./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.unsafe_arbitrated_fifos_n2d8w8.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 77ae88daffb8285870a38f38e30db5571fe2930110ef63da660dc306a4cb95e3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 03:13:03,888 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 03:13:03,940 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 03:13:03,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 03:13:03,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 03:13:03,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 03:13:03,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 03:13:03,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 03:13:03,968 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 03:13:03,968 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 03:13:03,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 03:13:03,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 03:13:03,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 03:13:03,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 03:13:03,970 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 03:13:03,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 03:13:03,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 03:13:03,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 03:13:03,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 03:13:03,971 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 03:13:03,971 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 03:13:03,972 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 03:13:03,972 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 03:13:03,972 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 03:13:03,972 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 03:13:03,973 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 03:13:03,973 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 03:13:03,973 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 03:13:03,973 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 03:13:03,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:13:03,974 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 03:13:03,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 03:13:03,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 03:13:03,974 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 03:13:03,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 03:13:03,975 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 03:13:03,975 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 03:13:03,975 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 03:13:03,976 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 03:13:03,976 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77ae88daffb8285870a38f38e30db5571fe2930110ef63da660dc306a4cb95e3 [2024-10-24 03:13:04,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 03:13:04,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 03:13:04,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 03:13:04,175 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 03:13:04,176 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 03:13:04,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c [2024-10-24 03:13:05,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 03:13:05,608 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 03:13:05,608 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c [2024-10-24 03:13:05,623 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eed6dbc79/de0cd37dbd324118b6d06616e200dae5/FLAG51ab6fe32 [2024-10-24 03:13:05,970 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eed6dbc79/de0cd37dbd324118b6d06616e200dae5 [2024-10-24 03:13:05,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 03:13:05,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 03:13:05,973 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 03:13:05,973 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 03:13:05,978 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 03:13:05,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:13:05" (1/1) ... [2024-10-24 03:13:05,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@224679ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:05, skipping insertion in model container [2024-10-24 03:13:05,979 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:13:05" (1/1) ... [2024-10-24 03:13:06,016 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 03:13:06,189 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.unsafe_arbitrated_fifos_n2d8w8.c[1270,1283] [2024-10-24 03:13:06,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:13:06,353 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 03:13:06,361 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.unsafe_arbitrated_fifos_n2d8w8.c[1270,1283] [2024-10-24 03:13:06,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:13:06,464 INFO L204 MainTranslator]: Completed translation [2024-10-24 03:13:06,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:06 WrapperNode [2024-10-24 03:13:06,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 03:13:06,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 03:13:06,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 03:13:06,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 03:13:06,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:06" (1/1) ... [2024-10-24 03:13:06,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:06" (1/1) ... [2024-10-24 03:13:06,750 INFO L138 Inliner]: procedures = 18, calls = 41, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2371 [2024-10-24 03:13:06,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 03:13:06,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 03:13:06,752 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 03:13:06,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 03:13:06,760 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:06" (1/1) ... [2024-10-24 03:13:06,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:06" (1/1) ... [2024-10-24 03:13:06,828 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:06" (1/1) ... [2024-10-24 03:13:06,948 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]. [2024-10-24 03:13:06,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:06" (1/1) ... [2024-10-24 03:13:06,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:06" (1/1) ... [2024-10-24 03:13:07,017 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:06" (1/1) ... [2024-10-24 03:13:07,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:06" (1/1) ... [2024-10-24 03:13:07,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:06" (1/1) ... [2024-10-24 03:13:07,054 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:06" (1/1) ... [2024-10-24 03:13:07,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 03:13:07,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 03:13:07,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 03:13:07,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 03:13:07,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:06" (1/1) ... [2024-10-24 03:13:07,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:13:07,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:07,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 03:13:07,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 03:13:07,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 03:13:07,142 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 03:13:07,142 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 03:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 03:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 03:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 03:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 03:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 03:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 03:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 03:13:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 03:13:07,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 03:13:07,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 03:13:07,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 03:13:07,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 03:13:07,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 03:13:07,351 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 03:13:07,352 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 03:13:09,135 INFO L? ?]: Removed 1277 outVars from TransFormulas that were not future-live. [2024-10-24 03:13:09,136 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 03:13:09,207 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 03:13:09,207 INFO L314 CfgBuilder]: Removed 7 assume(true) statements. [2024-10-24 03:13:09,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:13:09 BoogieIcfgContainer [2024-10-24 03:13:09,208 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 03:13:09,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 03:13:09,209 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 03:13:09,212 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 03:13:09,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:13:05" (1/3) ... [2024-10-24 03:13:09,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539b242f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:13:09, skipping insertion in model container [2024-10-24 03:13:09,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:13:06" (2/3) ... [2024-10-24 03:13:09,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539b242f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:13:09, skipping insertion in model container [2024-10-24 03:13:09,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:13:09" (3/3) ... [2024-10-24 03:13:09,214 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c [2024-10-24 03:13:09,225 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 03:13:09,225 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 03:13:09,279 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 03:13:09,285 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;@52122806, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 03:13:09,285 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 03:13:09,292 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) [2024-10-24 03:13:09,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-10-24 03:13:09,305 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:09,306 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] [2024-10-24 03:13:09,306 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:09,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:09,310 INFO L85 PathProgramCache]: Analyzing trace with hash 301041677, now seen corresponding path program 1 times [2024-10-24 03:13:09,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:09,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537881444] [2024-10-24 03:13:09,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:09,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:09,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 03:13:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:09,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 03:13:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:09,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 03:13:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:09,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:13:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:09,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:13:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 03:13:09,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:09,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537881444] [2024-10-24 03:13:09,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537881444] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:13:09,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:13:09,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 03:13:09,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264219927] [2024-10-24 03:13:09,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:09,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 03:13:09,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:09,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 03:13:09,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 03:13:09,738 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 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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) [2024-10-24 03:13:09,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:09,819 INFO L93 Difference]: Finished difference Result 1479 states and 2225 transitions. [2024-10-24 03:13:09,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 03:13:09,821 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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 236 [2024-10-24 03:13:09,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:09,835 INFO L225 Difference]: With dead ends: 1479 [2024-10-24 03:13:09,836 INFO L226 Difference]: Without dead ends: 742 [2024-10-24 03:13:09,841 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 [2024-10-24 03:13:09,845 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 [2024-10-24 03:13:09,846 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] [2024-10-24 03:13:09,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-10-24 03:13:09,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2024-10-24 03:13:09,906 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) [2024-10-24 03:13:09,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1106 transitions. [2024-10-24 03:13:09,910 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1106 transitions. Word has length 236 [2024-10-24 03:13:09,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:09,911 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 1106 transitions. [2024-10-24 03:13:09,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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) [2024-10-24 03:13:09,911 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1106 transitions. [2024-10-24 03:13:09,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-10-24 03:13:09,918 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:09,918 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] [2024-10-24 03:13:09,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 03:13:09,919 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:09,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:09,919 INFO L85 PathProgramCache]: Analyzing trace with hash -2136454480, now seen corresponding path program 1 times [2024-10-24 03:13:09,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:09,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760318569] [2024-10-24 03:13:09,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:09,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:10,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 03:13:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:10,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 03:13:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:10,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 03:13:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:10,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:13:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:10,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:13:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:10,440 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 03:13:10,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:10,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760318569] [2024-10-24 03:13:10,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760318569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:13:10,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:13:10,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 03:13:10,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453347748] [2024-10-24 03:13:10,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:10,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 03:13:10,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:10,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 03:13:10,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 03:13:10,446 INFO L87 Difference]: Start difference. First operand 742 states and 1106 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2024-10-24 03:13:10,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:10,478 INFO L93 Difference]: Finished difference Result 1483 states and 2211 transitions. [2024-10-24 03:13:10,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 03:13:10,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 236 [2024-10-24 03:13:10,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:10,481 INFO L225 Difference]: With dead ends: 1483 [2024-10-24 03:13:10,481 INFO L226 Difference]: Without dead ends: 747 [2024-10-24 03:13:10,483 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 [2024-10-24 03:13:10,484 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 [2024-10-24 03:13:10,485 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] [2024-10-24 03:13:10,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-10-24 03:13:10,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 743. [2024-10-24 03:13:10,502 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) [2024-10-24 03:13:10,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1107 transitions. [2024-10-24 03:13:10,505 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1107 transitions. Word has length 236 [2024-10-24 03:13:10,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:10,506 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 1107 transitions. [2024-10-24 03:13:10,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2024-10-24 03:13:10,506 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1107 transitions. [2024-10-24 03:13:10,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-10-24 03:13:10,509 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:10,509 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] [2024-10-24 03:13:10,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 03:13:10,510 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:10,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:10,511 INFO L85 PathProgramCache]: Analyzing trace with hash 321739989, now seen corresponding path program 1 times [2024-10-24 03:13:10,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:10,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766706605] [2024-10-24 03:13:10,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:10,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:10,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 03:13:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:10,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 03:13:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:10,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 03:13:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:10,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 03:13:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:10,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 03:13:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:10,937 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 03:13:10,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:10,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766706605] [2024-10-24 03:13:10,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766706605] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:10,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887823026] [2024-10-24 03:13:10,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:10,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:10,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:10,941 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:10,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 03:13:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:11,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 03:13:11,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:11,378 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 03:13:11,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:13:11,430 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-24 03:13:11,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887823026] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:11,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 03:13:11,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2024-10-24 03:13:11,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571035141] [2024-10-24 03:13:11,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:11,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 03:13:11,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:11,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 03:13:11,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:13:11,436 INFO L87 Difference]: Start difference. First operand 743 states and 1107 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2024-10-24 03:13:11,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:11,467 INFO L93 Difference]: Finished difference Result 1458 states and 2173 transitions. [2024-10-24 03:13:11,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 03:13:11,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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 239 [2024-10-24 03:13:11,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:11,471 INFO L225 Difference]: With dead ends: 1458 [2024-10-24 03:13:11,471 INFO L226 Difference]: Without dead ends: 744 [2024-10-24 03:13:11,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:13:11,473 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 [2024-10-24 03:13:11,474 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] [2024-10-24 03:13:11,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-10-24 03:13:11,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2024-10-24 03:13:11,485 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) [2024-10-24 03:13:11,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1108 transitions. [2024-10-24 03:13:11,489 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1108 transitions. Word has length 239 [2024-10-24 03:13:11,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:11,489 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1108 transitions. [2024-10-24 03:13:11,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2024-10-24 03:13:11,489 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1108 transitions. [2024-10-24 03:13:11,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-10-24 03:13:11,491 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:11,491 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] [2024-10-24 03:13:11,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 03:13:11,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:11,696 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:11,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:11,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1167927624, now seen corresponding path program 1 times [2024-10-24 03:13:11,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:11,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222566040] [2024-10-24 03:13:11,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:11,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:11,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 03:13:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:12,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 03:13:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:12,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 03:13:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:12,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:12,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 03:13:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:12,005 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-24 03:13:12,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:12,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222566040] [2024-10-24 03:13:12,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222566040] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:12,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744720567] [2024-10-24 03:13:12,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:12,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:12,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:12,008 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:12,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 