./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', 'f5e5c42bbeffae4fb860efffdbf66b7537cb720af3f49bb62a0f81dcf7dbce99'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 f5e5c42bbeffae4fb860efffdbf66b7537cb720af3f49bb62a0f81dcf7dbce99 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 02:56:56,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 02:56:56,388 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 02:56:56,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 02:56:56,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 02:56:56,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 02:56:56,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 02:56:56,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 02:56:56,425 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 02:56:56,426 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 02:56:56,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 02:56:56,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 02:56:56,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 02:56:56,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 02:56:56,427 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 02:56:56,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 02:56:56,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 02:56:56,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 02:56:56,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 02:56:56,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 02:56:56,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 02:56:56,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 02:56:56,428 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 02:56:56,428 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 02:56:56,428 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 02:56:56,428 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 02:56:56,428 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 02:56:56,428 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 02:56:56,428 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 02:56:56,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:56:56,429 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 02:56:56,429 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 02:56:56,429 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 02:56:56,429 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 02:56:56,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 02:56:56,429 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 02:56:56,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 02:56:56,430 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 02:56:56,430 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 02:56:56,430 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> f5e5c42bbeffae4fb860efffdbf66b7537cb720af3f49bb62a0f81dcf7dbce99 [2024-11-07 02:56:56,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 02:56:56,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 02:56:56,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 02:56:56,699 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 02:56:56,699 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 02:56:56,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c [2024-11-07 02:56:57,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 02:56:58,085 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 02:56:58,086 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c [2024-11-07 02:56:58,095 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f42dbeaeb/679bdf4c1a3f4b77a06e75a5835869c5/FLAG33bb9987c [2024-11-07 02:56:58,445 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f42dbeaeb/679bdf4c1a3f4b77a06e75a5835869c5 [2024-11-07 02:56:58,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 02:56:58,448 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 02:56:58,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 02:56:58,449 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 02:56:58,452 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 02:56:58,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:56:58" (1/1) ... [2024-11-07 02:56:58,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706c2af9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58, skipping insertion in model container [2024-11-07 02:56:58,454 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:56:58" (1/1) ... [2024-11-07 02:56:58,479 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 02:56:58,596 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c[1246,1259] [2024-11-07 02:56:58,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:56:58,731 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 02:56:58,741 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c[1246,1259] [2024-11-07 02:56:58,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:56:58,836 INFO L204 MainTranslator]: Completed translation [2024-11-07 02:56:58,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58 WrapperNode [2024-11-07 02:56:58,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 02:56:58,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 02:56:58,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 02:56:58,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 02:56:58,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58" (1/1) ... [2024-11-07 02:56:58,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58" (1/1) ... [2024-11-07 02:56:59,059 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1466 [2024-11-07 02:56:59,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 02:56:59,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 02:56:59,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 02:56:59,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 02:56:59,066 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58" (1/1) ... [2024-11-07 02:56:59,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58" (1/1) ... [2024-11-07 02:56:59,105 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58" (1/1) ... [2024-11-07 02:56:59,159 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 02:56:59,160 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58" (1/1) ... [2024-11-07 02:56:59,160 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58" (1/1) ... [2024-11-07 02:56:59,194 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58" (1/1) ... [2024-11-07 02:56:59,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58" (1/1) ... [2024-11-07 02:56:59,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58" (1/1) ... [2024-11-07 02:56:59,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58" (1/1) ... [2024-11-07 02:56:59,260 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 02:56:59,262 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 02:56:59,262 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 02:56:59,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 02:56:59,263 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58" (1/1) ... [2024-11-07 02:56:59,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:56:59,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:56:59,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 02:56:59,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 02:56:59,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 02:56:59,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 02:56:59,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 02:56:59,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 02:56:59,492 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 02:56:59,494 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 02:57:00,942 INFO L? ?]: Removed 912 outVars from TransFormulas that were not future-live. [2024-11-07 02:57:00,943 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 02:57:00,956 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 02:57:00,957 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 02:57:00,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:57:00 BoogieIcfgContainer [2024-11-07 02:57:00,957 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 02:57:00,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 02:57:00,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 02:57:00,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 02:57:00,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:56:58" (1/3) ... [2024-11-07 02:57:00,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e7be53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:57:00, skipping insertion in model container [2024-11-07 02:57:00,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:58" (2/3) ... [2024-11-07 02:57:00,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e7be53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:57:00, skipping insertion in model container [2024-11-07 02:57:00,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:57:00" (3/3) ... [2024-11-07 02:57:00,969 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Ibuf.c [2024-11-07 02:57:00,980 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 02:57:00,981 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 02:57:01,040 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 02:57:01,052 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;@28019528, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 02:57:01,052 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 02:57:01,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 482 states, 480 states have (on average 1.4979166666666666) internal successors, (719), 481 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:01,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-07 02:57:01,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:01,066 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:01,067 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:01,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:01,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1097876217, now seen corresponding path program 1 times [2024-11-07 02:57:01,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:01,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461501544] [2024-11-07 02:57:01,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:01,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:01,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:01,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:01,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461501544] [2024-11-07 02:57:01,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461501544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:01,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:01,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:57:01,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973524842] [2024-11-07 02:57:01,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:01,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:57:01,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:01,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:57:01,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:57:01,500 INFO L87 Difference]: Start difference. First operand has 482 states, 480 states have (on average 1.4979166666666666) internal successors, (719), 481 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:01,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:01,594 INFO L93 