./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label47+token_ring.06.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label47+token_ring.06.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8321a367d25b54b23b2762d5ecbfeee51530317d33e488964270d878a9001f5b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:17:42,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:17:42,083 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:17:42,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:17:42,101 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:17:42,134 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:17:42,134 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:17:42,135 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:17:42,136 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:17:42,137 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:17:42,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:17:42,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:17:42,139 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:17:42,140 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:17:42,141 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:17:42,141 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:17:42,141 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:17:42,141 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:17:42,142 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:17:42,142 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:17:42,142 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:17:42,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:17:42,145 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:17:42,145 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:17:42,145 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:17:42,146 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:17:42,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:17:42,146 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:17:42,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:17:42,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:17:42,147 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:17:42,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:17:42,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:17:42,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:17:42,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:17:42,148 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:17:42,149 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:17:42,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:17:42,149 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:17:42,149 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:17:42,150 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:17:42,150 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:17:42,151 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8321a367d25b54b23b2762d5ecbfeee51530317d33e488964270d878a9001f5b [2024-11-11 22:17:42,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:17:42,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:17:42,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:17:42,506 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:17:42,507 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:17:42,508 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label47+token_ring.06.cil-2.c [2024-11-11 22:17:43,997 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:17:44,603 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:17:44,604 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.06.cil-2.c [2024-11-11 22:17:44,645 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f08e9af75/1e2cf1e0883640938609f5cc5052732e/FLAG287aac7e6 [2024-11-11 22:17:44,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f08e9af75/1e2cf1e0883640938609f5cc5052732e [2024-11-11 22:17:44,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:17:44,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:17:44,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:17:44,669 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:17:44,674 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:17:44,675 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:17:44" (1/1) ... [2024-11-11 22:17:44,676 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7e0d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:44, skipping insertion in model container [2024-11-11 22:17:44,676 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:17:44" (1/1) ... [2024-11-11 22:17:44,816 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:17:46,487 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.06.cil-2.c[377612,377625] [2024-11-11 22:17:46,520 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.06.cil-2.c[383339,383352] [2024-11-11 22:17:46,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:17:46,746 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:17:47,536 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.06.cil-2.c[377612,377625] [2024-11-11 22:17:47,543 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.06.cil-2.c[383339,383352] [2024-11-11 22:17:47,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:17:47,621 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:17:47,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:47 WrapperNode [2024-11-11 22:17:47,622 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:17:47,623 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:17:47,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:17:47,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:17:47,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:47" (1/1) ... [2024-11-11 22:17:47,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:47" (1/1) ... [2024-11-11 22:17:48,093 INFO L138 Inliner]: procedures = 56, calls = 59, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 12873 [2024-11-11 22:17:48,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:17:48,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:17:48,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:17:48,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:17:48,206 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:47" (1/1) ... [2024-11-11 22:17:48,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:47" (1/1) ... [2024-11-11 22:17:48,309 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:47" (1/1) ... [2024-11-11 22:17:48,389 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]. [2024-11-11 22:17:48,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:47" (1/1) ... [2024-11-11 22:17:48,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:47" (1/1) ... [2024-11-11 22:17:48,752 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:47" (1/1) ... [2024-11-11 22:17:48,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:47" (1/1) ... [2024-11-11 22:17:48,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:47" (1/1) ... [2024-11-11 22:17:48,885 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:47" (1/1) ... [2024-11-11 22:17:49,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:17:49,028 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:17:49,029 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:17:49,029 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:17:49,031 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:47" (1/1) ... [2024-11-11 22:17:49,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:17:49,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:17:49,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 22:17:49,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 22:17:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:17:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 22:17:49,177 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 22:17:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:17:49,178 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:17:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 22:17:49,179 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 22:17:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 22:17:49,179 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 22:17:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 22:17:49,180 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 22:17:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 22:17:49,180 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 22:17:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:17:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:17:49,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:17:49,317 