./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/Fibonacci03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/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_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/Fibonacci03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/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 32bit --witnessprinter.graph.data.programhash be0a584ba9648c80e7a0523ff51ba530f1926c55cecd3c62f2cee05fbbff42e3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:20:03,053 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:20:03,108 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:20:03,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:20:03,113 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:20:03,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:20:03,135 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:20:03,135 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:20:03,136 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:20:03,136 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:20:03,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:20:03,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:20:03,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:20:03,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:20:03,137 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:20:03,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:20:03,137 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:20:03,137 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:20:03,137 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:20:03,137 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:20:03,137 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:20:03,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:20:03,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:20:03,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:20:03,138 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:20:03,138 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:20:03,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:20:03,138 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:20:03,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:20:03,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:20:03,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:20:03,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:20:03,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:20:03,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:20:03,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:20:03,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:20:03,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:20:03,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:20:03,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:20:03,139 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:20:03,139 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:20:03,140 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:20:03,140 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_c927edca-93ee-4444-a75d-df87ddfa3d7a/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be0a584ba9648c80e7a0523ff51ba530f1926c55cecd3c62f2cee05fbbff42e3 [2024-11-13 14:20:03,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:20:03,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:20:03,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:20:03,439 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:20:03,440 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:20:03,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/recursive/Fibonacci03.c Unable to find full path for "g++" [2024-11-13 14:20:05,250 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:20:05,481 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:20:05,482 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/sv-benchmarks/c/recursive/Fibonacci03.c [2024-11-13 14:20:05,496 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/data/b8c76e026/26447b57d8bb49aba98a2a5b1ce49851/FLAG0cc6e21fb [2024-11-13 14:20:05,511 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/data/b8c76e026/26447b57d8bb49aba98a2a5b1ce49851 [2024-11-13 14:20:05,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:20:05,515 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:20:05,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:20:05,517 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:20:05,521 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:20:05,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:20:05" (1/1) ... [2024-11-13 14:20:05,522 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b94e1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05, skipping insertion in model container [2024-11-13 14:20:05,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:20:05" (1/1) ... [2024-11-13 14:20:05,536 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:20:05,721 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_c927edca-93ee-4444-a75d-df87ddfa3d7a/sv-benchmarks/c/recursive/Fibonacci03.c[788,801] [2024-11-13 14:20:05,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:20:05,736 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:20:05,751 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_c927edca-93ee-4444-a75d-df87ddfa3d7a/sv-benchmarks/c/recursive/Fibonacci03.c[788,801] [2024-11-13 14:20:05,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:20:05,766 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:20:05,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05 WrapperNode [2024-11-13 14:20:05,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:20:05,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:20:05,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:20:05,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:20:05,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05" (1/1) ... [2024-11-13 14:20:05,782 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05" (1/1) ... [2024-11-13 14:20:05,799 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2024-11-13 14:20:05,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:20:05,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:20:05,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:20:05,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:20:05,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05" (1/1) ... [2024-11-13 14:20:05,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05" (1/1) ... [2024-11-13 14:20:05,815 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05" (1/1) ... [2024-11-13 14:20:05,829 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 14:20:05,830 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05" (1/1) ... [2024-11-13 14:20:05,830 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05" (1/1) ... [2024-11-13 14:20:05,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05" (1/1) ... [2024-11-13 14:20:05,836 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05" (1/1) ... [2024-11-13 14:20:05,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05" (1/1) ... [2024-11-13 14:20:05,837 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05" (1/1) ... [2024-11-13 14:20:05,838 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:20:05,839 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:20:05,839 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:20:05,839 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:20:05,842 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05" (1/1) ... [2024-11-13 14:20:05,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:20:05,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:20:05,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:20:05,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:20:05,905 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2024-11-13 14:20:05,906 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2024-11-13 14:20:05,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:20:05,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:20:05,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:20:05,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:20:05,978 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:20:05,979 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:20:06,124 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-13 14:20:06,126 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:20:06,138 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:20:06,138 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 