./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.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_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/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_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/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_df535d1d-d603-4973-8aaa-23c363fca3c1/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 5963c871d6c136110dcc88c8949de566dbe1e9259aea809264af87f26dad49d7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:28:44,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:28:44,288 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-13 14:28:44,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:28:44,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:28:44,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:28:44,318 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:28:44,318 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:28:44,318 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:28:44,319 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:28:44,319 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:28:44,319 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:28:44,319 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:28:44,319 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:28:44,319 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:28:44,319 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:28:44,320 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:28:44,320 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:28:44,320 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:28:44,320 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:28:44,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:28:44,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:28:44,320 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:28:44,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:28:44,320 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:28:44,321 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:28:44,321 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:28:44,321 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:28:44,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:28:44,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:28:44,321 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:28:44,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:28:44,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:28:44,322 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:28:44,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:28:44,322 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:28:44,322 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:28:44,322 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:28:44,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:28:44,322 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_df535d1d-d603-4973-8aaa-23c363fca3c1/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 -> 5963c871d6c136110dcc88c8949de566dbe1e9259aea809264af87f26dad49d7 [2024-11-13 14:28:44,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:28:44,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:28:44,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:28:44,644 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:28:44,644 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:28:44,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c Unable to find full path for "g++" [2024-11-13 14:28:46,472 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:28:46,793 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:28:46,797 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c [2024-11-13 14:28:46,805 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/data/523a8407f/20ed86d7b72342ccab4f041aa7fb7205/FLAGae9bd0ecc [2024-11-13 14:28:46,829 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/data/523a8407f/20ed86d7b72342ccab4f041aa7fb7205 [2024-11-13 14:28:46,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:28:46,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:28:46,835 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:28:46,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:28:46,841 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:28:46,842 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:46" (1/1) ... [2024-11-13 14:28:46,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@558b7e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:46, skipping insertion in model container [2024-11-13 14:28:46,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:46" (1/1) ... [2024-11-13 14:28:46,872 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:28:47,062 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_df535d1d-d603-4973-8aaa-23c363fca3c1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c[1246,1259] [2024-11-13 14:28:47,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:28:47,146 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:28:47,159 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_df535d1d-d603-4973-8aaa-23c363fca3c1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c[1246,1259] [2024-11-13 14:28:47,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:28:47,230 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:28:47,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47 WrapperNode [2024-11-13 14:28:47,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:28:47,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:28:47,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:28:47,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:28:47,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2024-11-13 14:28:47,258 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2024-11-13 14:28:47,312 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 211 [2024-11-13 14:28:47,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:28:47,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:28:47,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:28:47,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:28:47,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2024-11-13 14:28:47,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2024-11-13 14:28:47,328 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2024-11-13 14:28:47,361 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 14:28:47,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2024-11-13 14:28:47,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2024-11-13 14:28:47,376 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2024-11-13 14:28:47,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2024-11-13 14:28:47,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2024-11-13 14:28:47,388 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2024-11-13 14:28:47,391 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:28:47,392 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:28:47,392 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:28:47,392 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:28:47,393 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (1/1) ... [2024-11-13 14:28:47,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:28:47,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:47,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:28:47,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:28:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:28:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:28:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:28:47,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:28:47,604 