Difference]: Finished difference Result 953 states and 1425 transitions. [2024-11-07 02:57:01,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:57:01,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-07 02:57:01,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:01,603 INFO L225 Difference]: With dead ends: 953 [2024-11-07 02:57:01,603 INFO L226 Difference]: Without dead ends: 481 [2024-11-07 02:57:01,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:57:01,608 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 0 mSDsluCounter, 1420 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:01,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2133 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:01,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-07 02:57:01,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2024-11-07 02:57:01,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.49375) internal successors, (717), 480 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:01,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 717 transitions. [2024-11-07 02:57:01,662 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 717 transitions. Word has length 21 [2024-11-07 02:57:01,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:01,663 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 717 transitions. [2024-11-07 02:57:01,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:01,664 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 717 transitions. [2024-11-07 02:57:01,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-07 02:57:01,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:01,665 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:01,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 02:57:01,665 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:01,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:01,666 INFO L85 PathProgramCache]: Analyzing trace with hash 327270898, now seen corresponding path program 1 times [2024-11-07 02:57:01,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:01,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454983360] [2024-11-07 02:57:01,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:01,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:01,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:01,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:01,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454983360] [2024-11-07 02:57:01,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454983360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:01,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:01,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:57:01,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389198099] [2024-11-07 02:57:01,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:01,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:57:01,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:01,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:57:01,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:57:01,865 INFO L87 Difference]: Start difference. First operand 481 states and 717 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:01,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:01,896 INFO L93 Difference]: Finished difference Result 954 states and 1423 transitions. [2024-11-07 02:57:01,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:57:01,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-07 02:57:01,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:01,900 INFO L225 Difference]: With dead ends: 954 [2024-11-07 02:57:01,904 INFO L226 Difference]: Without dead ends: 483 [2024-11-07 02:57:01,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:57:01,906 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 0 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:01,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2129 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:01,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-07 02:57:01,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2024-11-07 02:57:01,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.491701244813278) internal successors, (719), 482 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:01,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 719 transitions. [2024-11-07 02:57:01,928 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 719 transitions. Word has length 22 [2024-11-07 02:57:01,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:01,929 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 719 transitions. [2024-11-07 02:57:01,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:01,929 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 719 transitions. [2024-11-07 02:57:01,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-07 02:57:01,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:01,930 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:01,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 02:57:01,930 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:01,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:01,930 INFO L85 PathProgramCache]: Analyzing trace with hash 457497408, now seen corresponding path program 1 times [2024-11-07 02:57:01,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:01,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593496244] [2024-11-07 02:57:01,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:01,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:02,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:02,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:02,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593496244] [2024-11-07 02:57:02,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593496244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:02,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:02,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:02,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398535531] [2024-11-07 02:57:02,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:02,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:02,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:02,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:02,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:02,152 INFO L87 Difference]: Start difference. First operand 483 states and 719 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:02,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:02,210 INFO L93 Difference]: Finished difference Result 960 states and 1430 transitions. [2024-11-07 02:57:02,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:02,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-07 02:57:02,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:02,213 INFO L225 Difference]: With dead ends: 960 [2024-11-07 02:57:02,214 INFO L226 Difference]: Without dead ends: 487 [2024-11-07 02:57:02,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:02,216 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 706 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:02,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 2125 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:02,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-07 02:57:02,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 486. [2024-11-07 02:57:02,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 485 states have (on average 1.488659793814433) internal successors, (722), 485 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:02,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 722 transitions. [2024-11-07 02:57:02,240 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 722 transitions. Word has length 23 [2024-11-07 02:57:02,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:02,240 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 722 transitions. [2024-11-07 02:57:02,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:02,240 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 722 transitions. [2024-11-07 02:57:02,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-07 02:57:02,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:02,241 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:02,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 02:57:02,241 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:02,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:02,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1432904331, now seen corresponding path program 1 times [2024-11-07 02:57:02,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:02,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216908960] [2024-11-07 02:57:02,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:02,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:02,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:02,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:02,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216908960] [2024-11-07 02:57:02,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216908960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:02,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:02,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:57:02,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124472282] [2024-11-07 02:57:02,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:02,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:57:02,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:02,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:57:02,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:02,515 INFO L87 Difference]: Start difference. First operand 486 states and 722 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:02,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:02,651 INFO L93 Difference]: Finished difference Result 1413 states and 2101 transitions. [2024-11-07 02:57:02,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 02:57:02,651 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-07 02:57:02,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:02,656 INFO L225 Difference]: With dead ends: 1413 [2024-11-07 02:57:02,656 INFO L226 Difference]: Without dead ends: 937 [2024-11-07 02:57:02,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-07 02:57:02,660 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 751 mSDsluCounter, 3496 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 4199 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:02,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 4199 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:02,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-07 02:57:02,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 495. [2024-11-07 02:57:02,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 494 states have (on average 1.48582995951417) internal successors, (734), 494 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:02,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 734 transitions. [2024-11-07 02:57:02,679 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 734 transitions. Word has length 24 [2024-11-07 02:57:02,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:02,680 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 734 transitions. [2024-11-07 02:57:02,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:02,680 