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:17:49,319 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:17:57,010 INFO L? ?]: Removed 1719 outVars from TransFormulas that were not future-live. [2024-11-11 22:17:57,010 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:17:57,077 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:17:57,077 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-11 22:17:57,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:17:57 BoogieIcfgContainer [2024-11-11 22:17:57,078 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:17:57,080 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:17:57,080 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:17:57,083 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:17:57,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:17:44" (1/3) ... [2024-11-11 22:17:57,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb1f17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:17:57, skipping insertion in model container [2024-11-11 22:17:57,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:47" (2/3) ... [2024-11-11 22:17:57,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb1f17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:17:57, skipping insertion in model container [2024-11-11 22:17:57,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:17:57" (3/3) ... [2024-11-11 22:17:57,086 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.06.cil-2.c [2024-11-11 22:17:57,102 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:17:57,102 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:17:57,230 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:17:57,237 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;@3d1ea535, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:17:57,237 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:17:57,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 2422 states, 2393 states have (on average 1.8487254492269118) internal successors, (4424), 2396 states have internal predecessors, (4424), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-11 22:17:57,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 22:17:57,265 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:57,266 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:17:57,267 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:57,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:57,274 INFO L85 PathProgramCache]: Analyzing trace with hash -603322071, now seen corresponding path program 1 times [2024-11-11 22:17:57,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:57,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629680589] [2024-11-11 22:17:57,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:57,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:57,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:57,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:17:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:57,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:17:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:57,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:17:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:57,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:17:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:57,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:17:57,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:57,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629680589] [2024-11-11 22:17:57,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629680589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:57,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:57,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:17:57,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052200163] [2024-11-11 22:17:57,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:57,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:17:57,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:57,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:17:57,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:17:57,840 INFO L87 Difference]: Start difference. First operand has 2422 states, 2393 states have (on average 1.8487254492269118) internal successors, (4424), 2396 states have internal predecessors, (4424), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:58,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:17:58,897 INFO L93 Difference]: Finished difference Result 4910 states and 9040 transitions. [2024-11-11 22:17:58,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:17:58,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-11 22:17:58,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:17:58,928 INFO L225 Difference]: With dead ends: 4910 [2024-11-11 22:17:58,929 INFO L226 Difference]: Without dead ends: 2431 [2024-11-11 22:17:58,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:17:58,940 INFO L435 NwaCegarLoop]: 4245 mSDtfsCounter, 595 mSDsluCounter, 12323 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 16568 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:17:58,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 16568 Invalid, 615 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:17:58,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2024-11-11 22:17:59,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2355. [2024-11-11 22:17:59,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2327 states have (on average 1.8362698753760207) internal successors, (4273), 2329 states have internal predecessors, (4273), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-11 22:17:59,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 4313 transitions. [2024-11-11 22:17:59,089 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 4313 transitions. Word has length 112 [2024-11-11 22:17:59,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:17:59,090 INFO L471 AbstractCegarLoop]: Abstraction has 2355 states and 4313 transitions. [2024-11-11 22:17:59,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:59,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 4313 transitions. [2024-11-11 22:17:59,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 22:17:59,097 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:59,097 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:17:59,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:17:59,098 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:59,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:59,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1634362969, now seen corresponding path program 1 times [2024-11-11 22:17:59,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:59,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146909483] [2024-11-11 22:17:59,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:59,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:59,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:59,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:17:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:59,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:17:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:59,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:17:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:59,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:17:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:59,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:17:59,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:59,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146909483] [2024-11-11 22:17:59,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146909483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:59,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:59,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:17:59,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354633495] [2024-11-11 22:17:59,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:59,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:17:59,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:59,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:17:59,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:17:59,477 INFO L87 Difference]: Start difference. First operand 2355 states and 4313 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:01,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:01,891 INFO L93 Difference]: Finished difference Result 2966 states and 5283 transitions. [2024-11-11 22:18:01,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:18:01,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-11 