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:28:47,607 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:28:48,184 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-11-13 14:28:48,184 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:28:48,195 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:28:48,195 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:28:48,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:48 BoogieIcfgContainer [2024-11-13 14:28:48,196 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:28:48,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:28:48,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:28:48,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:28:48,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:28:46" (1/3) ... [2024-11-13 14:28:48,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0480d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:48, skipping insertion in model container [2024-11-13 14:28:48,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:47" (2/3) ... [2024-11-13 14:28:48,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0480d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:48, skipping insertion in model container [2024-11-13 14:28:48,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:48" (3/3) ... [2024-11-13 14:28:48,206 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal181.c [2024-11-13 14:28:48,222 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:28:48,224 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cal181.c that has 1 procedures, 54 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:28:48,279 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:28:48,292 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;@15677ce1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:28:48,292 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:28:48,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 53 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:48,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 14:28:48,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:48,303 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] [2024-11-13 14:28:48,304 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:48,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:48,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1135438275, now seen corresponding path program 1 times [2024-11-13 14:28:48,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:48,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453315642] [2024-11-13 14:28:48,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:48,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:48,988 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 14:28:48,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:48,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453315642] [2024-11-13 14:28:48,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453315642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:48,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:48,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:28:48,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795271771] [2024-11-13 14:28:48,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:48,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:28:49,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:49,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:28:49,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:28:49,025 INFO L87 Difference]: Start difference. First operand has 54 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 53 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:49,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:49,080 INFO L93 Difference]: Finished difference Result 89 states and 129 transitions. [2024-11-13 14:28:49,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:28:49,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-13 14:28:49,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:49,090 INFO L225 Difference]: With dead ends: 89 [2024-11-13 14:28:49,090 INFO L226 Difference]: Without dead ends: 53 [2024-11-13 14:28:49,093 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 14:28:49,096 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:49,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 207 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:49,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-13 14:28:49,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-13 14:28:49,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 52 states have internal predecessors, (75), 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 14:28:49,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2024-11-13 14:28:49,137 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 23 [2024-11-13 14:28:49,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:49,138 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2024-11-13 14:28:49,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:49,138 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2024-11-13 14:28:49,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 14:28:49,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:49,140 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] [2024-11-13 14:28:49,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:28:49,141 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:49,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:49,141 INFO L85 PathProgramCache]: Analyzing trace with hash 840543427, now seen corresponding path program 1 times [2024-11-13 14:28:49,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:49,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098046387] [2024-11-13 14:28:49,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:49,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:49,407 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 14:28:49,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:49,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098046387] [2024-11-13 14:28:49,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098046387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:49,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:49,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:28:49,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781225621] [2024-11-13 14:28:49,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:49,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:28:49,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:49,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:28:49,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:28:49,412 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 14:28:49,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:49,469 INFO L93 Difference]: Finished difference Result 90 states and 127 transitions. [2024-11-13 14:28:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:28:49,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2024-11-13 14:28:49,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:49,471 INFO L225 Difference]: With dead ends: 90 [2024-11-13 14:28:49,473 INFO L226 Difference]: Without dead ends: 55 [2024-11-13 14:28:49,473 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 14:28:49,474 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 203 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 14:28:49,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 