./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.14.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 78a96934dff25285973ef889167a345947d7e73ab8a2ec405d96bd61e690530f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:14:47,622 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:14:47,679 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:14:47,682 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:14:47,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:14:47,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:14:47,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:14:47,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:14:47,698 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:14:47,698 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:14:47,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:14:47,699 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:14:47,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:14:47,699 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:14:47,700 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:14:47,700 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:14:47,700 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:14:47,700 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:14:47,701 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:14:47,701 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:14:47,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:14:47,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:14:47,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:14:47,706 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:14:47,706 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:14:47,706 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:14:47,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:14:47,707 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:14:47,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:14:47,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:14:47,707 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:14:47,707 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:14:47,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:14:47,708 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:14:47,708 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:14:47,708 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:14:47,708 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:14:47,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:14:47,709 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:14:47,709 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:14:47,709 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:14:47,710 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:14:47,710 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78a96934dff25285973ef889167a345947d7e73ab8a2ec405d96bd61e690530f [2024-10-11 03:14:47,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:14:47,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:14:47,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:14:47,897 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:14:47,898 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:14:47,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.14.cil.c [2024-10-11 03:14:49,292 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:14:49,521 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:14:49,522 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.14.cil.c [2024-10-11 03:14:49,538 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fd21bf4e2/2839fc965efe4841a30f8958a0bf0e44/FLAGf759891ef [2024-10-11 03:14:49,850 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fd21bf4e2/2839fc965efe4841a30f8958a0bf0e44 [2024-10-11 03:14:49,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:14:49,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:14:49,854 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:14:49,854 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:14:49,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:14:49,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:14:49" (1/1) ... [2024-10-11 03:14:49,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60dfb5bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:49, skipping insertion in model container [2024-10-11 03:14:49,863 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:14:49" (1/1) ... [2024-10-11 03:14:49,901 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:14:50,021 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.14.cil.c[669,682] [2024-10-11 03:14:50,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:14:50,160 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:14:50,169 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.14.cil.c[669,682] [2024-10-11 03:14:50,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:14:50,226 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:14:50,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:50 WrapperNode [2024-10-11 03:14:50,227 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:14:50,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:14:50,227 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:14:50,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:14:50,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:50" (1/1) ... [2024-10-11 03:14:50,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:50" (1/1) ... [2024-10-11 03:14:50,288 INFO L138 Inliner]: procedures = 52, calls = 68, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 883 [2024-10-11 03:14:50,289 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:14:50,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:14:50,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:14:50,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:14:50,298 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:50" (1/1) ... [2024-10-11 03:14:50,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:50" (1/1) ... [2024-10-11 03:14:50,301 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:50" (1/1) ... [2024-10-11 03:14:50,320 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]. [2024-10-11 03:14:50,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:50" (1/1) ... [2024-10-11 03:14:50,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:50" (1/1) ... [2024-10-11 03:14:50,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:50" (1/1) ... [2024-10-11 03:14:50,338 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:50" (1/1) ... [2024-10-11 03:14:50,340 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:50" (1/1) ... [2024-10-11 03:14:50,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:50" (1/1) ... [2024-10-11 03:14:50,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:14:50,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:14:50,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:14:50,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:14:50,347 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:50" (1/1) ... [2024-10-11 03:14:50,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:14:50,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:14:50,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:14:50,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:14:50,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:14:50,403 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-11 03:14:50,403 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-11 03:14:50,403 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-11 03:14:50,403 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-11 03:14:50,403 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-11 03:14:50,403 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-11 03:14:50,403 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-11 03:14:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-11 03:14:50,404 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-11 03:14:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-11 03:14:50,404 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-11 03:14:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-11 03:14:50,404 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-11 03:14:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-11 03:14:50,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:14:50,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:14:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:14:50,487 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:14:50,488 