14:20:06,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:20:06 BoogieIcfgContainer [2024-11-13 14:20:06,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:20:06,141 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:20:06,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:20:06,146 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:20:06,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:20:05" (1/3) ... [2024-11-13 14:20:06,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25154e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:20:06, skipping insertion in model container [2024-11-13 14:20:06,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:20:05" (2/3) ... [2024-11-13 14:20:06,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25154e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:20:06, skipping insertion in model container [2024-11-13 14:20:06,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:20:06" (3/3) ... [2024-11-13 14:20:06,149 INFO L112 eAbstractionObserver]: Analyzing ICFG Fibonacci03.c [2024-11-13 14:20:06,166 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:20:06,169 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Fibonacci03.c that has 2 procedures, 20 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-13 14:20:06,236 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:20:06,253 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;@c830bfc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:20:06,253 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:20:06,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 14:20:06,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 14:20:06,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:20:06,267 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:20:06,267 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:20:06,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:20:06,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1939714822, now seen corresponding path program 1 times [2024-11-13 14:20:06,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:20:06,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392975007] [2024-11-13 14:20:06,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:06,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:20:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:06,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:06,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:20:06,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:20:06,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392975007] [2024-11-13 14:20:06,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392975007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:20:06,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:20:06,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:20:06,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755147957] [2024-11-13 14:20:06,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:20:06,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:20:06,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:20:06,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:20:06,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:20:06,594 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 14:20:06,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:20:06,744 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2024-11-13 14:20:06,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:20:06,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-13 14:20:06,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:20:06,755 INFO L225 Difference]: With dead ends: 31 [2024-11-13 14:20:06,755 INFO L226 Difference]: Without dead ends: 21 [2024-11-13 14:20:06,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:20:06,762 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:20:06,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 51 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:20:06,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-13 14:20:06,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2024-11-13 14:20:06,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 14:20:06,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-11-13 14:20:06,811 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 11 [2024-11-13 14:20:06,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:20:06,812 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-13 14:20:06,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 14:20:06,813 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-13 14:20:06,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 14:20:06,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:20:06,816 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:20:06,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:20:06,816 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:20:06,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:20:06,817 INFO L85 PathProgramCache]: Analyzing trace with hash 692912656, now seen corresponding path program 1 times [2024-11-13 14:20:06,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:20:06,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922280957] [2024-11-13 14:20:06,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:06,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:20:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:06,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:07,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:20:07,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:20:07,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922280957] [2024-11-13 14:20:07,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922280957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:20:07,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:20:07,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:20:07,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103934449] [2024-11-13 14:20:07,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:20:07,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:20:07,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:20:07,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:20:07,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:20:07,007 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 14:20:07,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:20:07,095 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2024-11-13 14:20:07,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:20:07,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-13 14:20:07,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:20:07,111 INFO L225 Difference]: With dead ends: 25 [2024-11-13 14:20:07,111 INFO L226 Difference]: Without dead ends: 21 [2024-11-13 14:20:07,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:20:07,112 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:20:07,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 39 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:20:07,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-13 14:20:07,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2024-11-13 14:20:07,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 14:20:07,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-11-13 14:20:07,125 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2024-11-13 14:20:07,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:20:07,126 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-13 14:20:07,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 14:20:07,126 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-13 14:20:07,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 14:20:07,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:20:07,128 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:20:07,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:20:07,129 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:20:07,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:20:07,130 INFO L85 PathProgramCache]: Analyzing trace with hash 453332055, now seen corresponding path program 1 times [2024-11-13 14:20:07,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:20:07,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360545762] [2024-11-13 14:20:07,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:07,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:20:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:07,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:07,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:07,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 