./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.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_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/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_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/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_1c074353-73a6-4fa6-9211-fd55958127dc/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 77ee3c12bce0e0c115e8aa14d1707fe352f16b7764cd43525551553c3df84286 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:35:00,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:35:00,312 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-13 15:35:00,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:35:00,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:35:00,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:35:00,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:35:00,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:35:00,371 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:35:00,371 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:35:00,371 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:35:00,371 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:35:00,372 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:35:00,372 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:35:00,372 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:35:00,372 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:35:00,372 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:35:00,373 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:35:00,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:35:00,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:35:00,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:35:00,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:35:00,373 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:35:00,373 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:35:00,373 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:35:00,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:35:00,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:35:00,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:35:00,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:35:00,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:35:00,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:35:00,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:35:00,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:35:00,377 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:35:00,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:35:00,377 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:35:00,377 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:35:00,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:35:00,378 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:35:00,378 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_1c074353-73a6-4fa6-9211-fd55958127dc/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 -> 77ee3c12bce0e0c115e8aa14d1707fe352f16b7764cd43525551553c3df84286 [2024-11-13 15:35:00,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:35:00,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:35:00,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:35:00,760 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:35:00,761 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:35:00,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c Unable to find full path for "g++" [2024-11-13 15:35:02,651 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:35:03,167 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:35:03,167 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c [2024-11-13 15:35:03,191 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/data/839b476ad/6409da8a1ac14178934ff56acfc92a12/FLAG1aa1288a4 [2024-11-13 15:35:03,217 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/data/839b476ad/6409da8a1ac14178934ff56acfc92a12 [2024-11-13 15:35:03,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:35:03,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:35:03,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:35:03,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:35:03,232 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:35:03,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:35:03" (1/1) ... [2024-11-13 15:35:03,234 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8b7a1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:03, skipping insertion in model container [2024-11-13 15:35:03,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:35:03" (1/1) ... [2024-11-13 15:35:03,321 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:35:03,612 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_1c074353-73a6-4fa6-9211-fd55958127dc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c[1174,1187] [2024-11-13 15:35:04,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:35:04,106 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:35:04,115 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_1c074353-73a6-4fa6-9211-fd55958127dc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c[1174,1187] [2024-11-13 15:35:04,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:35:04,394 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:35:04,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:04 WrapperNode [2024-11-13 15:35:04,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:35:04,396 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:35:04,396 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:35:04,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:35:04,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:04" (1/1) ... [2024-11-13 15:35:04,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:04" (1/1) ... [2024-11-13 15:35:05,222 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4955 [2024-11-13 15:35:05,224 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:35:05,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:35:05,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:35:05,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:35:05,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:04" (1/1) ... [2024-11-13 15:35:05,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:04" (1/1) ... [2024-11-13 15:35:05,328 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:04" (1/1) ... [2024-11-13 15:35:05,479 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 15:35:05,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:04" (1/1) ... [2024-11-13 15:35:05,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:04" (1/1) ... [2024-11-13 15:35:05,760 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:04" (1/1) ... [2024-11-13 15:35:05,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:04" (1/1) ... [2024-11-13 15:35:05,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:04" (1/1) ... [2024-11-13 15:35:05,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:04" (1/1) ... [2024-11-13 15:35:05,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:35:05,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:35:05,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:35:05,995 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:35:05,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:04" (1/1) ... [2024-11-13 15:35:06,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:35:06,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:35:06,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:35:06,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:35:06,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:35:06,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:35:06,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:35:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:35:06,562 