97=13] [L154] var_17_arg_0 = var_17_arg_0 & mask_SORT_4 [L155] SORT_12 var_17 = var_17_arg_0; [L156] SORT_12 var_18_arg_0 = var_17; [L157] SORT_12 var_18_arg_1 = var_14; [L158] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L159] SORT_1 var_19_arg_0 = var_15; [L160] SORT_1 var_19_arg_1 = var_18; VAL [input_6=0, mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, state_27=0, state_30=0, state_32=0, state_350=0, state_353=0, state_35=0, state_37=0, state_41=0, state_43=0, state_46=0, state_48=0, state_53=0, state_55=0, state_58=0, state_60=0, state_64=0, state_66=0, state_69=0, state_71=0, state_9=0, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_19_arg_0=1, var_19_arg_1=1, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_97=13] [L161] EXPR var_19_arg_0 | var_19_arg_1 VAL [input_6=0, mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, state_27=0, state_30=0, state_32=0, state_350=0, state_353=0, state_35=0, state_37=0, state_41=0, state_43=0, state_46=0, state_48=0, state_53=0, state_55=0, state_58=0, state_60=0, state_64=0, state_66=0, state_69=0, state_71=0, state_9=0, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_97=13] [L161] SORT_1 var_19 = var_19_arg_0 | var_19_arg_1; [L162] SORT_1 var_23_arg_0 = var_19; [L163] SORT_1 var_23 = ~var_23_arg_0; [L164] SORT_1 var_24_arg_0 = var_22; [L165] SORT_1 var_24_arg_1 = var_23; VAL [input_6=0, mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, state_27=0, state_30=0, state_32=0, state_350=0, state_353=0, state_35=0, state_37=0, state_41=0, state_43=0, state_46=0, state_48=0, state_53=0, state_55=0, state_58=0, state_60=0, state_64=0, state_66=0, state_69=0, state_71=0, state_9=0, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_24_arg_0=1, var_24_arg_1=-2, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_97=13] [L166] EXPR var_24_arg_0 & var_24_arg_1 VAL [input_6=0, mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, state_27=0, state_30=0, state_32=0, state_350=0, state_353=0, state_35=0, state_37=0, state_41=0, state_43=0, state_46=0, state_48=0, state_53=0, state_55=0, state_58=0, state_60=0, state_64=0, state_66=0, state_69=0, state_71=0, state_9=0, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_97=13] [L166] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L167] EXPR var_24 & mask_SORT_1 VAL [input_6=0, mask_SORT_1=1, mask_SORT_4=15, mask_SORT_7=31, state_27=0, state_30=0, state_32=0, state_350=0, state_353=0, state_35=0, state_37=0, state_41=0, state_43=0, state_46=0, state_48=0, state_53=0, state_55=0, state_58=0, state_60=0, state_64=0, state_66=0, state_69=0, state_71=0, state_9=0, var_115=12, var_133=11, var_14=0, var_151=10, var_169=9, var_187=8, var_205=7, var_223=6, var_22=1, var_241=5, var_259=4, var_26=0, var_277=3, var_295=2, var_29=15, var_313=1, var_352=0, var_356=16, var_79=14, var_97=13] [L167] var_24 = var_24 & mask_SORT_1 [L168] SORT_1 bad_25_arg_0 = var_24; [L169] CALL __VERIFIER_assert(!(bad_25_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 718 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1022 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1022 mSDsluCounter, 11527 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8362 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 204 IncrementalHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 3165 mSDtfsCounter, 204 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=719occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 234 NumberOfCodeBlocks, 234 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 171 ConstructedInterpolants, 0 QuantifiedInterpolants, 335 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 13:16:55,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5cca11703f101d148385abb3e7759c3ab61c77d034554827e4ca1c3d0123761f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:16:58,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:16:58,625 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-13 13:16:58,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:16:58,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:16:58,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:16:58,700 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:16:58,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:16:58,701 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:16:58,701 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:16:58,702 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:16:58,703 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:16:58,703 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:16:58,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:16:58,704 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:16:58,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:16:58,705 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:16:58,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:16:58,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:16:58,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:16:58,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:16:58,705 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:16:58,705 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 13:16:58,706 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:16:58,706 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 13:16:58,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:16:58,706 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:16:58,706 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:16:58,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:16:58,707 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:16:58,707 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:16:58,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:16:58,708 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:16:58,708 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:16:58,708 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:16:58,708 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 13:16:58,709 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 13:16:58,709 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:16:58,709 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:16:58,710 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:16:58,710 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:16:58,710 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd 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 -> Automizer 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 -> 5cca11703f101d148385abb3e7759c3ab61c77d034554827e4ca1c3d0123761f [2024-11-13 13:16:59,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:16:59,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:16:59,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:16:59,163 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:16:59,164 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:16:59,165 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c Unable to find full path for "g++" [2024-11-13 13:17:01,446 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:17:01,939 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:17:01,944 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c [2024-11-13 13:17:01,974 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/data/8203e7c5d/0734a429e1044abc9eabc0b45a5a1935/FLAG949047346 [2024-11-13 13:17:02,001 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/data/8203e7c5d/0734a429e1044abc9eabc0b45a5a1935 [2024-11-13 13:17:02,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:17:02,005 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:17:02,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:17:02,008 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:17:02,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:17:02,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:17:02" (1/1) ... [2024-11-13 13:17:02,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46afd684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:02, skipping insertion in model container [2024-11-13 13:17:02,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:17:02" (1/1) ... [2024-11-13 13:17:02,100 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:17:02,353 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_528fc892-2755-4b54-b32e-d66030d5872a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c[1247,1260] [2024-11-13 13:17:02,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:17:02,852 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:17:02,868 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_528fc892-2755-4b54-b32e-d66030d5872a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_BufAl.c[1247,1260] [2024-11-13 13:17:03,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:17:03,144 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:17:03,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:03 