22:18:01,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:01,904 INFO L225 Difference]: With dead ends: 2966 [2024-11-11 22:18:01,905 INFO L226 Difference]: Without dead ends: 2746 [2024-11-11 22:18:01,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:18:01,907 INFO L435 NwaCegarLoop]: 4310 mSDtfsCounter, 4796 mSDsluCounter, 17001 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 21311 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:01,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 21311 Invalid, 2147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 2093 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 22:18:01,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2024-11-11 22:18:01,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2585. [2024-11-11 22:18:01,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2585 states, 2532 states have (on average 1.8131911532385465) internal successors, (4591), 2536 states have internal predecessors, (4591), 37 states have call successors, (37), 12 states have call predecessors, (37), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2024-11-11 22:18:01,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2585 states to 2585 states and 4672 transitions. [2024-11-11 22:18:01,990 INFO L78 Accepts]: Start accepts. Automaton has 2585 states and 4672 transitions. Word has length 112 [2024-11-11 22:18:01,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:01,990 INFO L471 AbstractCegarLoop]: Abstraction has 2585 states and 4672 transitions. [2024-11-11 22:18:01,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:01,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2585 states and 4672 transitions. [2024-11-11 22:18:01,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 22:18:01,994 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:01,994 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:18:01,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:18:01,998 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:01,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:01,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1041629413, now seen corresponding path program 1 times [2024-11-11 22:18:01,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:01,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141462481] [2024-11-11 22:18:01,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:01,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:02,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:02,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:18:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:02,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:18:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:02,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:18:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:02,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:18:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:02,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:18:02,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:02,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141462481] [2024-11-11 22:18:02,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141462481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:02,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:02,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:02,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465020781] [2024-11-11 22:18:02,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:02,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:02,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:02,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:02,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:02,283 INFO L87 Difference]: Start difference. First operand 2585 states and 4672 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:04,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:04,286 INFO L93 Difference]: Finished difference Result 3746 states and 6496 transitions. [2024-11-11 22:18:04,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:18:04,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-11 22:18:04,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:04,305 INFO L225 Difference]: With dead ends: 3746 [2024-11-11 22:18:04,305 INFO L226 Difference]: Without dead ends: 3298 [2024-11-11 22:18:04,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:18:04,314 INFO L435 NwaCegarLoop]: 4267 mSDtfsCounter, 4821 mSDsluCounter, 16938 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4834 SdHoareTripleChecker+Valid, 21205 SdHoareTripleChecker+Invalid, 1951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:04,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4834 Valid, 21205 Invalid, 1951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-11 22:18:04,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3298 states. [2024-11-11 22:18:04,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3298 to 3009. [2024-11-11 22:18:04,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3009 states, 2912 states have (on average 1.7747252747252746) internal successors, (5168), 2918 states have internal predecessors, (5168), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-11-11 22:18:04,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3009 states to 3009 states and 5319 transitions. [2024-11-11 22:18:04,434 INFO L78 Accepts]: Start accepts. Automaton has 3009 states and 5319 transitions. Word has length 112 [2024-11-11 22:18:04,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:04,434 INFO L471 AbstractCegarLoop]: Abstraction has 3009 states and 5319 transitions. [2024-11-11 22:18:04,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:04,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3009 states and 5319 transitions. [2024-11-11 22:18:04,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 22:18:04,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:04,439 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:18:04,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:18:04,440 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:04,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:04,441 INFO L85 PathProgramCache]: Analyzing trace with hash 158120423, now seen corresponding path program 1 times [2024-11-11 22:18:04,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:04,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587431781] [2024-11-11 22:18:04,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:04,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:04,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:04,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:18:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:04,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:18:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:04,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:18:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:04,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:18:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:04,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:18:04,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:04,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587431781] [2024-11-11 22:18:04,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587431781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:04,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:04,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:04,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303718862] [2024-11-11 22:18:04,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:04,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:04,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:04,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:04,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:04,652 INFO L87 Difference]: Start difference. First operand 3009 states and 5319 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:06,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:06,658 INFO L93 Difference]: Finished difference Result 5272 states and 8863 transitions. [2024-11-11 22:18:06,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:18:06,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-11 22:18:06,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:06,678 INFO L225 Difference]: With dead ends: 5272 [2024-11-11 22:18:06,678 INFO L226 Difference]: Without dead ends: 4400 [2024-11-11 22:18:06,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:18:06,683 INFO L435 NwaCegarLoop]: 4304 mSDtfsCounter, 