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 734 transitions. [2024-11-07 02:57:02,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-07 02:57:02,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:02,681 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:02,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 02:57:02,681 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:02,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:02,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1448919477, now seen corresponding path program 1 times [2024-11-07 02:57:02,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:02,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925946088] [2024-11-07 02:57:02,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:02,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:02,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:02,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:02,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925946088] [2024-11-07 02:57:02,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925946088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:02,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:02,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 02:57:02,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241898967] [2024-11-07 02:57:02,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:02,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 02:57:02,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:02,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 02:57:02,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-07 02:57:02,964 INFO L87 Difference]: Start difference. First operand 495 states and 734 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:03,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:03,102 INFO L93 Difference]: Finished difference Result 1050 states and 1551 transitions. [2024-11-07 02:57:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 02:57:03,102 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-07 02:57:03,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:03,104 INFO L225 Difference]: With dead ends: 1050 [2024-11-07 02:57:03,105 INFO L226 Difference]: Without dead ends: 569 [2024-11-07 02:57:03,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-07 02:57:03,106 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 119 mSDsluCounter, 4197 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 4896 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:03,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 4896 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:03,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-07 02:57:03,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 507. [2024-11-07 02:57:03,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 506 states have (on average 1.4802371541501975) internal successors, (749), 506 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:03,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 749 transitions. [2024-11-07 02:57:03,115 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 749 transitions. Word has length 25 [2024-11-07 02:57:03,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:03,116 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 749 transitions. [2024-11-07 02:57:03,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:03,116 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 749 transitions. [2024-11-07 02:57:03,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-07 02:57:03,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:03,116 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:03,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 02:57:03,117 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:03,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:03,117 INFO L85 PathProgramCache]: Analyzing trace with hash 793261177, now seen corresponding path program 1 times [2024-11-07 02:57:03,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:03,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290446829] [2024-11-07 02:57:03,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:03,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:03,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:03,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:03,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290446829] [2024-11-07 02:57:03,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290446829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:03,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:03,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 02:57:03,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413571503] [2024-11-07 02:57:03,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:03,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 02:57:03,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:03,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 02:57:03,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 02:57:03,377 INFO L87 Difference]: Start difference. First operand 507 states and 749 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:03,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:03,571 INFO L93 Difference]: Finished difference Result 1048 states and 1548 transitions. [2024-11-07 02:57:03,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 02:57:03,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-07 02:57:03,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:03,573 INFO L225 Difference]: With dead ends: 1048 [2024-11-07 02:57:03,573 INFO L226 Difference]: Without dead ends: 572 [2024-11-07 02:57:03,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-07 02:57:03,575 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 118 mSDsluCounter, 5572 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 6271 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:03,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 6271 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:03,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-07 02:57:03,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 513. [2024-11-07 02:57:03,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 512 states have (on average 1.478515625) internal successors, (757), 512 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:03,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 757 transitions. [2024-11-07 02:57:03,585 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 757 transitions. Word has length 25 [2024-11-07 02:57:03,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:03,586 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 757 transitions. [2024-11-07 02:57:03,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:03,586 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 757 transitions. [2024-11-07 02:57:03,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-07 02:57:03,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:03,587 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:03,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 02:57:03,587 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:03,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:03,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1179867534, now seen corresponding path program 1 times [2024-11-07 02:57:03,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:03,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699795872] [2024-11-07 02:57:03,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:03,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:03,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:03,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699795872] [2024-11-07 02:57:03,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699795872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:03,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:03,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 02:57:03,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754484166] [2024-11-07 02:57:03,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:03,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 02:57:03,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:03,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 02:57:03,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:57:03,815 INFO L87 Difference]: Start difference. First operand 513 states and 757 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:03,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:03,929 INFO L93 Difference]: Finished difference Result 1373 states and 2033 transitions. [2024-11-07 02:57:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 02:57:03,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-07 02:57:03,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:03,932 INFO L225 Difference]: With dead ends: 1373 [2024-11-07 02:57:03,932 INFO L226 Difference]: Without dead ends: 879 [2024-11-07 02:57:03,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-07 02:57:03,934 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 618 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 4181 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:03,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 4181 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:03,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2024-11-07 02:57:03,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 506. [2024-11-07 02:57:03,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.4792079207920792) internal successors, (747), 505 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:03,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 747 transitions. [2024-11-07 02:57:03,945 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 747 transitions. Word has length 25 [2024-11-07 02:57:03,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:03,945 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 747 transitions. [2024-11-07 02:57:03,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:03,946 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 747 transitions. [2024-11-07 02:57:03,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-07 02:57:03,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:03,946 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:03,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 02:57:03,947 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:03,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:03,947 INFO L85 PathProgramCache]: Analyzing trace with hash -859360899, now seen corresponding path program 1 times [2024-11-07 02:57:03,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:03,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076793401] [2024-11-07 02:57:03,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:03,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:04,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:04,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076793401] [2024-11-07 02:57:04,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076793401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:04,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:04,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 02:57:04,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367415162] [2024-11-07 