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:35:06,565 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:35:14,503 INFO L? ?]: Removed 2786 outVars from TransFormulas that were not future-live. [2024-11-13 15:35:14,503 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:35:14,550 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:35:14,550 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:35:14,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:35:14 BoogieIcfgContainer [2024-11-13 15:35:14,551 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:35:14,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:35:14,554 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:35:14,560 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:35:14,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:35:03" (1/3) ... [2024-11-13 15:35:14,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5e3826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:35:14, skipping insertion in model container [2024-11-13 15:35:14,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:04" (2/3) ... [2024-11-13 15:35:14,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5e3826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:35:14, skipping insertion in model container [2024-11-13 15:35:14,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:35:14" (3/3) ... [2024-11-13 15:35:14,563 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.fischer.2.prop1-func-interl.c [2024-11-13 15:35:14,582 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:35:14,584 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.fischer.2.prop1-func-interl.c that has 1 procedures, 1738 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:35:14,693 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:35:14,711 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;@d3bad1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:35:14,712 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:35:14,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 1738 states, 1736 states have (on average 1.5017281105990783) internal successors, (2607), 1737 states have internal predecessors, (2607), 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 15:35:14,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-13 15:35:14,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:35:14,745 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:35:14,746 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:35:14,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:35:14,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2114019558, now seen corresponding path program 1 times [2024-11-13 15:35:14,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:35:14,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359831672] [2024-11-13 15:35:14,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:35:14,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:35:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:35:16,459 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 15:35:16,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:35:16,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359831672] [2024-11-13 15:35:16,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359831672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:35:16,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:35:16,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:35:16,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059292832] [2024-11-13 15:35:16,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:35:16,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:35:16,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:35:16,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:35:16,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:35:16,513 INFO L87 Difference]: Start difference. First operand has 1738 states, 1736 states have (on average 1.5017281105990783) internal successors, (2607), 1737 states have internal predecessors, (2607), 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 23.75) internal successors, (95), 4 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 15:35:16,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:35:16,777 INFO L93 Difference]: Finished difference Result 3381 states and 5075 transitions. [2024-11-13 15:35:16,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:35:16,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 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) Word has length 95 [2024-11-13 15:35:16,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:35:16,804 INFO L225 Difference]: With dead ends: 3381 [2024-11-13 15:35:16,805 INFO L226 Difference]: Without dead ends: 1737 [2024-11-13 15:35:16,812 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 15:35:16,816 INFO L432 NwaCegarLoop]: 2601 mSDtfsCounter, 0 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7797 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:35:16,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7797 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:35:16,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1737 states. [2024-11-13 15:35:16,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1737. [2024-11-13 15:35:16,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1736 states have (on average 1.5005760368663594) internal successors, (2605), 1736 states have internal predecessors, (2605), 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 15:35:16,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2605 transitions. [2024-11-13 15:35:16,958 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2605 transitions. Word has length 95 [2024-11-13 15:35:16,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:35:16,959 INFO L471 AbstractCegarLoop]: Abstraction has 1737 states and 2605 transitions. [2024-11-13 15:35:16,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 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 15:35:16,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2605 transitions. [2024-11-13 15:35:16,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-13 15:35:16,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:35:16,965 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:35:16,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:35:16,966 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:35:16,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:35:16,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1111792596, now seen corresponding path program 1 times [2024-11-13 15:35:16,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:35:16,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248308697] [2024-11-13 15:35:16,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:35:16,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:35:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:35:17,473 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 15:35:17,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:35:17,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248308697] [2024-11-13 15:35:17,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248308697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:35:17,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:35:17,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:35:17,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844327711] [2024-11-13 15:35:17,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:35:17,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:35:17,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:35:17,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:35:17,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:35:17,478 