14:20:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:20:07,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:20:07,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360545762] [2024-11-13 14:20:07,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360545762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:20:07,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823696322] [2024-11-13 14:20:07,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:07,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:07,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:20:07,381 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:20:07,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:20:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:07,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:20:07,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:20:07,593 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:20:07,593 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:20:07,927 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 14:20:07,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823696322] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:20:07,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:20:07,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 13 [2024-11-13 14:20:07,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574642536] [2024-11-13 14:20:07,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:20:07,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:20:07,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:20:07,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:20:07,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:20:07,932 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 7 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-13 14:20:08,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:20:08,194 INFO L93 Difference]: Finished difference Result 47 states and 70 transitions. [2024-11-13 14:20:08,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:20:08,194 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 7 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) Word has length 24 [2024-11-13 14:20:08,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:20:08,195 INFO L225 Difference]: With dead ends: 47 [2024-11-13 14:20:08,195 INFO L226 Difference]: Without dead ends: 30 [2024-11-13 14:20:08,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:20:08,197 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 23 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:20:08,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 90 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:20:08,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-13 14:20:08,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-13 14:20:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-13 14:20:08,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 42 transitions. [2024-11-13 14:20:08,211 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 42 transitions. Word has length 24 [2024-11-13 14:20:08,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:20:08,212 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 42 transitions. [2024-11-13 14:20:08,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 7 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-13 14:20:08,212 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2024-11-13 14:20:08,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 14:20:08,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:20:08,216 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:20:08,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:20:08,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:08,417 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:20:08,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:20:08,418 INFO L85 PathProgramCache]: Analyzing trace with hash -872442578, now seen corresponding path program 1 times [2024-11-13 14:20:08,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:20:08,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425809051] [2024-11-13 14:20:08,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:08,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:20:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:08,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:08,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:08,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:08,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:08,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:09,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:09,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:09,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:09,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:09,035 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 44 proven. 63 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-13 14:20:09,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:20:09,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425809051] [2024-11-13 14:20:09,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425809051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:20:09,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047504892] [2024-11-13 14:20:09,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:09,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:09,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:20:09,037 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:20:09,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:20:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:09,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 14:20:09,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:20:09,231 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 16 proven. 75 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-13 14:20:09,233 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:20:09,786 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-13 14:20:09,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047504892] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:20:09,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:20:09,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 9] total 18 [2024-11-13 14:20:09,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568761893] [2024-11-13 14:20:09,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:20:09,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 14:20:09,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:20:09,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 14:20:09,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:20:09,792 INFO L87 Difference]: Start difference. First operand 30 states and 42 transitions. Second operand has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (18), 11 states have call predecessors, (18), 11 states have call successors, (18) [2024-11-13 14:20:10,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:20:10,098 INFO L93 Difference]: Finished difference Result 74 states and 124 transitions. [2024-11-13 14:20:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 14:20:10,099 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (18), 11 states have call predecessors, (18), 11 states have call successors, (18) Word has length 66 [2024-11-13 14:20:10,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:20:10,101 INFO L225 Difference]: With dead ends: 74 [2024-11-13 14:20:10,102 INFO L226 Difference]: Without dead ends: 46 [2024-11-13 14:20:10,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 141 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:20:10,104 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 42 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:20:10,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 97 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:20:10,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-13 14:20:10,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2024-11-13 14:20:10,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 30 states have internal predecessors, (34), 7 states have call successors, (7), 3 states have call predecessors, (7), 6 states have return successors, (25), 9 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-13 14:20:10,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 66 transitions. [2024-11-13 14:20:10,124 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 