02:57:04,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:04,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 02:57:04,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:04,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 02:57:04,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-07 02:57:04,270 INFO L87 Difference]: Start difference. First operand 506 states and 747 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:04,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:04,417 INFO L93 Difference]: Finished difference Result 1034 states and 1526 transitions. [2024-11-07 02:57:04,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 02:57:04,417 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-07 02:57:04,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:04,419 INFO L225 Difference]: With dead ends: 1034 [2024-11-07 02:57:04,419 INFO L226 Difference]: Without dead ends: 558 [2024-11-07 02:57:04,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-07 02:57:04,420 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 100 mSDsluCounter, 4214 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 4917 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:04,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 4917 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:04,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-07 02:57:04,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 509. [2024-11-07 02:57:04,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 508 states have (on average 1.4763779527559056) internal successors, (750), 508 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:04,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 750 transitions. [2024-11-07 02:57:04,429 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 750 transitions. Word has length 26 [2024-11-07 02:57:04,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:04,429 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 750 transitions. [2024-11-07 02:57:04,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:04,430 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 750 transitions. [2024-11-07 02:57:04,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-07 02:57:04,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:04,430 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:04,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 02:57:04,430 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:04,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:04,430 INFO L85 PathProgramCache]: Analyzing trace with hash 799104856, now seen corresponding path program 1 times [2024-11-07 02:57:04,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:04,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310863593] [2024-11-07 02:57:04,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:04,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:04,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:04,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:04,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310863593] [2024-11-07 02:57:04,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310863593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:04,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:04,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:04,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560865582] [2024-11-07 02:57:04,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:04,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:04,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:04,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:04,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:04,571 INFO L87 Difference]: Start difference. First operand 509 states and 750 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:04,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:04,648 INFO L93 Difference]: Finished difference Result 1344 states and 1993 transitions. [2024-11-07 02:57:04,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:57:04,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-07 02:57:04,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:04,651 INFO L225 Difference]: With dead ends: 1344 [2024-11-07 02:57:04,651 INFO L226 Difference]: Without dead ends: 855 [2024-11-07 02:57:04,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:57:04,654 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 578 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:04,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 3496 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:04,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-07 02:57:04,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 498. [2024-11-07 02:57:04,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 497 states have (on average 1.476861167002012) internal successors, (734), 497 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:04,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 734 transitions. [2024-11-07 02:57:04,667 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 734 transitions. Word has length 26 [2024-11-07 02:57:04,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:04,667 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 734 transitions. [2024-11-07 02:57:04,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:04,668 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 734 transitions. [2024-11-07 02:57:04,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-07 02:57:04,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:04,675 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:04,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 02:57:04,675 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:04,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:04,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1837234826, now seen corresponding path program 1 times [2024-11-07 02:57:04,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:04,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548309650] [2024-11-07 02:57:04,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:04,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:06,501 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:06,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:06,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548309650] [2024-11-07 02:57:06,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548309650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:06,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:06,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:57:06,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760619841] [2024-11-07 02:57:06,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:06,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:57:06,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:06,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:57:06,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:06,503 INFO L87 Difference]: Start difference. First operand 498 states and 734 transitions. Second operand has 7 states, 7 states have (on average 37.285714285714285) internal successors, (261), 7 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:06,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:06,567 INFO L93 Difference]: Finished difference Result 1166 states and 1730 transitions. [2024-11-07 02:57:06,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:57:06,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 37.285714285714285) internal successors, (261), 7 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 261 [2024-11-07 02:57:06,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:06,571 INFO L225 Difference]: With dead ends: 1166 [2024-11-07 02:57:06,571 INFO L226 Difference]: Without dead ends: 690 [2024-11-07 02:57:06,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:06,572 INFO L432 NwaCegarLoop]: 704 mSDtfsCounter, 852 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 3229 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:06,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 3229 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:06,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-07 02:57:06,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 688. [2024-11-07 02:57:06,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.4818049490538574) internal successors, (1018), 687 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:06,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1018 transitions. [2024-11-07 02:57:06,584 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1018 transitions. Word has length 261 [2024-11-07 02:57:06,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:06,584 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 1018 transitions. [2024-11-07 02:57:06,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.285714285714285) internal successors, (261), 7 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:06,585 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1018 transitions. [2024-11-07 02:57:06,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-07 02:57:06,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:06,587 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:06,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 02:57:06,587 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:06,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:06,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1797894198, now seen corresponding path program 1 times [2024-11-07 02:57:06,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:06,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188418217] [2024-11-07 02:57:06,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:06,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:08,065 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:08,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:08,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188418217] [2024-11-07 02:57:08,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188418217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:08,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:08,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 02:57:08,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420673767] [2024-11-07 02:57:08,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:08,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 02:57:08,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:08,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 02:57:08,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:08,066 INFO L87 Difference]: Start difference. First operand 688 states and 1018 transitions. Second operand has 9 states, 9 states have (on average 29.11111111111111) internal successors, (262), 9 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:08,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:08,193 INFO L93 Difference]: Finished difference Result 2202 states and 3278 transitions. [2024-11-07 02:57:08,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 02:57:08,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.11111111111111) internal successors, (262), 9 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2024-11-07 