03:13:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:12,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 03:13:12,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:12,416 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-24 03:13:12,416 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:13:12,999 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-24 03:13:12,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744720567] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:13:12,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 03:13:13,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 8] total 12 [2024-10-24 03:13:13,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050389709] [2024-10-24 03:13:13,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 03:13:13,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 03:13:13,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:13,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 03:13:13,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-10-24 03:13:13,002 INFO L87 Difference]: Start difference. First operand 744 states and 1108 transitions. Second operand has 12 states, 12 states have (on average 29.166666666666668) internal successors, (350), 12 states have internal predecessors, (350), 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) [2024-10-24 03:13:14,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:14,321 INFO L93 Difference]: Finished difference Result 2097 states and 3126 transitions. [2024-10-24 03:13:14,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 03:13:14,322 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 29.166666666666668) internal successors, (350), 12 states have internal predecessors, (350), 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 242 [2024-10-24 03:13:14,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:14,327 INFO L225 Difference]: With dead ends: 2097 [2024-10-24 03:13:14,328 INFO L226 Difference]: Without dead ends: 1360 [2024-10-24 03:13:14,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-10-24 03:13:14,329 INFO L432 NwaCegarLoop]: 1390 mSDtfsCounter, 4054 mSDsluCounter, 4962 mSDsCounter, 0 mSdLazyCounter, 2263 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4059 SdHoareTripleChecker+Valid, 6352 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:14,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4059 Valid, 6352 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2263 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 03:13:14,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2024-10-24 03:13:14,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 961. [2024-10-24 03:13:14,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 949 states have (on average 1.4868282402528978) internal successors, (1411), 949 states have internal predecessors, (1411), 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) [2024-10-24 03:13:14,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1431 transitions. [2024-10-24 03:13:14,366 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1431 transitions. Word has length 242 [2024-10-24 03:13:14,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:14,366 INFO L471 AbstractCegarLoop]: Abstraction has 961 states and 1431 transitions. [2024-10-24 03:13:14,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 29.166666666666668) internal successors, (350), 12 states have internal predecessors, (350), 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) [2024-10-24 03:13:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1431 transitions. [2024-10-24 03:13:14,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-10-24 03:13:14,369 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:14,369 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] [2024-10-24 03:13:14,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 03:13:14,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-10-24 03:13:14,570 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:14,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:14,570 INFO L85 PathProgramCache]: Analyzing trace with hash -678309531, now seen corresponding path program 1 times [2024-10-24 03:13:14,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:14,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594901880] [2024-10-24 03:13:14,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:14,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:14,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 03:13:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:14,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 03:13:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:14,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 03:13:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:14,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:13:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:14,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 03:13:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:14,902 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-24 03:13:14,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:14,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594901880] [2024-10-24 03:13:14,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594901880] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:14,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421379824] [2024-10-24 03:13:14,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:14,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:14,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:14,904 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:14,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 03:13:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:15,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 03:13:15,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:15,262 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 03:13:15,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:13:15,298 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-24 03:13:15,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421379824] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:13:15,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 03:13:15,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 9 [2024-10-24 03:13:15,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242986749] [2024-10-24 03:13:15,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 03:13:15,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 03:13:15,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:15,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 03:13:15,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:13:15,301 INFO L87 Difference]: Start difference. First operand 961 states and 1431 transitions. Second operand has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 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) [2024-10-24 03:13:15,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:15,386 INFO L93 Difference]: Finished difference Result 1949 states and 2907 transitions. [2024-10-24 03:13:15,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 03:13:15,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 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 246 [2024-10-24 03:13:15,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:15,389 INFO L225 Difference]: With dead ends: 1949 [2024-10-24 03:13:15,389 INFO L226 Difference]: Without dead ends: 1000 [2024-10-24 03:13:15,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:13:15,391 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 48 mSDsluCounter, 5501 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 6608 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:15,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 6608 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:13:15,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2024-10-24 03:13:15,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 996. [2024-10-24 03:13:15,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 984 states have (on average 1.483739837398374) internal successors, (1460), 984 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) [2024-10-24 03:13:15,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1480 transitions. [2024-10-24 03:13:15,408 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1480 transitions. Word has length 246 [2024-10-24 03:13:15,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:15,409 INFO L471 AbstractCegarLoop]: Abstraction has 996 states and 1480 transitions. [2024-10-24 03:13:15,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 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) [2024-10-24 03:13:15,409 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1480 transitions. [2024-10-24 03:13:15,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-10-24 03:13:15,411 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:15,411 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] [2024-10-24 03:13:15,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 03:13:15,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:15,613 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:15,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:15,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1225844051, now seen corresponding path program 2 times [2024-10-24 03:13:15,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:15,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907457193] [2024-10-24 03:13:15,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:15,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:15,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 03:13:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:15,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 03:13:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:15,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 03:13:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:15,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 03:13:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:15,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 03:13:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:15,969 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-24 03:13:15,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:15,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907457193] [2024-10-24 03:13:15,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907457193] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:15,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067354280] [2024-10-24 03:13:15,969 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 03:13:15,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:15,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:15,971 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:15,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 03:13:16,291 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 03:13:16,291 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 03:13:16,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-24 03:13:16,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-10-24 03:13:16,879 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:13:16,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067354280] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:13:16,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:13:16,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2024-10-24 03:13:16,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243239052] [2024-10-24 03:13:16,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:16,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:13:16,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:16,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:13:16,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-24 03:13:16,881 INFO L87 Difference]: Start difference. First operand 996 states and 1480 transitions. Second operand has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 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) [2024-10-24 03:13:17,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:17,828 INFO L93 Difference]: Finished difference Result 2267 states and 3374 transitions. [2024-10-24 03:13:17,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:13:17,828 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 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 258 [2024-10-24 03:13:17,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:17,833 INFO L225 Difference]: With dead ends: 2267 [2024-10-24 03:13:17,833 INFO L226 Difference]: Without dead ends: 1618 [2024-10-24 03:13:17,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-10-24 03:13:17,835 INFO L432 NwaCegarLoop]: 1344 mSDtfsCounter, 2973 mSDsluCounter, 3305 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 4649 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:17,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2978 Valid, 4649 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1785 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:13:17,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2024-10-24 03:13:17,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1224. [2024-10-24 03:13:17,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1207 states have (on average 1.4813587406793702) internal successors, (1788), 1207 states have internal predecessors, (1788), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 03:13:17,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1818 transitions. [2024-10-24 03:13:17,862 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1818 transitions. Word has length 258 [2024-10-24 03:13:17,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:17,865 INFO L471 AbstractCegarLoop]: Abstraction has 1224 states and 1818 transitions. [2024-10-24 03:13:17,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 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) [2024-10-24 03:13:17,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1818 transitions. [2024-10-24 03:13:17,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-10-24 03:13:17,869 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:17,869 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] [2024-10-24 03:13:17,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 03:13:18,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:18,070 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:18,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:18,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1560320403, now seen corresponding path program 1 times [2024-10-24 03:13:18,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:18,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382550813] [2024-10-24 03:13:18,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:18,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:18,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 03:13:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:18,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 03:13:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:18,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 03:13:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:18,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 03:13:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:18,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 03:13:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:18,448 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-24 03:13:18,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:18,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382550813] [2024-10-24 03:13:18,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382550813] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:18,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926368803] [2024-10-24 03:13:18,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:18,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:18,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:18,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:18,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 03:13:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:18,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-24 03:13:18,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:18,828 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-24 03:13:18,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:13:18,944 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 10 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 03:13:18,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926368803] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:13:18,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 03:13:18,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 10] total 15 [2024-10-24 03:13:18,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408408241] [2024-10-24 03:13:18,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 03:13:18,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 03:13:18,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:18,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 03:13:18,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-24 03:13:18,947 INFO L87 Difference]: Start difference. First operand 1224 states and 1818 transitions. Second operand has 15 states, 15 states have (on average 16.933333333333334) internal successors, (254), 15 states have internal predecessors, (254), 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) [2024-10-24 03:13:19,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:19,103 INFO L93 Difference]: Finished difference Result 2456 states and 3652 transitions. [2024-10-24 03:13:19,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:13:19,103 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 16.933333333333334) internal successors, (254), 15 states have internal predecessors, (254), 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 258 [2024-10-24 03:13:19,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:19,107 INFO L225 Difference]: With dead ends: 2456 [2024-10-24 03:13:19,107 INFO L226 Difference]: Without dead ends: 1249 [2024-10-24 03:13:19,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-10-24 03:13:19,109 INFO L432 NwaCegarLoop]: 1113 mSDtfsCounter, 100 mSDsluCounter, 9971 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 11084 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:19,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 11084 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:13:19,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2024-10-24 03:13:19,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1249. [2024-10-24 03:13:19,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1232 states have (on average 1.4797077922077921) internal successors, (1823), 1232 states have internal predecessors, (1823), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 03:13:19,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1853 transitions. [2024-10-24 03:13:19,128 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1853 transitions. Word has length 258 [2024-10-24 03:13:19,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:19,129 INFO L471 AbstractCegarLoop]: Abstraction has 1249 states and 1853 transitions. [2024-10-24 03:13:19,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 16.933333333333334) internal successors, (254), 15 states have internal predecessors, (254), 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) [2024-10-24 03:13:19,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1853 transitions. [2024-10-24 03:13:19,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-10-24 03:13:19,131 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:19,131 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] [2024-10-24 03:13:19,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 03:13:19,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:19,332 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:19,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:19,332 INFO L85 PathProgramCache]: Analyzing trace with hash 253401874, now seen corresponding path program 2 times [2024-10-24 03:13:19,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:19,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476664703] [2024-10-24 03:13:19,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:19,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:19,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 03:13:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:19,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:19,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 03:13:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:19,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 03:13:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:19,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:13:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:19,689 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-10-24 03:13:19,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:19,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476664703] [2024-10-24 03:13:19,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476664703] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:19,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762567034] [2024-10-24 03:13:19,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 03:13:19,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:19,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:19,691 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:19,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 03:13:20,037 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 03:13:20,037 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 03:13:20,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 03:13:20,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:20,380 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-10-24 03:13:20,380 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:13:20,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762567034] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:13:20,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:13:20,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-10-24 03:13:20,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503624089] [2024-10-24 03:13:20,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:20,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:13:20,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:20,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:13:20,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:13:20,382 INFO L87 Difference]: Start difference. First operand 1249 states and 1853 transitions. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 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) [2024-10-24 03:13:20,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:20,510 INFO L93 Difference]: Finished difference Result 1911 states and 2837 transitions. [2024-10-24 03:13:20,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:13:20,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 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 273 [2024-10-24 03:13:20,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:20,516 INFO L225 Difference]: With dead ends: 1911 [2024-10-24 03:13:20,516 INFO L226 Difference]: Without dead ends: 1249 [2024-10-24 03:13:20,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:13:20,519 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 976 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:20,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 1990 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:13:20,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2024-10-24 03:13:20,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1249. [2024-10-24 03:13:20,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1232 states have (on average 1.4748376623376624) internal successors, (1817), 1232 states have internal predecessors, (1817), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 03:13:20,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1847 transitions. [2024-10-24 03:13:20,541 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1847 transitions. Word has length 273 [2024-10-24 03:13:20,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:20,542 INFO L471 AbstractCegarLoop]: Abstraction has 1249 states and 1847 transitions. [2024-10-24 03:13:20,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 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) [2024-10-24 03:13:20,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1847 transitions. [2024-10-24 03:13:20,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-10-24 03:13:20,544 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:20,544 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] [2024-10-24 03:13:20,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 03:13:20,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:20,745 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:20,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:20,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1054429291, now seen corresponding path program 1 times [2024-10-24 03:13:20,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:20,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079839381] [2024-10-24 03:13:20,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:20,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:21,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 03:13:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:21,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:21,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 03:13:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:21,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 03:13:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:21,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:13:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:21,103 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-10-24 03:13:21,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:21,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079839381] [2024-10-24 03:13:21,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079839381] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:21,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918716224] [2024-10-24 03:13:21,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:21,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:21,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:21,105 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:21,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 03:13:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:21,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-24 03:13:21,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:21,793 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-24 03:13:21,793 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:13:21,938 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-10-24 03:13:21,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918716224] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:21,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 03:13:21,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 14] total 22 [2024-10-24 03:13:21,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640385834] [2024-10-24 03:13:21,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:21,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:13:21,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:21,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:13:21,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-10-24 03:13:21,939 INFO L87 Difference]: Start difference. First operand 1249 states and 1847 transitions. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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) [2024-10-24 03:13:22,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:22,118 INFO L93 Difference]: Finished difference Result 1898 states and 2812 transitions. [2024-10-24 03:13:22,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:13:22,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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 275 [2024-10-24 03:13:22,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:22,122 INFO L225 Difference]: With dead ends: 1898 [2024-10-24 03:13:22,122 INFO L226 Difference]: Without dead ends: 1249 [2024-10-24 03:13:22,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2024-10-24 03:13:22,124 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 1069 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:22,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 2006 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:13:22,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2024-10-24 03:13:22,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1249. [2024-10-24 03:13:22,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1232 states have (on average 1.474025974025974) internal successors, (1816), 1232 states have internal predecessors, (1816), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 03:13:22,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1846 transitions. [2024-10-24 03:13:22,143 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1846 transitions. Word has length 275 [2024-10-24 03:13:22,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:22,144 INFO L471 AbstractCegarLoop]: Abstraction has 1249 states and 1846 transitions. [2024-10-24 03:13:22,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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) [2024-10-24 03:13:22,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1846 transitions. [2024-10-24 03:13:22,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-10-24 03:13:22,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:22,146 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] [2024-10-24 03:13:22,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-24 03:13:22,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:22,351 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:22,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:22,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1800731861, now seen corresponding path program 1 times [2024-10-24 03:13:22,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:22,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941611588] [2024-10-24 03:13:22,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:22,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:22,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 03:13:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:22,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:22,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 03:13:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:22,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 03:13:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:22,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:13:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-10-24 03:13:22,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:22,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941611588] [2024-10-24 03:13:22,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941611588] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:22,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373222181] [2024-10-24 03:13:22,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:22,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:22,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:22,854 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:22,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 03:13:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:23,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 1175 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-24 03:13:23,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:23,298 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-10-24 03:13:23,299 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:13:23,378 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-10-24 03:13:23,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373222181] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:13:23,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 03:13:23,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 7] total 18 [2024-10-24 03:13:23,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016915992] [2024-10-24 03:13:23,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 03:13:23,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 03:13:23,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:23,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 03:13:23,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-10-24 03:13:23,381 INFO L87 Difference]: Start difference. First operand 1249 states and 1846 transitions. Second operand has 18 states, 18 states have (on average 14.777777777777779) internal successors, (266), 18 states have internal predecessors, (266), 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) [2024-10-24 03:13:23,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:23,547 INFO L93 Difference]: Finished difference Result 2434 states and 3612 transitions. [2024-10-24 03:13:23,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:13:23,547 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 14.777777777777779) internal successors, (266), 18 states have internal predecessors, (266), 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 276 [2024-10-24 03:13:23,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:23,550 INFO L225 Difference]: With dead ends: 2434 [2024-10-24 03:13:23,550 INFO L226 Difference]: Without dead ends: 1309 [2024-10-24 03:13:23,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-10-24 03:13:23,552 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 128 mSDsluCounter, 11270 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 12404 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:23,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 12404 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:13:23,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2024-10-24 03:13:23,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1309. [2024-10-24 03:13:23,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1309 states, 1292 states have (on average 1.4705882352941178) internal successors, (1900), 1292 states have internal predecessors, (1900), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 03:13:23,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1930 transitions. [2024-10-24 03:13:23,572 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1930 transitions. Word has length 276 [2024-10-24 03:13:23,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:23,572 INFO L471 AbstractCegarLoop]: Abstraction has 1309 states and 1930 transitions. [2024-10-24 03:13:23,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.777777777777779) internal successors, (266), 18 states have internal predecessors, (266), 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) [2024-10-24 03:13:23,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1930 transitions. [2024-10-24 03:13:23,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2024-10-24 03:13:23,574 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:23,574 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] [2024-10-24 03:13:23,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-24 03:13:23,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-24 03:13:23,775 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:23,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:23,776 INFO L85 PathProgramCache]: Analyzing trace with hash 320668309, now seen corresponding path program 2 times [2024-10-24 03:13:23,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:23,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969492851] [2024-10-24 03:13:23,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:23,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:24,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:24,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:24,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-24 03:13:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:24,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 03:13:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:24,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-24 03:13:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:24,296 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-24 03:13:24,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:24,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969492851] [2024-10-24 03:13:24,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969492851] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:13:24,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:13:24,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:13:24,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929813044] [2024-10-24 03:13:24,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:24,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:13:24,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:24,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:13:24,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:13:24,298 INFO L87 Difference]: Start difference. First operand 1309 states and 1930 transitions. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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) [2024-10-24 03:13:24,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:24,336 INFO L93 Difference]: Finished difference Result 1313 states and 1934 transitions. [2024-10-24 03:13:24,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:13:24,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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 288 [2024-10-24 03:13:24,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:24,340 INFO L225 Difference]: With dead ends: 1313 [2024-10-24 03:13:24,340 INFO L226 Difference]: Without dead ends: 1311 [2024-10-24 03:13:24,340 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 [2024-10-24 03:13:24,341 INFO L432 NwaCegarLoop]: 1094 mSDtfsCounter, 0 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3277 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 [2024-10-24 03:13:24,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3277 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:13:24,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2024-10-24 03:13:24,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1311. [2024-10-24 03:13:24,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 1294 states have (on average 1.4698608964451314) internal successors, (1902), 1294 states have internal predecessors, (1902), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 03:13:24,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1932 transitions. [2024-10-24 03:13:24,362 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1932 transitions. Word has length 288 [2024-10-24 03:13:24,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:24,363 INFO L471 AbstractCegarLoop]: Abstraction has 1311 states and 1932 transitions. [2024-10-24 03:13:24,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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) [2024-10-24 03:13:24,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1932 transitions. [2024-10-24 03:13:24,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-10-24 03:13:24,365 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:24,365 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] [2024-10-24 03:13:24,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 03:13:24,365 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:24,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:24,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1352479499, now seen corresponding path program 1 times [2024-10-24 03:13:24,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:24,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881906406] [2024-10-24 03:13:24,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:24,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:24,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:24,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:24,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-24 03:13:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:24,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 03:13:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:24,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-24 03:13:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-24 03:13:24,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:24,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881906406] [2024-10-24 03:13:24,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881906406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:13:24,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:13:24,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:13:24,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129072135] [2024-10-24 03:13:24,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:24,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:13:24,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:24,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:13:24,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:13:24,699 INFO L87 Difference]: Start difference. First operand 1311 states and 1932 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) [2024-10-24 03:13:24,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:24,742 INFO L93 Difference]: Finished difference Result 1964 states and 2901 transitions. [2024-10-24 03:13:24,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:13:24,742 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 289 [2024-10-24 03:13:24,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:24,746 INFO L225 Difference]: With dead ends: 1964 [2024-10-24 03:13:24,746 INFO L226 Difference]: Without dead ends: 1313 [2024-10-24 03:13:24,747 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 [2024-10-24 03:13:24,748 INFO L432 NwaCegarLoop]: 1094 mSDtfsCounter, 0 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3274 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 [2024-10-24 03:13:24,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3274 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:13:24,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2024-10-24 03:13:24,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1313. [2024-10-24 03:13:24,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1313 states, 1296 states have (on average 1.4691358024691359) internal successors, (1904), 1296 states have internal predecessors, (1904), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 03:13:24,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1934 transitions. [2024-10-24 03:13:24,772 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1934 transitions. Word has length 289 [2024-10-24 03:13:24,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:24,773 INFO L471 AbstractCegarLoop]: Abstraction has 1313 states and 1934 transitions. [2024-10-24 03:13:24,773 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) [2024-10-24 03:13:24,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1934 transitions. [2024-10-24 03:13:24,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-10-24 03:13:24,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:24,776 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] [2024-10-24 03:13:24,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 03:13:24,776 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:24,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:24,776 INFO L85 PathProgramCache]: Analyzing trace with hash -2120773074, now seen corresponding path program 1 times [2024-10-24 03:13:24,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:24,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140510391] [2024-10-24 03:13:24,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:24,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:25,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:25,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:25,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-24 03:13:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:25,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 03:13:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:25,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-24 03:13:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:25,278 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-24 03:13:25,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:25,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140510391] [2024-10-24 03:13:25,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140510391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:13:25,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:13:25,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:13:25,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422814984] [2024-10-24 03:13:25,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:25,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:13:25,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:25,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:13:25,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:13:25,280 INFO L87 Difference]: Start difference. First operand 1313 states and 1934 transitions. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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) [2024-10-24 03:13:25,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:25,444 INFO L93 Difference]: Finished difference Result 1966 states and 2902 transitions. [2024-10-24 03:13:25,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:13:25,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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 290 [2024-10-24 03:13:25,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:25,448 INFO L225 Difference]: With dead ends: 1966 [2024-10-24 03:13:25,448 INFO L226 Difference]: Without dead ends: 1313 [2024-10-24 03:13:25,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:13:25,450 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 951 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:25,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 1998 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:13:25,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2024-10-24 03:13:25,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1313. [2024-10-24 03:13:25,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1313 states, 1296 states have (on average 1.4683641975308641) internal successors, (1903), 1296 states have internal predecessors, (1903), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 03:13:25,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1933 transitions. [2024-10-24 03:13:25,475 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1933 transitions. Word has length 290 [2024-10-24 03:13:25,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:25,475 INFO L471 AbstractCegarLoop]: Abstraction has 1313 states and 1933 transitions. [2024-10-24 03:13:25,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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) [2024-10-24 03:13:25,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1933 transitions. [2024-10-24 03:13:25,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-10-24 03:13:25,478 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:25,479 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] [2024-10-24 03:13:25,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 03:13:25,479 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:25,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:25,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1070794699, now seen corresponding path program 1 times [2024-10-24 03:13:25,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:25,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439060098] [2024-10-24 03:13:25,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:25,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:26,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:26,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:26,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-24 03:13:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:26,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 03:13:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:26,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-24 03:13:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:26,532 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-24 03:13:26,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:26,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439060098] [2024-10-24 03:13:26,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439060098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:13:26,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:13:26,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 03:13:26,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906139904] [2024-10-24 03:13:26,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:26,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 03:13:26,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:26,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 03:13:26,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:13:26,534 INFO L87 Difference]: Start difference. First operand 1313 states and 1933 transitions. Second operand has 10 states, 10 states have (on average 22.7) internal successors, (227), 10 states have internal predecessors, (227), 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) [2024-10-24 03:13:27,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:27,137 INFO L93 Difference]: Finished difference Result 2842 states and 4194 transitions. [2024-10-24 03:13:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 03:13:27,138 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 22.7) internal successors, (227), 10 states have internal predecessors, (227), 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 291 [2024-10-24 03:13:27,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:27,142 INFO L225 Difference]: With dead ends: 2842 [2024-10-24 03:13:27,142 INFO L226 Difference]: Without dead ends: 1361 [2024-10-24 03:13:27,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:13:27,144 INFO L432 NwaCegarLoop]: 1747 mSDtfsCounter, 741 mSDsluCounter, 13012 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 14759 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:27,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 14759 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:13:27,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2024-10-24 03:13:27,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1349. [2024-10-24 03:13:27,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1332 states have (on average 1.4692192192192193) internal successors, (1957), 1332 states have internal predecessors, (1957), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 03:13:27,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 1987 transitions. [2024-10-24 03:13:27,170 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 1987 transitions. Word has length 291 [2024-10-24 03:13:27,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:27,170 INFO L471 AbstractCegarLoop]: Abstraction has 1349 states and 1987 transitions. [2024-10-24 03:13:27,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.7) internal successors, (227), 10 states have internal predecessors, (227), 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) [2024-10-24 03:13:27,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1987 transitions. [2024-10-24 03:13:27,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-10-24 03:13:27,172 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:27,172 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] [2024-10-24 03:13:27,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 03:13:27,173 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:27,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:27,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1302183805, now seen corresponding path program 1 times [2024-10-24 03:13:27,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:27,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16840106] [2024-10-24 03:13:27,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:27,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:28,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:28,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:28,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:28,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:28,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-24 03:13:28,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:28,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16840106] [2024-10-24 03:13:28,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16840106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:13:28,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:13:28,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:13:28,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455223320] [2024-10-24 03:13:28,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:28,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:13:28,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:28,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:13:28,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:13:28,268 INFO L87 Difference]: Start difference. First operand 1349 states and 1987 transitions. Second operand has 5 states, 5 states have (on average 45.6) internal successors, (228), 5 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) [2024-10-24 03:13:28,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:28,329 INFO L93 Difference]: Finished difference Result 2170 states and 3204 transitions. [2024-10-24 03:13:28,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:13:28,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.6) internal successors, (228), 5 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 292 [2024-10-24 03:13:28,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:28,333 INFO L225 Difference]: With dead ends: 2170 [2024-10-24 03:13:28,333 INFO L226 Difference]: Without dead ends: 1505 [2024-10-24 03:13:28,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:13:28,335 INFO L432 NwaCegarLoop]: 1089 mSDtfsCounter, 150 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 4350 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:28,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 4350 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:13:28,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2024-10-24 03:13:28,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1503. [2024-10-24 03:13:28,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1486 states have (on average 1.4703903095558546) internal successors, (2185), 1486 states have internal predecessors, (2185), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 03:13:28,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 2215 transitions. [2024-10-24 03:13:28,361 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 2215 transitions. Word has length 292 [2024-10-24 03:13:28,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:28,362 INFO L471 AbstractCegarLoop]: Abstraction has 1503 states and 2215 transitions. [2024-10-24 03:13:28,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.6) internal successors, (228), 5 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) [2024-10-24 03:13:28,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 2215 transitions. [2024-10-24 03:13:28,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-10-24 03:13:28,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:28,364 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] [2024-10-24 03:13:28,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 03:13:28,364 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:28,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:28,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1673086845, now seen corresponding path program 1 times [2024-10-24 03:13:28,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:28,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349896244] [2024-10-24 03:13:28,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:28,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:29,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:29,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:29,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:29,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:29,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-10-24 03:13:29,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:29,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349896244] [2024-10-24 03:13:29,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349896244] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:13:29,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:13:29,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:13:29,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230360231] [2024-10-24 03:13:29,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:29,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:13:29,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:29,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:13:29,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:13:29,551 INFO L87 Difference]: Start difference. First operand 1503 states and 2215 transitions. Second operand has 7 states, 7 states have (on average 32.714285714285715) internal successors, (229), 7 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) [2024-10-24 03:13:29,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:29,699 INFO L93 Difference]: Finished difference Result 2808 states and 4150 transitions. [2024-10-24 03:13:29,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 03:13:29,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.714285714285715) internal successors, (229), 7 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 [2024-10-24 03:13:29,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:29,705 INFO L225 Difference]: With dead ends: 2808 [2024-10-24 03:13:29,705 INFO L226 Difference]: Without dead ends: 1989 [2024-10-24 03:13:29,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:13:29,707 INFO L432 NwaCegarLoop]: 1078 mSDtfsCounter, 1801 mSDsluCounter, 4303 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 5381 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:29,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1806 Valid, 5381 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:13:29,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1989 states. [2024-10-24 03:13:29,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1989 to 1989. [2024-10-24 03:13:29,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1967 states have (on average 1.4722928317234367) internal successors, (2896), 1967 states have internal predecessors, (2896), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:13:29,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2936 transitions. [2024-10-24 03:13:29,741 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2936 transitions. Word has length 293 [2024-10-24 03:13:29,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:29,741 INFO L471 AbstractCegarLoop]: Abstraction has 1989 states and 2936 transitions. [2024-10-24 03:13:29,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.714285714285715) internal successors, (229), 7 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) [2024-10-24 03:13:29,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2936 transitions. [2024-10-24 03:13:29,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2024-10-24 03:13:29,745 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:29,746 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:13:29,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 03:13:29,746 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:29,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:29,746 INFO L85 PathProgramCache]: Analyzing trace with hash -119792890, now seen corresponding path program 1 times [2024-10-24 03:13:29,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:29,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625955300] [2024-10-24 03:13:29,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:29,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:30,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:30,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:30,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:30,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:30,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:30,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2024-10-24 03:13:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:30,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2024-10-24 03:13:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:30,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2024-10-24 03:13:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:30,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2024-10-24 03:13:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:30,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2024-10-24 03:13:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:30,429 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 03:13:30,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:30,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625955300] [2024-10-24 03:13:30,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625955300] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:13:30,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:13:30,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 03:13:30,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608990446] [2024-10-24 03:13:30,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:30,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 03:13:30,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:30,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 03:13:30,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 03:13:30,432 INFO L87 Difference]: Start difference. First operand 1989 states and 2936 transitions. Second operand has 3 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 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) [2024-10-24 03:13:30,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:30,478 INFO L93 Difference]: Finished difference Result 2809 states and 4151 transitions. [2024-10-24 03:13:30,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 03:13:30,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 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 652 [2024-10-24 03:13:30,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:30,486 INFO L225 Difference]: With dead ends: 2809 [2024-10-24 03:13:30,486 INFO L226 Difference]: Without dead ends: 1990 [2024-10-24 03:13:30,487 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 [2024-10-24 03:13:30,488 INFO L432 NwaCegarLoop]: 1095 mSDtfsCounter, 0 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2187 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 [2024-10-24 03:13:30,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2187 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:13:30,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2024-10-24 03:13:30,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1990. [2024-10-24 03:13:30,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1968 states have (on average 1.4720528455284554) internal successors, (2897), 1968 states have internal predecessors, (2897), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:13:30,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2937 transitions. [2024-10-24 03:13:30,537 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2937 transitions. Word has length 652 [2024-10-24 03:13:30,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:30,538 INFO L471 AbstractCegarLoop]: Abstraction has 1990 states and 2937 transitions. [2024-10-24 03:13:30,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 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) [2024-10-24 03:13:30,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2937 transitions. [2024-10-24 03:13:30,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2024-10-24 03:13:30,546 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:30,546 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:13:30,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 03:13:30,546 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:30,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:30,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1027423241, now seen corresponding path program 1 times [2024-10-24 03:13:30,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:30,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579656269] [2024-10-24 03:13:30,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:30,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:31,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:31,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:31,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:31,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:31,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:31,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2024-10-24 03:13:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:31,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2024-10-24 03:13:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:31,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2024-10-24 03:13:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:31,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2024-10-24 03:13:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:31,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2024-10-24 03:13:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:31,321 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 176 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 03:13:31,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:31,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579656269] [2024-10-24 03:13:31,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579656269] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:31,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242278819] [2024-10-24 03:13:31,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:31,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:31,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:31,326 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:31,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 03:13:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:32,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 3279 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-24 03:13:32,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:32,709 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 276 proven. 92 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-10-24 03:13:32,710 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:13:33,238 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-24 03:13:33,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242278819] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:33,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 03:13:33,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-10-24 03:13:33,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165335264] [2024-10-24 03:13:33,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:33,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:13:33,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:33,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:13:33,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-10-24 03:13:33,241 INFO L87 Difference]: Start difference. First operand 1990 states and 2937 transitions. Second operand has 5 states, 5 states have (on average 112.8) internal successors, (564), 5 states have internal predecessors, (564), 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) [2024-10-24 03:13:33,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:33,402 INFO L93 Difference]: Finished difference Result 2810 states and 4151 transitions. [2024-10-24 03:13:33,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:13:33,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 112.8) internal successors, (564), 5 states have internal predecessors, (564), 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 653 [2024-10-24 03:13:33,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:33,408 INFO L225 Difference]: With dead ends: 2810 [2024-10-24 03:13:33,408 INFO L226 Difference]: Without dead ends: 1990 [2024-10-24 03:13:33,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1329 GetRequests, 1311 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-24 03:13:33,409 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 917 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:33,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 2006 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:13:33,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2024-10-24 03:13:33,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1990. [2024-10-24 03:13:33,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1968 states have (on average 1.4715447154471544) internal successors, (2896), 1968 states have internal predecessors, (2896), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:13:33,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2936 transitions. [2024-10-24 03:13:33,440 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2936 transitions. Word has length 653 [2024-10-24 03:13:33,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:33,441 INFO L471 AbstractCegarLoop]: Abstraction has 1990 states and 2936 transitions. [2024-10-24 03:13:33,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 112.8) internal successors, (564), 5 states have internal predecessors, (564), 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) [2024-10-24 03:13:33,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2936 transitions. [2024-10-24 03:13:33,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2024-10-24 03:13:33,445 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:33,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:13:33,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-24 03:13:33,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-24 03:13:33,647 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:33,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:33,647 INFO L85 PathProgramCache]: Analyzing trace with hash 656263280, now seen corresponding path program 1 times [2024-10-24 03:13:33,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:33,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882909616] [2024-10-24 03:13:33,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:33,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:34,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:34,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:34,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:34,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:34,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:34,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2024-10-24 03:13:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:34,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2024-10-24 03:13:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:34,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2024-10-24 03:13:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:34,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2024-10-24 03:13:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:34,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 529 [2024-10-24 03:13:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:34,373 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 176 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 03:13:34,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:34,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882909616] [2024-10-24 03:13:34,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882909616] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:34,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870938343] [2024-10-24 03:13:34,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:34,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:34,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:34,375 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:34,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-24 03:13:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:35,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 3282 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-24 03:13:35,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:35,796 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 276 proven. 