203 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:49,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-13 14:28:49,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-13 14:28:49,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 54 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:49,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 77 transitions. [2024-11-13 14:28:49,485 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 77 transitions. Word has length 24 [2024-11-13 14:28:49,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:49,487 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 77 transitions. [2024-11-13 14:28:49,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 14:28:49,487 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 77 transitions. [2024-11-13 14:28:49,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 14:28:49,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:49,489 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] [2024-11-13 14:28:49,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:28:49,490 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:49,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:49,490 INFO L85 PathProgramCache]: Analyzing trace with hash -810923364, now seen corresponding path program 1 times [2024-11-13 14:28:49,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:49,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421847685] [2024-11-13 14:28:49,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:49,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:50,010 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 14:28:50,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:50,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421847685] [2024-11-13 14:28:50,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421847685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:50,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:50,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:28:50,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344887194] [2024-11-13 14:28:50,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:50,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:28:50,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:50,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:28:50,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:28:50,015 INFO L87 Difference]: Start difference. First operand 55 states and 77 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:50,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:50,169 INFO L93 Difference]: Finished difference Result 121 states and 167 transitions. [2024-11-13 14:28:50,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:28:50,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-13 14:28:50,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:50,172 INFO L225 Difference]: With dead ends: 121 [2024-11-13 14:28:50,172 INFO L226 Difference]: Without dead ends: 84 [2024-11-13 14:28:50,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:28:50,173 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 141 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:50,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 254 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:28:50,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-13 14:28:50,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 65. [2024-11-13 14:28:50,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.421875) internal successors, (91), 64 states have internal predecessors, (91), 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 14:28:50,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 91 transitions. [2024-11-13 14:28:50,187 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 91 transitions. Word has length 25 [2024-11-13 14:28:50,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:50,187 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 91 transitions. [2024-11-13 14:28:50,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:50,187 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2024-11-13 14:28:50,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 14:28:50,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:50,188 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] [2024-11-13 14:28:50,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:28:50,188 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:50,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:50,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1540066410, now seen corresponding path program 1 times [2024-11-13 14:28:50,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:50,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496428831] [2024-11-13 14:28:50,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:50,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:50,612 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 14:28:50,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:50,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496428831] [2024-11-13 14:28:50,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496428831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:50,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:50,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 14:28:50,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139206588] [2024-11-13 14:28:50,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:50,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:28:50,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:50,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:28:50,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:28:50,614 INFO L87 Difference]: Start difference. First operand 65 states and 91 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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 14:28:50,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:50,805 INFO L93 Difference]: Finished difference Result 123 states and 169 transitions. [2024-11-13 14:28:50,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:28:50,807 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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 26 [2024-11-13 14:28:50,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:50,808 INFO L225 Difference]: With dead ends: 123 [2024-11-13 14:28:50,808 INFO L226 Difference]: Without dead ends: 86 [2024-11-13 14:28:50,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:28:50,809 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 144 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:50,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 368 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:28:50,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-13 14:28:50,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 68. [2024-11-13 14:28:50,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 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 14:28:50,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 95 transitions. [2024-11-13 14:28:50,824 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 95 transitions. Word has length 26 [2024-11-13 14:28:50,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:50,824 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 95 transitions. [2024-11-13 14:28:50,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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 14:28:50,824 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 95 transitions. [2024-11-13 14:28:50,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 