./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.10.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_label43+token_ring.10.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 87df5a94129a3baa1e2e3650ee6bffcda9607641da2006311f5769f81726e25d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:10:49,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:10:49,370 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:10:49,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:10:49,376 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:10:49,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:10:49,404 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:10:49,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:10:49,405 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:10:49,407 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:10:49,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:10:49,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:10:49,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:10:49,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:10:49,411 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:10:49,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:10:49,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:10:49,411 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:10:49,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:10:49,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:10:49,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:10:49,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:10:49,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:10:49,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:10:49,413 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:10:49,413 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:10:49,413 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:10:49,414 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:10:49,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:10:49,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:10:49,415 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:10:49,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:10:49,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:10:49,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:10:49,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:10:49,416 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:10:49,416 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:10:49,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:10:49,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:10:49,418 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:10:49,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:10:49,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:10:49,418 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87df5a94129a3baa1e2e3650ee6bffcda9607641da2006311f5769f81726e25d [2024-11-11 22:10:49,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:10:49,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:10:49,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:10:49,675 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:10:49,675 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:10:49,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.10.cil-2.c [2024-11-11 22:10:51,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:10:51,591 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:10:51,592 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.10.cil-2.c [2024-11-11 22:10:51,638 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e89498c/95ff0100121e409eb7fca7b35c3e1231/FLAG72efd3dba [2024-11-11 22:10:51,653 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e89498c/95ff0100121e409eb7fca7b35c3e1231 [2024-11-11 22:10:51,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:10:51,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:10:51,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:10:51,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:10:51,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:10:51,663 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:10:51" (1/1) ... [2024-11-11 22:10:51,664 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fd0ebdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:51, skipping insertion in model container [2024-11-11 22:10:51,664 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:10:51" (1/1) ... [2024-11-11 22:10:51,793 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:10:53,227 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_label43+token_ring.10.cil-2.c[381679,381692] [2024-11-11 22:10:53,247 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_label43+token_ring.10.cil-2.c[383339,383352] [2024-11-11 22:10:53,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:10:53,443 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:10:54,045 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_label43+token_ring.10.cil-2.c[381679,381692] [2024-11-11 22:10:54,050 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_label43+token_ring.10.cil-2.c[383339,383352] [2024-11-11 22:10:54,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:10:54,114 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:10:54,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:54 WrapperNode [2024-11-11 22:10:54,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:10:54,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:10:54,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:10:54,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:10:54,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:54" (1/1) ... [2024-11-11 22:10:54,187 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:54" (1/1) ... [2024-11-11 22:10:54,520 INFO L138 Inliner]: procedures = 64, calls = 71, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 13113 [2024-11-11 22:10:54,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:10:54,521 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:10:54,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:10:54,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:10:54,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:54" (1/1) ... [2024-11-11 22:10:54,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:54" (1/1) ... [2024-11-11 22:10:54,581 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:54" (1/1) ... [2024-11-11 22:10:54,672 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 22:10:54,672 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:54" (1/1) ... [2024-11-11 22:10:54,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:54" (1/1) ... [2024-11-11 22:10:54,879 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:54" (1/1) ... [2024-11-11 22:10:54,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:54" (1/1) ... [2024-11-11 22:10:54,939 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:54" (1/1) ... [2024-11-11 22:10:54,959 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:54" (1/1) ... [2024-11-11 22:10:54,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:10:54,999 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:10:54,999 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:10:54,999 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:10:55,000 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:54" (1/1) ... [2024-11-11 22:10:55,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:10:55,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:10:55,029 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 22:10:55,031 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 22:10:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:10:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 22:10:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 22:10:55,067 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:10:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:10:55,067 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 22:10:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 22:10:55,067 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 