92 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-10-24 03:13:35,796 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:13:36,316 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-24 03:13:36,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870938343] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:36,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 03:13:36,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-10-24 03:13:36,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603392297] [2024-10-24 03:13:36,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:36,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:13:36,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:36,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:13:36,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-10-24 03:13:36,319 INFO L87 Difference]: Start difference. First operand 1990 states and 2936 transitions. Second operand has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 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) [2024-10-24 03:13:36,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:36,471 INFO L93 Difference]: Finished difference Result 2810 states and 4149 transitions. [2024-10-24 03:13:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:13:36,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 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 654 [2024-10-24 03:13:36,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:36,476 INFO L225 Difference]: With dead ends: 2810 [2024-10-24 03:13:36,476 INFO L226 Difference]: Without dead ends: 1990 [2024-10-24 03:13:36,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1331 GetRequests, 1313 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-24 03:13:36,478 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 1807 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1812 SdHoareTripleChecker+Valid, 1998 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 [2024-10-24 03:13:36,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1812 Valid, 1998 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:13:36,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2024-10-24 03:13:36,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1990. [2024-10-24 03:13:36,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1968 states have (on average 1.4710365853658536) internal successors, (2895), 1968 states have internal predecessors, (2895), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:13:36,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2935 transitions. [2024-10-24 03:13:36,508 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2935 transitions. Word has length 654 [2024-10-24 03:13:36,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:36,509 INFO L471 AbstractCegarLoop]: Abstraction has 1990 states and 2935 transitions. [2024-10-24 03:13:36,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 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) [2024-10-24 03:13:36,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2935 transitions. [2024-10-24 03:13:36,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2024-10-24 03:13:36,513 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:36,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:13:36,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-24 03:13:36,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:36,714 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:36,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:36,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1089953236, now seen corresponding path program 1 times [2024-10-24 03:13:36,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:36,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349767539] [2024-10-24 03:13:36,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:36,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:37,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:37,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:37,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:37,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:37,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:37,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2024-10-24 03:13:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:37,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2024-10-24 03:13:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:37,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2024-10-24 03:13:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:37,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2024-10-24 03:13:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:37,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2024-10-24 03:13:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:37,490 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 176 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 03:13:37,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:37,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349767539] [2024-10-24 03:13:37,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349767539] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:37,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778805588] [2024-10-24 03:13:37,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:37,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:37,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:37,493 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:37,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-24 03:13:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:38,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 3285 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-24 03:13:38,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:38,979 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 276 proven. 92 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-10-24 03:13:38,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:13:39,503 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-24 03:13:39,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778805588] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:39,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 03:13:39,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-10-24 03:13:39,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128607093] [2024-10-24 03:13:39,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:39,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:13:39,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:39,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:13:39,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-10-24 03:13:39,505 INFO L87 Difference]: Start difference. First operand 1990 states and 2935 transitions. Second operand has 5 states, 5 states have (on average 113.2) internal successors, (566), 5 states have internal predecessors, (566), 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) [2024-10-24 03:13:39,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:39,673 INFO L93 Difference]: Finished difference Result 2810 states and 4147 transitions. [2024-10-24 03:13:39,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:13:39,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 113.2) internal successors, (566), 5 states have internal predecessors, (566), 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 655 [2024-10-24 03:13:39,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:39,678 INFO L225 Difference]: With dead ends: 2810 [2024-10-24 03:13:39,678 INFO L226 Difference]: Without dead ends: 1990 [2024-10-24 03:13:39,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1333 GetRequests, 1315 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-24 03:13:39,682 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 1795 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1800 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:39,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1800 Valid, 1998 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:13:39,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2024-10-24 03:13:39,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1990. [2024-10-24 03:13:39,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1968 states have (on average 1.4705284552845528) internal successors, (2894), 1968 states have internal predecessors, (2894), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:13:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2934 transitions. [2024-10-24 03:13:39,712 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2934 transitions. Word has length 655 [2024-10-24 03:13:39,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:39,712 INFO L471 AbstractCegarLoop]: Abstraction has 1990 states and 2934 transitions. [2024-10-24 03:13:39,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.2) internal successors, (566), 5 states have internal predecessors, (566), 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) [2024-10-24 03:13:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2934 transitions. [2024-10-24 03:13:39,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2024-10-24 03:13:39,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:39,718 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:13:39,738 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-24 03:13:39,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:39,919 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:39,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:39,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1683014274, now seen corresponding path program 1 times [2024-10-24 03:13:39,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:39,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708679408] [2024-10-24 03:13:39,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:39,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:40,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:40,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:40,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:40,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:40,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:40,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-10-24 03:13:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:40,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-10-24 03:13:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:40,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2024-10-24 03:13:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:40,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2024-10-24 03:13:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:40,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2024-10-24 03:13:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:40,556 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 176 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 03:13:40,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:40,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708679408] [2024-10-24 03:13:40,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708679408] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:40,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018298826] [2024-10-24 03:13:40,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:40,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:40,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:40,558 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:40,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-24 03:13:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:41,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 3288 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-24 03:13:41,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:42,036 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 276 proven. 92 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-10-24 03:13:42,036 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:13:42,608 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-24 03:13:42,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018298826] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:42,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 03:13:42,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 14] total 19 [2024-10-24 03:13:42,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209811493] [2024-10-24 03:13:42,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:42,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:13:42,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:42,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:13:42,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-10-24 03:13:42,611 INFO L87 Difference]: Start difference. First operand 1990 states and 2934 transitions. Second operand has 5 states, 5 states have (on average 113.4) internal successors, (567), 5 states have internal predecessors, (567), 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) [2024-10-24 03:13:42,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:42,793 INFO L93 Difference]: Finished difference Result 2810 states and 4145 transitions. [2024-10-24 03:13:42,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:13:42,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 113.4) internal successors, (567), 5 states have internal predecessors, (567), 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 656 [2024-10-24 03:13:42,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:42,797 INFO L225 Difference]: With dead ends: 2810 [2024-10-24 03:13:42,797 INFO L226 Difference]: Without dead ends: 1990 [2024-10-24 03:13:42,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1335 GetRequests, 1317 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-24 03:13:42,799 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 1771 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:42,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 1998 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:13:42,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2024-10-24 03:13:42,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1990. [2024-10-24 03:13:42,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1968 states have (on average 1.470020325203252) internal successors, (2893), 1968 states have internal predecessors, (2893), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:13:42,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2933 transitions. [2024-10-24 03:13:42,826 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2933 transitions. Word has length 656 [2024-10-24 03:13:42,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:42,826 INFO L471 AbstractCegarLoop]: Abstraction has 1990 states and 2933 transitions. [2024-10-24 03:13:42,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.4) internal successors, (567), 5 states have internal predecessors, (567), 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) [2024-10-24 03:13:42,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2933 transitions. [2024-10-24 03:13:42,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2024-10-24 03:13:42,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:42,831 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:13:42,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-24 03:13:43,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-24 03:13:43,032 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:43,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:43,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1496578321, now seen corresponding path program 1 times [2024-10-24 03:13:43,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:43,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183923217] [2024-10-24 03:13:43,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:43,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:43,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:43,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:43,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:43,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:43,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:43,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2024-10-24 03:13:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:43,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2024-10-24 03:13:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:43,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2024-10-24 03:13:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:43,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2024-10-24 03:13:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:43,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2024-10-24 03:13:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:43,656 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 176 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 03:13:43,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:43,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183923217] [2024-10-24 03:13:43,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183923217] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:43,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820412106] [2024-10-24 03:13:43,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:43,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:43,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:43,659 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:43,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-24 03:13:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:44,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 3291 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 03:13:44,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:45,029 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-10-24 03:13:45,029 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:13:45,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820412106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:13:45,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:13:45,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-24 03:13:45,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667285733] [2024-10-24 03:13:45,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:45,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:13:45,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:45,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:13:45,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:13:45,032 INFO L87 Difference]: Start difference. First operand 1990 states and 2933 transitions. Second operand has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 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) [2024-10-24 03:13:45,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:45,330 INFO L93 Difference]: Finished difference Result 2809 states and 4142 transitions. [2024-10-24 03:13:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:13:45,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 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 657 [2024-10-24 03:13:45,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:45,335 INFO L225 Difference]: With dead ends: 2809 [2024-10-24 03:13:45,335 INFO L226 Difference]: Without dead ends: 1989 [2024-10-24 03:13:45,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 681 GetRequests, 676 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:13:45,336 INFO L432 NwaCegarLoop]: 790 mSDtfsCounter, 829 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 1582 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 [2024-10-24 03:13:45,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 1582 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:13:45,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1989 states. [2024-10-24 03:13:45,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1989 to 1989. [2024-10-24 03:13:45,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1967 states have (on average 1.4692425012709711) internal successors, (2890), 1967 states have internal predecessors, (2890), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:13:45,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2930 transitions. [2024-10-24 03:13:45,363 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2930 transitions. Word has length 657 [2024-10-24 03:13:45,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:45,363 INFO L471 AbstractCegarLoop]: Abstraction has 1989 states and 2930 transitions. [2024-10-24 03:13:45,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 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) [2024-10-24 03:13:45,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2930 transitions. [2024-10-24 03:13:45,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2024-10-24 03:13:45,368 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:45,368 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:13:45,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-24 03:13:45,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-24 03:13:45,570 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:45,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:45,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1882603554, now seen corresponding path program 1 times [2024-10-24 03:13:45,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:45,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405542418] [2024-10-24 03:13:45,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:45,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:46,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:46,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:46,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:46,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:46,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:46,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2024-10-24 03:13:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:46,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2024-10-24 03:13:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:46,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-10-24 03:13:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:46,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2024-10-24 03:13:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:46,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2024-10-24 03:13:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:46,192 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 176 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 03:13:46,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:46,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405542418] [2024-10-24 03:13:46,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405542418] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:46,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504314145] [2024-10-24 03:13:46,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:46,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:46,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:46,194 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:46,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-24 03:13:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:47,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 3294 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 03:13:47,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:47,674 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-10-24 03:13:47,674 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:13:47,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504314145] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:13:47,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:13:47,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-24 03:13:47,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376107824] [2024-10-24 03:13:47,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:47,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:13:47,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:47,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:13:47,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:13:47,677 INFO L87 Difference]: Start difference. First operand 1989 states and 2930 transitions. Second operand has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2024-10-24 03:13:48,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:48,022 INFO L93 Difference]: Finished difference Result 2807 states and 4136 transitions. [2024-10-24 03:13:48,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:13:48,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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 