14:28:50,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:50,825 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] [2024-11-13 14:28:50,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:28:50,826 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:50,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:50,827 INFO L85 PathProgramCache]: Analyzing trace with hash 816764857, now seen corresponding path program 1 times [2024-11-13 14:28:50,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:50,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638194879] [2024-11-13 14:28:50,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:50,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:51,538 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 14:28:51,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:51,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638194879] [2024-11-13 14:28:51,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638194879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:51,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:51,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:28:51,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055956686] [2024-11-13 14:28:51,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:51,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:28:51,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:51,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:28:51,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:28:51,540 INFO L87 Difference]: Start difference. First operand 68 states and 95 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:51,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:51,817 INFO L93 Difference]: Finished difference Result 123 states and 168 transitions. [2024-11-13 14:28:51,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:28:51,818 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-13 14:28:51,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:51,819 INFO L225 Difference]: With dead ends: 123 [2024-11-13 14:28:51,819 INFO L226 Difference]: Without dead ends: 86 [2024-11-13 14:28:51,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:28:51,820 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 139 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:51,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 350 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:28:51,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-13 14:28:51,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 72. [2024-11-13 14:28:51,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.408450704225352) internal successors, (100), 71 states have internal predecessors, (100), 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 14:28:51,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 100 transitions. [2024-11-13 14:28:51,831 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 100 transitions. Word has length 27 [2024-11-13 14:28:51,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:51,832 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 100 transitions. [2024-11-13 14:28:51,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:51,832 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2024-11-13 14:28:51,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-13 14:28:51,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:51,834 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] [2024-11-13 14:28:51,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:28:51,834 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:51,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:51,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1114452009, now seen corresponding path program 1 times [2024-11-13 14:28:51,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:51,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977386818] [2024-11-13 14:28:51,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:51,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:28:51,872 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:28:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:28:51,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:28:51,944 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:28:51,945 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 14:28:51,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:28:51,952 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-13 14:28:52,001 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:28:52,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:28:52 BoogieIcfgContainer [2024-11-13 14:28:52,007 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:28:52,008 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:28:52,008 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:28:52,008 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:28:52,009 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:48" (3/4) ... [2024-11-13 14:28:52,012 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:28:52,013 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:28:52,016 INFO L158 Benchmark]: Toolchain (without parser) took 5180.58ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 109.7MB in the end (delta: 9.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-11-13 14:28:52,016 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 167.8MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:28:52,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.93ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 105.8MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:28:52,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.30ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 102.0MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:28:52,017 INFO L158 Benchmark]: Boogie Preprocessor took 78.75ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 99.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:28:52,018 INFO L158 Benchmark]: RCFGBuilder took 803.83ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 73.3MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 14:28:52,018 INFO L158 Benchmark]: TraceAbstraction took 3808.81ms. Allocated memory is still 142.6MB. Free memory was 73.0MB in the beginning and 109.7MB in the end (delta: -36.7MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2024-11-13 14:28:52,018 INFO L158 Benchmark]: Witness Printer took 5.04ms. Allocated memory is still 142.6MB. Free memory was 109.7MB in the beginning and 109.7MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:28:52,023 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 167.8MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.93ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 105.8MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.30ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 102.0MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.75ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 99.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 803.83ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 73.3MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3808.81ms. Allocated memory is still 142.6MB. Free memory was 73.0MB in the beginning and 109.7MB in the end (delta: -36.7MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * Witness Printer took 5.04ms. Allocated memory is still 142.6MB. Free memory was 109.7MB in the beginning and 109.7MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 79, overapproximation of bitwiseAnd at line 84. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 32); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (32 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L32] const SORT_3 var_7 = 0; [L33] const SORT_1 var_11 = 0; [L34] const SORT_3 var_24 = 1; [L36] SORT_1 input_2; [L37] SORT_3 input_4; [L38] SORT_1 input_5; [L39] SORT_1 input_6; [L41] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_1=-1, mask_SORT_3=1, var_11=0, var_24=1, var_7=0] [L41] SORT_3 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L42] EXPR __VERIFIER_nondet_uint() & mask_SORT_1 VAL [mask_SORT_1=-1, mask_SORT_3=1, var_11=0, var_24=1, var_7=0] [L42] SORT_1 state_12 = __VERIFIER_nondet_uint() & mask_SORT_1; [L43] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_1=-1, mask_SORT_3=1, var_11=0, var_24=1, var_7=0] [L43] SORT_3 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L44] EXPR __VERIFIER_nondet_uint() & mask_SORT_1 VAL [mask_SORT_1=-1, mask_SORT_3=1, var_11=0, var_24=1, var_7=0] [L44] SORT_1 state_17 = __VERIFIER_nondet_uint() & mask_SORT_1; [L46] SORT_3 init_9_arg_1 = var_7; [L47] state_8 = init_9_arg_1 [L48] SORT_1 init_13_arg_1 = var_11; [L49] state_12 = init_13_arg_1 [L50] SORT_3 init_15_arg_1 = var_7; [L51] state_14 = init_15_arg_1 [L52] SORT_1 init_18_arg_1 = var_11; [L53] state_17 = init_18_arg_1 VAL [mask_SORT_1=-1, mask_SORT_3=1, state_12=0, state_14=0, state_17=0, state_8=0, var_11=0, var_24=1, var_7=0] [L56] input_2 = __VERIFIER_nondet_uint() [L57] input_4 = __VERIFIER_nondet_uchar() [L58] input_5 = __VERIFIER_nondet_uint() [L59] input_6 = __VERIFIER_nondet_uint() [L62] SORT_3 var_10_arg_0 = state_8; [L63] SORT_3 var_10 = ~var_10_arg_0; [L64] SORT_3 var_16_arg_0 = state_14; [L65] SORT_1 var_16_arg_1 = state_12; [L66] SORT_1 var_16_arg_2 = input_2; [L67] SORT_1 var_16 = var_16_arg_0 ? var_16_arg_1 : var_16_arg_2; VAL [input_2=0, mask_SORT_1=-1, mask_SORT_3=1, state_14=0, state_17=0, state_8=0, var_10=-1, var_11=0, var_16=0, var_24=1, var_7=0] [L68] EXPR var_16 & mask_SORT_1 VAL [input_2=0, mask_SORT_1=-1, mask_SORT_3=1, state_14=0, state_17=0, state_8=0, var_10=-1, var_11=0, var_24=1, var_7=0] [L68] var_16 = var_16 & mask_SORT_1 [L69] SORT_3 var_19_arg_0 = state_14; [L70] SORT_1 var_19_arg_1 = state_17; [L71] SORT_1 var_19_arg_2 = input_2; [L72] SORT_1 var_19 = var_19_arg_0 ? var_19_arg_1 : var_19_arg_2; VAL [mask_SORT_1=-1, mask_SORT_3=1, state_8=0, var_10=-1, var_11=0, var_16=0, var_19=0, var_24=1, var_7=0] [L73] EXPR var_19 & mask_SORT_1 VAL [mask_SORT_1=-1, mask_SORT_3=1, state_8=0, var_10=-1, var_11=0, var_16=0, var_24=1, var_7=0] [L73] var_19 = var_19 & mask_SORT_1 [L74] SORT_1 var_20_arg_0 = var_16; [L75] SORT_1 var_20_arg_1 = var_19; [L76] SORT_3 var_20 = var_20_arg_0 == var_20_arg_1; [L77] SORT_3 var_21_arg_0 = var_10; [L78] SORT_3 var_21_arg_1 = var_20; VAL [mask_SORT_1=-1, mask_SORT_3=1, state_8=0, var_11=0, var_16=0, var_21_arg_0=-1, var_21_arg_1=1, var_24=1, var_7=0] [L79] EXPR var_21_arg_0 | var_21_arg_1 VAL [mask_SORT_1=-1, mask_SORT_3=1, state_8=0, var_11=0, var_16=0, var_24=1, var_7=0] [L79] SORT_3 var_21 = var_21_arg_0 | var_21_arg_1; [L80] SORT_3 var_25_arg_0 = var_21; [L81] SORT_3 var_25 = ~var_25_arg_0; [L82] SORT_3 var_26_arg_0 = var_24; [L83] SORT_3 var_26_arg_1 = var_25; VAL [mask_SORT_1=-1, mask_SORT_3=1, state_8=0, var_11=0, var_16=0, var_24=1, var_26_arg_0=1, var_26_arg_1=-1, var_7=0] [L84] EXPR var_26_arg_0 & var_26_arg_1 VAL [mask_SORT_1=-1, mask_SORT_3=1, state_8=0, var_11=0, var_16=0, var_24=1, var_7=0] [L84] SORT_3 var_26 = var_26_arg_0 & var_26_arg_1; [L85] EXPR var_26 & mask_SORT_3 VAL [mask_SORT_1=-1, mask_SORT_3=1, state_8=0, var_11=0, var_16=0, var_24=1, var_7=0] [L85] var_26 = var_26 & mask_SORT_3 [L86] SORT_3 bad_27_arg_0 = var_26; [L87] CALL __VERIFIER_assert(!(bad_27_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 424 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 424 mSDsluCounter, 1382 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1057 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 223 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 325 mSDtfsCounter, 223 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=5, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 51 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 421 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 14:28:52,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/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_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/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_df535d1d-d603-4973-8aaa-23c363fca3c1/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 5963c871d6c136110dcc88c8949de566dbe1e9259aea809264af87f26dad49d7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:28:54,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:28:54,928 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-13 14:28:54,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:28:54,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:28:54,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:28:54,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:28:54,995 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:28:54,995 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:28:54,996 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:28:54,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:28:54,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:28:54,997 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:28:54,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:28:54,998 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:28:54,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:28:54,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:28:54,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:28:54,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:28:54,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:28:54,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:28:54,999 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 14:28:54,999 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 14:28:54,999 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:28:54,999 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 14:28:54,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:28:55,000 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:28:55,000 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:28:55,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:28:55,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:28:55,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:28:55,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:28:55,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:28:55,001 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:28:55,001 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:28:55,002 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 14:28:55,002 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 14:28:55,002 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:28:55,002 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:28:55,002 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:28:55,002 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:28:55,002 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_df535d1d-d603-4973-8aaa-23c363fca3c1/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 -> 5963c871d6c136110dcc88c8949de566dbe1e9259aea809264af87f26dad49d7 [2024-11-13 14:28:55,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:28:55,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:28:55,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:28:55,333 