22:10:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 22:10:55,067 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 22:10:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 22:10:55,067 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 22:10:55,067 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 22:10:55,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:10:55,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:10:55,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:10:55,168 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:10:55,170 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:11:01,535 INFO L? ?]: Removed 1743 outVars from TransFormulas that were not future-live. [2024-11-11 22:11:01,536 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:11:01,589 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:11:01,589 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-11 22:11:01,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:11:01 BoogieIcfgContainer [2024-11-11 22:11:01,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:11:01,594 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:11:01,594 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:11:01,597 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:11:01,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:10:51" (1/3) ... [2024-11-11 22:11:01,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7c37ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:11:01, skipping insertion in model container [2024-11-11 22:11:01,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:54" (2/3) ... [2024-11-11 22:11:01,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7c37ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:11:01, skipping insertion in model container [2024-11-11 22:11:01,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:11:01" (3/3) ... [2024-11-11 22:11:01,599 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.10.cil-2.c [2024-11-11 22:11:01,615 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:11:01,615 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:11:01,715 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:11:01,720 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;@5caba304, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:11:01,720 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:11:01,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 2526 states, 2493 states have (on average 1.8419574809466506) internal successors, (4592), 2496 states have internal predecessors, (4592), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-11 22:11:01,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-11 22:11:01,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:01,749 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:01,750 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:01,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:01,759 INFO L85 PathProgramCache]: Analyzing trace with hash -2034921809, now seen corresponding path program 1 times [2024-11-11 22:11:01,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:01,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322233561] [2024-11-11 22:11:01,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:01,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:02,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:02,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-11 22:11:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:02,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 22:11:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:02,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 22:11:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:02,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 22:11:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:02,552 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 22:11:02,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:02,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322233561] [2024-11-11 22:11:02,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322233561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:02,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:02,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:11:02,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458818549] [2024-11-11 22:11:02,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:02,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:11:02,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:02,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:11:02,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:11:02,601 INFO L87 Difference]: Start difference. First operand has 2526 states, 2493 states have (on average 1.8419574809466506) internal successors, (4592), 2496 states have internal predecessors, (4592), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 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 22:11:03,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:03,950 INFO L93 Difference]: Finished difference Result 5162 states and 9468 transitions. [2024-11-11 22:11:03,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:11:03,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 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 156 [2024-11-11 22:11:03,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:03,980 INFO L225 Difference]: With dead ends: 5162 [2024-11-11 22:11:03,980 INFO L226 Difference]: Without dead ends: 2579 [2024-11-11 22:11:03,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:11:03,991 INFO L435 NwaCegarLoop]: 4337 mSDtfsCounter, 899 mSDsluCounter, 12435 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 16772 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:03,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 16772 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:11:04,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2579 states. [2024-11-11 22:11:04,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2579 to 2459. [2024-11-11 22:11:04,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2459 states, 2427 states have (on average 1.826534816646065) internal successors, (4433), 2429 states have internal predecessors, (4433), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-11 22:11:04,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2459 states to 2459 states and 4481 transitions. [2024-11-11 22:11:04,310 INFO L78 Accepts]: Start accepts. Automaton has 2459 states and 4481 transitions. Word has length 156 [2024-11-11 22:11:04,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:04,311 INFO L471 AbstractCegarLoop]: Abstraction has 2459 states and 4481 transitions. [2024-11-11 22:11:04,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 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 22:11:04,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2459 states and 4481 transitions. [2024-11-11 22:11:04,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-11 22:11:04,323 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:04,323 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:04,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:11:04,323 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:04,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:04,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1833490989, now seen corresponding path program 1 times [2024-11-11 22:11:04,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:04,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579078756] [2024-11-11 22:11:04,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:04,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:04,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:04,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-11 22:11:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:04,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 22:11:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:04,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 22:11:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:04,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 