INFO L87 Difference]: Start difference. First operand 1737 states and 2605 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 15:35:17,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:35:17,584 INFO L93 Difference]: Finished difference Result 3382 states and 5073 transitions. [2024-11-13 15:35:17,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:35:17,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 96 [2024-11-13 15:35:17,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:35:17,595 INFO L225 Difference]: With dead ends: 3382 [2024-11-13 15:35:17,595 INFO L226 Difference]: Without dead ends: 1739 [2024-11-13 15:35:17,597 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 15:35:17,598 INFO L432 NwaCegarLoop]: 2601 mSDtfsCounter, 0 mSDsluCounter, 5192 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7793 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 15:35:17,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7793 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:35:17,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2024-11-13 15:35:17,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1739. [2024-11-13 15:35:17,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1738 states have (on average 1.5) internal successors, (2607), 1738 states have internal predecessors, (2607), 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 15:35:17,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2607 transitions. [2024-11-13 15:35:17,662 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2607 transitions. Word has length 96 [2024-11-13 15:35:17,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:35:17,663 INFO L471 AbstractCegarLoop]: Abstraction has 1739 states and 2607 transitions. [2024-11-13 15:35:17,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 15:35:17,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2607 transitions. [2024-11-13 15:35:17,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-13 15:35:17,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:35:17,670 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:35:17,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:35:17,670 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:35:17,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:35:17,671 INFO L85 PathProgramCache]: Analyzing trace with hash -992133249, now seen corresponding path program 1 times [2024-11-13 15:35:17,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:35:17,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463434289] [2024-11-13 15:35:17,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:35:17,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:35:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:35:18,076 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 15:35:18,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:35:18,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463434289] [2024-11-13 15:35:18,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463434289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:35:18,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:35:18,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:35:18,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860208437] [2024-11-13 15:35:18,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:35:18,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:35:18,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:35:18,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:35:18,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:35:18,080 INFO L87 Difference]: Start difference. First operand 1739 states and 2607 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 15:35:18,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:35:18,193 INFO L93 Difference]: Finished difference Result 3386 states and 5077 transitions. [2024-11-13 15:35:18,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:35:18,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 97 [2024-11-13 15:35:18,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:35:18,203 INFO L225 Difference]: With dead ends: 3386 [2024-11-13 15:35:18,203 INFO L226 Difference]: Without dead ends: 1741 [2024-11-13 15:35:18,206 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 15:35:18,207 INFO L432 NwaCegarLoop]: 2601 mSDtfsCounter, 0 mSDsluCounter, 5186 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7787 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:35:18,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7787 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:35:18,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2024-11-13 15:35:18,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1741. [2024-11-13 15:35:18,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1740 states have (on average 1.4994252873563219) internal successors, (2609), 1740 states have internal predecessors, (2609), 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 15:35:18,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 2609 transitions. [2024-11-13 15:35:18,261 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 2609 transitions. Word has length 97 [2024-11-13 15:35:18,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:35:18,263 INFO L471 AbstractCegarLoop]: Abstraction has 1741 states and 2609 transitions. [2024-11-13 15:35:18,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 15:35:18,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 2609 transitions. [2024-11-13 15:35:18,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 15:35:18,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:35:18,264 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:35:18,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:35:18,265 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:35:18,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:35:18,265 INFO L85 PathProgramCache]: Analyzing trace with hash 217527739, now seen corresponding path program 1 times [2024-11-13 15:35:18,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:35:18,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207876715] [2024-11-13 15:35:18,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:35:18,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:35:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:35:18,596 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 15:35:18,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:35:18,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207876715] [2024-11-13 15:35:18,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207876715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:35:18,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:35:18,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:35:18,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150048398] [2024-11-13 15:35:18,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:35:18,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:35:18,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:35:18,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:35:18,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:35:18,601 INFO L87 Difference]: Start difference. First operand 1741 states and 2609 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 15:35:18,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:35:18,702 INFO L93 Difference]: Finished difference Result 3396 states and 5089 transitions. [2024-11-13 15:35:18,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:35:18,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 98 [2024-11-13 15:35:18,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:35:18,709 INFO L225 Difference]: With dead ends: 3396 [2024-11-13 15:35:18,709 INFO L226 Difference]: Without dead ends: 1749 [2024-11-13 