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:28:55,334 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:28:55,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c Unable to find full path for "g++" [2024-11-13 14:28:57,312 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:28:57,570 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:28:57,571 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c [2024-11-13 14:28:57,579 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/data/c54cb68d6/c9fe71e0961e46759fab13a54bcf7d2a/FLAGdc0c44579 [2024-11-13 14:28:57,595 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/data/c54cb68d6/c9fe71e0961e46759fab13a54bcf7d2a [2024-11-13 14:28:57,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:28:57,600 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:28:57,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:28:57,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:28:57,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:28:57,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:57" (1/1) ... [2024-11-13 14:28:57,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c874291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57, skipping insertion in model container [2024-11-13 14:28:57,608 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:57" (1/1) ... [2024-11-13 14:28:57,627 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:28:57,810 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_df535d1d-d603-4973-8aaa-23c363fca3c1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c[1246,1259] [2024-11-13 14:28:57,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:28:57,905 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:28:57,920 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_df535d1d-d603-4973-8aaa-23c363fca3c1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c[1246,1259] [2024-11-13 14:28:57,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:28:57,980 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:28:57,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57 WrapperNode [2024-11-13 14:28:57,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:28:57,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:28:57,983 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:28:57,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:28:57,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57" (1/1) ... [2024-11-13 14:28:58,003 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57" (1/1) ... [2024-11-13 14:28:58,034 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 123 [2024-11-13 14:28:58,034 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:28:58,035 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:28:58,038 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:28:58,038 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:28:58,046 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57" (1/1) ... [2024-11-13 14:28:58,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57" (1/1) ... [2024-11-13 14:28:58,049 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57" (1/1) ... [2024-11-13 14:28:58,061 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 14:28:58,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57" (1/1) ... [2024-11-13 14:28:58,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57" (1/1) ... [2024-11-13 14:28:58,066 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57" (1/1) ... [2024-11-13 14:28:58,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57" (1/1) ... [2024-11-13 14:28:58,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57" (1/1) ... [2024-11-13 14:28:58,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57" (1/1) ... [2024-11-13 14:28:58,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:28:58,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:28:58,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:28:58,076 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:28:58,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57" (1/1) ... [2024-11-13 14:28:58,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:28:58,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:58,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:28:58,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:28:58,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:28:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 14:28:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:28:58,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:28:58,244 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:28:58,246 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:28:58,462 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-13 14:28:58,462 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:28:58,471 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:28:58,471 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:28:58,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:58 BoogieIcfgContainer [2024-11-13 14:28:58,472 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:28:58,475 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:28:58,475 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:28:58,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:28:58,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:28:57" (1/3) ... [2024-11-13 14:28:58,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5556810b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:58, skipping insertion in model container [2024-11-13 14:28:58,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:57" (2/3) ... [2024-11-13 14:28:58,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5556810b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:58, skipping insertion in model container [2024-11-13 14:28:58,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:58" (3/3) ... [2024-11-13 14:28:58,483 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal181.c [2024-11-13 14:28:58,499 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:28:58,501 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cal181.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:28:58,558 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:28:58,573 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;@34798670, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:28:58,574 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:28:58,579 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 14:28:58,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 14:28:58,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:58,586 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 14:28:58,587 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:58,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:58,593 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-13 14:28:58,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:28:58,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673968796] [2024-11-13 14:28:58,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:58,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:58,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:58,609 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:58,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:28:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:58,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:28:58,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:59,085 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 14:28:59,086 