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:14:51,288 INFO L? ?]: Removed 101 outVars from TransFormulas that were not future-live. [2024-10-11 03:14:51,288 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:14:51,360 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:14:51,360 INFO L314 CfgBuilder]: Removed 15 assume(true) statements. [2024-10-11 03:14:51,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:14:51 BoogieIcfgContainer [2024-10-11 03:14:51,364 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:14:51,366 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:14:51,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:14:51,368 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:14:51,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:14:49" (1/3) ... [2024-10-11 03:14:51,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7b2e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:14:51, skipping insertion in model container [2024-10-11 03:14:51,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:14:50" (2/3) ... [2024-10-11 03:14:51,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7b2e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:14:51, skipping insertion in model container [2024-10-11 03:14:51,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:14:51" (3/3) ... [2024-10-11 03:14:51,372 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.14.cil.c [2024-10-11 03:14:51,386 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:14:51,387 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:14:51,470 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:14:51,477 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;@522f5134, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:14:51,477 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:14:51,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 354 states, 317 states have (on average 1.7381703470031546) internal successors, (551), 321 states have internal predecessors, (551), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-11 03:14:51,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-11 03:14:51,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:51,497 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:51,497 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:51,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:51,502 INFO L85 PathProgramCache]: Analyzing trace with hash 505075948, now seen corresponding path program 1 times [2024-10-11 03:14:51,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:51,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2585984] [2024-10-11 03:14:51,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:51,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:51,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:51,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:14:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:51,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:14:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:52,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 03:14:52,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:52,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:14:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:52,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:52,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:52,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2585984] [2024-10-11 03:14:52,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2585984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:52,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:52,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:14:52,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804530680] [2024-10-11 03:14:52,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:52,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:14:52,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:52,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:14:52,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:14:52,100 INFO L87 Difference]: Start difference. First operand has 354 states, 317 states have (on average 1.7381703470031546) internal successors, (551), 321 states have internal predecessors, (551), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:14:54,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:54,069 INFO L93 Difference]: Finished difference Result 829 states and 1433 transitions. [2024-10-11 03:14:54,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:14:54,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-11 03:14:54,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:54,088 INFO L225 Difference]: With dead ends: 829 [2024-10-11 03:14:54,089 INFO L226 Difference]: Without dead ends: 481 [2024-10-11 03:14:54,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:14:54,099 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 985 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:54,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 642 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 03:14:54,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-10-11 03:14:54,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 351. [2024-10-11 03:14:54,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 316 states have (on average 1.6360759493670887) internal successors, (517), 318 states have internal predecessors, (517), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 03:14:54,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 571 transitions. [2024-10-11 03:14:54,178 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 571 transitions. Word has length 161 [2024-10-11 03:14:54,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:54,179 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 571 transitions. [2024-10-11 03:14:54,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:14:54,179 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 571 transitions. [2024-10-11 03:14:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-11 03:14:54,184 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:54,184 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:54,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:14:54,184 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:54,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:54,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1389257938, now seen corresponding path program 1 times [2024-10-11 03:14:54,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:54,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164686351] [2024-10-11 03:14:54,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:54,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:54,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:54,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:14:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:54,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:14:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:54,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 03:14:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:54,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:14:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:54,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:54,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164686351] [2024-10-11 03:14:54,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164686351] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:54,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:54,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:14:54,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137746990] [2024-10-11 03:14:54,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:54,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:14:54,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:54,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:14:54,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:14:54,421 INFO L87 Difference]: Start difference. First operand 351 states and 571 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:14:55,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:55,987 INFO L93 Difference]: Finished difference Result 816 states and 1346 transitions. [2024-10-11 03:14:55,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:14:55,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-11 03:14:55,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:55,992 INFO L225 Difference]: With dead ends: 816 [2024-10-11 