658 [2024-10-24 03:13:48,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:48,026 INFO L225 Difference]: With dead ends: 2807 [2024-10-24 03:13:48,026 INFO L226 Difference]: Without dead ends: 1988 [2024-10-24 03:13:48,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 677 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:13:48,027 INFO L432 NwaCegarLoop]: 790 mSDtfsCounter, 821 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:48,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 1582 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:13:48,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2024-10-24 03:13:48,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1988. [2024-10-24 03:13:48,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1966 states have (on average 1.4684638860630723) internal successors, (2887), 1966 states have internal predecessors, (2887), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:13:48,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2927 transitions. [2024-10-24 03:13:48,066 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2927 transitions. Word has length 658 [2024-10-24 03:13:48,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:48,066 INFO L471 AbstractCegarLoop]: Abstraction has 1988 states and 2927 transitions. [2024-10-24 03:13:48,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2024-10-24 03:13:48,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2927 transitions. [2024-10-24 03:13:48,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2024-10-24 03:13:48,074 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:48,075 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:13:48,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-24 03:13:48,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:48,275 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:48,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:48,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1862970205, now seen corresponding path program 1 times [2024-10-24 03:13:48,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:48,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21883362] [2024-10-24 03:13:48,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:48,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:48,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:48,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:48,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:48,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:48,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:48,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2024-10-24 03:13:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:48,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-10-24 03:13:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:48,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2024-10-24 03:13:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:48,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2024-10-24 03:13:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:48,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2024-10-24 03:13:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:48,922 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 176 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 03:13:48,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:48,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21883362] [2024-10-24 03:13:48,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21883362] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:48,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166756143] [2024-10-24 03:13:48,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:48,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:48,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:48,924 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:48,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-24 03:13:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:49,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 3297 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 03:13:49,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:50,409 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-10-24 03:13:50,409 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:13:50,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166756143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:13:50,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:13:50,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-24 03:13:50,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635871957] [2024-10-24 03:13:50,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:50,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:13:50,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:50,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:13:50,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:13:50,411 INFO L87 Difference]: Start difference. First operand 1988 states and 2927 transitions. Second operand has 4 states, 4 states have (on average 143.25) internal successors, (573), 4 states have internal predecessors, (573), 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) [2024-10-24 03:13:50,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:50,722 INFO L93 Difference]: Finished difference Result 2805 states and 4130 transitions. [2024-10-24 03:13:50,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:13:50,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 143.25) internal successors, (573), 4 states have internal predecessors, (573), 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 659 [2024-10-24 03:13:50,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:50,725 INFO L225 Difference]: With dead ends: 2805 [2024-10-24 03:13:50,725 INFO L226 Difference]: Without dead ends: 1987 [2024-10-24 03:13:50,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:13:50,726 INFO L432 NwaCegarLoop]: 790 mSDtfsCounter, 807 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:50,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 1582 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:13:50,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2024-10-24 03:13:50,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1987. [2024-10-24 03:13:50,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1987 states, 1965 states have (on average 1.4676844783715013) internal successors, (2884), 1965 states have internal predecessors, (2884), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:13:50,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1987 states to 1987 states and 2924 transitions. [2024-10-24 03:13:50,749 INFO L78 Accepts]: Start accepts. Automaton has 1987 states and 2924 transitions. Word has length 659 [2024-10-24 03:13:50,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:50,749 INFO L471 AbstractCegarLoop]: Abstraction has 1987 states and 2924 transitions. [2024-10-24 03:13:50,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.25) internal successors, (573), 4 states have internal predecessors, (573), 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) [2024-10-24 03:13:50,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1987 states and 2924 transitions. [2024-10-24 03:13:50,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2024-10-24 03:13:50,755 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:50,755 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:13:50,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-24 03:13:50,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:50,956 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:50,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:50,957 INFO L85 PathProgramCache]: Analyzing trace with hash -2056684800, now seen corresponding path program 1 times [2024-10-24 03:13:50,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:50,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069966800] [2024-10-24 03:13:50,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:50,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:51,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:51,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:51,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:51,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:51,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:51,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2024-10-24 03:13:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:51,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2024-10-24 03:13:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:51,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2024-10-24 03:13:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:51,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2024-10-24 03:13:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:51,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2024-10-24 03:13:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:51,566 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 176 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 03:13:51,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:51,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069966800] [2024-10-24 03:13:51,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069966800] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:51,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424593806] [2024-10-24 03:13:51,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:51,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:51,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:51,571 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:51,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-24 03:13:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:52,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 3300 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 03:13:52,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:52,530 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 276 proven. 8 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2024-10-24 03:13:52,531 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:13:52,568 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-24 03:13:52,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424593806] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:52,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 03:13:52,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2024-10-24 03:13:52,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157317462] [2024-10-24 03:13:52,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:52,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 03:13:52,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:52,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 03:13:52,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:13:52,570 INFO L87 Difference]: Start difference. First operand 1987 states and 2924 transitions. Second operand has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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) [2024-10-24 03:13:52,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:52,603 INFO L93 Difference]: Finished difference Result 2805 states and 4127 transitions. [2024-10-24 03:13:52,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 03:13:52,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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 660 [2024-10-24 03:13:52,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:52,607 INFO L225 Difference]: With dead ends: 2805 [2024-10-24 03:13:52,607 INFO L226 Difference]: Without dead ends: 1988 [2024-10-24 03:13:52,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1342 GetRequests, 1337 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:13:52,608 INFO L432 NwaCegarLoop]: 1082 mSDtfsCounter, 0 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2161 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 [2024-10-24 03:13:52,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2161 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:13:52,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2024-10-24 03:13:52,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1988. [2024-10-24 03:13:52,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1966 states have (on average 1.4674465920651067) internal successors, (2885), 1966 states have internal predecessors, (2885), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:13:52,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2925 transitions. [2024-10-24 03:13:52,633 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2925 transitions. Word has length 660 [2024-10-24 03:13:52,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:52,633 INFO L471 AbstractCegarLoop]: Abstraction has 1988 states and 2925 transitions. [2024-10-24 03:13:52,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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) [2024-10-24 03:13:52,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2925 transitions. [2024-10-24 03:13:52,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2024-10-24 03:13:52,637 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:52,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:13:52,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-24 03:13:52,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-24 03:13:52,839 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:52,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:52,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1854359129, now seen corresponding path program 1 times [2024-10-24 03:13:52,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:52,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696685781] [2024-10-24 03:13:52,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:52,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:53,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:53,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:53,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:53,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:53,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:53,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2024-10-24 03:13:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:53,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2024-10-24 03:13:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:53,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2024-10-24 03:13:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:53,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2024-10-24 03:13:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:53,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2024-10-24 03:13:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:53,483 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 176 proven. 1 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-24 03:13:53,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:53,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696685781] [2024-10-24 03:13:53,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696685781] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:53,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261864885] [2024-10-24 03:13:53,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:53,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:53,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:53,485 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:53,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-24 03:13:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:54,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 3307 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 03:13:54,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:54,503 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 276 proven. 8 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2024-10-24 03:13:54,503 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:13:54,540 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-10-24 03:13:54,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261864885] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:54,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 03:13:54,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2024-10-24 03:13:54,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612041585] [2024-10-24 03:13:54,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:54,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 03:13:54,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:54,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 03:13:54,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:13:54,543 INFO L87 Difference]: Start difference. First operand 1988 states and 2925 transitions. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 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) [2024-10-24 03:13:54,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:54,573 INFO L93 Difference]: Finished difference Result 2807 states and 4129 transitions. [2024-10-24 03:13:54,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 03:13:54,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 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 661 [2024-10-24 03:13:54,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:54,576 INFO L225 Difference]: With dead ends: 2807 [2024-10-24 03:13:54,576 INFO L226 Difference]: Without dead ends: 1989 [2024-10-24 03:13:54,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1344 GetRequests, 1339 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:13:54,578 INFO L432 NwaCegarLoop]: 1082 mSDtfsCounter, 0 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2161 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 [2024-10-24 03:13:54,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2161 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:13:54,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1989 states. [2024-10-24 03:13:54,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1989 to 1989. [2024-10-24 03:13:54,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1967 states have (on average 1.467208947635994) internal successors, (2886), 1967 states have internal predecessors, (2886), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:13:54,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2926 transitions. [2024-10-24 03:13:54,603 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2926 transitions. Word has length 661 [2024-10-24 03:13:54,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:54,603 INFO L471 AbstractCegarLoop]: Abstraction has 1989 states and 2926 transitions. [2024-10-24 03:13:54,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 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) [2024-10-24 03:13:54,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2926 transitions. [2024-10-24 03:13:54,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2024-10-24 03:13:54,608 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:54,608 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:13:54,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-24 03:13:54,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-24 03:13:54,809 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:54,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:54,809 INFO L85 PathProgramCache]: Analyzing trace with hash -777704723, now seen corresponding path program 1 times [2024-10-24 03:13:54,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:54,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904312783] [2024-10-24 03:13:54,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:54,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:55,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:55,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:55,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:55,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:55,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:55,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2024-10-24 03:13:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:55,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2024-10-24 03:13:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:55,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2024-10-24 03:13:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:55,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2024-10-24 03:13:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:55,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2024-10-24 03:13:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:55,455 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 176 proven. 1 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-10-24 03:13:55,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:55,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904312783] [2024-10-24 03:13:55,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904312783] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:55,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283267234] [2024-10-24 03:13:55,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:55,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:55,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:55,457 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:55,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-24 03:13:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:56,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 3314 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 03:13:56,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 276 proven. 8 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-10-24 03:13:56,514 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:13:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-10-24 03:13:56,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283267234] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:56,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 03:13:56,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2024-10-24 03:13:56,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257195319] [2024-10-24 03:13:56,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:13:56,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 03:13:56,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:56,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 03:13:56,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:13:56,546 INFO L87 Difference]: Start difference. First operand 1989 states and 2926 transitions. Second operand has 3 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 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) [2024-10-24 03:13:56,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:56,578 INFO L93 Difference]: Finished difference Result 2809 states and 4131 transitions. [2024-10-24 03:13:56,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 03:13:56,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 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 662 [2024-10-24 03:13:56,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:56,581 INFO L225 Difference]: With dead ends: 2809 [2024-10-24 03:13:56,581 INFO L226 Difference]: Without dead ends: 1990 [2024-10-24 03:13:56,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1346 GetRequests, 1341 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:13:56,583 INFO L432 NwaCegarLoop]: 1082 mSDtfsCounter, 0 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2161 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 [2024-10-24 03:13:56,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2161 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:13:56,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2024-10-24 03:13:56,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1990. [2024-10-24 03:13:56,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1968 states have (on average 1.4669715447154472) internal successors, (2887), 1968 states have internal predecessors, (2887), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:13:56,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2927 transitions. [2024-10-24 03:13:56,610 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2927 transitions. Word has length 662 [2024-10-24 03:13:56,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:56,610 INFO L471 AbstractCegarLoop]: Abstraction has 1990 states and 2927 transitions. [2024-10-24 03:13:56,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 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) [2024-10-24 03:13:56,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2927 transitions. [2024-10-24 03:13:56,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2024-10-24 03:13:56,614 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:56,615 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:13:56,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-24 03:13:56,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-24 03:13:56,816 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:56,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:56,819 INFO L85 PathProgramCache]: Analyzing trace with hash -760226680, now seen corresponding path program 1 times [2024-10-24 03:13:56,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:56,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195536819] [2024-10-24 03:13:56,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:56,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:57,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:57,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:57,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:57,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:57,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:57,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2024-10-24 03:13:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:57,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2024-10-24 03:13:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:57,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2024-10-24 03:13:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:57,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2024-10-24 03:13:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:57,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2024-10-24 03:13:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 176 proven. 