4796 mSDsluCounter, 17001 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 21305 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:06,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 21305 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:18:06,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4400 states. [2024-11-11 22:18:06,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4400 to 3859. [2024-11-11 22:18:06,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3859 states, 3674 states have (on average 1.7212847033206315) internal successors, (6324), 3684 states have internal predecessors, (6324), 127 states have call successors, (127), 48 states have call predecessors, (127), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2024-11-11 22:18:06,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 6621 transitions. [2024-11-11 22:18:06,824 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 6621 transitions. Word has length 112 [2024-11-11 22:18:06,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:06,825 INFO L471 AbstractCegarLoop]: Abstraction has 3859 states and 6621 transitions. [2024-11-11 22:18:06,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:06,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 6621 transitions. [2024-11-11 22:18:06,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 22:18:06,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:06,828 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:18:06,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:18:06,829 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:06,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:06,829 INFO L85 PathProgramCache]: Analyzing trace with hash 129620133, now seen corresponding path program 1 times [2024-11-11 22:18:06,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:06,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445010611] [2024-11-11 22:18:06,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:06,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:06,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:06,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:18:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:06,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:18:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:07,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:18:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:07,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:18:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:07,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:18:07,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:07,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445010611] [2024-11-11 22:18:07,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445010611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:07,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:07,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:07,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630160704] [2024-11-11 22:18:07,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:07,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:07,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:07,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:07,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:07,013 INFO L87 Difference]: Start difference. First operand 3859 states and 6621 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:08,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:08,759 INFO L93 Difference]: Finished difference Result 8322 states and 13611 transitions. [2024-11-11 22:18:08,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:18:08,760 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-11 22:18:08,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:08,790 INFO L225 Difference]: With dead ends: 8322 [2024-11-11 22:18:08,790 INFO L226 Difference]: Without dead ends: 6600 [2024-11-11 22:18:08,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:18:08,800 INFO L435 NwaCegarLoop]: 4306 mSDtfsCounter, 4796 mSDsluCounter, 17001 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 21307 SdHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:08,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 21307 Invalid, 2125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:18:08,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6600 states. [2024-11-11 22:18:09,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6600 to 5565. [2024-11-11 22:18:09,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5565 states, 5204 states have (on average 1.6610299769408148) internal successors, (8644), 5222 states have internal predecessors, (8644), 247 states have call successors, (247), 96 states have call predecessors, (247), 112 states have return successors, (360), 262 states have call predecessors, (360), 247 states have call successors, (360) [2024-11-11 22:18:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5565 states to 5565 states and 9251 transitions. [2024-11-11 22:18:09,163 INFO L78 Accepts]: Start accepts. Automaton has 5565 states and 9251 transitions. Word has length 112 [2024-11-11 22:18:09,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:09,164 INFO L471 AbstractCegarLoop]: Abstraction has 5565 states and 9251 transitions. [2024-11-11 22:18:09,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:09,164 INFO L276 IsEmpty]: Start isEmpty. Operand 5565 states and 9251 transitions. [2024-11-11 22:18:09,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 22:18:09,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:09,169 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:18:09,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:18:09,170 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:09,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:09,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1810961881, now seen corresponding path program 1 times [2024-11-11 22:18:09,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:09,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123247248] [2024-11-11 22:18:09,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:09,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:09,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:09,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:18:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:09,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:18:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:09,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:18:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:09,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:18:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:09,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:18:09,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:09,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123247248] [2024-11-11 22:18:09,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123247248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:09,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:09,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:09,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751183366] [2024-11-11 22:18:09,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:09,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:09,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:09,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:09,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:09,392 INFO L87 Difference]: Start difference. First operand 5565 states and 9251 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:11,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:11,729 INFO L93 Difference]: Finished difference Result 14420 states and 23163 transitions. [2024-11-11 22:18:11,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:18:11,730 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-11 22:18:11,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:11,803 INFO L225 Difference]: With dead ends: 14420 [2024-11-11 22:18:11,803 INFO L226 Difference]: Without dead ends: 10992 [2024-11-11 22:18:11,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:18:11,825 INFO L435 NwaCegarLoop]: 4307 mSDtfsCounter, 4796 mSDsluCounter, 17001 mSDsCounter, 0 mSdLazyCounter, 2065 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 21308 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:11,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 21308 Invalid, 2121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 2065 