03:14:55,992 INFO L226 Difference]: Without dead ends: 481 [2024-10-11 03:14:55,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:14:55,994 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 974 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:55,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 637 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 03:14:55,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-10-11 03:14:56,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 351. [2024-10-11 03:14:56,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 316 states have (on average 1.6329113924050633) internal successors, (516), 318 states have internal predecessors, (516), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 03:14:56,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 570 transitions. [2024-10-11 03:14:56,015 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 570 transitions. Word has length 161 [2024-10-11 03:14:56,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:56,015 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 570 transitions. [2024-10-11 03:14:56,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:14:56,016 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 570 transitions. [2024-10-11 03:14:56,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-11 03:14:56,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:56,017 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:56,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:14:56,017 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:56,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:56,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1727545488, now seen corresponding path program 1 times [2024-10-11 03:14:56,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:56,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512372226] [2024-10-11 03:14:56,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:56,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:56,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:56,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:14:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:56,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:14:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:56,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 03:14:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:56,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:14:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:56,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:56,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:56,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512372226] [2024-10-11 03:14:56,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512372226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:56,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:56,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:14:56,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396942257] [2024-10-11 03:14:56,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:56,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:14:56,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:56,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:14:56,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:14:56,307 INFO L87 Difference]: Start difference. First operand 351 states and 570 transitions. Second operand has 6 states, 6 states have (on average 25.0) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:14:59,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:14:59,048 INFO L93 Difference]: Finished difference Result 1296 states and 2152 transitions. [2024-10-11 03:14:59,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 03:14:59,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-11 03:14:59,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:14:59,053 INFO L225 Difference]: With dead ends: 1296 [2024-10-11 03:14:59,053 INFO L226 Difference]: Without dead ends: 963 [2024-10-11 03:14:59,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:14:59,054 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 1488 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 2298 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:14:59,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1077 Invalid, 2414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2298 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-11 03:14:59,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-10-11 03:14:59,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 702. [2024-10-11 03:14:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 639 states have (on average 1.6431924882629108) internal successors, (1050), 642 states have internal predecessors, (1050), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-10-11 03:14:59,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1149 transitions. [2024-10-11 03:14:59,120 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1149 transitions. Word has length 161 [2024-10-11 03:14:59,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:14:59,120 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 1149 transitions. [2024-10-11 03:14:59,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:14:59,121 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1149 transitions. [2024-10-11 03:14:59,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-11 03:14:59,125 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:14:59,125 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:14:59,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:14:59,126 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:14:59,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:14:59,126 INFO L85 PathProgramCache]: Analyzing trace with hash 362053424, now seen corresponding path program 1 times [2024-10-11 03:14:59,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:14:59,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159392303] [2024-10-11 03:14:59,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:14:59,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:14:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:59,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:14:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:59,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:14:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:59,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:14:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:59,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 03:14:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:59,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:14:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:14:59,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:14:59,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:14:59,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159392303] [2024-10-11 03:14:59,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159392303] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:14:59,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:14:59,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:14:59,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891891730] [2024-10-11 03:14:59,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:14:59,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:14:59,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:14:59,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:14:59,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:14:59,437 INFO L87 Difference]: Start difference. First operand 702 states and 1149 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:03,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:15:03,065 INFO L93 Difference]: Finished difference Result 2147 states and 3570 transitions. [2024-10-11 03:15:03,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:15:03,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-11 03:15:03,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:15:03,071 INFO L225 Difference]: With dead ends: 2147 [2024-10-11 03:15:03,072 INFO L226 Difference]: Without dead ends: 1463 [2024-10-11 03:15:03,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:15:03,074 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 1523 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 3735 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 2053 SdHoareTripleChecker+Invalid, 3800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-11 