1 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-10-24 03:13:57,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:57,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195536819] [2024-10-24 03:13:57,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195536819] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:57,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493554053] [2024-10-24 03:13:57,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:57,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:57,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:57,506 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:57,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-24 03:13:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:58,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 3321 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 03:13:58,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:13:58,720 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 276 proven. 30 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-10-24 03:13:58,720 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:13:58,767 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 176 proven. 1 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-10-24 03:13:58,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493554053] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:13:58,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 03:13:58,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 9 [2024-10-24 03:13:58,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040294784] [2024-10-24 03:13:58,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 03:13:58,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 03:13:58,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:13:58,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 03:13:58,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:13:58,770 INFO L87 Difference]: Start difference. First operand 1990 states and 2927 transitions. Second operand has 9 states, 9 states have (on average 65.22222222222223) internal successors, (587), 9 states have internal predecessors, (587), 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) [2024-10-24 03:13:58,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:13:58,869 INFO L93 Difference]: Finished difference Result 2813 states and 4137 transitions. [2024-10-24 03:13:58,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 03:13:58,870 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 65.22222222222223) internal successors, (587), 9 states have internal predecessors, (587), 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 663 [2024-10-24 03:13:58,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:13:58,873 INFO L225 Difference]: With dead ends: 2813 [2024-10-24 03:13:58,873 INFO L226 Difference]: Without dead ends: 1993 [2024-10-24 03:13:58,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1349 GetRequests, 1341 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:13:58,875 INFO L432 NwaCegarLoop]: 1086 mSDtfsCounter, 10 mSDsluCounter, 7573 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 8659 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:13:58,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 8659 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:13:58,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2024-10-24 03:13:58,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1993. [2024-10-24 03:13:58,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1971 states have (on average 1.4662607813292745) internal successors, (2890), 1971 states have internal predecessors, (2890), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:13:58,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2930 transitions. [2024-10-24 03:13:58,916 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2930 transitions. Word has length 663 [2024-10-24 03:13:58,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:13:58,917 INFO L471 AbstractCegarLoop]: Abstraction has 1993 states and 2930 transitions. [2024-10-24 03:13:58,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 65.22222222222223) internal successors, (587), 9 states have internal predecessors, (587), 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) [2024-10-24 03:13:58,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2930 transitions. [2024-10-24 03:13:58,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2024-10-24 03:13:58,924 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:13:58,925 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:13:58,947 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-10-24 03:13:59,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:59,126 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:13:59,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:13:59,127 INFO L85 PathProgramCache]: Analyzing trace with hash -47473659, now seen corresponding path program 2 times [2024-10-24 03:13:59,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:13:59,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144588841] [2024-10-24 03:13:59,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:13:59,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:13:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:59,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:13:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:59,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 03:13:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:59,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 03:13:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:59,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 03:13:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:59,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 03:13:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:59,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2024-10-24 03:13:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:59,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2024-10-24 03:13:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:59,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2024-10-24 03:13:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:59,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2024-10-24 03:13:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:59,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2024-10-24 03:13:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:13:59,969 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 176 proven. 10 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-10-24 03:13:59,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:13:59,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144588841] [2024-10-24 03:13:59,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144588841] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:13:59,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795762079] [2024-10-24 03:13:59,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 03:13:59,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:13:59,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:13:59,971 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:13:59,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-24 03:14:00,889 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 03:14:00,889 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 03:14:00,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-10-24 03:14:00,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:14:01,362 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-10-24 03:14:01,363 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:14:01,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795762079] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:14:01,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:14:01,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-10-24 03:14:01,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671484202] [2024-10-24 03:14:01,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:14:01,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:14:01,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:14:01,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:14:01,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-24 03:14:01,366 INFO L87 Difference]: Start difference. First operand 1993 states and 2930 transitions. Second operand has 8 states, 8 states have (on average 71.875) internal successors, (575), 8 states have internal predecessors, (575), 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) [2024-10-24 03:14:02,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:14:02,282 INFO L93 Difference]: Finished difference Result 3591 states and 5285 transitions. [2024-10-24 03:14:02,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 03:14:02,282 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 71.875) internal successors, (575), 8 states have internal predecessors, (575), 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 666 [2024-10-24 03:14:02,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:14:02,285 INFO L225 Difference]: With dead ends: 3591 [2024-10-24 03:14:02,285 INFO L226 Difference]: Without dead ends: 2025 [2024-10-24 03:14:02,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 681 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-24 03:14:02,287 INFO L432 NwaCegarLoop]: 790 mSDtfsCounter, 685 mSDsluCounter, 3905 mSDsCounter, 0 mSdLazyCounter, 1835 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 4695 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:14:02,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 4695 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1835 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:14:02,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2024-10-24 03:14:02,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 2017. [2024-10-24 03:14:02,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 1995 states have (on average 1.4646616541353383) internal successors, (2922), 1995 states have internal predecessors, (2922), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:14:02,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2962 transitions. [2024-10-24 03:14:02,312 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2962 transitions. Word has length 666 [2024-10-24 03:14:02,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:14:02,312 INFO L471 AbstractCegarLoop]: Abstraction has 2017 states and 2962 transitions. [2024-10-24 03:14:02,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 71.875) internal successors, (575), 8 states have internal predecessors, (575), 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) [2024-10-24 03:14:02,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2962 transitions. [2024-10-24 03:14:02,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2024-10-24 03:14:02,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:14:02,317 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:14:02,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-10-24 03:14:02,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-24 03:14:02,518 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:14:02,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:14:02,518 INFO L85 PathProgramCache]: Analyzing trace with hash -300761415, now seen corresponding path program 1 times [2024-10-24 03:14:02,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:14:02,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122709531] [2024-10-24 03:14:02,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:14:02,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:14:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:03,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 03:14:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:03,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 03:14:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:03,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 03:14:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:03,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 03:14:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:03,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:14:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:03,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-10-24 03:14:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:03,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2024-10-24 03:14:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:03,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2024-10-24 03:14:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:03,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2024-10-24 03:14:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:03,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2024-10-24 03:14:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:03,324 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 177 proven. 10 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-10-24 03:14:03,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:14:03,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122709531] [2024-10-24 03:14:03,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122709531] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:14:03,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712850975] [2024-10-24 03:14:03,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:14:03,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:14:03,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:14:03,326 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:14:03,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-24 03:14:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:04,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 3348 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-24 03:14:04,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:14:04,546 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 277 proven. 84 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-10-24 03:14:04,546 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:14:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 177 proven. 10 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-10-24 03:14:04,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712850975] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:14:04,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 03:14:04,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 7] total 18 [2024-10-24 03:14:04,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333193108] [2024-10-24 03:14:04,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 03:14:04,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 03:14:04,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:14:04,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 03:14:04,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-10-24 03:14:04,632 INFO L87 Difference]: Start difference. First operand 2017 states and 2962 transitions. Second operand has 18 states, 18 states have (on average 33.55555555555556) internal successors, (604), 18 states have internal predecessors, (604), 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) [2024-10-24 03:14:04,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:14:04,777 INFO L93 Difference]: Finished difference Result 2850 states and 4185 transitions. [2024-10-24 03:14:04,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:14:04,777 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 33.55555555555556) internal successors, (604), 18 states have internal predecessors, (604), 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 668 [2024-10-24 03:14:04,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:14:04,780 INFO L225 Difference]: With dead ends: 2850 [2024-10-24 03:14:04,780 INFO L226 Difference]: Without dead ends: 2021 [2024-10-24 03:14:04,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1363 GetRequests, 1345 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-10-24 03:14:04,782 INFO L432 NwaCegarLoop]: 1101 mSDtfsCounter, 22 mSDsluCounter, 10960 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 12061 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:14:04,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 12061 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:14:04,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2021 states. [2024-10-24 03:14:04,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2021 to 2021. [2024-10-24 03:14:04,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2021 states, 1999 states have (on average 1.4637318659329666) internal successors, (2926), 1999 states have internal predecessors, (2926), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 03:14:04,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2021 states to 2021 states and 2966 transitions. [2024-10-24 03:14:04,810 INFO L78 Accepts]: Start accepts. Automaton has 2021 states and 2966 transitions. Word has length 668 [2024-10-24 03:14:04,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:14:04,811 INFO L471 AbstractCegarLoop]: Abstraction has 2021 states and 2966 transitions. [2024-10-24 03:14:04,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 33.55555555555556) internal successors, (604), 18 states have internal predecessors, (604), 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) [2024-10-24 03:14:04,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2021 states and 2966 transitions. [2024-10-24 03:14:04,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2024-10-24 03:14:04,815 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:14:04,816 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:14:04,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-10-24 03:14:05,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:14:05,016 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:14:05,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:14:05,017 INFO L85 PathProgramCache]: Analyzing trace with hash 191199097, now seen corresponding path program 2 times [2024-10-24 03:14:05,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:14:05,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032051180] [2024-10-24 03:14:05,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:14:05,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:14:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:05,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 03:14:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:05,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 03:14:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:05,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 03:14:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:05,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 03:14:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:05,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:14:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:05,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2024-10-24 03:14:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:05,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2024-10-24 03:14:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:05,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2024-10-24 03:14:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:05,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2024-10-24 03:14:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:05,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2024-10-24 03:14:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:05,677 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2024-10-24 03:14:05,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:14:05,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032051180] [2024-10-24 03:14:05,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032051180] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:14:05,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868008593] [2024-10-24 03:14:05,677 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 03:14:05,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:14:05,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:14:05,679 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:14:05,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-24 03:14:06,660 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 03:14:06,660 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 03:14:06,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-10-24 03:14:06,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:14:08,635 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 165 proven. 