22:11:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:04,823 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 22:11:04,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:04,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579078756] [2024-11-11 22:11:04,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579078756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:04,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:04,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:04,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595874693] [2024-11-11 22:11:04,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:04,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:04,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:04,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:04,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:04,830 INFO L87 Difference]: Start difference. First operand 2459 states and 4481 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:07,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:07,804 INFO L93 Difference]: Finished difference Result 3374 states and 5955 transitions. [2024-11-11 22:11:07,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:11:07,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-11 22:11:07,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:07,819 INFO L225 Difference]: With dead ends: 3374 [2024-11-11 22:11:07,820 INFO L226 Difference]: Without dead ends: 3054 [2024-11-11 22:11:07,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:11:07,824 INFO L435 NwaCegarLoop]: 4460 mSDtfsCounter, 5244 mSDsluCounter, 17549 mSDsCounter, 0 mSdLazyCounter, 3167 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5261 SdHoareTripleChecker+Valid, 22009 SdHoareTripleChecker+Invalid, 3229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:07,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5261 Valid, 22009 Invalid, 3229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 3167 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-11 22:11:07,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2024-11-11 22:11:07,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 2797. [2024-11-11 22:11:07,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2736 states have (on average 1.7978801169590644) internal successors, (4919), 2740 states have internal predecessors, (4919), 45 states have call successors, (45), 12 states have call predecessors, (45), 14 states have return successors, (52), 46 states have call predecessors, (52), 45 states have call successors, (52) [2024-11-11 22:11:07,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 5016 transitions. [2024-11-11 22:11:07,929 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 5016 transitions. Word has length 156 [2024-11-11 22:11:07,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:07,930 INFO L471 AbstractCegarLoop]: Abstraction has 2797 states and 5016 transitions. [2024-11-11 22:11:07,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:07,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 5016 transitions. [2024-11-11 22:11:07,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-11 22:11:07,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:07,933 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:07,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:11:07,934 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:07,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:07,934 INFO L85 PathProgramCache]: Analyzing trace with hash 216050539, now seen corresponding path program 1 times [2024-11-11 22:11:07,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:07,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394731726] [2024-11-11 22:11:07,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:07,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:08,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:08,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-11 22:11:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:08,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 22:11:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:08,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 22:11:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:08,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 22:11:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:08,237 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 22:11:08,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:08,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394731726] [2024-11-11 22:11:08,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394731726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:08,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:08,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:08,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097449392] [2024-11-11 22:11:08,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:08,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:08,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:08,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:08,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:08,243 INFO L87 Difference]: Start difference. First operand 2797 states and 5016 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:11,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:11,321 INFO L93 Difference]: Finished difference Result 4542 states and 7800 transitions. [2024-11-11 22:11:11,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:11:11,322 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-11 22:11:11,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:11,336 INFO L225 Difference]: With dead ends: 4542 [2024-11-11 22:11:11,336 INFO L226 Difference]: Without dead ends: 3886 [2024-11-11 22:11:11,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:11:11,339 INFO L435 NwaCegarLoop]: 4406 mSDtfsCounter, 5285 mSDsluCounter, 17474 mSDsCounter, 0 mSdLazyCounter, 2868 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5302 SdHoareTripleChecker+Valid, 21880 SdHoareTripleChecker+Invalid, 2938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:11,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5302 Valid, 21880 Invalid, 2938 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 2868 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-11 22:11:11,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886 states. [2024-11-11 22:11:11,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3886 to 3421. [2024-11-11 22:11:11,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3421 states, 3308 states have (on average 1.7533252720677146) internal successors, (5800), 3314 states have internal predecessors, (5800), 83 states have call successors, (83), 24 states have call predecessors, (83), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2024-11-11 22:11:11,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 5983 transitions. [2024-11-11 22:11:11,473 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 5983 transitions. Word has length 156 [2024-11-11 22:11:11,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:11,474 INFO L471 AbstractCegarLoop]: Abstraction has 3421 states and 5983 transitions. [2024-11-11 22:11:11,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:11,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 5983 transitions. [2024-11-11 22:11:11,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-11 22:11:11,477 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:11,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:11,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:11:11,478 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:11,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:11,479 INFO L85 PathProgramCache]: Analyzing trace with hash 579517037, now seen corresponding path program 1 times [2024-11-11 22:11:11,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:11,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817237670] [2024-11-11 