03:15:03,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1542 Valid, 2053 Invalid, 3800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3735 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-11 03:15:03,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2024-10-11 03:15:03,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1026. [2024-10-11 03:15:03,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 935 states have (on average 1.6363636363636365) internal successors, (1530), 939 states have internal predecessors, (1530), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-10-11 03:15:03,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1673 transitions. [2024-10-11 03:15:03,123 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1673 transitions. Word has length 161 [2024-10-11 03:15:03,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:15:03,123 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1673 transitions. [2024-10-11 03:15:03,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:03,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1673 transitions. [2024-10-11 03:15:03,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-11 03:15:03,124 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:15:03,125 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:15:03,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:15:03,125 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:15:03,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:15:03,126 INFO L85 PathProgramCache]: Analyzing trace with hash 772663790, now seen corresponding path program 1 times [2024-10-11 03:15:03,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:15:03,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937245796] [2024-10-11 03:15:03,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:15:03,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:15:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:03,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:15:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:03,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:15:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:03,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:15:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:03,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 03:15:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:03,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:15:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:03,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:15:03,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:15:03,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937245796] [2024-10-11 03:15:03,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937245796] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:15:03,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:15:03,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:15:03,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184606833] [2024-10-11 03:15:03,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:15:03,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:15:03,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:15:03,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:15:03,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:15:03,372 INFO L87 Difference]: Start difference. First operand 1026 states and 1673 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:06,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:15:06,521 INFO L93 Difference]: Finished difference Result 3394 states and 5634 transitions. [2024-10-11 03:15:06,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:15:06,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-11 03:15:06,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:15:06,532 INFO L225 Difference]: With dead ends: 3394 [2024-10-11 03:15:06,533 INFO L226 Difference]: Without dead ends: 2386 [2024-10-11 03:15:06,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:15:06,536 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 1635 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 3094 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 1330 SdHoareTripleChecker+Invalid, 3201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:15:06,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 1330 Invalid, 3201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 3094 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-11 03:15:06,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2024-10-11 03:15:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 1675. [2024-10-11 03:15:06,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1675 states, 1528 states have (on average 1.6302356020942408) internal successors, (2491), 1534 states have internal predecessors, (2491), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-11 03:15:06,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 2726 transitions. [2024-10-11 03:15:06,662 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 2726 transitions. Word has length 161 [2024-10-11 03:15:06,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:15:06,662 INFO L471 AbstractCegarLoop]: Abstraction has 1675 states and 2726 transitions. [2024-10-11 03:15:06,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:06,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 2726 transitions. [2024-10-11 03:15:06,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-11 03:15:06,664 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:15:06,664 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:15:06,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:15:06,665 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:15:06,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:15:06,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1015206032, now seen corresponding path program 1 times [2024-10-11 03:15:06,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:15:06,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779321636] [2024-10-11 03:15:06,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:15:06,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:15:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:06,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:15:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:06,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:15:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:06,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:15:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:06,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 03:15:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:06,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:15:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:06,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:15:06,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:15:06,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779321636] [2024-10-11 03:15:06,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779321636] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:15:06,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:15:06,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:15:06,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815174480] [2024-10-11 03:15:06,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:15:06,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:15:06,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:15:06,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:15:06,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:15:06,917 INFO L87 Difference]: Start difference. First operand 1675 states and 2726 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:10,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:15:10,250 INFO L93 Difference]: Finished difference Result 5783 states and 9567 transitions. [2024-10-11 03:15:10,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:15:10,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-11 03:15:10,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:15:10,277 INFO L225 Difference]: With dead ends: 5783 [2024-10-11 03:15:10,277 INFO L226 Difference]: Without dead ends: 4126 [2024-10-11 03:15:10,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:15:10,285 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1521 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 3724 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1540 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 