15:35:18,712 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 15:35:18,712 INFO L432 NwaCegarLoop]: 2601 mSDtfsCounter, 3 mSDsluCounter, 5186 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7787 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:35:18,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7787 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:35:18,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2024-11-13 15:35:18,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1745. [2024-11-13 15:35:18,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1744 states have (on average 1.499426605504587) internal successors, (2615), 1744 states have internal predecessors, (2615), 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 15:35:18,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2615 transitions. [2024-11-13 15:35:18,759 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2615 transitions. Word has length 98 [2024-11-13 15:35:18,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:35:18,760 INFO L471 AbstractCegarLoop]: Abstraction has 1745 states and 2615 transitions. [2024-11-13 15:35:18,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 15:35:18,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2615 transitions. [2024-11-13 15:35:18,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 15:35:18,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:35:18,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:35:18,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:35:18,762 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:35:18,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:35:18,763 INFO L85 PathProgramCache]: Analyzing trace with hash -732380904, now seen corresponding path program 1 times [2024-11-13 15:35:18,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:35:18,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039884744] [2024-11-13 15:35:18,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:35:18,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:35:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:35:19,295 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 15:35:19,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:35:19,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039884744] [2024-11-13 15:35:19,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039884744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:35:19,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:35:19,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:35:19,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639118404] [2024-11-13 15:35:19,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:35:19,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:35:19,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:35:19,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:35:19,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:35:19,300 INFO L87 Difference]: Start difference. First operand 1745 states and 2615 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 15:35:22,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:35:22,504 INFO L93 Difference]: Finished difference Result 5031 states and 7541 transitions. [2024-11-13 15:35:22,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:35:22,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 99 [2024-11-13 15:35:22,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:35:22,518 INFO L225 Difference]: With dead ends: 5031 [2024-11-13 15:35:22,518 INFO L226 Difference]: Without dead ends: 3380 [2024-11-13 15:35:22,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:35:22,522 INFO L432 NwaCegarLoop]: 1967 mSDtfsCounter, 2499 mSDsluCounter, 5807 mSDsCounter, 0 mSdLazyCounter, 2499 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2499 SdHoareTripleChecker+Valid, 7774 SdHoareTripleChecker+Invalid, 2500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:35:22,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2499 Valid, 7774 Invalid, 2500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2499 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 15:35:22,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3380 states. [2024-11-13 15:35:22,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3380 to 1820. [2024-11-13 15:35:22,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1820 states, 1819 states have (on average 1.4986256184716877) internal successors, (2726), 1819 states have internal predecessors, (2726), 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 15:35:22,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 2726 transitions. [2024-11-13 15:35:22,583 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 2726 transitions. Word has length 99 [2024-11-13 15:35:22,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:35:22,584 INFO L471 AbstractCegarLoop]: Abstraction has 1820 states and 2726 transitions. [2024-11-13 15:35:22,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 15:35:22,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 2726 transitions. [2024-11-13 15:35:22,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-13 15:35:22,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:35:22,585 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:35:22,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:35:22,586 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:35:22,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:35:22,586 INFO L85 PathProgramCache]: Analyzing trace with hash -994986786, now seen corresponding path program 1 times [2024-11-13 15:35:22,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:35:22,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807912588] [2024-11-13 15:35:22,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:35:22,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:35:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:35:23,668 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 15:35:23,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:35:23,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807912588] [2024-11-13 15:35:23,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807912588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:35:23,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:35:23,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:35:23,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923000546] [2024-11-13 15:35:23,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:35:23,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:35:23,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:35:23,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:35:23,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:35:23,672 INFO L87 Difference]: Start difference. First operand 1820 states and 2726 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 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 15:35:26,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:35:26,182 INFO L93 Difference]: Finished difference Result 3486 states and 5222 transitions. [2024-11-13 15:35:26,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:35:26,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 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) Word has length 100 [2024-11-13 15:35:26,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:35:26,189 INFO L225 Difference]: With dead ends: 3486 [2024-11-13 15:35:26,189 INFO L226 Difference]: Without dead ends: 1835 [2024-11-13 15:35:26,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:35:26,192 INFO L432 NwaCegarLoop]: 1951 mSDtfsCounter, 2532 mSDsluCounter, 5839 mSDsCounter, 0 mSdLazyCounter, 2621 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2532 SdHoareTripleChecker+Valid, 7790 