66 transitions. Word has length 66 [2024-11-13 14:20:10,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:20:10,124 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 66 transitions. [2024-11-13 14:20:10,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (18), 11 states have call predecessors, (18), 11 states have call successors, (18) [2024-11-13 14:20:10,124 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 66 transitions. [2024-11-13 14:20:10,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 14:20:10,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:20:10,130 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 13, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:20:10,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 14:20:10,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:10,330 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:20:10,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:20:10,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1025995309, now seen corresponding path program 2 times [2024-11-13 14:20:10,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:20:10,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081826884] [2024-11-13 14:20:10,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:10,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:20:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:10,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:10,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:10,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:10,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:20:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-13 14:20:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:20:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:11,236 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 223 proven. 189 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2024-11-13 14:20:11,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:20:11,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081826884] [2024-11-13 14:20:11,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081826884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:20:11,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032501305] [2024-11-13 14:20:11,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:20:11,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:11,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:20:11,240 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:20:11,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:20:11,353 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:20:11,353 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:20:11,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 14:20:11,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:20:11,542 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 52 proven. 316 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2024-11-13 14:20:11,542 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:20:12,893 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 52 proven. 342 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-13 14:20:12,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032501305] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:20:12,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:20:12,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 13] total 23 [2024-11-13 14:20:12,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75134056] [2024-11-13 14:20:12,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:20:12,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 14:20:12,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:20:12,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 14:20:12,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:20:12,897 INFO L87 Difference]: Start difference. First operand 43 states and 66 transitions. Second operand has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 15 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (26), 13 states have call predecessors, (26), 15 states have call successors, (26) [2024-11-13 14:20:13,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:20:13,440 INFO L93 Difference]: Finished difference Result 114 states and 223 transitions. [2024-11-13 14:20:13,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-13 14:20:13,440 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 15 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (26), 13 states have call predecessors, (26), 15 states have call successors, (26) Word has length 132 [2024-11-13 14:20:13,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:20:13,443 INFO L225 Difference]: With dead ends: 114 [2024-11-13 14:20:13,443 INFO L226 Difference]: Without dead ends: 73 [2024-11-13 14:20:13,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 294 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=438, Invalid=1122, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 14:20:13,450 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 74 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:20:13,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 137 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:20:13,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-13 14:20:13,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 63. [2024-11-13 14:20:13,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 43 states have internal predecessors, (52), 11 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (37), 13 states have call predecessors, (37), 11 states have call successors, (37) [2024-11-13 14:20:13,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 100 transitions. [2024-11-13 14:20:13,474 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 100 transitions. Word has length 132 [2024-11-13 14:20:13,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:20:13,475 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 100 transitions. [2024-11-13 14:20:13,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 15 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (26), 13 states have call predecessors, (26), 15 states have call successors, (26) [2024-11-13 14:20:13,475 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 100 transitions. [2024-11-13 14:20:13,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-13 14:20:13,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:20:13,488 INFO L215 NwaCegarLoop]: trace histogram [67, 67, 54, 33, 33, 33, 33, 33, 33, 33, 21, 13, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:20:13,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:20:13,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:13,689 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:20:13,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:20:13,689 INFO L85 PathProgramCache]: Analyzing trace with hash 534519633, now seen corresponding path program 3 times [2024-11-13 14:20:13,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:20:13,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326962734] [2024-11-13 14:20:13,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:13,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:20:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:14,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:14,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:20:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 14:20:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 14:20:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:20:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-13 14:20:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:15,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:20:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 14:20:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 14:20:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:20:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 14:20:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 14:20:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:20:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 12387 backedges. 924 proven. 2486 refuted. 0 times theorem prover too weak. 8977 trivial. 