22:11:11,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:11,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:11,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:11,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-11 22:11:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:11,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 22:11:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:11,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 22:11:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:11,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 22:11:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:11,752 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 22:11:11,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:11,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817237670] [2024-11-11 22:11:11,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817237670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:11,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:11,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:11,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440617269] [2024-11-11 22:11:11,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:11,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:11,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:11,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:11,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:11,755 INFO L87 Difference]: Start difference. First operand 3421 states and 5983 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:14,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:14,691 INFO L93 Difference]: Finished difference Result 6828 states and 11399 transitions. [2024-11-11 22:11:14,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:11:14,692 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-11 22:11:14,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:14,712 INFO L225 Difference]: With dead ends: 6828 [2024-11-11 22:11:14,712 INFO L226 Difference]: Without dead ends: 5548 [2024-11-11 22:11:14,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:11:14,720 INFO L435 NwaCegarLoop]: 4458 mSDtfsCounter, 5244 mSDsluCounter, 17549 mSDsCounter, 0 mSdLazyCounter, 3162 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5261 SdHoareTripleChecker+Valid, 22007 SdHoareTripleChecker+Invalid, 3226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:14,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5261 Valid, 22007 Invalid, 3226 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 3162 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 22:11:14,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5548 states. [2024-11-11 22:11:14,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5548 to 4671. [2024-11-11 22:11:14,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4671 states, 4454 states have (on average 1.698248765154917) internal successors, (7564), 4464 states have internal predecessors, (7564), 159 states have call successors, (159), 48 states have call predecessors, (159), 56 states have return successors, (202), 166 states have call predecessors, (202), 159 states have call successors, (202) [2024-11-11 22:11:14,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4671 states to 4671 states and 7925 transitions. [2024-11-11 22:11:14,921 INFO L78 Accepts]: Start accepts. Automaton has 4671 states and 7925 transitions. Word has length 156 [2024-11-11 22:11:14,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:14,921 INFO L471 AbstractCegarLoop]: Abstraction has 4671 states and 7925 transitions. [2024-11-11 22:11:14,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:14,922 INFO L276 IsEmpty]: Start isEmpty. Operand 4671 states and 7925 transitions. [2024-11-11 22:11:14,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-11 22:11:14,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:14,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:14,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:11:14,925 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:14,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:14,926 INFO L85 PathProgramCache]: Analyzing trace with hash 868336427, now seen corresponding path program 1 times [2024-11-11 22:11:14,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:14,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973448705] [2024-11-11 22:11:14,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:14,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:15,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:15,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-11 22:11:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:15,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 22:11:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:15,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 22:11:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:15,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 22:11:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:15,156 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 22:11:15,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:15,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973448705] [2024-11-11 22:11:15,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973448705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:15,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:15,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:15,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656759637] [2024-11-11 22:11:15,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:15,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:15,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:15,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:15,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:15,163 INFO L87 Difference]: Start difference. First operand 4671 states and 7925 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:18,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:18,141 INFO L93 Difference]: Finished difference Result 11398 states and 18611 transitions. [2024-11-11 22:11:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:11:18,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-11 22:11:18,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:18,174 INFO L225 Difference]: With dead ends: 11398 [2024-11-11 22:11:18,174 INFO L226 Difference]: Without dead ends: 8868 [2024-11-11 22:11:18,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:11:18,186 INFO L435 NwaCegarLoop]: 4456 mSDtfsCounter, 5244 mSDsluCounter, 17549 mSDsCounter, 0 mSdLazyCounter, 3143 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5261 SdHoareTripleChecker+Valid, 22005 SdHoareTripleChecker+Invalid, 3207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:18,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5261 Valid, 22005 Invalid, 3207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3143 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-11 22:11:18,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8868 states. [2024-11-11 22:11:18,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8868 to 7177. [2024-11-11 22:11:18,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7177 states, 6752 states have (on average 1.643957345971564) internal successors, (11100), 6770 states have internal predecessors, (11100), 311 states have call successors, (311), 96 states have call predecessors, (311), 112 states have return successors, (424), 326 states have call predecessors, (424), 311 states have call successors, (424) [2024-11-11 22:11:18,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7177 states to 7177 states and 11835 transitions. [2024-11-11 22:11:18,446 INFO L78 Accepts]: Start accepts. Automaton has 7177 states and 11835 transitions. Word has length 156 [2024-11-11 22:11:18,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:18,447 INFO L471 AbstractCegarLoop]: Abstraction has 7177 states and 11835 transitions. [2024-11-11 22:11:18,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:18,447 INFO L276 IsEmpty]: Start isEmpty. Operand 7177 states and 11835 