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:18:11,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10992 states. [2024-11-11 22:18:12,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10992 to 8991. [2024-11-11 22:18:12,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8991 states, 8278 states have (on average 1.6071514858661513) internal successors, (13304), 8312 states have internal predecessors, (13304), 487 states have call successors, (487), 192 states have call predecessors, (487), 224 states have return successors, (794), 518 states have call predecessors, (794), 487 states have call successors, (794) [2024-11-11 22:18:12,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8991 states to 8991 states and 14585 transitions. [2024-11-11 22:18:12,457 INFO L78 Accepts]: Start accepts. Automaton has 8991 states and 14585 transitions. Word has length 112 [2024-11-11 22:18:12,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:12,458 INFO L471 AbstractCegarLoop]: Abstraction has 8991 states and 14585 transitions. [2024-11-11 22:18:12,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:12,459 INFO L276 IsEmpty]: Start isEmpty. Operand 8991 states and 14585 transitions. [2024-11-11 22:18:12,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 22:18:12,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:12,466 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:18:12,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:18:12,467 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:12,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:12,467 INFO L85 PathProgramCache]: Analyzing trace with hash 66101349, now seen corresponding path program 1 times [2024-11-11 22:18:12,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:12,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359954847] [2024-11-11 22:18:12,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:12,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:12,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:12,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:18:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:12,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:18:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:12,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:18:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:12,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:18:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:12,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:18:12,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:12,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359954847] [2024-11-11 22:18:12,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359954847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:12,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:12,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:12,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077917825] [2024-11-11 22:18:12,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:12,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:12,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:12,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:12,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:12,646 INFO L87 Difference]: Start difference. First operand 8991 states and 14585 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:14,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:14,882 INFO L93 Difference]: Finished difference Result 26614 states and 42455 transitions. [2024-11-11 22:18:14,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:18:14,882 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-11 22:18:14,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:14,954 INFO L225 Difference]: With dead ends: 26614 [2024-11-11 22:18:14,956 INFO L226 Difference]: Without dead ends: 19760 [2024-11-11 22:18:14,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:18:14,990 INFO L435 NwaCegarLoop]: 4307 mSDtfsCounter, 4796 mSDsluCounter, 17001 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 21308 SdHoareTripleChecker+Invalid, 2112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:14,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 21308 Invalid, 2112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:18:15,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19760 states. [2024-11-11 22:18:15,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19760 to 15873. [2024-11-11 22:18:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15873 states, 14456 states have (on average 1.5680686220254565) internal successors, (22668), 14522 states have internal predecessors, (22668), 967 states have call successors, (967), 384 states have call predecessors, (967), 448 states have return successors, (1824), 1030 states have call predecessors, (1824), 967 states have call successors, (1824) [2024-11-11 22:18:15,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15873 states to 15873 states and 25459 transitions. [2024-11-11 22:18:15,791 INFO L78 Accepts]: Start accepts. Automaton has 15873 states and 25459 transitions. Word has length 112 [2024-11-11 22:18:15,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:15,792 INFO L471 AbstractCegarLoop]: Abstraction has 15873 states and 25459 transitions. [2024-11-11 22:18:15,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:15,792 INFO L276 IsEmpty]: Start isEmpty. Operand 15873 states and 25459 transitions. [2024-11-11 22:18:15,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 22:18:15,803 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:15,804 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:18:15,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:18:15,804 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:15,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:15,805 INFO L85 PathProgramCache]: Analyzing trace with hash -704632217, now seen corresponding path program 1 times [2024-11-11 22:18:15,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:15,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14911337] [2024-11-11 22:18:15,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:15,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:15,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:15,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:18:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:15,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:18:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:16,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:18:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:16,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:18:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:16,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:18:16,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:16,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14911337] [2024-11-11 22:18:16,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14911337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:16,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:16,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:16,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293887656] [2024-11-11 22:18:16,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:16,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:16,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:16,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:16,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:16,018 INFO L87 Difference]: Start difference. First operand 15873 states and 25459 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:19,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:19,082 INFO L93 Difference]: Finished difference Result 56952 states and 90597 transitions. [2024-11-11 22:18:19,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:18:19,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-11 22:18:19,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:19,280 INFO L225 Difference]: With dead ends: 56952 [2024-11-11 22:18:19,280 INFO L226 Difference]: Without dead ends: 43216 [2024-11-11 22:18:19,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:18:19,362 INFO L435 NwaCegarLoop]: 4304 mSDtfsCounter, 5054 mSDsluCounter, 16993 mSDsCounter, 0 mSdLazyCounter, 2030 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5074 SdHoareTripleChecker+Valid, 21297 SdHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:19,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5074 Valid, 21297 Invalid, 2089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2030 