02:57:08,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:08,199 INFO L225 Difference]: With dead ends: 2202 [2024-11-07 02:57:08,199 INFO L226 Difference]: Without dead ends: 1536 [2024-11-07 02:57:08,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-07 02:57:08,201 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 788 mSDsluCounter, 4651 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 5351 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:08,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 5351 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:08,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2024-11-07 02:57:08,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1293. [2024-11-07 02:57:08,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1292 states have (on average 1.486842105263158) internal successors, (1921), 1292 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:08,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1921 transitions. [2024-11-07 02:57:08,224 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1921 transitions. Word has length 262 [2024-11-07 02:57:08,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:08,224 INFO L471 AbstractCegarLoop]: Abstraction has 1293 states and 1921 transitions. [2024-11-07 02:57:08,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.11111111111111) internal successors, (262), 9 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:08,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1921 transitions. [2024-11-07 02:57:08,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-07 02:57:08,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:08,230 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:08,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 02:57:08,231 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:08,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:08,231 INFO L85 PathProgramCache]: Analyzing trace with hash 923237221, now seen corresponding path program 1 times [2024-11-07 02:57:08,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:08,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600395771] [2024-11-07 02:57:08,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:08,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:09,468 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:09,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:09,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600395771] [2024-11-07 02:57:09,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600395771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:09,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:09,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 02:57:09,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537060504] [2024-11-07 02:57:09,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:09,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 02:57:09,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:09,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 02:57:09,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-07 02:57:09,470 INFO L87 Difference]: Start difference. First operand 1293 states and 1921 transitions. Second operand has 12 states, 12 states have (on average 21.916666666666668) internal successors, (263), 12 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:09,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:09,579 INFO L93 Difference]: Finished difference Result 2597 states and 3867 transitions. [2024-11-07 02:57:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 02:57:09,580 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 21.916666666666668) internal successors, (263), 12 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2024-11-07 02:57:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:09,585 INFO L225 Difference]: With dead ends: 2597 [2024-11-07 02:57:09,585 INFO L226 Difference]: Without dead ends: 1533 [2024-11-07 02:57:09,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-07 02:57:09,587 INFO L432 NwaCegarLoop]: 704 mSDtfsCounter, 183 mSDsluCounter, 4571 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 5275 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:09,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 5275 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:09,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2024-11-07 02:57:09,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1431. [2024-11-07 02:57:09,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1430 states have (on average 1.4846153846153847) internal successors, (2123), 1430 states have internal predecessors, (2123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:09,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 2123 transitions. [2024-11-07 02:57:09,611 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 2123 transitions. Word has length 263 [2024-11-07 02:57:09,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:09,612 INFO L471 AbstractCegarLoop]: Abstraction has 1431 states and 2123 transitions. [2024-11-07 02:57:09,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 21.916666666666668) internal successors, (263), 12 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:09,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 2123 transitions. [2024-11-07 02:57:09,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-07 02:57:09,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:09,615 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:09,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 02:57:09,615 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:09,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:09,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2064095051, now seen corresponding path program 1 times [2024-11-07 02:57:09,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:09,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245699397] [2024-11-07 02:57:09,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:09,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:10,667 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:10,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:10,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245699397] [2024-11-07 02:57:10,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245699397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:10,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:10,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:10,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240352938] [2024-11-07 02:57:10,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:10,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:10,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:10,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:10,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:10,668 INFO L87 Difference]: Start difference. First operand 1431 states and 2123 transitions. Second operand has 6 states, 6 states have (on average 43.833333333333336) internal successors, (263), 6 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:10,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:10,720 INFO L93 Difference]: Finished difference Result 2189 states and 3248 transitions. [2024-11-07 02:57:10,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:57:10,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 43.833333333333336) internal successors, (263), 6 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2024-11-07 02:57:10,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:10,726 INFO L225 Difference]: With dead ends: 2189 [2024-11-07 02:57:10,726 INFO L226 Difference]: Without dead ends: 1431 [2024-11-07 02:57:10,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:10,728 INFO L432 NwaCegarLoop]: 706 mSDtfsCounter, 802 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:10,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 2644 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:10,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2024-11-07 02:57:10,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1431. [2024-11-07 02:57:10,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1430 states have (on average 1.4832167832167833) internal successors, (2121), 1430 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:10,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 2121 transitions. [2024-11-07 02:57:10,756 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 2121 transitions. Word has length 263 [2024-11-07 02:57:10,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:10,758 INFO L471 AbstractCegarLoop]: Abstraction has 1431 states and 2121 transitions. [2024-11-07 02:57:10,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.833333333333336) internal successors, (263), 6 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:10,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 2121 transitions. [2024-11-07 02:57:10,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-07 02:57:10,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:10,762 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:10,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 02:57:10,763 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:10,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:10,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1714988954, now seen corresponding path program 1 times [2024-11-07 02:57:10,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:10,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71524680] [2024-11-07 02:57:10,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:10,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:11,710 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:11,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:11,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71524680] [2024-11-07 02:57:11,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71524680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:11,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:11,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 02:57:11,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632226948] [2024-11-07 02:57:11,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:11,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 02:57:11,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:11,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 02:57:11,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:11,712 INFO L87 Difference]: Start difference. First operand 1431 states and 2121 transitions. Second operand has 9 states, 9 states have (on average 29.333333333333332) internal successors, (264), 9 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:11,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:11,905 INFO L93 Difference]: Finished difference Result 2880 states and 4274 transitions. [2024-11-07 02:57:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 02:57:11,905 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.333333333333332) internal successors, (264), 9 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 264 [2024-11-07 02:57:11,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:11,912 INFO L225 Difference]: With dead ends: 2880 [2024-11-07 02:57:11,912 INFO L226 Difference]: Without dead ends: 2145 [2024-11-07 