WrapperNode [2024-11-13 13:17:03,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:17:03,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:17:03,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:17:03,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:17:03,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:03" (1/1) ... [2024-11-13 13:17:03,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:03" (1/1) ... [2024-11-13 13:17:03,335 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1931 [2024-11-13 13:17:03,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:17:03,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:17:03,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:17:03,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:17:03,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:03" (1/1) ... [2024-11-13 13:17:03,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:03" (1/1) ... [2024-11-13 13:17:03,379 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:03" (1/1) ... [2024-11-13 13:17:03,419 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 13:17:03,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:03" (1/1) ... [2024-11-13 13:17:03,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:03" (1/1) ... [2024-11-13 13:17:03,480 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:03" (1/1) ... [2024-11-13 13:17:03,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:03" (1/1) ... [2024-11-13 13:17:03,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:03" (1/1) ... [2024-11-13 13:17:03,515 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:03" (1/1) ... [2024-11-13 13:17:03,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:17:03,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:17:03,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:17:03,551 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:17:03,552 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:03" (1/1) ... [2024-11-13 13:17:03,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:17:03,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:17:03,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:17:03,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:17:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:17:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 13:17:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:17:03,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:17:04,204 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:17:04,206 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:17:13,912 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-11-13 13:17:13,912 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:17:13,923 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:17:13,923 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:17:13,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:17:13 BoogieIcfgContainer [2024-11-13 13:17:13,924 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:17:13,927 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:17:13,927 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:17:13,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:17:13,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:17:02" (1/3) ... [2024-11-13 13:17:13,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a47a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:17:13, skipping insertion in model container [2024-11-13 13:17:13,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:03" (2/3) ... [2024-11-13 13:17:13,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a47a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:17:13, skipping insertion in model container [2024-11-13 13:17:13,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:17:13" (3/3) ... [2024-11-13 13:17:13,937 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_BufAl.c [2024-11-13 13:17:13,957 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:17:13,960 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_BufAl.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:17:14,028 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:17:14,047 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=PETRI_NET, 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;@192fad76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:17:14,048 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:17:14,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:17:14,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 13:17:14,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:17:14,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 13:17:14,061 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:17:14,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:17:14,067 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-13 13:17:14,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:17:14,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496181309] [2024-11-13 13:17:14,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:17:14,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:17:14,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:17:14,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:17:14,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:17:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:17:14,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 13:17:14,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:17:15,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:17:15,044 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:17:15,045 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:17:15,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496181309] [2024-11-13 13:17:15,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496181309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:17:15,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:17:15,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:17:15,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873393545] [2024-11-13 13:17:15,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:17:15,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:17:15,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:17:15,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:17:15,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:17:15,088 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:17:15,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:17:15,260 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-13 13:17:15,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:17:15,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-13 13:17:15,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:17:15,271 INFO L225 Difference]: With dead ends: 18 [2024-11-13 13:17:15,272 INFO L226 Difference]: Without dead ends: 10 [2024-11-13 13:17:15,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:17:15,278 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:17:15,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:17:15,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-13 13:17:15,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-13 13:17:15,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:17:15,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-13 13:17:15,316 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-13 13:17:15,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:17:15,317 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-13 13:17:15,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:17:15,317 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-13 13:17:15,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 13:17:15,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:17:15,318 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-13 13:17:15,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 13:17:15,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:17:15,519 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:17:15,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:17:15,520 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-13 13:17:15,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:17:15,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [801243714] [2024-11-13 13:17:15,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:17:15,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:17:15,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:17:15,530 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:17:15,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528fc892-2755-4b54-b32e-d66030d5872a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:17:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:17:16,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 13:17:16,507 INFO L278 TraceCheckSpWp]: Computing forward predicates...