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:28:59,086 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:28:59,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673968796] [2024-11-13 14:28:59,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673968796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:59,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:59,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:28:59,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555974024] [2024-11-13 14:28:59,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:59,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:28:59,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:28:59,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:28:59,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:28:59,120 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 14:28:59,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:59,181 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-13 14:28:59,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:28:59,185 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 14:28:59,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:59,191 INFO L225 Difference]: With dead ends: 18 [2024-11-13 14:28:59,192 INFO L226 Difference]: Without dead ends: 10 [2024-11-13 14:28:59,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:28:59,198 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:59,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:59,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-13 14:28:59,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-13 14:28:59,224 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 14:28:59,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-13 14:28:59,233 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-13 14:28:59,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:59,233 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-13 14:28:59,234 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 14:28:59,234 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-13 14:28:59,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 14:28:59,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:59,235 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:59,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:28:59,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:59,437 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:59,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:59,439 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-13 14:28:59,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:28:59,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [687311798] [2024-11-13 14:28:59,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:59,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:59,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:59,444 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:59,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:28:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:59,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 14:28:59,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:29:00,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:29:00,034 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:29:01,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:29:01,330 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:29:01,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687311798] [2024-11-13 14:29:01,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687311798] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:29:01,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:29:01,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-13 14:29:01,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106360940] [2024-11-13 14:29:01,331 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:29:01,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:29:01,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:29:01,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:29:01,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:29:01,333 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:29:01,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:29:01,463 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2024-11-13 14:29:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:29:01,464 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-13 14:29:01,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:29:01,464 INFO L225 Difference]: With dead ends: 14 [2024-11-13 14:29:01,464 INFO L226 Difference]: Without dead ends: 12 [2024-11-13 14:29:01,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:29:01,466 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:29:01,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:29:01,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-13 14:29:01,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-13 14:29:01,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:29:01,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-13 14:29:01,470 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-13 14:29:01,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:29:01,471 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-13 14:29:01,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:29:01,471 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-13 14:29:01,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 14:29:01,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:29:01,471 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-13 14:29:01,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:29:01,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:29:01,676 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:29:01,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:29:01,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-13 14:29:01,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:29:01,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227473206] [2024-11-13 14:29:01,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:29:01,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:29:01,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:29:01,680 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:29:01,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:29:01,854 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:29:01,854 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:29:01,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 14:29:01,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:29:02,202 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:29:02,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:29:06,753 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:29:06,754 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:29:06,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227473206] [2024-11-13 14:29:06,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227473206] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:29:06,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:29:06,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-13 14:29:06,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072648229] [2024-11-13 14:29:06,754 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:29:06,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:29:06,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:29:06,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:29:06,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:29:06,755 