02:57:11,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-07 02:57:11,914 INFO L432 NwaCegarLoop]: 1334 mSDtfsCounter, 744 mSDsluCounter, 8620 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 9954 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:11,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 9954 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:11,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2024-11-07 02:57:11,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 1444. [2024-11-07 02:57:11,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 1.4816354816354815) internal successors, (2138), 1443 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:11,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 2138 transitions. [2024-11-07 02:57:11,949 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 2138 transitions. Word has length 264 [2024-11-07 02:57:11,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:11,950 INFO L471 AbstractCegarLoop]: Abstraction has 1444 states and 2138 transitions. [2024-11-07 02:57:11,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.333333333333332) internal successors, (264), 9 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:11,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 2138 transitions. [2024-11-07 02:57:11,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-07 02:57:11,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:11,954 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:11,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 02:57:11,954 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:11,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:11,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1294230756, now seen corresponding path program 1 times [2024-11-07 02:57:11,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:11,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323229903] [2024-11-07 02:57:11,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:11,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:13,283 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:13,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:13,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323229903] [2024-11-07 02:57:13,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323229903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:13,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:13,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 02:57:13,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12537138] [2024-11-07 02:57:13,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:13,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 02:57:13,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:13,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 02:57:13,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-07 02:57:13,286 INFO L87 Difference]: Start difference. First operand 1444 states and 2138 transitions. Second operand has 11 states, 11 states have (on average 24.09090909090909) internal successors, (265), 11 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:13,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:13,550 INFO L93 Difference]: Finished difference Result 3321 states and 4930 transitions. [2024-11-07 02:57:13,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 02:57:13,551 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 24.09090909090909) internal successors, (265), 11 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 265 [2024-11-07 02:57:13,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:13,558 INFO L225 Difference]: With dead ends: 3321 [2024-11-07 02:57:13,558 INFO L226 Difference]: Without dead ends: 2246 [2024-11-07 02:57:13,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-07 02:57:13,562 INFO L432 NwaCegarLoop]: 696 mSDtfsCounter, 963 mSDsluCounter, 6236 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 6932 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:13,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 6932 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 02:57:13,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2024-11-07 02:57:13,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 1709. [2024-11-07 02:57:13,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1708 states have (on average 1.4818501170960188) internal successors, (2531), 1708 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2531 transitions. [2024-11-07 02:57:13,593 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2531 transitions. Word has length 265 [2024-11-07 02:57:13,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:13,593 INFO L471 AbstractCegarLoop]: Abstraction has 1709 states and 2531 transitions. [2024-11-07 02:57:13,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 24.09090909090909) internal successors, (265), 11 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:13,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2531 transitions. [2024-11-07 02:57:13,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-07 02:57:13,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:13,597 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:13,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 02:57:13,599 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:13,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:13,599 INFO L85 PathProgramCache]: Analyzing trace with hash 2022858584, now seen corresponding path program 1 times [2024-11-07 02:57:13,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:13,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170117474] [2024-11-07 02:57:13,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:13,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:14,889 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:14,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:14,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170117474] [2024-11-07 02:57:14,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170117474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:14,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:14,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 02:57:14,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680101853] [2024-11-07 02:57:14,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:14,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 02:57:14,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:14,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 02:57:14,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:14,890 INFO L87 Difference]: Start difference. First operand 1709 states and 2531 transitions. Second operand has 9 states, 9 states have (on average 29.555555555555557) internal successors, (266), 9 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:15,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:15,000 INFO L93 Difference]: Finished difference Result 3845 states and 5711 transitions. [2024-11-07 02:57:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 02:57:15,001 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.555555555555557) internal successors, (266), 9 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2024-11-07 02:57:15,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:15,010 INFO L225 Difference]: With dead ends: 3845 [2024-11-07 02:57:15,010 INFO L226 Difference]: Without dead ends: 2936 [2024-11-07 02:57:15,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:15,013 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 748 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 4605 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:15,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 4605 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:15,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2024-11-07 02:57:15,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 2932. [2024-11-07 02:57:15,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2932 states, 2931 states have (on average 1.4834527465029) internal successors, (4348), 2931 states have internal predecessors, (4348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:15,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 4348 transitions. [2024-11-07 02:57:15,057 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 4348 transitions. Word has length 266 [2024-11-07 02:57:15,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:15,057 INFO L471 AbstractCegarLoop]: Abstraction has 2932 states and 4348 transitions. [2024-11-07 02:57:15,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.555555555555557) internal successors, (266), 9 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:15,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 4348 transitions. [2024-11-07 02:57:15,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-07 02:57:15,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:15,062 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:15,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 02:57:15,062 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:15,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:15,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1542833270, now seen corresponding path program 1 times [2024-11-07 02:57:15,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:15,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966668824] [2024-11-07 02:57:15,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:15,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:16,082 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:16,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:16,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966668824] [2024-11-07 02:57:16,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966668824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:16,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:16,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 02:57:16,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998343290] [2024-11-07 02:57:16,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:16,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 02:57:16,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:16,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 02:57:16,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-07 02:57:16,086 INFO L87 Difference]: Start difference. First operand 2932 states and 4348 transitions. Second operand has 12 states, 12 states have (on average 22.25) internal successors, (267), 12 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:16,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:16,293 INFO L93 Difference]: Finished difference Result 4235 states and 6275 transitions. [2024-11-07 02:57:16,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 02:57:16,294 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 22.25) internal successors, (267), 12 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 267 [2024-11-07 02:57:16,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:16,302 INFO L225 Difference]: With dead ends: 4235 [2024-11-07 02:57:16,302 INFO L226 Difference]: Without dead ends: 3006 [2024-11-07 02:57:16,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-07 02:57:16,304 INFO L432 NwaCegarLoop]: 754 mSDtfsCounter, 112 mSDsluCounter, 5980 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 