transitions. [2024-11-11 22:11:18,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-11 22:11:18,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:18,452 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:18,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:11:18,452 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:18,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:18,452 INFO L85 PathProgramCache]: Analyzing trace with hash 323463853, now seen corresponding path program 1 times [2024-11-11 22:11:18,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:18,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800391065] [2024-11-11 22:11:18,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:18,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:18,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:18,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-11 22:11:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:18,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 22:11:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:18,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 22:11:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:18,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 22:11:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:18,660 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 22:11:18,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:18,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800391065] [2024-11-11 22:11:18,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800391065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:18,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:18,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:18,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831554851] [2024-11-11 22:11:18,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:18,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:18,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:18,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:18,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:18,663 INFO L87 Difference]: Start difference. First operand 7177 states and 11835 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:21,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:21,756 INFO L93 Difference]: Finished difference Result 20536 states and 33091 transitions. [2024-11-11 22:11:21,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:11:21,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-11 22:11:21,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:21,801 INFO L225 Difference]: With dead ends: 20536 [2024-11-11 22:11:21,801 INFO L226 Difference]: Without dead ends: 15500 [2024-11-11 22:11:21,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:11:21,824 INFO L435 NwaCegarLoop]: 4459 mSDtfsCounter, 5244 mSDsluCounter, 17549 mSDsCounter, 0 mSdLazyCounter, 3149 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5261 SdHoareTripleChecker+Valid, 22008 SdHoareTripleChecker+Invalid, 3213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:21,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5261 Valid, 22008 Invalid, 3213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3149 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 22:11:21,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15500 states. [2024-11-11 22:11:22,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15500 to 12203. [2024-11-11 22:11:22,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12203 states, 11362 states have (on average 1.6011265622249604) internal successors, (18192), 11396 states have internal predecessors, (18192), 615 states have call successors, (615), 192 states have call predecessors, (615), 224 states have return successors, (922), 646 states have call predecessors, (922), 615 states have call successors, (922) [2024-11-11 22:11:22,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12203 states to 12203 states and 19729 transitions. [2024-11-11 22:11:22,482 INFO L78 Accepts]: Start accepts. Automaton has 12203 states and 19729 transitions. Word has length 156 [2024-11-11 22:11:22,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:22,483 INFO L471 AbstractCegarLoop]: Abstraction has 12203 states and 19729 transitions. [2024-11-11 22:11:22,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:22,484 INFO L276 IsEmpty]: Start isEmpty. Operand 12203 states and 19729 transitions. [2024-11-11 22:11:22,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-11 22:11:22,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:22,492 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:22,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:11:22,492 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:22,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:22,492 INFO L85 PathProgramCache]: Analyzing trace with hash 998623979, now seen corresponding path program 1 times [2024-11-11 22:11:22,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:22,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989261823] [2024-11-11 22:11:22,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:22,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:22,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:22,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-11 22:11:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:22,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 22:11:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:22,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 22:11:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:22,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 22:11:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:22,765 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 22:11:22,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:22,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989261823] [2024-11-11 22:11:22,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989261823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:22,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:22,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:22,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424350157] [2024-11-11 22:11:22,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:22,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:22,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:22,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:22,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:22,767 INFO L87 Difference]: Start difference. First operand 12203 states and 19729 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:26,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:26,426 INFO L93 Difference]: Finished difference Result 38810 states and 62239 transitions. [2024-11-11 22:11:26,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:11:26,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-11 22:11:26,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:26,504 INFO L225 Difference]: With dead ends: 38810 [2024-11-11 22:11:26,504 INFO L226 Difference]: Without dead ends: 28748 [2024-11-11 22:11:26,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:11:26,537 INFO L435 NwaCegarLoop]: 4458 mSDtfsCounter, 5244 mSDsluCounter, 17549 mSDsCounter, 0 mSdLazyCounter, 3135 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5261 SdHoareTripleChecker+Valid, 22007 SdHoareTripleChecker+Invalid, 3199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:26,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5261 Valid, 22007 Invalid, 3199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3135 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 22:11:26,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28748 states. [2024-11-11 22:11:27,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28748 to 22285. [2024-11-11 22:11:27,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22285 states, 20612 states have (on average 1.5728701727149232) internal successors, (32420), 20678 states have internal predecessors, (32420), 1223 states have call