0 not checked. [2024-11-13 14:20:16,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:20:16,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326962734] [2024-11-13 14:20:16,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326962734] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:20:16,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150512195] [2024-11-13 14:20:16,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:20:16,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:16,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:20:16,395 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:20:16,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:20:16,628 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2024-11-13 14:20:16,628 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:20:16,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:20:16,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:20:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 12387 backedges. 254 proven. 2070 refuted. 0 times theorem prover too weak. 10063 trivial. 0 not checked. [2024-11-13 14:20:16,793 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:20:20,014 INFO L134 CoverageAnalysis]: Checked inductivity of 12387 backedges. 254 proven. 2127 refuted. 0 times theorem prover too weak. 10006 trivial. 0 not checked. [2024-11-13 14:20:20,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150512195] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:20:20,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:20:20,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 11, 17] total 35 [2024-11-13 14:20:20,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43288078] [2024-11-13 14:20:20,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:20:20,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-13 14:20:20,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:20:20,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-13 14:20:20,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=909, Unknown=0, NotChecked=0, Total=1190 [2024-11-13 14:20:20,019 INFO L87 Difference]: Start difference. First operand 63 states and 100 transitions. Second operand has 35 states, 35 states have (on average 2.5428571428571427) internal successors, (89), 35 states have internal predecessors, (89), 25 states have call successors, (29), 1 states have call predecessors, (29), 14 states have return successors, (44), 25 states have call predecessors, (44), 25 states have call successors, (44) [2024-11-13 14:20:20,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:20:20,863 INFO L93 Difference]: Finished difference Result 187 states and 400 transitions. [2024-11-13 14:20:20,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-13 14:20:20,864 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5428571428571427) internal successors, (89), 35 states have internal predecessors, (89), 25 states have call successors, (29), 1 states have call predecessors, (29), 14 states have return successors, (44), 25 states have call predecessors, (44), 25 states have call successors, (44) Word has length 461 [2024-11-13 14:20:20,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:20:20,871 INFO L225 Difference]: With dead ends: 187 [2024-11-13 14:20:20,872 INFO L226 Difference]: Without dead ends: 126 [2024-11-13 14:20:20,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 1039 SyntacticMatches, 6 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=830, Invalid=2592, Unknown=0, NotChecked=0, Total=3422 [2024-11-13 14:20:20,880 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 169 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:20:20,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 209 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:20:20,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-13 14:20:20,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 108. [2024-11-13 14:20:20,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 77 states have (on average 1.1168831168831168) internal successors, (86), 74 states have internal predecessors, (86), 20 states have call successors, (20), 15 states have call predecessors, (20), 10 states have return successors, (51), 18 states have call predecessors, (51), 20 states have call successors, (51) [2024-11-13 14:20:20,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 157 transitions. [2024-11-13 14:20:20,918 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 157 transitions. Word has length 461 [2024-11-13 14:20:20,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:20:20,919 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 157 transitions. [2024-11-13 14:20:20,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.5428571428571427) internal successors, (89), 35 states have internal predecessors, (89), 25 states have call successors, (29), 1 states have call predecessors, (29), 14 states have return successors, (44), 25 states have call predecessors, (44), 25 states have call successors, (44) [2024-11-13 14:20:20,919 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 157 transitions. [2024-11-13 14:20:20,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 748 [2024-11-13 14:20:20,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:20:20,944 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 88, 54, 54, 54, 54, 54, 54, 54, 34, 21, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:20:20,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 14:20:21,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:21,148 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:20:21,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:20:21,149 INFO L85 PathProgramCache]: Analyzing trace with hash -425340118, now seen corresponding path program 4 times [2024-11-13 14:20:21,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:20:21,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303206161] [2024-11-13 14:20:21,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:21,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:20:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:28,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:33,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:35,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:35,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:20:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 14:20:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 14:20:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:20:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-13 14:20:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:20:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 14:20:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:36,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-11-13 14:20:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:20:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:37,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 14:20:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 14:20:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:20:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:37,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2024-11-13 14:20:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:20:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 14:20:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 14:20:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:20:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-13 14:20:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:20:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 14:20:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:20:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:20:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:20:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:38,738 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2024-11-13 14:20:38,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:20:38,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303206161] [2024-11-13 14:20:38,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303206161] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:20:38,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162342021] [2024-11-13 14:20:38,739 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 14:20:38,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:38,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:20:38,742 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:20:38,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 14:20:39,075 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 14:20:39,075 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:20:39,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 1677 conjuncts, 220 conjuncts are in the unsatisfiable core [2024-11-13 