6734 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:16,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 6734 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:16,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2024-11-07 02:57:16,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 2944. [2024-11-07 02:57:16,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2943 states have (on average 1.4825008494733265) internal successors, (4363), 2943 states have internal predecessors, (4363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:16,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 4363 transitions. [2024-11-07 02:57:16,345 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 4363 transitions. Word has length 267 [2024-11-07 02:57:16,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:16,346 INFO L471 AbstractCegarLoop]: Abstraction has 2944 states and 4363 transitions. [2024-11-07 02:57:16,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 22.25) internal successors, (267), 12 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:16,346 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 4363 transitions. [2024-11-07 02:57:16,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-07 02:57:16,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:16,350 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2024-11-07 02:57:16,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 02:57:16,351 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:16,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:16,351 INFO L85 PathProgramCache]: Analyzing trace with hash 2096475726, now seen corresponding path program 1 times [2024-11-07 02:57:16,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:16,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377271537] [2024-11-07 02:57:16,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:16,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:18,030 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:18,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:18,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377271537] [2024-11-07 02:57:18,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377271537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:18,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:18,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 02:57:18,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155286114] [2024-11-07 02:57:18,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:18,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 02:57:18,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:18,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 02:57:18,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-07 02:57:18,033 INFO L87 Difference]: Start difference. First operand 2944 states and 4363 transitions. Second operand has 11 states, 11 states have (on average 24.272727272727273) internal successors, (267), 11 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:18,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:18,241 INFO L93 Difference]: Finished difference Result 7322 states and 10868 transitions. [2024-11-07 02:57:18,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 02:57:18,242 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 24.272727272727273) internal successors, (267), 11 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 267 [2024-11-07 02:57:18,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:18,253 INFO L225 Difference]: With dead ends: 7322 [2024-11-07 02:57:18,254 INFO L226 Difference]: Without dead ends: 4472 [2024-11-07 02:57:18,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-07 02:57:18,258 INFO L432 NwaCegarLoop]: 694 mSDtfsCounter, 522 mSDsluCounter, 5602 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 6296 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:18,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 6296 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:18,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4472 states. [2024-11-07 02:57:18,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4472 to 3036. [2024-11-07 02:57:18,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3036 states, 3035 states have (on average 1.4817133443163097) internal successors, (4497), 3035 states have internal predecessors, (4497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:18,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 4497 transitions. [2024-11-07 02:57:18,315 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 4497 transitions. Word has length 267 [2024-11-07 02:57:18,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:18,316 INFO L471 AbstractCegarLoop]: Abstraction has 3036 states and 4497 transitions. [2024-11-07 02:57:18,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 24.272727272727273) internal successors, (267), 11 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:18,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 4497 transitions. [2024-11-07 02:57:18,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-07 02:57:18,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:18,320 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2024-11-07 02:57:18,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 02:57:18,321 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:18,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:18,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1435903704, now seen corresponding path program 1 times [2024-11-07 02:57:18,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:18,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124866220] [2024-11-07 02:57:18,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:18,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:18,640 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:18,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:18,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124866220] [2024-11-07 02:57:18,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124866220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:18,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:18,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:18,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056170210] [2024-11-07 02:57:18,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:18,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:18,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:18,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:18,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:18,642 INFO L87 Difference]: Start difference. First operand 3036 states and 4497 transitions. Second operand has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:18,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:18,672 INFO L93 Difference]: Finished difference Result 5348 states and 7930 transitions. [2024-11-07 02:57:18,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:18,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 267 [2024-11-07 02:57:18,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:18,681 INFO L225 Difference]: With dead ends: 5348 [2024-11-07 02:57:18,681 INFO L226 Difference]: Without dead ends: 3072 [2024-11-07 02:57:18,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:18,687 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 4 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:18,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2836 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:18,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2024-11-07 02:57:18,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 3072. [2024-11-07 02:57:18,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 3071 states have (on average 1.4799739498534679) internal successors, (4545), 3071 states have internal predecessors, (4545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:18,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 4545 transitions. [2024-11-07 02:57:18,730 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 4545 transitions. Word has length 267 [2024-11-07 02:57:18,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:18,730 INFO L471 AbstractCegarLoop]: Abstraction has 3072 states and 4545 transitions. [2024-11-07 02:57:18,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:18,731 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 4545 transitions. [2024-11-07 02:57:18,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-07 02:57:18,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:18,735 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2024-11-07 02:57:18,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 02:57:18,736 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:18,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:18,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1732038881, now seen corresponding path program 1 times [2024-11-07 02:57:18,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:18,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959792679] [2024-11-07 02:57:18,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:18,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:20,214 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:20,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:20,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959792679] [2024-11-07 02:57:20,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959792679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:20,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:20,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 02:57:20,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919285330] [2024-11-07 02:57:20,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:20,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 02:57:20,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:20,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 02:57:20,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-07 02:57:20,217 INFO L87 Difference]: Start difference. First operand 3072 states and 4545 transitions. Second operand has 10 states, 10 states have (on average 26.8) internal successors, (268), 10 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:20,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:20,362 INFO L93 Difference]: Finished difference Result 5910 states and 8748 transitions. [2024-11-07 02:57:20,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 02:57:20,363 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.8) internal successors, (268), 10 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 268 [2024-11-07 02:57:20,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:20,373 INFO L225 Difference]: With dead ends: 5910 [2024-11-07 02:57:20,373 INFO L226 Difference]: Without dead ends: 4550 [2024-11-07 02:57:20,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-07 02:57:20,377 INFO L432 NwaCegarLoop]: 691 mSDtfsCounter, 1162 mSDsluCounter, 4722 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 5413 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:20,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 5413 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:20,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2024-11-07 02:57:20,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 