9 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2024-10-24 03:14:08,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:14:09,777 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2024-10-24 03:14:09,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868008593] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 03:14:09,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 03:14:09,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [4, 8] total 19 [2024-10-24 03:14:09,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834932300] [2024-10-24 03:14:09,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:14:09,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 03:14:09,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:14:09,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 03:14:09,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-10-24 03:14:09,781 INFO L87 Difference]: Start difference. First operand 2021 states and 2966 transitions. Second operand has 11 states, 11 states have (on average 52.18181818181818) internal successors, (574), 11 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) [2024-10-24 03:14:10,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:14:10,728 INFO L93 Difference]: Finished difference Result 4157 states and 6112 transitions. [2024-10-24 03:14:10,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:14:10,728 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 52.18181818181818) internal successors, (574), 11 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 672 [2024-10-24 03:14:10,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:14:10,733 INFO L225 Difference]: With dead ends: 4157 [2024-10-24 03:14:10,733 INFO L226 Difference]: Without dead ends: 3258 [2024-10-24 03:14:10,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1368 GetRequests, 1350 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2024-10-24 03:14:10,735 INFO L432 NwaCegarLoop]: 1367 mSDtfsCounter, 1397 mSDsluCounter, 4475 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 5842 SdHoareTripleChecker+Invalid, 1800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:14:10,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 5842 Invalid, 1800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:14:10,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3258 states. [2024-10-24 03:14:10,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3258 to 2149. [2024-10-24 03:14:10,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2149 states, 2122 states have (on average 1.4646559849198868) internal successors, (3108), 2122 states have internal predecessors, (3108), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 03:14:10,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2149 states to 2149 states and 3158 transitions. [2024-10-24 03:14:10,771 INFO L78 Accepts]: Start accepts. Automaton has 2149 states and 3158 transitions. Word has length 672 [2024-10-24 03:14:10,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:14:10,771 INFO L471 AbstractCegarLoop]: Abstraction has 2149 states and 3158 transitions. [2024-10-24 03:14:10,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.18181818181818) internal successors, (574), 11 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) [2024-10-24 03:14:10,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2149 states and 3158 transitions. [2024-10-24 03:14:10,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2024-10-24 03:14:10,776 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:14:10,776 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:14:10,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-10-24 03:14:10,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:14:10,977 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:14:10,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:14:10,978 INFO L85 PathProgramCache]: Analyzing trace with hash 2064422437, now seen corresponding path program 1 times [2024-10-24 03:14:10,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:14:10,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113993428] [2024-10-24 03:14:10,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:14:10,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:14:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:11,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 03:14:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:11,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 03:14:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:11,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 03:14:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:11,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 03:14:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:11,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:14:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:11,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2024-10-24 03:14:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:11,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2024-10-24 03:14:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:11,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2024-10-24 03:14:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:11,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2024-10-24 03:14:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:11,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2024-10-24 03:14:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:11,618 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 176 proven. 1 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2024-10-24 03:14:11,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:14:11,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113993428] [2024-10-24 03:14:11,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113993428] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:14:11,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122869745] [2024-10-24 03:14:11,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:14:11,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:14:11,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:14:11,620 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:14:11,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-24 03:14:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:12,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 3377 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 03:14:12,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:14:12,909 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 276 proven. 30 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-24 03:14:12,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:14:12,957 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 176 proven. 1 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2024-10-24 03:14:12,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122869745] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:14:12,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 03:14:12,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 9 [2024-10-24 03:14:12,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802680497] [2024-10-24 03:14:12,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 03:14:12,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 03:14:12,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:14:12,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 03:14:12,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:14:12,960 INFO L87 Difference]: Start difference. First operand 2149 states and 3158 transitions. Second operand has 9 states, 9 states have (on average 65.55555555555556) internal successors, (590), 9 states have internal predecessors, (590), 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) [2024-10-24 03:14:13,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:14:13,039 INFO L93 Difference]: Finished difference Result 3461 states and 5089 transitions. [2024-10-24 03:14:13,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 03:14:13,040 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 65.55555555555556) internal successors, (590), 9 states have internal predecessors, (590), 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 673 [2024-10-24 03:14:13,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:14:13,042 INFO L225 Difference]: With dead ends: 3461 [2024-10-24 03:14:13,042 INFO L226 Difference]: Without dead ends: 2152 [2024-10-24 03:14:13,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1369 GetRequests, 1361 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:14:13,044 INFO L432 NwaCegarLoop]: 1086 mSDtfsCounter, 10 mSDsluCounter, 5407 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 6493 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:14:13,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 6493 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:14:13,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2152 states. [2024-10-24 03:14:13,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2152 to 2152. [2024-10-24 03:14:13,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2152 states, 2125 states have (on average 1.464) internal successors, (3111), 2125 states have internal predecessors, (3111), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 03:14:13,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2152 states to 2152 states and 3161 transitions. [2024-10-24 03:14:13,076 INFO L78 Accepts]: Start accepts. Automaton has 2152 states and 3161 transitions. Word has length 673 [2024-10-24 03:14:13,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:14:13,076 INFO L471 AbstractCegarLoop]: Abstraction has 2152 states and 3161 transitions. [2024-10-24 03:14:13,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 65.55555555555556) internal successors, (590), 9 states have internal predecessors, (590), 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) [2024-10-24 03:14:13,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2152 states and 3161 transitions. [2024-10-24 03:14:13,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2024-10-24 03:14:13,082 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:14:13,082 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:14:13,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-10-24 03:14:13,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:14:13,283 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:14:13,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:14:13,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1793196468, now seen corresponding path program 2 times [2024-10-24 03:14:13,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:14:13,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181855126] [2024-10-24 03:14:13,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:14:13,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:14:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:14,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 03:14:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:14,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 03:14:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:14,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 03:14:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:14,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 03:14:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:14,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:14:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:14,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2024-10-24 03:14:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:14,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2024-10-24 03:14:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:14,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2024-10-24 03:14:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:14,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2024-10-24 03:14:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:14,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2024-10-24 03:14:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:14,080 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 176 proven. 10 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2024-10-24 03:14:14,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:14:14,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181855126] [2024-10-24 03:14:14,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181855126] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:14:14,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760754268] [2024-10-24 03:14:14,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 03:14:14,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:14:14,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:14:14,081 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:14:14,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-24 03:14:15,156 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 03:14:15,157 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 03:14:15,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-10-24 03:14:15,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:14:16,821 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 164 proven. 9 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2024-10-24 03:14:16,821 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:14:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 105 proven. 68 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2024-10-24 03:14:18,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760754268] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:14:18,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 03:14:18,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 10] total 22 [2024-10-24 03:14:18,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940015251] [2024-10-24 03:14:18,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 03:14:18,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-24 03:14:18,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:14:18,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-24 03:14:18,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2024-10-24 03:14:18,812 INFO L87 Difference]: Start difference. First operand 2152 states and 3161 transitions. Second operand has 22 states, 22 states have (on average 73.18181818181819) internal successors, (1610), 22 states have internal predecessors, (1610), 6 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-10-24 03:14:20,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:14:20,536 INFO L93 Difference]: Finished difference Result 4389 states and 6462 transitions. [2024-10-24 03:14:20,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 03:14:20,537 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 73.18181818181819) internal successors, (1610), 22 states have internal predecessors, (1610), 6 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) Word has length 676 [2024-10-24 03:14:20,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:14:20,540 INFO L225 Difference]: With dead ends: 4389 [2024-10-24 03:14:20,540 INFO L226 Difference]: Without dead ends: 2670 [2024-10-24 03:14:20,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1387 GetRequests, 1358 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=796, Unknown=0, NotChecked=0, Total=930 [2024-10-24 03:14:20,542 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 1734 mSDsluCounter, 8185 mSDsCounter, 0 mSdLazyCounter, 4036 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1734 SdHoareTripleChecker+Valid, 8988 SdHoareTripleChecker+Invalid, 4042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:14:20,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1734 Valid, 8988 Invalid, 4042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4036 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 03:14:20,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2024-10-24 03:14:20,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2537. [2024-10-24 03:14:20,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2537 states, 2495 states have (on average 1.4629258517034067) internal successors, (3650), 2495 states have internal predecessors, (3650), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 03:14:20,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 3730 transitions. [2024-10-24 03:14:20,580 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 3730 transitions. Word has length 676 [2024-10-24 03:14:20,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:14:20,580 INFO L471 AbstractCegarLoop]: Abstraction has 2537 states and 3730 transitions. [2024-10-24 03:14:20,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 73.18181818181819) internal successors, (1610), 22 states have internal predecessors, (1610), 6 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-10-24 03:14:20,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 3730 transitions. [2024-10-24 03:14:20,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2024-10-24 03:14:20,586 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:14:20,586 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2024-10-24 03:14:20,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-10-24 03:14:20,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:14:20,791 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:14:20,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:14:20,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1653051967, now seen corresponding path program 1 times [2024-10-24 03:14:20,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:14:20,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763770759] [2024-10-24 03:14:20,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:14:20,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:14:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:21,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 03:14:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:21,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 03:14:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:21,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 03:14:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:21,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 03:14:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:21,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-24 03:14:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:21,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2024-10-24 03:14:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:21,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2024-10-24 03:14:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:21,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2024-10-24 03:14:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:21,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2024-10-24 03:14:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:21,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 553 [2024-10-24 03:14:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:21,671 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 178 proven. 15 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2024-10-24 03:14:21,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:14:21,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763770759] [2024-10-24 03:14:21,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763770759] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:14:21,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757396236] [2024-10-24 03:14:21,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:14:21,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:14:21,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:14:21,673 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:14:21,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-24 03:14:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:22,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 3406 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-24 03:14:22,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:14:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 278 proven. 98 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-10-24 03:14:23,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:14:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 178 proven. 15 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2024-10-24 03:14:23,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757396236] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:14:23,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 03:14:23,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 14, 8] total 21 [2024-10-24 03:14:23,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994146838] [2024-10-24 03:14:23,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 03:14:23,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 03:14:23,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:14:23,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 03:14:23,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2024-10-24 03:14:23,165 INFO L87 Difference]: Start difference. First operand 2537 states and 3730 transitions. Second operand has 21 states, 21 states have (on average 29.095238095238095) internal successors, (611), 21 states have internal predecessors, (611), 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) [2024-10-24 03:14:23,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:14:23,383 INFO L93 Difference]: Finished difference Result 3505 states and 5149 transitions. [2024-10-24 03:14:23,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 03:14:23,383 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 29.095238095238095) internal successors, (611), 21 states have internal predecessors, (611), 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 678 [2024-10-24 03:14:23,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:14:23,386 INFO L225 Difference]: With dead ends: 3505 [2024-10-24 03:14:23,386 INFO L226 Difference]: Without dead ends: 2540 [2024-10-24 03:14:23,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1383 GetRequests, 1363 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-10-24 03:14:23,388 INFO L432 NwaCegarLoop]: 1106 mSDtfsCounter, 26 mSDsluCounter, 15418 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 16524 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:14:23,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 16524 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:14:23,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2540 states. [2024-10-24 03:14:23,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2540 to 2540. [2024-10-24 03:14:23,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2540 states, 2498 states have (on average 1.4623698959167335) internal successors, (3653), 2498 states have internal predecessors, (3653), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 03:14:23,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 3733 transitions. [2024-10-24 03:14:23,425 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 3733 transitions. Word has length 678 [2024-10-24 03:14:23,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:14:23,426 INFO L471 AbstractCegarLoop]: Abstraction has 2540 states and 3733 transitions. [2024-10-24 03:14:23,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 29.095238095238095) internal successors, (611), 21 states have internal predecessors, (611), 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) [2024-10-24 03:14:23,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 3733 transitions. [2024-10-24 03:14:23,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2024-10-24 03:14:23,431 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:14:23,431 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:14:23,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-10-24 03:14:23,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-10-24 03:14:23,632 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:14:23,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:14:23,633 INFO L85 PathProgramCache]: Analyzing trace with hash -93473998, now seen corresponding path program 2 times [2024-10-24 03:14:23,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:14:23,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442577928] [2024-10-24 03:14:23,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:14:23,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:14:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:24,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 03:14:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:24,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 03:14:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:24,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 03:14:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:24,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 03:14:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:24,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-24 03:14:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:24,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2024-10-24 03:14:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:24,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-10-24 03:14:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:24,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2024-10-24 03:14:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:24,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2024-10-24 03:14:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:24,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 556 [2024-10-24 03:14:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:14:24,311 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 178 proven. 1 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2024-10-24 03:14:24,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:14:24,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442577928] [2024-10-24 03:14:24,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442577928] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:14:24,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828638088] [2024-10-24 03:14:24,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 03:14:24,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:14:24,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:14:24,313 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:14:24,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process