successors, (1223), 384 states have call predecessors, (1223), 448 states have return successors, (2080), 1286 states have call predecessors, (2080), 1223 states have call successors, (2080) [2024-11-11 22:11:27,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22285 states to 22285 states and 35723 transitions. [2024-11-11 22:11:27,367 INFO L78 Accepts]: Start accepts. Automaton has 22285 states and 35723 transitions. Word has length 156 [2024-11-11 22:11:27,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:27,368 INFO L471 AbstractCegarLoop]: Abstraction has 22285 states and 35723 transitions. [2024-11-11 22:11:27,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:27,369 INFO L276 IsEmpty]: Start isEmpty. Operand 22285 states and 35723 transitions. [2024-11-11 22:11:27,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-11 22:11:27,382 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:27,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:27,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:11:27,383 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:27,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:27,383 INFO L85 PathProgramCache]: Analyzing trace with hash 50572013, now seen corresponding path program 1 times [2024-11-11 22:11:27,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:27,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606386018] [2024-11-11 22:11:27,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:27,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:27,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:27,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-11 22:11:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:27,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 22:11:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:27,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 22:11:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:27,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 22:11:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:27,606 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 22:11:27,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:27,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606386018] [2024-11-11 22:11:27,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606386018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:27,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:27,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:27,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489168834] [2024-11-11 22:11:27,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:27,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:27,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:27,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:27,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:27,607 INFO L87 Difference]: Start difference. First operand 22285 states and 35723 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:29,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:29,716 INFO L93 Difference]: Finished difference Result 49349 states and 79788 transitions. [2024-11-11 22:11:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:11:29,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-11 22:11:29,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:29,807 INFO L225 Difference]: With dead ends: 49349 [2024-11-11 22:11:29,808 INFO L226 Difference]: Without dead ends: 29203 [2024-11-11 22:11:29,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:11:29,858 INFO L435 NwaCegarLoop]: 4227 mSDtfsCounter, 5082 mSDsluCounter, 12542 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5100 SdHoareTripleChecker+Valid, 16769 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:29,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5100 Valid, 16769 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:11:29,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29203 states. [2024-11-11 22:11:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29203 to 22285. [2024-11-11 22:11:30,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22285 states, 20612 states have (on average 1.5697166699010285) internal successors, (32355), 20678 states have internal predecessors, (32355), 1223 states have call successors, (1223), 384 states have call predecessors, (1223), 448 states have return successors, (2080), 1286 states have call predecessors, (2080), 1223 states have call successors, (2080) [2024-11-11 22:11:30,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22285 states to 22285 states and 35658 transitions. [2024-11-11 22:11:30,949 INFO L78 Accepts]: Start accepts. Automaton has 22285 states and 35658 transitions. Word has length 156 [2024-11-11 22:11:30,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:30,950 INFO L471 AbstractCegarLoop]: Abstraction has 22285 states and 35658 transitions. [2024-11-11 22:11:30,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:30,950 INFO L276 IsEmpty]: Start isEmpty. Operand 22285 states and 35658 transitions. [2024-11-11 22:11:30,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-11 22:11:30,963 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:30,964 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:30,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:11:30,964 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:30,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:30,964 INFO L85 PathProgramCache]: Analyzing trace with hash -534199637, now seen corresponding path program 1 times [2024-11-11 22:11:30,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:30,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501690173] [2024-11-11 22:11:30,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:30,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:31,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:31,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-11 22:11:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:31,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 22:11:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:31,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 22:11:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:31,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 22:11:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:31,256 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 22:11:31,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:31,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501690173] [2024-11-11 22:11:31,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501690173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:31,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:31,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:31,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568237640] [2024-11-11 22:11:31,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:31,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:31,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:31,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:31,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:31,258 INFO L87 Difference]: Start difference. First operand 22285 states and 35658 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:35,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:35,666 INFO L93 Difference]: Finished difference Result 75229 states and 120559 transitions. [2024-11-11 22:11:35,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:11:35,667 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-11 22:11:35,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:35,845 INFO L225 Difference]: With dead ends: 75229 [2024-11-11 22:11:35,846 INFO L226 Difference]: Without dead ends: 55085 [2024-11-11 22:11:35,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:11:35,912 INFO L435 NwaCegarLoop]: 4457 mSDtfsCounter, 5276 mSDsluCounter, 17549 mSDsCounter, 0 mSdLazyCounter, 3010 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5293 SdHoareTripleChecker+Valid, 22006 SdHoareTripleChecker+Invalid, 