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:35:26,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2532 Valid, 7790 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2621 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 15:35:26,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2024-11-13 15:35:26,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1833. [2024-11-13 15:35:26,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1833 states, 1832 states have (on average 1.4961790393013101) internal successors, (2741), 1832 states have internal predecessors, (2741), 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 15:35:26,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2741 transitions. [2024-11-13 15:35:26,241 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2741 transitions. Word has length 100 [2024-11-13 15:35:26,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:35:26,242 INFO L471 AbstractCegarLoop]: Abstraction has 1833 states and 2741 transitions. [2024-11-13 15:35:26,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 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 15:35:26,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2741 transitions. [2024-11-13 15:35:26,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 15:35:26,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:35:26,243 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:35:26,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:35:26,244 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:35:26,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:35:26,244 INFO L85 PathProgramCache]: Analyzing trace with hash -460472423, now seen corresponding path program 1 times [2024-11-13 15:35:26,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:35:26,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140248892] [2024-11-13 15:35:26,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:35:26,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:35:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:35:26,359 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:35:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:35:26,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:35:26,516 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:35:26,517 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 15:35:26,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:35:26,523 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:35:26,648 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:35:26,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:35:26 BoogieIcfgContainer [2024-11-13 15:35:26,654 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:35:26,655 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:35:26,655 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:35:26,655 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:35:26,656 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:35:14" (3/4) ... [2024-11-13 15:35:26,659 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 15:35:26,661 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:35:26,663 INFO L158 Benchmark]: Toolchain (without parser) took 23439.08ms. Allocated memory was 117.4MB in the beginning and 478.2MB in the end (delta: 360.7MB). Free memory was 88.6MB in the beginning and 301.6MB in the end (delta: -213.0MB). Peak memory consumption was 150.4MB. Max. memory is 16.1GB. [2024-11-13 15:35:26,666 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:35:26,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1169.01ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 70.0MB in the end (delta: 18.6MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. [2024-11-13 15:35:26,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 827.91ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 69.8MB in the beginning and 132.6MB in the end (delta: -62.8MB). Peak memory consumption was 132.1MB. Max. memory is 16.1GB. [2024-11-13 15:35:26,667 INFO L158 Benchmark]: Boogie Preprocessor took 768.34ms. Allocated memory is still 251.7MB. Free memory was 132.6MB in the beginning and 111.0MB in the end (delta: 21.6MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2024-11-13 15:35:26,667 INFO L158 Benchmark]: RCFGBuilder took 8556.41ms. Allocated memory was 251.7MB in the beginning and 453.0MB in the end (delta: 201.3MB). Free memory was 111.0MB in the beginning and 96.7MB in the end (delta: 14.3MB). Peak memory consumption was 272.2MB. Max. memory is 16.1GB. [2024-11-13 15:35:26,667 INFO L158 Benchmark]: TraceAbstraction took 12100.55ms. Allocated memory was 453.0MB in the beginning and 478.2MB in the end (delta: 25.2MB). Free memory was 96.7MB in the beginning and 301.6MB in the end (delta: -204.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:35:26,667 INFO L158 Benchmark]: Witness Printer took 6.00ms. Allocated memory is still 478.2MB. Free memory was 301.6MB in the beginning and 301.6MB in the end (delta: 17.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:35:26,669 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1169.01ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 70.0MB in the end (delta: 18.6MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 827.91ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 69.8MB in the beginning and 132.6MB in the end (delta: -62.8MB). Peak memory consumption was 132.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 768.34ms. Allocated memory is still 251.7MB. Free memory was 132.6MB in the beginning and 111.0MB in the end (delta: 21.6MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. * RCFGBuilder took 8556.41ms. Allocated memory was 251.7MB in the beginning and 453.0MB in the end (delta: 201.3MB). Free memory was 111.0MB in the beginning and 96.7MB in the end (delta: 14.3MB). Peak memory consumption was 272.2MB. Max. memory is 16.1GB. * TraceAbstraction took 12100.55ms. Allocated memory was 453.0MB in the beginning and 478.2MB in the end (delta: 25.2MB). Free memory was 96.7MB in the beginning and 301.6MB in the end (delta: -204.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.00ms. Allocated memory is still 478.2MB. Free memory was 301.6MB in the beginning and 301.6MB in the end (delta: 17.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 225, overapproximation of bitwiseAnd at line 223. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_16 = 0; [L40] const SORT_4 var_53 = 1; [L41] const SORT_4 var_54 = 0; [L42] const SORT_2 var_66 = 0; [L43] const SORT_2 var_68 = 4; [L44] const SORT_2 var_71 = 3; [L45] const SORT_2 var_74 = 2; [L46] const SORT_2 var_77 = 1; [L47] const SORT_2 var_87 = 255; [L48] const SORT_3 var_91 = 0; [L49] const SORT_4 var_95 = 255; [L51] SORT_1 input_65; [L52] SORT_1 input_67; [L53] SORT_1 input_69; [L54] SORT_1 input_70; [L55] SORT_1 input_72; [L56] SORT_1 input_73; [L57] SORT_1 input_75; [L58] SORT_1 input_76; [L59] SORT_1 input_88; [L60] SORT_1 input_89; [L61] SORT_1 input_90; [L62] SORT_1 input_107; [L63] SORT_1 input_108; [L64] SORT_1 input_123; [L65] SORT_1 input_124; [L66] SORT_1 input_139; [L67] SORT_1 input_140; [L68] SORT_1 input_157; [L69] SORT_1 input_165; [L70] SORT_1 input_173; [L71] SORT_1 input_181; [L72] SORT_1 input_189; [L73] SORT_1 input_197; [L74] SORT_1 input_205; [L75] SORT_1 input_213; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L77] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L78] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L79] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L80] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L81] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L82] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L83] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L84] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L85] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L86] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L87] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L88] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L89] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L90] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L91] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L92] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L93] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L94] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L95] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L96] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L97] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L98] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L98] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L99] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] SORT_2 init_7_arg_1 = var_5; [L102] state_6 = init_7_arg_1 [L103] SORT_2 init_9_arg_1 = var_5; [L104] state_8 = init_9_arg_1 [L105] SORT_2 init_11_arg_1 = var_5; [L106] state_10 = init_11_arg_1 [L107] SORT_2 init_13_arg_1 = var_5; [L108] state_12 = init_13_arg_1 [L109] SORT_2 init_15_arg_1 = var_5; [L110] state_14 = init_15_arg_1 [L111] SORT_1 init_18_arg_1 = var_16; [L112] state_17 = init_18_arg_1 [L113] SORT_1 init_20_arg_1 = var_16; [L114] state_19 = init_20_arg_1 [L115] SORT_1 init_22_arg_1 = var_16; [L116] state_21 = init_22_arg_1 [L117] SORT_1 init_24_arg_1 = var_16; [L118] state_23 = init_24_arg_1 [L119] SORT_1 init_26_arg_1 = var_16; [L120] state_25 = init_26_arg_1 [L121] SORT_1 init_28_arg_1 = var_16; [L122] state_27 = init_28_arg_1 [L123] SORT_1 init_30_arg_1 = var_16; [L124] state_29 = init_30_arg_1 [L125] SORT_1 init_32_arg_1 = var_16; [L126] state_31 = init_32_arg_1 [L127] SORT_1 init_34_arg_1 = var_16; [L128] state_33 = init_34_arg_1 [L129] SORT_1 init_36_arg_1 = var_16; [L130] state_35 = init_36_arg_1 [L131] SORT_1 init_38_arg_1 = var_16; [L132] state_37 = init_38_arg_1 [L133] SORT_1 init_40_arg_1 = var_16; [L134] state_39 = init_40_arg_1 [L135] SORT_1 init_42_arg_1 = var_16; [L136] state_41 = init_42_arg_1 [L137] SORT_1 init_44_arg_1 = var_16; [L138] state_43 = init_44_arg_1 [L139] SORT_1 init_46_arg_1 = var_16; [L140] state_45 = init_46_arg_1 [L141] SORT_1 init_48_arg_1 = var_16; [L142] state_47 = init_48_arg_1 [L143] SORT_1 init_50_arg_1 = var_16; [L144] state_49 = init_50_arg_1 [L145] SORT_1 init_52_arg_1 = var_16; [L146] state_51 = init_52_arg_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L149] input_65 = __VERIFIER_nondet_uchar() [L150] EXPR input_65 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L150] input_65 = input_65 & mask_SORT_1 [L151] input_67 = __VERIFIER_nondet_uchar() [L152] EXPR input_67 & mask_SORT_1 VAL [input_65=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L152] input_67 = input_67 & mask_SORT_1 [L153] input_69 = __VERIFIER_nondet_uchar() [L154] EXPR input_69 & mask_SORT_1 VAL [input_65=0, input_67=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L154] input_69 = input_69 & mask_SORT_1 [L155] input_70 = __VERIFIER_nondet_uchar() [L156] EXPR input_70 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L156] input_70 = input_70 & mask_SORT_1 [L157] input_72 = __VERIFIER_nondet_uchar() [L158] EXPR input_72 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L158] input_72 = input_72 & mask_SORT_1 [L159] input_73 = __VERIFIER_nondet_uchar() [L160] EXPR input_73 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L160] input_73 = input_73 & mask_SORT_1 [L161] input_75 = __VERIFIER_nondet_uchar() [L162] EXPR input_75 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L162] input_75 = input_75 & mask_SORT_1 [L163] input_76 = __VERIFIER_nondet_uchar() [L164] EXPR input_76 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L164] input_76 = input_76 & mask_SORT_1 [L165] input_88 = __VERIFIER_nondet_uchar() [L166] EXPR input_88 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L166] input_88 = input_88 & mask_SORT_1 [L167] input_89 = __VERIFIER_nondet_uchar() [L168] EXPR input_89 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L168] input_89 = input_89 & mask_SORT_1 [L169] input_90 = __VERIFIER_nondet_uchar() [L170] EXPR input_90 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L170] input_90 = input_90 & mask_SORT_1 [L171] input_107 = __VERIFIER_nondet_uchar() [L172] EXPR input_107 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L172] input_107 = input_107 & mask_SORT_1 [L173] input_108 = __VERIFIER_nondet_uchar() [L174] EXPR input_108 & mask_SORT_1 VAL [input_107=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L174] input_108 = input_108 & mask_SORT_1 [L175] input_123 = __VERIFIER_nondet_uchar() [L176] EXPR input_123 & mask_SORT_1 VAL [input_107=0, input_108=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L176] input_123 = input_123 & mask_SORT_1 [L177] input_124 = __VERIFIER_nondet_uchar() [L178] EXPR input_124 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L178] input_124 = input_124 & mask_SORT_1 [L179] input_139 = __VERIFIER_nondet_uchar() [L180] EXPR input_139 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L180] input_139 = input_139 & mask_SORT_1 [L181] input_140 = __VERIFIER_nondet_uchar() [L182] EXPR input_140 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L182] input_140 = input_140 & mask_SORT_1 [L183] input_157 = __VERIFIER_nondet_uchar() [L184] input_165 = __VERIFIER_nondet_uchar() [L185] input_173 = __VERIFIER_nondet_uchar() [L186] input_181 = __VERIFIER_nondet_uchar() [L187] input_189 = __VERIFIER_nondet_uchar() [L188] input_197 = __VERIFIER_nondet_uchar() [L189] input_205 = __VERIFIER_nondet_uchar() [L190] input_213 = __VERIFIER_nondet_uchar() [L193] SORT_1 var_55_arg_0 = state_25; [L194] SORT_4 var_55_arg_1 = var_53; [L195] SORT_4 var_55_arg_2 = var_54; [L196] SORT_4 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L197] SORT_1 var_56_arg_0 = state_33; [L198] SORT_4 var_56_arg_1 = var_53; [L199] SORT_4 var_56_arg_2 = var_54; [L200] SORT_4 var_56 = var_56_arg_0 ? var_56_arg_1 : var_56_arg_2; [L201] SORT_4 var_57_arg_0 = var_55; [L202] SORT_4 var_57_arg_1 = var_56; [L203] SORT_4 var_57 = var_57_arg_0 + var_57_arg_1; [L204] SORT_1 var_58_arg_0 = state_41; [L205] SORT_4 var_58_arg_1 = var_53; [L206] SORT_4 var_58_arg_2 = var_54; [L207] SORT_4 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L208] SORT_4 var_59_arg_0 = var_57; [L209] SORT_4 var_59_arg_1 = var_58; [L210] SORT_4 var_59 = var_59_arg_0 + var_59_arg_1; [L211] SORT_1 var_60_arg_0 = state_49; [L212] SORT_4 var_60_arg_1 = var_53; [L213] SORT_4 var_60_arg_2 = var_54; [L214] SORT_4 var_60 = var_60_arg_0 ? var_60_arg_1 : var_60_arg_2; [L215] SORT_4 var_61_arg_0 = var_59; [L216] SORT_4 var_61_arg_1 = var_60; [L217] SORT_4 var_61 = var_61_arg_0 + var_61_arg_1; VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_61=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L218] EXPR var_61 & mask_SORT_4 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L218] var_61 = var_61 & mask_SORT_4 [L219] SORT_4 var_62_arg_0 = var_61; [L220] SORT_4 var_62_arg_1 = var_53; [L221] SORT_1 var_62 = var_62_arg_0 <= var_62_arg_1; [L222] SORT_1 var_63_arg_0 = ~state_51; VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_62=1, var_63_arg_0=-1, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L223] EXPR var_63_arg_0 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_62=1, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L223] var_63_arg_0 = var_63_arg_0 & mask_SORT_1 [L224] SORT_1 var_63_arg_1 = ~var_62; VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_63_arg_0=1, var_63_arg_1=-2, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L225] EXPR var_63_arg_1 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_63_arg_0=1, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L225] var_63_arg_1 = var_63_arg_1 & mask_SORT_1 [L226] EXPR var_63_arg_0 & var_63_arg_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L226] SORT_1 var_63 = var_63_arg_0 & var_63_arg_1; [L227] EXPR var_63 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L227] var_63 = var_63 & mask_SORT_1 [L228] SORT_1 bad_64_arg_0 = var_63; [L229] CALL __VERIFIER_assert(!