3791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:15:10,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1540 Valid, 2051 Invalid, 3791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3724 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-11 03:15:10,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4126 states. [2024-10-11 03:15:10,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4126 to 2974. [2024-10-11 03:15:10,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 2715 states have (on average 1.625414364640884) internal successors, (4413), 2725 states have internal predecessors, (4413), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-10-11 03:15:10,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 4838 transitions. [2024-10-11 03:15:10,455 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 4838 transitions. Word has length 161 [2024-10-11 03:15:10,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:15:10,455 INFO L471 AbstractCegarLoop]: Abstraction has 2974 states and 4838 transitions. [2024-10-11 03:15:10,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:10,456 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 4838 transitions. [2024-10-11 03:15:10,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-11 03:15:10,457 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:15:10,457 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:15:10,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:15:10,458 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:15:10,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:15:10,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1143878062, now seen corresponding path program 1 times [2024-10-11 03:15:10,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:15:10,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175367341] [2024-10-11 03:15:10,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:15:10,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:15:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:10,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:15:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:10,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:15:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:10,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:15:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:10,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 03:15:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:10,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:15:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:10,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:15:10,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:15:10,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175367341] [2024-10-11 03:15:10,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175367341] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:15:10,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:15:10,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:15:10,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29171709] [2024-10-11 03:15:10,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:15:10,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:15:10,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:15:10,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:15:10,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:15:10,686 INFO L87 Difference]: Start difference. First operand 2974 states and 4838 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:13,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:15:13,892 INFO L93 Difference]: Finished difference Result 10553 states and 17437 transitions. [2024-10-11 03:15:13,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:15:13,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-11 03:15:13,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:15:13,917 INFO L225 Difference]: With dead ends: 10553 [2024-10-11 03:15:13,918 INFO L226 Difference]: Without dead ends: 7597 [2024-10-11 03:15:13,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:15:13,928 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1517 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 3696 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 3763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:15:13,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 2051 Invalid, 3763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3696 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-11 03:15:13,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7597 states. [2024-10-11 03:15:14,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7597 to 5586. [2024-10-11 03:15:14,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5586 states, 5103 states have (on average 1.6227709190672153) internal successors, (8281), 5121 states have internal predecessors, (8281), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-10-11 03:15:14,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5586 states to 5586 states and 9104 transitions. [2024-10-11 03:15:14,254 INFO L78 Accepts]: Start accepts. Automaton has 5586 states and 9104 transitions. Word has length 161 [2024-10-11 03:15:14,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:15:14,254 INFO L471 AbstractCegarLoop]: Abstraction has 5586 states and 9104 transitions. [2024-10-11 03:15:14,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:14,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5586 states and 9104 transitions. [2024-10-11 03:15:14,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-11 03:15:14,258 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:15:14,258 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:15:14,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:15:14,259 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:15:14,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:15:14,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1561766764, now seen corresponding path program 1 times [2024-10-11 03:15:14,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:15:14,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032617561] [2024-10-11 03:15:14,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:15:14,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:15:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:14,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:15:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:14,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:15:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:14,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:15:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:14,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 03:15:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:14,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:15:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:14,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:15:14,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:15:14,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032617561] [2024-10-11 03:15:14,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032617561] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:15:14,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:15:14,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:15:14,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201818947] [2024-10-11 03:15:14,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:15:14,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:15:14,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:15:14,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:15:14,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:15:14,486 INFO L87 Difference]: Start difference. First operand 5586 states and 9104 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:18,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:15:18,112 INFO L93 Difference]: Finished difference Result 20111 states and 33269 transitions. [2024-10-11 03:15:18,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:15:18,112 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-11 03:15:18,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:15:18,183 INFO L225 Difference]: With dead ends: 20111 [2024-10-11 03:15:18,183 INFO L226 Difference]: Without dead ends: 14543 [2024-10-11 03:15:18,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:15:18,199 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1516 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 3683 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 3750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:15:18,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 2051 Invalid, 3750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3683 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-11 03:15:18,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14543 states. [2024-10-11 03:15:18,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14543 to 10823. [2024-10-11 03:15:18,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10823 states, 9892 states have (on average 1.6210068742418116) internal successors, (16035), 9926 states have internal predecessors, (16035), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-10-11 03:15:18,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10823 states to 10823 states and 17708 transitions. [2024-10-11 03:15:18,760 INFO L78 Accepts]: Start accepts. Automaton has 10823 states and 17708 transitions. Word has length 161 [2024-10-11 03:15:18,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:15:18,761 INFO L471 AbstractCegarLoop]: Abstraction has 10823 states and 17708 transitions. [2024-10-11 03:15:18,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:18,761 INFO L276 IsEmpty]: Start isEmpty. Operand 10823 states and 17708 transitions. [2024-10-11 03:15:18,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-11 03:15:18,767 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:15:18,767 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:15:18,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:15:18,768 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:15:18,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:15:18,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1334246930, now seen corresponding path program 1 times [2024-10-11 03:15:18,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:15:18,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141909323] [2024-10-11 03:15:18,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:15:18,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:15:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:18,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:15:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:18,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:15:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:19,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:15:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:19,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 03:15:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:19,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:15:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:19,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:15:19,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:15:19,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141909323] [2024-10-11 03:15:19,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141909323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:15:19,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:15:19,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:15:19,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536736027] [2024-10-11 03:15:19,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:15:19,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:15:19,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:15:19,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:15:19,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:15:19,106 INFO L87 Difference]: Start difference. First operand 10823 states and 17708 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:23,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:15:23,616 INFO L93 Difference]: Finished difference Result 39226 states and 65123 transitions. [2024-10-11 03:15:23,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:15:23,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-11 03:15:23,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:15:23,713 INFO L225 Difference]: With dead ends: 39226 [2024-10-11 03:15:23,713 INFO L226 Difference]: Without dead ends: 28421 [2024-10-11 03:15:23,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:15:23,752 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1515 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 3670 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 3737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:15:23,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 2051 Invalid, 3737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3670 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-11 03:15:23,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28421 states. [2024-10-11 03:15:25,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28421 to 21328. [2024-10-11 03:15:25,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21328 states, 19501 states have (on average 1.6198656479154916) internal successors, (31589), 19567 states have internal predecessors, (31589), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-10-11 03:15:25,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21328 states to 21328 states and 35124 transitions. [2024-10-11 03:15:25,173 INFO L78 Accepts]: Start accepts. Automaton has 21328 states and 35124 transitions. Word has length 161 [2024-10-11 03:15:25,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:15:25,173 INFO L471 AbstractCegarLoop]: Abstraction has 21328 states and 35124 transitions. [2024-10-11 03:15:25,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:25,173 INFO L276 IsEmpty]: Start isEmpty. Operand 21328 states and 35124 transitions. [2024-10-11 03:15:25,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-11 03:15:25,189 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:15:25,189 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:15:25,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:15:25,189 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:15:25,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:15:25,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1343279916, now seen corresponding path program 1 times [2024-10-11 03:15:25,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:15:25,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644606253] [2024-10-11 03:15:25,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:15:25,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:15:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:25,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:15:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:25,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:15:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:25,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:15:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:25,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 03:15:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:25,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:15:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:25,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:15:25,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:15:25,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644606253] [2024-10-11 03:15:25,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644606253] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:15:25,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:15:25,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:15:25,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429793814] [2024-10-11 03:15:25,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:15:25,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:15:25,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:15:25,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:15:25,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:15:25,425 INFO L87 Difference]: Start difference. First operand 21328 states and 35124 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:31,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:15:31,484 INFO L93 Difference]: Finished difference Result 77457 states and 129433 transitions. [2024-10-11 03:15:31,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:15:31,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-11 03:15:31,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:15:31,658 INFO L225 Difference]: With dead ends: 77457 [2024-10-11 03:15:31,658 INFO L226 Difference]: Without dead ends: 