3074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:35,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5293 Valid, 22006 Invalid, 3074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3010 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 22:11:35,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55085 states. [2024-11-11 22:11:37,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55085 to 42638. [2024-11-11 22:11:37,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42638 states, 39301 states have (on average 1.5528866949950384) internal successors, (61030), 39431 states have internal predecessors, (61030), 2439 states have call successors, (2439), 768 states have call predecessors, (2439), 896 states have return successors, (4882), 2566 states have call predecessors, (4882), 2439 states have call successors, (4882) [2024-11-11 22:11:37,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42638 states to 42638 states and 68351 transitions. [2024-11-11 22:11:37,878 INFO L78 Accepts]: Start accepts. Automaton has 42638 states and 68351 transitions. Word has length 156 [2024-11-11 22:11:37,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:37,879 INFO L471 AbstractCegarLoop]: Abstraction has 42638 states and 68351 transitions. [2024-11-11 22:11:37,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:37,879 INFO L276 IsEmpty]: Start isEmpty. Operand 42638 states and 68351 transitions. [2024-11-11 22:11:38,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-11 22:11:38,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:38,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:38,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:11:38,152 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:38,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:38,152 INFO L85 PathProgramCache]: Analyzing trace with hash -963857943, now seen corresponding path program 1 times [2024-11-11 22:11:38,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:38,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668398263] [2024-11-11 22:11:38,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:38,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:38,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:38,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-11 22:11:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:38,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 22:11:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:38,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 22:11:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:38,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 22:11:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:38,365 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 22:11:38,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:38,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668398263] [2024-11-11 22:11:38,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668398263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:38,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:38,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:38,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403078474] [2024-11-11 22:11:38,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:38,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:38,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:38,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:38,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:38,367 INFO L87 Difference]: Start difference. First operand 42638 states and 68351 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:45,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:45,328 INFO L93 Difference]: Finished difference Result 148320 states and 239808 transitions. [2024-11-11 22:11:45,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:11:45,329 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-11 22:11:45,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:45,780 INFO L225 Difference]: With dead ends: 148320 [2024-11-11 22:11:45,781 INFO L226 Difference]: Without dead ends: 107823 [2024-11-11 22:11:45,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:11:45,917 INFO L435 NwaCegarLoop]: 4407 mSDtfsCounter, 5302 mSDsluCounter, 17474 mSDsCounter, 0 mSdLazyCounter, 2768 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5319 SdHoareTripleChecker+Valid, 21881 SdHoareTripleChecker+Invalid, 2838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:45,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5319 Valid, 21881 Invalid, 2838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2768 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 22:11:45,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107823 states. [2024-11-11 22:11:50,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107823 to 83472. [2024-11-11 22:11:50,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83472 states, 76807 states have (on average 1.5437655422031846) internal successors, (118572), 77065 states have internal predecessors, (118572), 4871 states have call successors, (4871), 1536 states have call predecessors, (4871), 1792 states have return successors, (11944), 5126 states have call predecessors, (11944), 4871 states have call successors, (11944) [2024-11-11 22:11:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83472 states to 83472 states and 135387 transitions. [2024-11-11 22:11:50,831 INFO L78 Accepts]: Start accepts. Automaton has 83472 states and 135387 transitions. Word has length 156 [2024-11-11 22:11:50,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:50,832 INFO L471 AbstractCegarLoop]: Abstraction has 83472 states and 135387 transitions. [2024-11-11 22:11:50,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 22:11:50,832 INFO L276 IsEmpty]: Start isEmpty. Operand 83472 states and 135387 transitions. [2024-11-11 22:11:50,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-11 22:11:50,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:50,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:50,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:11:50,869 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:50,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:50,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1670454549, now seen corresponding path program 1 times [2024-11-11 22:11:50,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:50,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327499977] [2024-11-11 22:11:50,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:50,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:50,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:51,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-11 22:11:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:51,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 22:11:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:51,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 22:11:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:51,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 22:11:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:51,138 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 22:11:51,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:51,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327499977] [2024-11-11 22:11:51,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327499977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:51,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:51,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:51,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633875639] [2024-11-11 22:11:51,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:51,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:51,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:51,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:51,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:51,140 INFO L87 Difference]: Start difference. First operand 83472 states and 135387 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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)