(bad_64_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1738 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5034 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5034 mSDsluCounter, 46728 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32406 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5188 IncrementalHoareTripleChecker+Invalid, 5190 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 14322 mSDtfsCounter, 5188 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1833occurred in iteration=6, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 1566 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 686 NumberOfCodeBlocks, 686 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 579 ConstructedInterpolants, 0 QuantifiedInterpolants, 1657 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 15:35:26,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/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_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/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_1c074353-73a6-4fa6-9211-fd55958127dc/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 77ee3c12bce0e0c115e8aa14d1707fe352f16b7764cd43525551553c3df84286 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:35:29,449 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:35:29,591 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-13 15:35:29,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:35:29,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:35:29,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:35:29,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:35:29,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:35:29,651 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:35:29,652 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:35:29,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:35:29,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:35:29,653 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:35:29,653 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:35:29,653 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:35:29,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:35:29,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:35:29,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:35:29,654 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:35:29,654 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:35:29,654 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:35:29,654 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:35:29,654 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 15:35:29,654 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:35:29,654 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 15:35:29,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:35:29,655 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:35:29,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:35:29,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:35:29,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:35:29,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:35:29,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:35:29,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:35:29,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:35:29,655 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:35:29,655 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 15:35:29,656 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 15:35:29,656 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:35:29,656 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:35:29,656 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:35:29,656 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:35:29,656 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_1c074353-73a6-4fa6-9211-fd55958127dc/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 -> 77ee3c12bce0e0c115e8aa14d1707fe352f16b7764cd43525551553c3df84286 [2024-11-13 15:35:30,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:35:30,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:35:30,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:35:30,037 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:35:30,038 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:35:30,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c Unable to find full path for "g++" [2024-11-13 15:35:32,020 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:35:32,428 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:35:32,428 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c [2024-11-13 15:35:32,448 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/data/2db5c423d/1143c8b26e154fa6912c79de40491e0f/FLAGac8b05d37 [2024-11-13 15:35:32,600 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/data/2db5c423d/1143c8b26e154fa6912c79de40491e0f [2024-11-13 15:35:32,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:35:32,606 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:35:32,608 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:35:32,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:35:32,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:35:32,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:35:32" (1/1) ... [2024-11-13 15:35:32,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c0a1dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:32, skipping insertion in model container [2024-11-13 15:35:32,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:35:32" (1/1) ... [2024-11-13 15:35:32,694 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:35:32,939 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_1c074353-73a6-4fa6-9211-fd55958127dc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c[1174,1187] [2024-11-13 15:35:33,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:35:33,317 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:35:33,328 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_1c074353-73a6-4fa6-9211-fd55958127dc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c[1174,1187] [2024-11-13 15:35:33,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:35:33,541 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:35:33,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:33 WrapperNode [2024-11-13 15:35:33,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:35:33,543 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:35:33,544 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:35:33,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:35:33,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:33" (1/1) ... [2024-11-13 15:35:33,594 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:33" (1/1) ... [2024-11-13 15:35:33,680 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1499 [2024-11-13 15:35:33,681 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:35:33,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:35:33,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:35:33,682 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:35:33,691 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:33" (1/1) ... [2024-11-13 15:35:33,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:33" (1/1) ... [2024-11-13 15:35:33,706 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:33" (1/1) ... [2024-11-13 15:35:33,773 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 15:35:33,773 