14:20:39,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:20:40,027 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2024-11-13 14:20:40,027 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:21:08,438 WARN L286 SmtUtils]: Spent 5.00s on a formula simplification that was a NOOP. DAG size: 491 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-13 14:22:39,297 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2024-11-13 14:22:39,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162342021] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:22:39,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:22:39,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 36 [2024-11-13 14:22:39,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828455208] [2024-11-13 14:22:39,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:22:39,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-13 14:22:39,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:22:39,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-13 14:22:39,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=1013, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 14:22:39,302 INFO L87 Difference]: Start difference. First operand 108 states and 157 transitions. Second operand has 36 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 19 states have internal predecessors, (43), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-13 14:22:39,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:22:39,656 INFO L93 Difference]: Finished difference Result 138 states and 209 transitions. [2024-11-13 14:22:39,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-13 14:22:39,657 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 19 states have internal predecessors, (43), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) Word has length 747 [2024-11-13 14:22:39,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:22:39,661 INFO L225 Difference]: With dead ends: 138 [2024-11-13 14:22:39,662 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 14:22:39,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1938 GetRequests, 1679 SyntacticMatches, 218 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5811 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=415, Invalid=1391, Unknown=0, NotChecked=0, Total=1806 [2024-11-13 14:22:39,664 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:22:39,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 381 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:22:39,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 14:22:39,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 14:22:39,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:22:39,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 14:22:39,668 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 747 [2024-11-13 14:22:39,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:22:39,668 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:22:39,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 19 states have internal predecessors, (43), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-13 14:22:39,668 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 14:22:39,668 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 14:22:39,672 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 14:22:39,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 14:22:39,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-13 14:22:39,879 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2024-11-13 14:22:39,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 14:22:41,123 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:22:41,158 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 14:22:41,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:22:41 BoogieIcfgContainer [2024-11-13 14:22:41,166 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:22:41,167 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:22:41,167 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:22:41,167 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:22:41,168 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:20:06" (3/4) ... [2024-11-13 14:22:41,170 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 14:22:41,175 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibonacci [2024-11-13 14:22:41,178 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-13 14:22:41,180 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 14:22:41,180 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 14:22:41,180 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 14:22:41,257 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 14:22:41,257 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 14:22:41,257 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:22:41,258 INFO L158 Benchmark]: Toolchain (without parser) took 155742.67ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 93.5MB in the beginning and 1.1GB in the end (delta: -990.1MB). Peak memory consumption was 439.4MB. Max. memory is 16.1GB. [2024-11-13 14:22:41,258 INFO L158 Benchmark]: CDTParser took 0.85ms. Allocated memory is still 117.4MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:22:41,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.31ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 82.7MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:22:41,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.97ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:22:41,259 INFO L158 Benchmark]: Boogie Preprocessor took 33.86ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.7MB in the end (delta: 939.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:22:41,259 INFO L158 Benchmark]: RCFGBuilder took 299.81ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 71.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:22:41,260 INFO L158 Benchmark]: TraceAbstraction took 155025.22ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 70.5MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 422.6MB. Max. memory is 16.1GB. [2024-11-13 14:22:41,260 INFO L158 Benchmark]: Witness Printer took 90.17ms. Allocated memory is still 1.6GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:22:41,262 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85ms. Allocated memory is still 117.4MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.31ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 82.7MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.97ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.86ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.7MB in the end (delta: 939.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 299.81ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 71.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 155025.22ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 70.5MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 422.6MB. Max. memory is 16.1GB. * Witness Printer took 90.17ms. Allocated memory is still 1.6GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 153.7s, OverallIterations: 7, TraceHistogramMax: 109, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 339 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 317 mSDsluCounter, 1004 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 847 mSDsCounter, 424 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1321 IncrementalHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 424 mSolverCounterUnsat, 157 mSDtfsCounter, 1321 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3620 GetRequests, 3208 SyntacticMatches, 231 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7404 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=6, InterpolantAutomatonStates: 140, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 35 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 148.4s InterpolantComputationTime, 2883 NumberOfCodeBlocks, 2681 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 4296 ConstructedInterpolants, 0 QuantifiedInterpolants, 8140 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2817 ConjunctsInSsa, 262 ConjunctsInUnsatCore, 17 InterpolantComputations, 2 PerfectInterpolantSequences, 117178/139770 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 16]: Procedure Contract for fibonacci Derived contract for procedure fibonacci. Ensures: (((n < 1) || (0 < \result)) && (0 <= \result)) RESULT: Ultimate proved your program to be correct! [2024-11-13 14:22:41,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c927edca-93ee-4444-a75d-df87ddfa3d7a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE