./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 1d054f79132e175b09d8c50472a4c24ca52f401c76e1d0704dd5609a369827e2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 05:13:44,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 05:13:44,257 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 05:13:44,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 05:13:44,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 05:13:44,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 05:13:44,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 05:13:44,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 05:13:44,306 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 05:13:44,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 05:13:44,307 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 05:13:44,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 05:13:44,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 05:13:44,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 05:13:44,310 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 05:13:44,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 05:13:44,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 05:13:44,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 05:13:44,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 05:13:44,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 05:13:44,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 05:13:44,314 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 05:13:44,314 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 05:13:44,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 05:13:44,315 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 05:13:44,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 05:13:44,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 05:13:44,316 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 05:13:44,316 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 05:13:44,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:13:44,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 05:13:44,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 05:13:44,318 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 05:13:44,318 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 05:13:44,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 05:13:44,318 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 05:13:44,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 05:13:44,319 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 05:13:44,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 05:13:44,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d054f79132e175b09d8c50472a4c24ca52f401c76e1d0704dd5609a369827e2 [2024-10-11 05:13:44,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 05:13:44,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 05:13:44,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 05:13:44,657 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 05:13:44,658 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 05:13:44,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c [2024-10-11 05:13:46,047 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 05:13:46,337 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 05:13:46,338 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c [2024-10-11 05:13:46,352 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fe9654055/07601707898a460485607bb95893e41a/FLAGd90ed08d7 [2024-10-11 05:13:46,644 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fe9654055/07601707898a460485607bb95893e41a [2024-10-11 05:13:46,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 05:13:46,648 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 05:13:46,649 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 05:13:46,650 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 05:13:46,655 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 05:13:46,656 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:13:46" (1/1) ... [2024-10-11 05:13:46,657 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dbc2e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:46, skipping insertion in model container [2024-10-11 05:13:46,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:13:46" (1/1) ... [2024-10-11 05:13:46,713 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 05:13:46,921 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/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c[1268,1281] [2024-10-11 05:13:47,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:13:47,192 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 05:13:47,201 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/hardware-verification-array/btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c[1268,1281] [2024-10-11 05:13:47,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:13:47,357 INFO L204 MainTranslator]: Completed translation [2024-10-11 05:13:47,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:47 WrapperNode [2024-10-11 05:13:47,357 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 05:13:47,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 05:13:47,359 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 05:13:47,359 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 05:13:47,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:47" (1/1) ... [2024-10-11 05:13:47,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:47" (1/1) ... [2024-10-11 05:13:47,691 INFO L138 Inliner]: procedures = 18, calls = 41, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2377 [2024-10-11 05:13:47,692 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 05:13:47,693 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 05:13:47,693 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 05:13:47,693 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 05:13:47,705 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:47" (1/1) ... [2024-10-11 05:13:47,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:47" (1/1) ... [2024-10-11 05:13:47,780 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:47" (1/1) ... [2024-10-11 05:13:47,893 INFO L175 MemorySlicer]: Split 20 memory accesses to 3 slices as follows [2, 9, 9]. 45 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 4, 4]. [2024-10-11 05:13:47,894 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:47" (1/1) ... [2024-10-11 05:13:47,894 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:47" (1/1) ... [2024-10-11 05:13:48,035 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:47" (1/1) ... [2024-10-11 05:13:48,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:47" (1/1) ... [2024-10-11 05:13:48,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:47" (1/1) ... [2024-10-11 05:13:48,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:47" (1/1) ... [2024-10-11 05:13:48,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 05:13:48,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 05:13:48,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 05:13:48,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 05:13:48,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:47" (1/1) ... [2024-10-11 05:13:48,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:13:48,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:13:48,236 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 05:13:48,239 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 05:13:48,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 05:13:48,339 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 05:13:48,339 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 05:13:48,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 05:13:48,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 05:13:48,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 05:13:48,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 05:13:48,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 05:13:48,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 05:13:48,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 05:13:48,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 05:13:48,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 05:13:48,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 05:13:48,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 05:13:48,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 05:13:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 05:13:48,726 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 05:13:48,729 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 05:13:51,341 INFO L? ?]: Removed 1283 outVars from TransFormulas that were not future-live. [2024-10-11 05:13:51,342 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 05:13:51,406 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 05:13:51,407 INFO L314 CfgBuilder]: Removed 7 assume(true) statements. [2024-10-11 05:13:51,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:13:51 BoogieIcfgContainer [2024-10-11 05:13:51,407 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 05:13:51,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 05:13:51,409 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 05:13:51,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 05:13:51,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:13:46" (1/3) ... [2024-10-11 05:13:51,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61926104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:13:51, skipping insertion in model container [2024-10-11 05:13:51,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:13:47" (2/3) ... [2024-10-11 05:13:51,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61926104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:13:51, skipping insertion in model container [2024-10-11 05:13:51,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:13:51" (3/3) ... [2024-10-11 05:13:51,417 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_arbitrated_fifos_n2d8w8.c [2024-10-11 05:13:51,433 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 05:13:51,434 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 05:13:51,544 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 05:13:51,552 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;@7cc01517, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 05:13:51,553 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 05:13:51,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 743 states, 735 states have (on average 1.5034013605442176) internal successors, (1105), 736 states have internal predecessors, (1105), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-11 05:13:51,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-10-11 05:13:51,581 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:13:51,582 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:51,582 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:13:51,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:13:51,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1037496957, now seen corresponding path program 1 times [2024-10-11 05:13:51,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:13:51,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347237719] [2024-10-11 05:13:51,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:13:51,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:13:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:52,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 05:13:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:52,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 05:13:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:52,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 05:13:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:52,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 05:13:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:52,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 05:13:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:52,105 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 05:13:52,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:13:52,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347237719] [2024-10-11 05:13:52,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347237719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:13:52,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:13:52,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 05:13:52,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106610175] [2024-10-11 05:13:52,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:13:52,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 05:13:52,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:13:52,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 05:13:52,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 05:13:52,145 INFO L87 Difference]: Start difference. First operand has 743 states, 735 states have (on average 1.5034013605442176) internal successors, (1105), 736 states have internal predecessors, (1105), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 109.0) internal successors, (218), 2 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:13:52,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:13:52,256 INFO L93 Difference]: Finished difference Result 1479 states and 2225 transitions. [2024-10-11 05:13:52,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 05:13:52,258 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 109.0) internal successors, (218), 2 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 240 [2024-10-11 05:13:52,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:13:52,279 INFO L225 Difference]: With dead ends: 1479 [2024-10-11 05:13:52,279 INFO L226 Difference]: Without dead ends: 742 [2024-10-11 05:13:52,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 05:13:52,292 INFO L432 NwaCegarLoop]: 1099 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:13:52,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1099 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:13:52,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-10-11 05:13:52,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2024-10-11 05:13:52,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 735 states have (on average 1.491156462585034) internal successors, (1096), 735 states have internal predecessors, (1096), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-11 05:13:52,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1106 transitions. [2024-10-11 05:13:52,370 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1106 transitions. Word has length 240 [2024-10-11 05:13:52,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:13:52,371 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 1106 transitions. [2024-10-11 05:13:52,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 109.0) internal successors, (218), 2 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:13:52,372 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1106 transitions. [2024-10-11 05:13:52,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-10-11 05:13:52,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:13:52,377 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:52,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 05:13:52,378 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:13:52,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:13:52,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1066652070, now seen corresponding path program 1 times [2024-10-11 05:13:52,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:13:52,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984270335] [2024-10-11 05:13:52,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:13:52,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:13:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:53,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 05:13:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:53,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 05:13:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:53,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 05:13:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:53,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 05:13:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:53,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 05:13:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:53,061 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 05:13:53,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:13:53,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984270335] [2024-10-11 05:13:53,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984270335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:13:53,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:13:53,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 05:13:53,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38855172] [2024-10-11 05:13:53,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:13:53,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 05:13:53,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:13:53,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 05:13:53,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 05:13:53,070 INFO L87 Difference]: Start difference. First operand 742 states and 1106 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:13:53,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:13:53,123 INFO L93 Difference]: Finished difference Result 1483 states and 2211 transitions. [2024-10-11 05:13:53,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 05:13:53,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 240 [2024-10-11 05:13:53,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:13:53,128 INFO L225 Difference]: With dead ends: 1483 [2024-10-11 05:13:53,128 INFO L226 Difference]: Without dead ends: 747 [2024-10-11 05:13:53,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 05:13:53,133 INFO L432 NwaCegarLoop]: 1098 mSDtfsCounter, 6 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:13:53,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2194 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:13:53,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-10-11 05:13:53,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 743. [2024-10-11 05:13:53,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 736 states have (on average 1.4904891304347827) internal successors, (1097), 736 states have internal predecessors, (1097), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-11 05:13:53,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1107 transitions. [2024-10-11 05:13:53,161 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1107 transitions. Word has length 240 [2024-10-11 05:13:53,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:13:53,163 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 1107 transitions. [2024-10-11 05:13:53,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:13:53,164 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1107 transitions. [2024-10-11 05:13:53,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-10-11 05:13:53,168 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:13:53,169 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:53,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 05:13:53,170 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:13:53,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:13:53,171 INFO L85 PathProgramCache]: Analyzing trace with hash 122243403, now seen corresponding path program 1 times [2024-10-11 05:13:53,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:13:53,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859470536] [2024-10-11 05:13:53,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:13:53,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:13:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:53,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 05:13:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:53,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 05:13:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:53,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 05:13:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:53,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 05:13:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:53,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 05:13:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:53,853 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 05:13:53,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:13:53,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859470536] [2024-10-11 05:13:53,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859470536] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:13:53,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189031902] [2024-10-11 05:13:53,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:13:53,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:13:53,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:13:53,856 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:13:53,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 05:13:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:54,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 05:13:54,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:13:54,400 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 05:13:54,401 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 05:13:54,461 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-11 05:13:54,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189031902] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 05:13:54,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 05:13:54,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2024-10-11 05:13:54,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368724061] [2024-10-11 05:13:54,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:13:54,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 05:13:54,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:13:54,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 05:13:54,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:13:54,465 INFO L87 Difference]: Start difference. First operand 743 states and 1107 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:13:54,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:13:54,507 INFO L93 Difference]: Finished difference Result 1458 states and 2173 transitions. [2024-10-11 05:13:54,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 05:13:54,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 243 [2024-10-11 05:13:54,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:13:54,511 INFO L225 Difference]: With dead ends: 1458 [2024-10-11 05:13:54,511 INFO L226 Difference]: Without dead ends: 744 [2024-10-11 05:13:54,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:13:54,516 INFO L432 NwaCegarLoop]: 1098 mSDtfsCounter, 6 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2188 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:13:54,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2188 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:13:54,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-10-11 05:13:54,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2024-10-11 05:13:54,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 737 states have (on average 1.4898236092265944) internal successors, (1098), 737 states have internal predecessors, (1098), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-11 05:13:54,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1108 transitions. [2024-10-11 05:13:54,537 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1108 transitions. Word has length 243 [2024-10-11 05:13:54,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:13:54,537 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1108 transitions. [2024-10-11 05:13:54,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:13:54,538 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1108 transitions. [2024-10-11 05:13:54,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-10-11 05:13:54,541 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:13:54,541 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:54,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 05:13:54,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:13:54,743 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:13:54,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:13:54,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1972531103, now seen corresponding path program 1 times [2024-10-11 05:13:54,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:13:54,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375688718] [2024-10-11 05:13:54,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:13:54,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:13:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:55,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 05:13:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:55,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 05:13:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:55,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 05:13:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:55,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 05:13:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:55,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 05:13:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:55,282 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-11 05:13:55,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:13:55,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375688718] [2024-10-11 05:13:55,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375688718] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:13:55,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615616228] [2024-10-11 05:13:55,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:13:55,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:13:55,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:13:55,288 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:13:55,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 05:13:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:55,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 05:13:55,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:13:55,874 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-11 05:13:55,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 05:13:56,786 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-11 05:13:56,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615616228] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 05:13:56,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 05:13:56,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 8] total 12 [2024-10-11 05:13:56,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479395975] [2024-10-11 05:13:56,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 05:13:56,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 05:13:56,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:13:56,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 05:13:56,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-10-11 05:13:56,793 INFO L87 Difference]: Start difference. First operand 744 states and 1108 transitions. Second operand has 12 states, 12 states have (on average 30.166666666666668) internal successors, (362), 12 states have internal predecessors, (362), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-11 05:13:58,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:13:58,831 INFO L93 Difference]: Finished difference Result 2101 states and 3132 transitions. [2024-10-11 05:13:58,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 05:13:58,832 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 30.166666666666668) internal successors, (362), 12 states have internal predecessors, (362), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 246 [2024-10-11 05:13:58,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:13:58,838 INFO L225 Difference]: With dead ends: 2101 [2024-10-11 05:13:58,838 INFO L226 Difference]: Without dead ends: 1364 [2024-10-11 05:13:58,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-10-11 05:13:58,841 INFO L432 NwaCegarLoop]: 1312 mSDtfsCounter, 2980 mSDsluCounter, 7277 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 8589 SdHoareTripleChecker+Invalid, 3004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 05:13:58,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2985 Valid, 8589 Invalid, 3004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 05:13:58,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2024-10-11 05:13:58,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 977. [2024-10-11 05:13:58,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 965 states have (on average 1.4870466321243523) internal successors, (1435), 965 states have internal predecessors, (1435), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:13:58,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1455 transitions. [2024-10-11 05:13:58,871 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1455 transitions. Word has length 246 [2024-10-11 05:13:58,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:13:58,872 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1455 transitions. [2024-10-11 05:13:58,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 30.166666666666668) internal successors, (362), 12 states have internal predecessors, (362), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-11 05:13:58,872 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1455 transitions. [2024-10-11 05:13:58,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-10-11 05:13:58,876 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:13:58,876 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:58,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 05:13:59,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:13:59,077 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:13:59,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:13:59,078 INFO L85 PathProgramCache]: Analyzing trace with hash 780910908, now seen corresponding path program 1 times [2024-10-11 05:13:59,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:13:59,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886527513] [2024-10-11 05:13:59,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:13:59,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:13:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:59,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 05:13:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:59,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 05:13:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:59,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:13:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:59,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 05:13:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:59,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 05:13:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:13:59,538 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-11 05:13:59,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:13:59,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886527513] [2024-10-11 05:13:59,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886527513] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:13:59,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215103835] [2024-10-11 05:13:59,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:13:59,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:13:59,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:13:59,541 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:13:59,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 05:14:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:00,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 05:14:00,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:14:00,050 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 05:14:00,050 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 05:14:00,101 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-11 05:14:00,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215103835] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 05:14:00,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 05:14:00,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 9 [2024-10-11 05:14:00,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629589559] [2024-10-11 05:14:00,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 05:14:00,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 05:14:00,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:00,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 05:14:00,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 05:14:00,106 INFO L87 Difference]: Start difference. First operand 977 states and 1455 transitions. Second operand has 9 states, 9 states have (on average 28.444444444444443) internal successors, (256), 9 states have internal predecessors, (256), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-11 05:14:00,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:00,213 INFO L93 Difference]: Finished difference Result 1981 states and 2955 transitions. [2024-10-11 05:14:00,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 05:14:00,214 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 28.444444444444443) internal successors, (256), 9 states have internal predecessors, (256), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 250 [2024-10-11 05:14:00,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:00,218 INFO L225 Difference]: With dead ends: 1981 [2024-10-11 05:14:00,218 INFO L226 Difference]: Without dead ends: 1016 [2024-10-11 05:14:00,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-11 05:14:00,222 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 66 mSDsluCounter, 3313 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 4420 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:00,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 4420 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 05:14:00,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-10-11 05:14:00,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1012. [2024-10-11 05:14:00,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1000 states have (on average 1.484) internal successors, (1484), 1000 states have internal predecessors, (1484), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:00,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1504 transitions. [2024-10-11 05:14:00,248 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1504 transitions. Word has length 250 [2024-10-11 05:14:00,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:00,248 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1504 transitions. [2024-10-11 05:14:00,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 28.444444444444443) internal successors, (256), 9 states have internal predecessors, (256), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-11 05:14:00,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1504 transitions. [2024-10-11 05:14:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-10-11 05:14:00,252 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:00,252 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:00,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 05:14:00,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:00,457 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:00,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:00,458 INFO L85 PathProgramCache]: Analyzing trace with hash -741536887, now seen corresponding path program 2 times [2024-10-11 05:14:00,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:00,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663107613] [2024-10-11 05:14:00,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:00,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:00,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 05:14:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:00,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 05:14:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:00,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:00,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 05:14:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:00,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 05:14:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:00,962 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-11 05:14:00,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:00,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663107613] [2024-10-11 05:14:00,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663107613] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:00,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693165653] [2024-10-11 05:14:00,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 05:14:00,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:00,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:14:00,967 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:14:00,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 05:14:01,424 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 05:14:01,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 05:14:01,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 05:14:01,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:14:01,882 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-10-11 05:14:01,882 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 05:14:01,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693165653] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:01,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 05:14:01,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-10-11 05:14:01,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138920377] [2024-10-11 05:14:01,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:01,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:14:01,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:01,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:14:01,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 05:14:01,885 INFO L87 Difference]: Start difference. First operand 1012 states and 1504 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:14:02,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:02,140 INFO L93 Difference]: Finished difference Result 1667 states and 2479 transitions. [2024-10-11 05:14:02,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:14:02,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 262 [2024-10-11 05:14:02,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:02,147 INFO L225 Difference]: With dead ends: 1667 [2024-10-11 05:14:02,148 INFO L226 Difference]: Without dead ends: 1012 [2024-10-11 05:14:02,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 05:14:02,150 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 965 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:02,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1998 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 05:14:02,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-10-11 05:14:02,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2024-10-11 05:14:02,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1000 states have (on average 1.48) internal successors, (1480), 1000 states have internal predecessors, (1480), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:02,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1500 transitions. [2024-10-11 05:14:02,187 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1500 transitions. Word has length 262 [2024-10-11 05:14:02,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:02,191 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1500 transitions. [2024-10-11 05:14:02,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:14:02,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1500 transitions. [2024-10-11 05:14:02,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-10-11 05:14:02,198 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:02,198 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:02,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 05:14:02,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-11 05:14:02,400 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:02,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:02,401 INFO L85 PathProgramCache]: Analyzing trace with hash 914770022, now seen corresponding path program 1 times [2024-10-11 05:14:02,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:02,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466530276] [2024-10-11 05:14:02,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:02,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:02,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 05:14:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:02,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 05:14:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:02,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:02,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 05:14:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:02,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 05:14:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:02,963 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-11 05:14:02,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:02,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466530276] [2024-10-11 05:14:02,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466530276] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:02,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994850238] [2024-10-11 05:14:02,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:02,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:02,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:14:02,967 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:14:02,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 05:14:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:03,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 05:14:03,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:14:03,769 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-10-11 05:14:03,769 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 05:14:03,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994850238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:03,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 05:14:03,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-10-11 05:14:03,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688281154] [2024-10-11 05:14:03,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:03,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:14:03,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:03,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:14:03,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-11 05:14:03,772 INFO L87 Difference]: Start difference. First operand 1012 states and 1500 transitions. Second operand has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:14:04,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:04,042 INFO L93 Difference]: Finished difference Result 1661 states and 2465 transitions. [2024-10-11 05:14:04,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 05:14:04,043 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 264 [2024-10-11 05:14:04,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:04,047 INFO L225 Difference]: With dead ends: 1661 [2024-10-11 05:14:04,047 INFO L226 Difference]: Without dead ends: 1012 [2024-10-11 05:14:04,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-10-11 05:14:04,049 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 1074 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:04,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 2998 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 05:14:04,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-10-11 05:14:04,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2024-10-11 05:14:04,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1000 states have (on average 1.479) internal successors, (1479), 1000 states have internal predecessors, (1479), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:04,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1499 transitions. [2024-10-11 05:14:04,073 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1499 transitions. Word has length 264 [2024-10-11 05:14:04,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:04,074 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1499 transitions. [2024-10-11 05:14:04,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:14:04,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1499 transitions. [2024-10-11 05:14:04,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-10-11 05:14:04,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:04,078 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:04,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 05:14:04,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:04,279 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:04,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:04,280 INFO L85 PathProgramCache]: Analyzing trace with hash -678833417, now seen corresponding path program 1 times [2024-10-11 05:14:04,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:04,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773442508] [2024-10-11 05:14:04,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:04,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:04,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 05:14:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:04,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 05:14:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:04,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:04,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 05:14:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:04,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 05:14:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:04,752 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-11 05:14:04,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:04,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773442508] [2024-10-11 05:14:04,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773442508] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:04,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473594712] [2024-10-11 05:14:04,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:04,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:04,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:14:04,755 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:14:04,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 05:14:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:05,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 05:14:05,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:14:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-11 05:14:05,259 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 05:14:05,417 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 10 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 05:14:05,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473594712] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 05:14:05,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 05:14:05,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 10] total 15 [2024-10-11 05:14:05,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699277038] [2024-10-11 05:14:05,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 05:14:05,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 05:14:05,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:05,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 05:14:05,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-11 05:14:05,421 INFO L87 Difference]: Start difference. First operand 1012 states and 1499 transitions. Second operand has 15 states, 15 states have (on average 17.4) internal successors, (261), 15 states have internal predecessors, (261), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-11 05:14:05,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:05,633 INFO L93 Difference]: Finished difference Result 2032 states and 3014 transitions. [2024-10-11 05:14:05,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 05:14:05,634 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 17.4) internal successors, (261), 15 states have internal predecessors, (261), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 265 [2024-10-11 05:14:05,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:05,638 INFO L225 Difference]: With dead ends: 2032 [2024-10-11 05:14:05,638 INFO L226 Difference]: Without dead ends: 1037 [2024-10-11 05:14:05,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-10-11 05:14:05,642 INFO L432 NwaCegarLoop]: 1110 mSDtfsCounter, 84 mSDsluCounter, 9944 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 11054 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:05,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 11054 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 05:14:05,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-10-11 05:14:05,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1037. [2024-10-11 05:14:05,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 1025 states have (on average 1.4770731707317073) internal successors, (1514), 1025 states have internal predecessors, (1514), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:05,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1534 transitions. [2024-10-11 05:14:05,669 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1534 transitions. Word has length 265 [2024-10-11 05:14:05,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:05,669 INFO L471 AbstractCegarLoop]: Abstraction has 1037 states and 1534 transitions. [2024-10-11 05:14:05,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 17.4) internal successors, (261), 15 states have internal predecessors, (261), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-11 05:14:05,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1534 transitions. [2024-10-11 05:14:05,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-10-11 05:14:05,675 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:05,675 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:05,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 05:14:05,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-11 05:14:05,877 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:05,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:05,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1481509554, now seen corresponding path program 2 times [2024-10-11 05:14:05,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:05,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170543335] [2024-10-11 05:14:05,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:05,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:06,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 05:14:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:06,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 05:14:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:06,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 05:14:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:06,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 05:14:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:06,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-11 05:14:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:06,372 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-10-11 05:14:06,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:06,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170543335] [2024-10-11 05:14:06,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170543335] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:06,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275843159] [2024-10-11 05:14:06,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 05:14:06,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:06,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:14:06,376 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:14:06,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 05:14:06,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 05:14:06,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 05:14:06,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 05:14:06,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:14:07,177 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-10-11 05:14:07,178 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 05:14:07,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275843159] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:07,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 05:14:07,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-10-11 05:14:07,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644519167] [2024-10-11 05:14:07,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:07,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:14:07,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:07,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:14:07,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-11 05:14:07,184 INFO L87 Difference]: Start difference. First operand 1037 states and 1534 transitions. Second operand has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:14:07,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:07,471 INFO L93 Difference]: Finished difference Result 1686 states and 2498 transitions. [2024-10-11 05:14:07,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 05:14:07,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 280 [2024-10-11 05:14:07,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:07,477 INFO L225 Difference]: With dead ends: 1686 [2024-10-11 05:14:07,477 INFO L226 Difference]: Without dead ends: 1037 [2024-10-11 05:14:07,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-11 05:14:07,479 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 1072 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 2990 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:07,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 2990 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 05:14:07,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-10-11 05:14:07,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1037. [2024-10-11 05:14:07,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 1025 states have (on average 1.4760975609756097) internal successors, (1513), 1025 states have internal predecessors, (1513), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:07,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1533 transitions. [2024-10-11 05:14:07,507 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1533 transitions. Word has length 280 [2024-10-11 05:14:07,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:07,508 INFO L471 AbstractCegarLoop]: Abstraction has 1037 states and 1533 transitions. [2024-10-11 05:14:07,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:14:07,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1533 transitions. [2024-10-11 05:14:07,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-10-11 05:14:07,512 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:07,512 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:07,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 05:14:07,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:07,717 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:07,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:07,718 INFO L85 PathProgramCache]: Analyzing trace with hash 968773384, now seen corresponding path program 1 times [2024-10-11 05:14:07,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:07,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100000456] [2024-10-11 05:14:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:07,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:08,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 05:14:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:08,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 05:14:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:08,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 05:14:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:08,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 05:14:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:08,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-11 05:14:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:08,193 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-10-11 05:14:08,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:08,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100000456] [2024-10-11 05:14:08,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100000456] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:08,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092333010] [2024-10-11 05:14:08,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:08,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:08,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:14:08,195 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:14:08,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 05:14:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:08,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-11 05:14:08,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:14:08,788 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-10-11 05:14:08,788 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 05:14:08,914 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-10-11 05:14:08,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092333010] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 05:14:08,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 05:14:08,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 7] total 18 [2024-10-11 05:14:08,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023633354] [2024-10-11 05:14:08,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 05:14:08,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 05:14:08,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:08,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 05:14:08,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-10-11 05:14:08,918 INFO L87 Difference]: Start difference. First operand 1037 states and 1533 transitions. Second operand has 18 states, 18 states have (on average 15.055555555555555) internal successors, (271), 18 states have internal predecessors, (271), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-11 05:14:09,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:09,143 INFO L93 Difference]: Finished difference Result 2012 states and 2985 transitions. [2024-10-11 05:14:09,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 05:14:09,144 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.055555555555555) internal successors, (271), 18 states have internal predecessors, (271), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 281 [2024-10-11 05:14:09,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:09,148 INFO L225 Difference]: With dead ends: 2012 [2024-10-11 05:14:09,148 INFO L226 Difference]: Without dead ends: 1077 [2024-10-11 05:14:09,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-10-11 05:14:09,151 INFO L432 NwaCegarLoop]: 1133 mSDtfsCounter, 112 mSDsluCounter, 12370 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 13503 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:09,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 13503 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 05:14:09,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2024-10-11 05:14:09,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1077. [2024-10-11 05:14:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1065 states have (on average 1.4732394366197183) internal successors, (1569), 1065 states have internal predecessors, (1569), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:09,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1589 transitions. [2024-10-11 05:14:09,178 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1589 transitions. Word has length 281 [2024-10-11 05:14:09,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:09,178 INFO L471 AbstractCegarLoop]: Abstraction has 1077 states and 1589 transitions. [2024-10-11 05:14:09,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.055555555555555) internal successors, (271), 18 states have internal predecessors, (271), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-11 05:14:09,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1589 transitions. [2024-10-11 05:14:09,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-10-11 05:14:09,182 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:09,182 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:09,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 05:14:09,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 05:14:09,384 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:09,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:09,385 INFO L85 PathProgramCache]: Analyzing trace with hash 878825864, now seen corresponding path program 2 times [2024-10-11 05:14:09,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:09,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263366350] [2024-10-11 05:14:09,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:09,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:10,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 05:14:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:10,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-11 05:14:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:10,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 05:14:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:10,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 05:14:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:10,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 05:14:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:10,177 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-11 05:14:10,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:10,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263366350] [2024-10-11 05:14:10,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263366350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:10,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:14:10,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:14:10,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277432164] [2024-10-11 05:14:10,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:10,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:14:10,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:10,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:14:10,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:14:10,180 INFO L87 Difference]: Start difference. First operand 1077 states and 1589 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:14:10,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:10,228 INFO L93 Difference]: Finished difference Result 1081 states and 1593 transitions. [2024-10-11 05:14:10,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:14:10,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 293 [2024-10-11 05:14:10,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:10,235 INFO L225 Difference]: With dead ends: 1081 [2024-10-11 05:14:10,236 INFO L226 Difference]: Without dead ends: 1079 [2024-10-11 05:14:10,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:14:10,238 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 0 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:10,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3274 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:14:10,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-10-11 05:14:10,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1079. [2024-10-11 05:14:10,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1067 states have (on average 1.472352389878163) internal successors, (1571), 1067 states have internal predecessors, (1571), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:10,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1591 transitions. [2024-10-11 05:14:10,263 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1591 transitions. Word has length 293 [2024-10-11 05:14:10,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:10,264 INFO L471 AbstractCegarLoop]: Abstraction has 1079 states and 1591 transitions. [2024-10-11 05:14:10,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:14:10,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1591 transitions. [2024-10-11 05:14:10,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-10-11 05:14:10,267 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:10,267 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:10,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 05:14:10,268 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:10,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:10,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1475494546, now seen corresponding path program 1 times [2024-10-11 05:14:10,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:10,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088914354] [2024-10-11 05:14:10,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:10,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:10,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 05:14:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:10,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-11 05:14:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:10,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 05:14:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:10,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 05:14:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:10,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 05:14:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-11 05:14:10,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:10,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088914354] [2024-10-11 05:14:10,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088914354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:10,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:14:10,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:14:10,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662476455] [2024-10-11 05:14:10,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:10,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:14:10,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:10,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:14:10,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:14:10,789 INFO L87 Difference]: Start difference. First operand 1079 states and 1591 transitions. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:14:10,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:10,837 INFO L93 Difference]: Finished difference Result 1732 states and 2559 transitions. [2024-10-11 05:14:10,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:14:10,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 294 [2024-10-11 05:14:10,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:10,844 INFO L225 Difference]: With dead ends: 1732 [2024-10-11 05:14:10,844 INFO L226 Difference]: Without dead ends: 1081 [2024-10-11 05:14:10,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:14:10,846 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 0 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:10,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3271 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:14:10,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-10-11 05:14:10,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1081. [2024-10-11 05:14:10,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1069 states have (on average 1.471468662301216) internal successors, (1573), 1069 states have internal predecessors, (1573), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:10,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1593 transitions. [2024-10-11 05:14:10,876 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1593 transitions. Word has length 294 [2024-10-11 05:14:10,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:10,877 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1593 transitions. [2024-10-11 05:14:10,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:14:10,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1593 transitions. [2024-10-11 05:14:10,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-10-11 05:14:10,880 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:10,881 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:10,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 05:14:10,881 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:10,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:10,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1692693409, now seen corresponding path program 1 times [2024-10-11 05:14:10,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:10,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286862254] [2024-10-11 05:14:10,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:10,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:12,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 05:14:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:12,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-11 05:14:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:12,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 05:14:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:12,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 05:14:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:12,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 05:14:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:12,161 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-11 05:14:12,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:12,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286862254] [2024-10-11 05:14:12,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286862254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:12,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:14:12,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 05:14:12,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437625064] [2024-10-11 05:14:12,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:12,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:14:12,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:12,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:14:12,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:14:12,165 INFO L87 Difference]: Start difference. First operand 1081 states and 1593 transitions. Second operand has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:14:13,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:13,039 INFO L93 Difference]: Finished difference Result 2277 states and 3365 transitions. [2024-10-11 05:14:13,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 05:14:13,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 295 [2024-10-11 05:14:13,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:13,046 INFO L225 Difference]: With dead ends: 2277 [2024-10-11 05:14:13,046 INFO L226 Difference]: Without dead ends: 1624 [2024-10-11 05:14:13,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 05:14:13,049 INFO L432 NwaCegarLoop]: 795 mSDtfsCounter, 1747 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1752 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:13,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1752 Valid, 3118 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 05:14:13,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2024-10-11 05:14:13,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 975. [2024-10-11 05:14:13,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 963 states have (on average 1.4724818276220146) internal successors, (1418), 963 states have internal predecessors, (1418), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:13,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1438 transitions. [2024-10-11 05:14:13,076 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1438 transitions. Word has length 295 [2024-10-11 05:14:13,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:13,076 INFO L471 AbstractCegarLoop]: Abstraction has 975 states and 1438 transitions. [2024-10-11 05:14:13,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:14:13,077 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1438 transitions. [2024-10-11 05:14:13,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-10-11 05:14:13,079 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:13,079 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:13,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 05:14:13,079 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:13,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:13,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1522777034, now seen corresponding path program 1 times [2024-10-11 05:14:13,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:13,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847354283] [2024-10-11 05:14:13,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:13,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:14,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:14,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:14,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-11 05:14:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:14,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 05:14:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:14,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-11 05:14:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-11 05:14:14,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:14,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847354283] [2024-10-11 05:14:14,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847354283] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:14,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:14:14,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 05:14:14,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953992032] [2024-10-11 05:14:14,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:14,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 05:14:14,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:14,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 05:14:14,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 05:14:14,751 INFO L87 Difference]: Start difference. First operand 975 states and 1438 transitions. Second operand has 8 states, 8 states have (on average 29.0) internal successors, (232), 8 states have internal predecessors, (232), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:14,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:14,961 INFO L93 Difference]: Finished difference Result 1741 states and 2571 transitions. [2024-10-11 05:14:14,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 05:14:14,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.0) internal successors, (232), 8 states have internal predecessors, (232), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 296 [2024-10-11 05:14:14,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:14,967 INFO L225 Difference]: With dead ends: 1741 [2024-10-11 05:14:14,967 INFO L226 Difference]: Without dead ends: 999 [2024-10-11 05:14:14,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 05:14:14,969 INFO L432 NwaCegarLoop]: 1074 mSDtfsCounter, 1024 mSDsluCounter, 5351 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 6425 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:14,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 6425 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 05:14:14,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-10-11 05:14:14,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 993. [2024-10-11 05:14:14,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 981 states have (on average 1.471967380224261) internal successors, (1444), 981 states have internal predecessors, (1444), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:14,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1464 transitions. [2024-10-11 05:14:14,994 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1464 transitions. Word has length 296 [2024-10-11 05:14:14,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:14,994 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1464 transitions. [2024-10-11 05:14:14,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.0) internal successors, (232), 8 states have internal predecessors, (232), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:14,994 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1464 transitions. [2024-10-11 05:14:14,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-10-11 05:14:14,996 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:14,996 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:14,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 05:14:14,997 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:14,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:14,997 INFO L85 PathProgramCache]: Analyzing trace with hash -169604803, now seen corresponding path program 1 times [2024-10-11 05:14:14,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:14,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288683054] [2024-10-11 05:14:14,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:14,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:15,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:15,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:15,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 05:14:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:15,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 05:14:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:15,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 05:14:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-11 05:14:15,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:15,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288683054] [2024-10-11 05:14:15,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288683054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:15,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:14:15,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 05:14:15,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414946889] [2024-10-11 05:14:15,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:15,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:14:15,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:15,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:14:15,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:14:15,551 INFO L87 Difference]: Start difference. First operand 993 states and 1464 transitions. Second operand has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:16,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:16,161 INFO L93 Difference]: Finished difference Result 2363 states and 3491 transitions. [2024-10-11 05:14:16,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 05:14:16,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 297 [2024-10-11 05:14:16,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:16,166 INFO L225 Difference]: With dead ends: 2363 [2024-10-11 05:14:16,166 INFO L226 Difference]: Without dead ends: 1001 [2024-10-11 05:14:16,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 05:14:16,168 INFO L432 NwaCegarLoop]: 1765 mSDtfsCounter, 724 mSDsluCounter, 6087 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 7852 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:16,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 7852 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 05:14:16,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-10-11 05:14:16,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 997. [2024-10-11 05:14:16,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 985 states have (on average 1.4700507614213199) internal successors, (1448), 985 states have internal predecessors, (1448), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:16,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1468 transitions. [2024-10-11 05:14:16,196 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1468 transitions. Word has length 297 [2024-10-11 05:14:16,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:16,196 INFO L471 AbstractCegarLoop]: Abstraction has 997 states and 1468 transitions. [2024-10-11 05:14:16,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:16,197 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1468 transitions. [2024-10-11 05:14:16,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-10-11 05:14:16,198 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:16,199 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:16,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 05:14:16,199 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:16,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:16,199 INFO L85 PathProgramCache]: Analyzing trace with hash -780200302, now seen corresponding path program 1 times [2024-10-11 05:14:16,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:16,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406206512] [2024-10-11 05:14:16,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:16,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:16,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:16,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:16,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 05:14:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:16,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 05:14:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:16,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 05:14:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:16,812 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-11 05:14:16,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:16,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406206512] [2024-10-11 05:14:16,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406206512] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:16,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:14:16,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:14:16,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854942618] [2024-10-11 05:14:16,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:16,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:14:16,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:16,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:14:16,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:14:16,816 INFO L87 Difference]: Start difference. First operand 997 states and 1468 transitions. Second operand has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:16,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:16,871 INFO L93 Difference]: Finished difference Result 1770 states and 2609 transitions. [2024-10-11 05:14:16,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:14:16,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 297 [2024-10-11 05:14:16,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:16,877 INFO L225 Difference]: With dead ends: 1770 [2024-10-11 05:14:16,877 INFO L226 Difference]: Without dead ends: 1001 [2024-10-11 05:14:16,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:14:16,879 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 0 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:16,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3271 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:14:16,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-10-11 05:14:16,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1001. [2024-10-11 05:14:16,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 989 states have (on average 1.468149646107179) internal successors, (1452), 989 states have internal predecessors, (1452), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:16,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1472 transitions. [2024-10-11 05:14:16,906 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1472 transitions. Word has length 297 [2024-10-11 05:14:16,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:16,907 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1472 transitions. [2024-10-11 05:14:16,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:16,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1472 transitions. [2024-10-11 05:14:16,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-10-11 05:14:16,909 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:16,909 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:16,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 05:14:16,910 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:16,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:16,910 INFO L85 PathProgramCache]: Analyzing trace with hash 2133002831, now seen corresponding path program 1 times [2024-10-11 05:14:16,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:16,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432493599] [2024-10-11 05:14:16,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:16,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:18,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:18,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:18,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 05:14:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:18,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 05:14:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:18,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 05:14:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:18,233 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-11 05:14:18,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:18,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432493599] [2024-10-11 05:14:18,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432493599] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:18,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:14:18,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 05:14:18,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725006028] [2024-10-11 05:14:18,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:18,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 05:14:18,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:18,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 05:14:18,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-11 05:14:18,237 INFO L87 Difference]: Start difference. First operand 1001 states and 1472 transitions. Second operand has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:18,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:18,400 INFO L93 Difference]: Finished difference Result 1790 states and 2634 transitions. [2024-10-11 05:14:18,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 05:14:18,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 298 [2024-10-11 05:14:18,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:18,407 INFO L225 Difference]: With dead ends: 1790 [2024-10-11 05:14:18,407 INFO L226 Difference]: Without dead ends: 1027 [2024-10-11 05:14:18,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-11 05:14:18,409 INFO L432 NwaCegarLoop]: 1075 mSDtfsCounter, 1018 mSDsluCounter, 4269 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 5344 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:18,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 5344 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 05:14:18,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-11 05:14:18,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1007. [2024-10-11 05:14:18,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 995 states have (on average 1.4673366834170853) internal successors, (1460), 995 states have internal predecessors, (1460), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:18,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1480 transitions. [2024-10-11 05:14:18,436 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1480 transitions. Word has length 298 [2024-10-11 05:14:18,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:18,436 INFO L471 AbstractCegarLoop]: Abstraction has 1007 states and 1480 transitions. [2024-10-11 05:14:18,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:18,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1480 transitions. [2024-10-11 05:14:18,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-10-11 05:14:18,439 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:18,439 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:18,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 05:14:18,439 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:18,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:18,440 INFO L85 PathProgramCache]: Analyzing trace with hash 230514639, now seen corresponding path program 1 times [2024-10-11 05:14:18,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:18,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882345097] [2024-10-11 05:14:18,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:18,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:19,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:19,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:19,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 05:14:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:19,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 05:14:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:19,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 05:14:19,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:19,033 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-11 05:14:19,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:19,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882345097] [2024-10-11 05:14:19,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882345097] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:19,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:14:19,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:14:19,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015553171] [2024-10-11 05:14:19,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:19,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:14:19,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:19,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:14:19,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:14:19,037 INFO L87 Difference]: Start difference. First operand 1007 states and 1480 transitions. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:19,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:19,101 INFO L93 Difference]: Finished difference Result 1761 states and 2593 transitions. [2024-10-11 05:14:19,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:14:19,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 298 [2024-10-11 05:14:19,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:19,107 INFO L225 Difference]: With dead ends: 1761 [2024-10-11 05:14:19,107 INFO L226 Difference]: Without dead ends: 1003 [2024-10-11 05:14:19,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:14:19,109 INFO L432 NwaCegarLoop]: 1079 mSDtfsCounter, 1006 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:19,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 2165 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:14:19,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-10-11 05:14:19,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2024-10-11 05:14:19,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 991 states have (on average 1.467204843592331) internal successors, (1454), 991 states have internal predecessors, (1454), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:19,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1474 transitions. [2024-10-11 05:14:19,134 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1474 transitions. Word has length 298 [2024-10-11 05:14:19,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:19,134 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1474 transitions. [2024-10-11 05:14:19,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:19,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1474 transitions. [2024-10-11 05:14:19,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-10-11 05:14:19,136 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:19,137 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:19,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 05:14:19,137 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:19,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:19,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1945031859, now seen corresponding path program 1 times [2024-10-11 05:14:19,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:19,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297248522] [2024-10-11 05:14:19,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:19,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:19,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:19,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:19,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 05:14:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:19,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 05:14:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:19,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-11 05:14:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:19,964 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-11 05:14:19,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:19,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297248522] [2024-10-11 05:14:19,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297248522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:19,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:14:19,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 05:14:19,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501039873] [2024-10-11 05:14:19,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:19,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 05:14:19,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:19,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 05:14:19,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 05:14:19,969 INFO L87 Difference]: Start difference. First operand 1003 states and 1474 transitions. Second operand has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:20,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:20,733 INFO L93 Difference]: Finished difference Result 2310 states and 3401 transitions. [2024-10-11 05:14:20,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 05:14:20,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 298 [2024-10-11 05:14:20,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:20,740 INFO L225 Difference]: With dead ends: 2310 [2024-10-11 05:14:20,740 INFO L226 Difference]: Without dead ends: 1011 [2024-10-11 05:14:20,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-10-11 05:14:20,743 INFO L432 NwaCegarLoop]: 1775 mSDtfsCounter, 1732 mSDsluCounter, 6124 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 7899 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:20,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1733 Valid, 7899 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 05:14:20,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2024-10-11 05:14:20,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1007. [2024-10-11 05:14:20,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 995 states have (on average 1.463316582914573) internal successors, (1456), 995 states have internal predecessors, (1456), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:20,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1476 transitions. [2024-10-11 05:14:20,767 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1476 transitions. Word has length 298 [2024-10-11 05:14:20,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:20,767 INFO L471 AbstractCegarLoop]: Abstraction has 1007 states and 1476 transitions. [2024-10-11 05:14:20,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:20,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1476 transitions. [2024-10-11 05:14:20,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-10-11 05:14:20,769 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:20,770 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:20,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 05:14:20,770 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:20,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:20,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1100833378, now seen corresponding path program 1 times [2024-10-11 05:14:20,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:20,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332389907] [2024-10-11 05:14:20,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:20,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:22,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:22,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:22,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 05:14:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:22,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 05:14:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:22,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-11 05:14:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:22,197 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-11 05:14:22,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:22,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332389907] [2024-10-11 05:14:22,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332389907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:22,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:14:22,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 05:14:22,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791176487] [2024-10-11 05:14:22,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:22,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 05:14:22,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:22,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 05:14:22,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 05:14:22,201 INFO L87 Difference]: Start difference. First operand 1007 states and 1476 transitions. Second operand has 8 states, 8 states have (on average 29.375) internal successors, (235), 8 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:22,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:22,386 INFO L93 Difference]: Finished difference Result 1753 states and 2572 transitions. [2024-10-11 05:14:22,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 05:14:22,388 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.375) internal successors, (235), 8 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 299 [2024-10-11 05:14:22,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:22,391 INFO L225 Difference]: With dead ends: 1753 [2024-10-11 05:14:22,392 INFO L226 Difference]: Without dead ends: 1031 [2024-10-11 05:14:22,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 05:14:22,393 INFO L432 NwaCegarLoop]: 1072 mSDtfsCounter, 1003 mSDsluCounter, 5333 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 6405 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:22,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 6405 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 05:14:22,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-10-11 05:14:22,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1025. [2024-10-11 05:14:22,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1013 states have (on average 1.4629812438302072) internal successors, (1482), 1013 states have internal predecessors, (1482), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:22,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1502 transitions. [2024-10-11 05:14:22,416 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1502 transitions. Word has length 299 [2024-10-11 05:14:22,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:22,417 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1502 transitions. [2024-10-11 05:14:22,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.375) internal successors, (235), 8 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:22,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1502 transitions. [2024-10-11 05:14:22,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-10-11 05:14:22,419 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:22,419 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:22,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 05:14:22,420 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:22,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:22,420 INFO L85 PathProgramCache]: Analyzing trace with hash -892907450, now seen corresponding path program 1 times [2024-10-11 05:14:22,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:22,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115915390] [2024-10-11 05:14:22,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:22,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:22,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:22,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:22,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 05:14:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:22,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-11 05:14:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:22,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-11 05:14:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:22,896 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-11 05:14:22,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:22,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115915390] [2024-10-11 05:14:22,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115915390] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:22,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:14:22,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 05:14:22,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828061980] [2024-10-11 05:14:22,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:22,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:14:22,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:22,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:14:22,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:14:22,900 INFO L87 Difference]: Start difference. First operand 1025 states and 1502 transitions. Second operand has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-11 05:14:23,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:23,476 INFO L93 Difference]: Finished difference Result 2360 states and 3464 transitions. [2024-10-11 05:14:23,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 05:14:23,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 300 [2024-10-11 05:14:23,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:23,481 INFO L225 Difference]: With dead ends: 2360 [2024-10-11 05:14:23,481 INFO L226 Difference]: Without dead ends: 1033 [2024-10-11 05:14:23,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 05:14:23,483 INFO L432 NwaCegarLoop]: 1801 mSDtfsCounter, 761 mSDsluCounter, 6193 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 7994 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:23,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 7994 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 05:14:23,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2024-10-11 05:14:23,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1029. [2024-10-11 05:14:23,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 1017 states have (on average 1.4611602753195674) internal successors, (1486), 1017 states have internal predecessors, (1486), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1506 transitions. [2024-10-11 05:14:23,505 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1506 transitions. Word has length 300 [2024-10-11 05:14:23,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:23,505 INFO L471 AbstractCegarLoop]: Abstraction has 1029 states and 1506 transitions. [2024-10-11 05:14:23,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-11 05:14:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1506 transitions. [2024-10-11 05:14:23,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-10-11 05:14:23,507 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:23,508 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:23,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 05:14:23,508 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:23,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:23,508 INFO L85 PathProgramCache]: Analyzing trace with hash 573660817, now seen corresponding path program 1 times [2024-10-11 05:14:23,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:23,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277730864] [2024-10-11 05:14:23,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:23,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:23,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:24,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:24,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:24,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 05:14:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:24,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-11 05:14:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:24,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-11 05:14:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-11 05:14:24,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:24,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277730864] [2024-10-11 05:14:24,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277730864] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:24,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:14:24,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 05:14:24,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409296735] [2024-10-11 05:14:24,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:24,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 05:14:24,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:24,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 05:14:24,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-11 05:14:24,647 INFO L87 Difference]: Start difference. First operand 1029 states and 1506 transitions. Second operand has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:24,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:24,776 INFO L93 Difference]: Finished difference Result 1796 states and 2629 transitions. [2024-10-11 05:14:24,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 05:14:24,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 300 [2024-10-11 05:14:24,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:24,782 INFO L225 Difference]: With dead ends: 1796 [2024-10-11 05:14:24,782 INFO L226 Difference]: Without dead ends: 1055 [2024-10-11 05:14:24,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-11 05:14:24,784 INFO L432 NwaCegarLoop]: 1073 mSDtfsCounter, 996 mSDsluCounter, 4253 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 5326 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:24,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 5326 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 05:14:24,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2024-10-11 05:14:24,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1035. [2024-10-11 05:14:24,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1023 states have (on average 1.4604105571847508) internal successors, (1494), 1023 states have internal predecessors, (1494), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:24,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1514 transitions. [2024-10-11 05:14:24,808 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1514 transitions. Word has length 300 [2024-10-11 05:14:24,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:24,808 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1514 transitions. [2024-10-11 05:14:24,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 05:14:24,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1514 transitions. [2024-10-11 05:14:24,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-10-11 05:14:24,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:24,811 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:24,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 05:14:24,811 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:24,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:24,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1830108133, now seen corresponding path program 1 times [2024-10-11 05:14:24,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:24,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725489277] [2024-10-11 05:14:24,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:24,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:26,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:26,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:26,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 05:14:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:26,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-11 05:14:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:26,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 05:14:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:26,061 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-11 05:14:26,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:26,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725489277] [2024-10-11 05:14:26,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725489277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:26,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:14:26,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 05:14:26,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415768737] [2024-10-11 05:14:26,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:26,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:14:26,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:26,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:14:26,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:14:26,064 INFO L87 Difference]: Start difference. First operand 1035 states and 1514 transitions. Second operand has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:14:26,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:26,211 INFO L93 Difference]: Finished difference Result 1889 states and 2773 transitions. [2024-10-11 05:14:26,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 05:14:26,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 301 [2024-10-11 05:14:26,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:26,217 INFO L225 Difference]: With dead ends: 1889 [2024-10-11 05:14:26,217 INFO L226 Difference]: Without dead ends: 1206 [2024-10-11 05:14:26,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-11 05:14:26,220 INFO L432 NwaCegarLoop]: 1076 mSDtfsCounter, 1635 mSDsluCounter, 3224 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 4300 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:26,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 4300 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 05:14:26,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-10-11 05:14:26,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1206. [2024-10-11 05:14:26,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1194 states have (on average 1.463149078726968) internal successors, (1747), 1194 states have internal predecessors, (1747), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:26,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1767 transitions. [2024-10-11 05:14:26,246 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1767 transitions. Word has length 301 [2024-10-11 05:14:26,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:26,247 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 1767 transitions. [2024-10-11 05:14:26,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 05:14:26,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1767 transitions. [2024-10-11 05:14:26,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2024-10-11 05:14:26,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:26,254 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:26,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 05:14:26,255 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:26,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:26,256 INFO L85 PathProgramCache]: Analyzing trace with hash -329435553, now seen corresponding path program 1 times [2024-10-11 05:14:26,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:26,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836748839] [2024-10-11 05:14:26,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:26,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:27,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:27,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:27,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 05:14:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:27,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-11 05:14:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:27,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 05:14:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:27,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-10-11 05:14:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:27,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-10-11 05:14:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:27,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2024-10-11 05:14:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:27,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2024-10-11 05:14:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:27,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2024-10-11 05:14:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:27,187 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 05:14:27,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:27,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836748839] [2024-10-11 05:14:27,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836748839] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:27,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:14:27,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 05:14:27,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175073082] [2024-10-11 05:14:27,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:27,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 05:14:27,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:27,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 05:14:27,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 05:14:27,189 INFO L87 Difference]: Start difference. First operand 1206 states and 1767 transitions. Second operand has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 05:14:27,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:27,224 INFO L93 Difference]: Finished difference Result 1890 states and 2774 transitions. [2024-10-11 05:14:27,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 05:14:27,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 663 [2024-10-11 05:14:27,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:27,234 INFO L225 Difference]: With dead ends: 1890 [2024-10-11 05:14:27,234 INFO L226 Difference]: Without dead ends: 1207 [2024-10-11 05:14:27,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 05:14:27,239 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 0 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:27,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2183 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:14:27,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-10-11 05:14:27,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2024-10-11 05:14:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1195 states have (on average 1.4627615062761505) internal successors, (1748), 1195 states have internal predecessors, (1748), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:27,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1768 transitions. [2024-10-11 05:14:27,265 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1768 transitions. Word has length 663 [2024-10-11 05:14:27,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:27,266 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1768 transitions. [2024-10-11 05:14:27,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 05:14:27,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1768 transitions. [2024-10-11 05:14:27,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2024-10-11 05:14:27,272 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:27,273 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:27,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 05:14:27,274 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:27,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:27,274 INFO L85 PathProgramCache]: Analyzing trace with hash 2022801677, now seen corresponding path program 1 times [2024-10-11 05:14:27,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:27,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325342336] [2024-10-11 05:14:27,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:27,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:28,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:28,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:28,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 05:14:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:28,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-11 05:14:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:28,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 05:14:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:28,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2024-10-11 05:14:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:28,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2024-10-11 05:14:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:28,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2024-10-11 05:14:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:28,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2024-10-11 05:14:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:28,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2024-10-11 05:14:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:28,363 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 05:14:28,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:28,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325342336] [2024-10-11 05:14:28,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325342336] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:28,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949153356] [2024-10-11 05:14:28,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:28,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:28,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:14:28,366 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:14:28,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 05:14:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:29,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 3332 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-11 05:14:29,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:14:30,303 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 283 proven. 92 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-10-11 05:14:30,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 05:14:31,170 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-11 05:14:31,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949153356] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:31,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 05:14:31,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-10-11 05:14:31,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305768331] [2024-10-11 05:14:31,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:31,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:14:31,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:31,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:14:31,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-10-11 05:14:31,173 INFO L87 Difference]: Start difference. First operand 1207 states and 1768 transitions. Second operand has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 05:14:31,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:31,394 INFO L93 Difference]: Finished difference Result 1891 states and 2774 transitions. [2024-10-11 05:14:31,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:14:31,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 664 [2024-10-11 05:14:31,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:31,402 INFO L225 Difference]: With dead ends: 1891 [2024-10-11 05:14:31,403 INFO L226 Difference]: Without dead ends: 1207 [2024-10-11 05:14:31,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1351 GetRequests, 1333 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-11 05:14:31,407 INFO L432 NwaCegarLoop]: 996 mSDtfsCounter, 1839 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:31,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1844 Valid, 1994 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 05:14:31,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-10-11 05:14:31,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2024-10-11 05:14:31,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1195 states have (on average 1.4619246861924686) internal successors, (1747), 1195 states have internal predecessors, (1747), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:31,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1767 transitions. [2024-10-11 05:14:31,439 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1767 transitions. Word has length 664 [2024-10-11 05:14:31,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:31,440 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1767 transitions. [2024-10-11 05:14:31,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 05:14:31,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1767 transitions. [2024-10-11 05:14:31,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2024-10-11 05:14:31,445 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:31,445 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:31,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 05:14:31,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:31,648 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:31,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:31,648 INFO L85 PathProgramCache]: Analyzing trace with hash -99790495, now seen corresponding path program 1 times [2024-10-11 05:14:31,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:31,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524470717] [2024-10-11 05:14:31,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:31,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:32,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:32,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:32,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 05:14:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:32,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-11 05:14:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:32,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 05:14:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:32,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2024-10-11 05:14:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:32,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2024-10-11 05:14:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:32,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2024-10-11 05:14:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:32,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2024-10-11 05:14:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:32,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2024-10-11 05:14:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:32,465 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 05:14:32,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:32,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524470717] [2024-10-11 05:14:32,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524470717] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:32,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791559232] [2024-10-11 05:14:32,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:32,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:32,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:14:32,468 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:14:32,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 05:14:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:33,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 3335 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-11 05:14:33,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:14:34,708 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 283 proven. 92 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-10-11 05:14:34,708 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 05:14:35,490 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-11 05:14:35,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791559232] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:35,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 05:14:35,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-10-11 05:14:35,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553708905] [2024-10-11 05:14:35,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:35,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:14:35,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:35,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:14:35,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-10-11 05:14:35,493 INFO L87 Difference]: Start difference. First operand 1207 states and 1767 transitions. Second operand has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 05:14:35,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:35,661 INFO L93 Difference]: Finished difference Result 1891 states and 2772 transitions. [2024-10-11 05:14:35,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:14:35,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 665 [2024-10-11 05:14:35,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:35,665 INFO L225 Difference]: With dead ends: 1891 [2024-10-11 05:14:35,665 INFO L226 Difference]: Without dead ends: 1207 [2024-10-11 05:14:35,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1353 GetRequests, 1335 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-11 05:14:35,667 INFO L432 NwaCegarLoop]: 996 mSDtfsCounter, 1815 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1820 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:35,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1820 Valid, 1994 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 05:14:35,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-10-11 05:14:35,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2024-10-11 05:14:35,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1195 states have (on average 1.4610878661087867) internal successors, (1746), 1195 states have internal predecessors, (1746), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:35,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1766 transitions. [2024-10-11 05:14:35,692 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1766 transitions. Word has length 665 [2024-10-11 05:14:35,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:35,693 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1766 transitions. [2024-10-11 05:14:35,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 05:14:35,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1766 transitions. [2024-10-11 05:14:35,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2024-10-11 05:14:35,698 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:35,699 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:35,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-11 05:14:35,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-11 05:14:35,904 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:35,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:35,904 INFO L85 PathProgramCache]: Analyzing trace with hash -874118102, now seen corresponding path program 1 times [2024-10-11 05:14:35,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:35,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60435341] [2024-10-11 05:14:35,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:35,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:36,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:36,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:36,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 05:14:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:36,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-11 05:14:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:36,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 05:14:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:36,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2024-10-11 05:14:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:36,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-10-11 05:14:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:36,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2024-10-11 05:14:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:36,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2024-10-11 05:14:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:36,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2024-10-11 05:14:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 05:14:36,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:36,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60435341] [2024-10-11 05:14:36,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60435341] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:36,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372987101] [2024-10-11 05:14:36,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:36,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:36,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:14:36,826 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:14:36,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 05:14:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:38,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 3338 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-11 05:14:38,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:14:38,880 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 283 proven. 92 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-10-11 05:14:38,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 05:14:39,593 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-11 05:14:39,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372987101] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:39,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 05:14:39,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-10-11 05:14:39,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334468912] [2024-10-11 05:14:39,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:39,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:14:39,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:39,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:14:39,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-10-11 05:14:39,597 INFO L87 Difference]: Start difference. First operand 1207 states and 1766 transitions. Second operand has 5 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 05:14:39,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:39,794 INFO L93 Difference]: Finished difference Result 1891 states and 2770 transitions. [2024-10-11 05:14:39,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:14:39,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 666 [2024-10-11 05:14:39,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:39,802 INFO L225 Difference]: With dead ends: 1891 [2024-10-11 05:14:39,806 INFO L226 Difference]: Without dead ends: 1207 [2024-10-11 05:14:39,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1355 GetRequests, 1337 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-11 05:14:39,809 INFO L432 NwaCegarLoop]: 996 mSDtfsCounter, 1803 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1808 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:39,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1808 Valid, 1994 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 05:14:39,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-10-11 05:14:39,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2024-10-11 05:14:39,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1195 states have (on average 1.4602510460251046) internal successors, (1745), 1195 states have internal predecessors, (1745), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:39,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1765 transitions. [2024-10-11 05:14:39,841 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1765 transitions. Word has length 666 [2024-10-11 05:14:39,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:39,842 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1765 transitions. [2024-10-11 05:14:39,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 05:14:39,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1765 transitions. [2024-10-11 05:14:39,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2024-10-11 05:14:39,848 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:39,848 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:39,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-11 05:14:40,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-11 05:14:40,049 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:40,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:40,050 INFO L85 PathProgramCache]: Analyzing trace with hash -644106829, now seen corresponding path program 1 times [2024-10-11 05:14:40,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:40,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402104354] [2024-10-11 05:14:40,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:40,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:40,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:40,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:40,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 05:14:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:40,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-11 05:14:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:40,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 05:14:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:40,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2024-10-11 05:14:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:40,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2024-10-11 05:14:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:40,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2024-10-11 05:14:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:40,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2024-10-11 05:14:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:40,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2024-10-11 05:14:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:40,910 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 05:14:40,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:40,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402104354] [2024-10-11 05:14:40,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402104354] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:40,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231948719] [2024-10-11 05:14:40,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:40,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:40,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:14:40,914 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:14:40,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 05:14:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:42,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 3341 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-11 05:14:42,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:14:43,057 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 283 proven. 92 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-10-11 05:14:43,057 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 05:14:43,856 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-11 05:14:43,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231948719] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:43,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 05:14:43,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-10-11 05:14:43,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856520488] [2024-10-11 05:14:43,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:43,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:14:43,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:43,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:14:43,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-10-11 05:14:43,860 INFO L87 Difference]: Start difference. First operand 1207 states and 1765 transitions. Second operand has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 05:14:44,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:44,045 INFO L93 Difference]: Finished difference Result 1891 states and 2768 transitions. [2024-10-11 05:14:44,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:14:44,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 667 [2024-10-11 05:14:44,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:44,049 INFO L225 Difference]: With dead ends: 1891 [2024-10-11 05:14:44,049 INFO L226 Difference]: Without dead ends: 1207 [2024-10-11 05:14:44,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1357 GetRequests, 1339 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-11 05:14:44,051 INFO L432 NwaCegarLoop]: 996 mSDtfsCounter, 891 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 2002 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:44,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 2002 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 05:14:44,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-10-11 05:14:44,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2024-10-11 05:14:44,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1195 states have (on average 1.4594142259414227) internal successors, (1744), 1195 states have internal predecessors, (1744), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1764 transitions. [2024-10-11 05:14:44,082 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1764 transitions. Word has length 667 [2024-10-11 05:14:44,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:44,082 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1764 transitions. [2024-10-11 05:14:44,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 05:14:44,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1764 transitions. [2024-10-11 05:14:44,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2024-10-11 05:14:44,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:44,089 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:44,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-11 05:14:44,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-11 05:14:44,291 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:44,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:44,291 INFO L85 PathProgramCache]: Analyzing trace with hash 673404071, now seen corresponding path program 1 times [2024-10-11 05:14:44,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:44,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153249188] [2024-10-11 05:14:44,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:44,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:45,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:45,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:45,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 05:14:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:45,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-11 05:14:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:45,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 05:14:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:45,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2024-10-11 05:14:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:45,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2024-10-11 05:14:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:45,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2024-10-11 05:14:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:45,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2024-10-11 05:14:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:45,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2024-10-11 05:14:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:45,012 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 05:14:45,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:45,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153249188] [2024-10-11 05:14:45,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153249188] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:45,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409691511] [2024-10-11 05:14:45,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:45,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:45,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:14:45,014 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:14:45,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 05:14:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:46,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 3344 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 05:14:46,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:14:46,978 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-10-11 05:14:46,978 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 05:14:46,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409691511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:14:46,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 05:14:46,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-11 05:14:46,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039668869] [2024-10-11 05:14:46,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:14:46,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:14:46,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:14:46,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:14:46,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:14:46,980 INFO L87 Difference]: Start difference. First operand 1207 states and 1764 transitions. Second operand has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 05:14:47,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:14:47,352 INFO L93 Difference]: Finished difference Result 1890 states and 2765 transitions. [2024-10-11 05:14:47,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:14:47,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 668 [2024-10-11 05:14:47,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:14:47,356 INFO L225 Difference]: With dead ends: 1890 [2024-10-11 05:14:47,356 INFO L226 Difference]: Without dead ends: 1206 [2024-10-11 05:14:47,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-11 05:14:47,358 INFO L432 NwaCegarLoop]: 788 mSDtfsCounter, 821 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 05:14:47,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 1578 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 05:14:47,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-10-11 05:14:47,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1206. [2024-10-11 05:14:47,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1194 states have (on average 1.4581239530988275) internal successors, (1741), 1194 states have internal predecessors, (1741), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 05:14:47,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1761 transitions. [2024-10-11 05:14:47,394 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1761 transitions. Word has length 668 [2024-10-11 05:14:47,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:14:47,394 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 1761 transitions. [2024-10-11 05:14:47,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 05:14:47,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1761 transitions. [2024-10-11 05:14:47,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2024-10-11 05:14:47,400 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:14:47,401 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:14:47,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-11 05:14:47,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-11 05:14:47,602 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:14:47,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:14:47,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1785066031, now seen corresponding path program 1 times [2024-10-11 05:14:47,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:14:47,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646576974] [2024-10-11 05:14:47,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:47,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:14:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:48,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 05:14:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:48,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 05:14:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:48,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 05:14:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:48,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-11 05:14:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:48,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 05:14:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:48,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2024-10-11 05:14:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:48,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2024-10-11 05:14:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:48,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2024-10-11 05:14:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:48,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2024-10-11 05:14:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:48,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2024-10-11 05:14:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:14:48,364 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 183 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 05:14:48,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:14:48,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646576974] [2024-10-11 05:14:48,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646576974] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:14:48,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321872358] [2024-10-11 05:14:48,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:14:48,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:14:48,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:14:48,366 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:14:48,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process