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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 14:29:06,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:29:06,964 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2024-11-13 14:29:06,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:29:06,965 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-13 14:29:06,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:29:06,966 INFO L225 Difference]: With dead ends: 12 [2024-11-13 14:29:06,966 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 14:29:06,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:29:06,968 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:29:06,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:29:06,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 14:29:06,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 14:29:06,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:29:06,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 14:29:06,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-11-13 14:29:06,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:29:06,973 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:29:06,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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 14:29:06,973 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 14:29:06,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 14:29:06,977 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 14:29:06,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:29:07,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:29:07,182 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-13 14:29:07,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 14:29:07,252 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:29:07,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:29:07 BoogieIcfgContainer [2024-11-13 14:29:07,268 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:29:07,270 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:29:07,271 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:29:07,271 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:29:07,272 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:58" (3/4) ... [2024-11-13 14:29:07,274 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 14:29:07,284 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-13 14:29:07,285 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 14:29:07,286 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 14:29:07,286 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 14:29:07,323 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.witnessprinter has thrown an exception: java.lang.NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:61) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:1) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GeneratedWitnessEdge.getSourceCode(GeneratedWitnessEdge.java:156) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.lambda$2(GraphMLCorrectnessWitnessGenerator.java:91) at edu.uci.ics.jung.io.GraphMLWriter.writeEdgeData(GraphMLWriter.java:237) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.UltimateGraphMLWriter.save(UltimateGraphMLWriter.java:106) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.makeGraphMLString(GraphMLCorrectnessWitnessGenerator.java:111) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.generateProofWitness(WitnessPrinter.java:168) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.finish(WitnessPrinter.java:143) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:130) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-13 14:29:07,327 INFO L158 Benchmark]: Toolchain (without parser) took 9727.28ms. Allocated memory was 83.9MB in the beginning and 151.0MB in the end (delta: 67.1MB). Free memory was 60.5MB in the beginning and 118.1MB in the end (delta: -57.6MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-11-13 14:29:07,327 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 64.8MB in the beginning and 64.8MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:29:07,327 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.63ms. Allocated memory is still 83.9MB. Free memory was 60.2MB in the beginning and 47.3MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:29:07,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.86ms. Allocated memory is still 83.9MB. Free memory was 47.3MB in the beginning and 45.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:29:07,328 INFO L158 Benchmark]: Boogie Preprocessor took 40.28ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 43.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:29:07,328 INFO L158 Benchmark]: RCFGBuilder took 396.49ms. Allocated memory is still 83.9MB. Free memory was 43.9MB in the beginning and 29.3MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:29:07,328 INFO L158 Benchmark]: TraceAbstraction took 8793.20ms. Allocated memory was 83.9MB in the beginning and 151.0MB in the end (delta: 67.1MB). Free memory was 28.7MB in the beginning and 119.6MB in the end (delta: -90.9MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. [2024-11-13 14:29:07,329 INFO L158 Benchmark]: Witness Printer took 55.83ms. Allocated memory is still 151.0MB. Free memory was 119.6MB in the beginning and 118.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:29:07,331 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 64.8MB in the beginning and 64.8MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.63ms. Allocated memory is still 83.9MB. Free memory was 60.2MB in the beginning and 47.3MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.86ms. Allocated memory is still 83.9MB. Free memory was 47.3MB in the beginning and 45.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.28ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 43.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 396.49ms. Allocated memory is still 83.9MB. Free memory was 43.9MB in the beginning and 29.3MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8793.20ms. Allocated memory was 83.9MB in the beginning and 151.0MB in the end (delta: 67.1MB). Free memory was 28.7MB in the beginning and 119.6MB in the end (delta: -90.9MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. * Witness Printer took 55.83ms. Allocated memory is still 151.0MB. Free memory was 119.6MB in the beginning and 118.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 10 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 11 QuantifiedInterpolants, 4731 SizeOfPredicates, 18 NumberOfNonLiveVariables, 246 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 2/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (((((((((1 == mask_SORT_3) && (0 == ((1 + mask_SORT_1) % 4294967296))) && (0 == var_7)) && (1 == state_14)) && (1 == state_8)) && (state_17 == state_12)) && (1 == var_24)) || ((((((1 == mask_SORT_3) && (0 == ((1 + mask_SORT_1) % 4294967296))) && (0 == var_7)) && (0 == state_8)) && (0 == state_14)) && (1 == var_24))) || ((((((1 == mask_SORT_3) && (0 == ((1 + mask_SORT_1) % 4294967296))) && (0 == var_7)) && (1 == state_8)) && (0 == state_14)) && (1 == var_24))) * Results from de.uni_freiburg.informatik.ultimate.witnessprinter: - ExceptionOrErrorResult: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null de.uni_freiburg.informatik.ultimate.witnessprinter: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-13 14:29:07,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df535d1d-d603-4973-8aaa-23c363fca3c1/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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null