56147 [2024-10-11 03:15:31,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:15:31,711 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1514 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 3657 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 3724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-11 03:15:31,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1533 Valid, 2051 Invalid, 3724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3657 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-11 03:15:31,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56147 states. [2024-10-11 03:15:34,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56147 to 42401. [2024-10-11 03:15:34,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42401 states, 38782 states have (on average 1.6190758599350215) internal successors, (62791), 38912 states have internal predecessors, (62791), 2716 states have call successors, (2716), 775 states have call predecessors, (2716), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2024-10-11 03:15:34,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42401 states to 42401 states and 70536 transitions. [2024-10-11 03:15:34,482 INFO L78 Accepts]: Start accepts. Automaton has 42401 states and 70536 transitions. Word has length 161 [2024-10-11 03:15:34,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:15:34,482 INFO L471 AbstractCegarLoop]: Abstraction has 42401 states and 70536 transitions. [2024-10-11 03:15:34,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:34,483 INFO L276 IsEmpty]: Start isEmpty. Operand 42401 states and 70536 transitions. [2024-10-11 03:15:34,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-11 03:15:34,500 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:15:34,501 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:15:34,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 03:15:34,501 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:15:34,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:15:34,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1706746414, now seen corresponding path program 1 times [2024-10-11 03:15:34,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:15:34,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598274795] [2024-10-11 03:15:34,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:15:34,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:15:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:34,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:15:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:34,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:15:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:34,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:15:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:34,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 03:15:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:34,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:15:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:34,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:15:34,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:15:34,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598274795] [2024-10-11 03:15:34,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598274795] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:15:34,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:15:34,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:15:34,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197068997] [2024-10-11 03:15:34,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:15:34,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:15:34,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:15:34,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:15:34,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:15:34,749 INFO L87 Difference]: Start difference. First operand 42401 states and 70536 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:42,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:15:42,701 INFO L93 Difference]: Finished difference Result 153920 states and 259903 transitions. [2024-10-11 03:15:42,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:15:42,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-11 03:15:42,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:15:43,438 INFO L225 Difference]: With dead ends: 153920 [2024-10-11 03:15:43,439 INFO L226 Difference]: Without dead ends: 111537 [2024-10-11 03:15:43,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:15:43,582 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1513 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 3644 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 3711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:15:43,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 2051 Invalid, 3711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3644 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-11 03:15:43,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111537 states. [2024-10-11 03:15:48,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111537 to 84674. [2024-10-11 03:15:48,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84674 states, 77471 states have (on average 1.6184765912405932) internal successors, (125385), 77729 states have internal predecessors, (125385), 5404 states have call successors, (5404), 1543 states have call predecessors, (5404), 1798 states have return successors, (12219), 5657 states have call predecessors, (12219), 5402 states have call successors, (12219) [2024-10-11 03:15:48,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84674 states to 84674 states and 143008 transitions. [2024-10-11 03:15:48,595 INFO L78 Accepts]: Start accepts. Automaton has 84674 states and 143008 transitions. Word has length 161 [2024-10-11 03:15:48,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:15:48,596 INFO L471 AbstractCegarLoop]: Abstraction has 84674 states and 143008 transitions. [2024-10-11 03:15:48,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:15:48,596 INFO L276 IsEmpty]: Start isEmpty. Operand 84674 states and 143008 transitions. [2024-10-11 03:15:48,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-11 03:15:48,657 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:15:48,657 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:15:48,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:15:48,657 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:15:48,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:15:48,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1995565804, now seen corresponding path program 1 times [2024-10-11 03:15:48,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:15:48,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106838626] [2024-10-11 03:15:48,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:15:48,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:15:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:48,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:15:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:48,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 03:15:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:48,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:15:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:48,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 03:15:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:48,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 03:15:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:15:48,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:15:48,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:15:48,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106838626] [2024-10-11 03:15:48,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106838626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:15:48,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:15:48,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:15:48,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539379178] [2024-10-11 03:15:48,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:15:48,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:15:48,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:15:48,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:15:48,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:15:48,905 INFO L87 Difference]: Start difference. First operand 84674 states and 143008 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)