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:33" (1/1) ... [2024-11-13 15:35:33,777 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:33" (1/1) ... [2024-11-13 15:35:33,830 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:33" (1/1) ... [2024-11-13 15:35:33,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:33" (1/1) ... [2024-11-13 15:35:33,855 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:33" (1/1) ... [2024-11-13 15:35:33,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:33" (1/1) ... [2024-11-13 15:35:33,887 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:35:33,888 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:35:33,888 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:35:33,888 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:35:33,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:33" (1/1) ... [2024-11-13 15:35:33,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:35:33,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:35:33,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:35:33,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:35:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:35:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 15:35:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:35:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:35:34,398 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:35:34,400 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:35:36,444 INFO L? ?]: Removed 92 outVars from TransFormulas that were not future-live. [2024-11-13 15:35:36,444 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:35:36,457 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:35:36,458 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:35:36,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:35:36 BoogieIcfgContainer [2024-11-13 15:35:36,459 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:35:36,462 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:35:36,463 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:35:36,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:35:36,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:35:32" (1/3) ... [2024-11-13 15:35:36,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a829f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:35:36, skipping insertion in model container [2024-11-13 15:35:36,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:35:33" (2/3) ... [2024-11-13 15:35:36,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a829f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:35:36, skipping insertion in model container [2024-11-13 15:35:36,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:35:36" (3/3) ... [2024-11-13 15:35:36,472 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.fischer.2.prop1-func-interl.c [2024-11-13 15:35:36,490 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:35:36,492 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.fischer.2.prop1-func-interl.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:35:36,555 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:35:36,570 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;@39f4edc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:35:36,570 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:35:36,575 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 15:35:36,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 15:35:36,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:35:36,583 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 15:35:36,584 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:35:36,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:35:36,592 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-13 15:35:36,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:35:36,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [181102348] [2024-11-13 15:35:36,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:35:36,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:35:36,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:35:36,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:35:36,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:35:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:35:37,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-13 15:35:37,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:35:37,783 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 15:35:37,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:35:37,784 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:35:37,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181102348] [2024-11-13 15:35:37,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181102348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:35:37,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:35:37,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:35:37,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688840572] [2024-11-13 15:35:37,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:35:37,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:35:37,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:35:37,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:35:37,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:35:37,818 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 15:35:37,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:35:37,998 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-13 15:35:37,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:35:38,001 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 15:35:38,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:35:38,008 INFO L225 Difference]: With dead ends: 18 [2024-11-13 15:35:38,008 INFO L226 Difference]: Without dead ends: 10 [2024-11-13 15:35:38,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:35:38,014 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:35:38,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:35:38,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-13 15:35:38,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-13 15:35:38,040 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 15:35:38,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-13 15:35:38,047 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-13 15:35:38,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:35:38,048 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-13 15:35:38,048 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 15:35:38,049 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-13 15:35:38,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 15:35:38,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:35:38,049 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-13 15:35:38,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:35:38,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:35:38,250 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:35:38,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:35:38,251 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-13 15:35:38,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:35:38,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763746749] [2024-11-13 15:35:38,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:35:38,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:35:38,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:35:38,255 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:35:38,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c074353-73a6-4fa6-9211-fd55958127dc/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:35:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:35:38,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-13 15:35:38,903 INFO L278 TraceCheckSpWp]: Computing forward predicates...