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:18:19,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43216 states. [2024-11-11 22:18:21,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43216 to 29507. [2024-11-11 22:18:21,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29507 states, 26746 states have (on average 1.546399461601735) internal successors, (41360), 26876 states have internal predecessors, (41360), 1863 states have call successors, (1863), 768 states have call predecessors, (1863), 896 states have return successors, (4306), 1990 states have call predecessors, (4306), 1863 states have call successors, (4306) [2024-11-11 22:18:21,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29507 states to 29507 states and 47529 transitions. [2024-11-11 22:18:21,659 INFO L78 Accepts]: Start accepts. Automaton has 29507 states and 47529 transitions. Word has length 112 [2024-11-11 22:18:21,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:21,660 INFO L471 AbstractCegarLoop]: Abstraction has 29507 states and 47529 transitions. [2024-11-11 22:18:21,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:21,660 INFO L276 IsEmpty]: Start isEmpty. Operand 29507 states and 47529 transitions. [2024-11-11 22:18:21,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 22:18:21,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:21,682 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:18:21,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:18:21,683 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:21,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:21,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1699325915, now seen corresponding path program 1 times [2024-11-11 22:18:21,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:21,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723871106] [2024-11-11 22:18:21,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:21,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:21,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:21,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:18:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:21,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:18:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:21,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:18:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:21,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:18:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:21,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:18:21,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:21,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723871106] [2024-11-11 22:18:21,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723871106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:21,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:21,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:21,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399635993] [2024-11-11 22:18:21,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:21,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:21,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:21,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:21,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:21,849 INFO L87 Difference]: Start difference. First operand 29507 states and 47529 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:26,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:26,823 INFO L93 Difference]: Finished difference Result 107773 states and 173881 transitions. [2024-11-11 22:18:26,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:18:26,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-11 22:18:26,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:27,113 INFO L225 Difference]: With dead ends: 107773 [2024-11-11 22:18:27,113 INFO L226 Difference]: Without dead ends: 80403 [2024-11-11 22:18:27,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:18:27,207 INFO L435 NwaCegarLoop]: 4303 mSDtfsCounter, 4989 mSDsluCounter, 16993 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5009 SdHoareTripleChecker+Valid, 21296 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:27,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5009 Valid, 21296 Invalid, 2029 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:18:27,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80403 states. [2024-11-11 22:18:30,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80403 to 56837. [2024-11-11 22:18:30,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56837 states, 51452 states have (on average 1.536577781232994) internal successors, (79060), 51710 states have internal predecessors, (79060), 3591 states have call successors, (3591), 1536 states have call predecessors, (3591), 1792 states have return successors, (10664), 3846 states have call predecessors, (10664), 3591 states have call successors, (10664) [2024-11-11 22:18:31,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56837 states to 56837 states and 93315 transitions. [2024-11-11 22:18:31,078 INFO L78 Accepts]: Start accepts. Automaton has 56837 states and 93315 transitions. Word has length 112 [2024-11-11 22:18:31,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:31,078 INFO L471 AbstractCegarLoop]: Abstraction has 56837 states and 93315 transitions. [2024-11-11 22:18:31,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:31,079 INFO L276 IsEmpty]: Start isEmpty. Operand 56837 states and 93315 transitions. [2024-11-11 22:18:31,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 22:18:31,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:31,113 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:18:31,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:18:31,113 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:31,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:31,114 INFO L85 PathProgramCache]: Analyzing trace with hash 637066595, now seen corresponding path program 1 times [2024-11-11 22:18:31,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:31,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155738975] [2024-11-11 22:18:31,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:31,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:31,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:31,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:18:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:31,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:18:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:31,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:18:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:31,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 22:18:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:31,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:18:31,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:31,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155738975] [2024-11-11 22:18:31,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155738975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:31,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:31,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:31,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459270836] [2024-11-11 22:18:31,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:31,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:31,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:31,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:31,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:31,269 INFO L87 Difference]: Start difference. First operand 56837 states and 93315 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:39,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:39,669 INFO L93 Difference]: Finished difference Result 208707 states and 345053 transitions. [2024-11-11 22:18:39,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:18:39,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-11 22:18:39,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:40,421 INFO L225 Difference]: With dead ends: 208707 [2024-11-11 22:18:40,421 INFO L226 Difference]: Without dead ends: 154007 [2024-11-11 22:18:40,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:18:40,701 INFO L435 NwaCegarLoop]: 4268 mSDtfsCounter, 4962 mSDsluCounter, 16933 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4982 SdHoareTripleChecker+Valid, 21201 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:40,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4982 Valid, 21201 Invalid, 1904 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:18:40,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154007 states.