4328. [2024-11-07 02:57:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4328 states, 4327 states have (on average 1.479315923272475) internal successors, (6401), 4327 states have internal predecessors, (6401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:20,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4328 states to 4328 states and 6401 transitions. [2024-11-07 02:57:20,439 INFO L78 Accepts]: Start accepts. Automaton has 4328 states and 6401 transitions. Word has length 268 [2024-11-07 02:57:20,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:20,440 INFO L471 AbstractCegarLoop]: Abstraction has 4328 states and 6401 transitions. [2024-11-07 02:57:20,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.8) internal successors, (268), 10 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:20,440 INFO L276 IsEmpty]: Start isEmpty. Operand 4328 states and 6401 transitions. [2024-11-07 02:57:20,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-07 02:57:20,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:20,447 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:20,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 02:57:20,447 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:20,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:20,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1692277695, now seen corresponding path program 1 times [2024-11-07 02:57:20,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:20,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823925632] [2024-11-07 02:57:20,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:20,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:20,815 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:20,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:20,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823925632] [2024-11-07 02:57:20,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823925632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:20,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:20,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:20,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661316436] [2024-11-07 02:57:20,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:20,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:20,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:20,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:20,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:20,818 INFO L87 Difference]: Start difference. First operand 4328 states and 6401 transitions. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:21,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:21,020 INFO L93 Difference]: Finished difference Result 6916 states and 10229 transitions. [2024-11-07 02:57:21,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 02:57:21,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 269 [2024-11-07 02:57:21,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:21,031 INFO L225 Difference]: With dead ends: 6916 [2024-11-07 02:57:21,031 INFO L226 Difference]: Without dead ends: 4344 [2024-11-07 02:57:21,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:21,036 INFO L432 NwaCegarLoop]: 1181 mSDtfsCounter, 572 mSDsluCounter, 4148 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 5329 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:21,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 5329 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 02:57:21,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4344 states. [2024-11-07 02:57:21,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4344 to 4336. [2024-11-07 02:57:21,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4336 states, 4335 states have (on average 1.4784313725490197) internal successors, (6409), 4335 states have internal predecessors, (6409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:21,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 6409 transitions. [2024-11-07 02:57:21,083 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 6409 transitions. Word has length 269 [2024-11-07 02:57:21,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:21,084 INFO L471 AbstractCegarLoop]: Abstraction has 4336 states and 6409 transitions. [2024-11-07 02:57:21,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:21,084 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 6409 transitions. [2024-11-07 02:57:21,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-07 02:57:21,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:21,090 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:21,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 02:57:21,090 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:21,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:21,091 INFO L85 PathProgramCache]: Analyzing trace with hash -969635934, now seen corresponding path program 1 times [2024-11-07 02:57:21,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:21,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372840599] [2024-11-07 02:57:21,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:21,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:22,544 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:22,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:22,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372840599] [2024-11-07 02:57:22,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372840599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:22,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:22,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 02:57:22,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288940020] [2024-11-07 02:57:22,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:22,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 02:57:22,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:22,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 02:57:22,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:22,545 INFO L87 Difference]: Start difference. First operand 4336 states and 6409 transitions. Second operand has 9 states, 9 states have (on average 29.88888888888889) internal successors, (269), 9 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:22,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:22,670 INFO L93 Difference]: Finished difference Result 6282 states and 9278 transitions. [2024-11-07 02:57:22,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 02:57:22,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.88888888888889) internal successors, (269), 9 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 269 [2024-11-07 02:57:22,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:22,680 INFO L225 Difference]: With dead ends: 6282 [2024-11-07 02:57:22,680 INFO L226 Difference]: Without dead ends: 4354 [2024-11-07 02:57:22,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-07 02:57:22,685 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 784 mSDsluCounter, 4412 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 5111 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:22,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 5111 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:22,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4354 states. [2024-11-07 02:57:22,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4354 to 4354. [2024-11-07 02:57:22,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4354 states, 4353 states have (on average 1.4750746611532277) internal successors, (6421), 4353 states have internal predecessors, (6421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:22,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4354 states to 4354 states and 6421 transitions. [2024-11-07 02:57:22,726 INFO L78 Accepts]: Start accepts. Automaton has 4354 states and 6421 transitions. Word has length 269 [2024-11-07 02:57:22,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:22,727 INFO L471 AbstractCegarLoop]: Abstraction has 4354 states and 6421 transitions. [2024-11-07 02:57:22,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.88888888888889) internal successors, (269), 9 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:22,727 INFO L276 IsEmpty]: Start isEmpty. Operand 4354 states and 6421 transitions. [2024-11-07 02:57:22,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-07 02:57:22,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:22,734 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:22,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 02:57:22,734 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:22,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:22,735 INFO L85 PathProgramCache]: Analyzing trace with hash -196872216, now seen corresponding path program 1 times [2024-11-07 02:57:22,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:22,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864192489] [2024-11-07 02:57:22,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:22,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:23,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:23,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864192489] [2024-11-07 02:57:23,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864192489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:23,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:23,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:23,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166665176] [2024-11-07 02:57:23,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:23,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:23,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:23,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:23,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:23,047 INFO L87 Difference]: Start difference. First operand 4354 states and 6421 transitions. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:23,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:23,078 INFO L93 Difference]: Finished difference Result 7272 states and 10737 transitions. [2024-11-07 02:57:23,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:23,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 269 [2024-11-07 02:57:23,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:23,085 INFO L225 Difference]: With dead ends: 7272 [2024-11-07 02:57:23,085 INFO L226 Difference]: Without dead ends: 4372 [2024-11-07 02:57:23,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:23,088 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 4 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:23,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3542 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:23,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4372 states. [2024-11-07 02:57:23,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4372 to 4372. [2024-11-07 02:57:23,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4372 states, 4371 states have (on average 1.4744909631663234) internal successors, (6445), 4371 states have internal predecessors, (6445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:23,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4372 states to 4372 states and 6445 transitions. [2024-11-07 02:57:23,127 INFO L78 Accepts]: Start accepts. Automaton has 4372 states and 6445 transitions. Word has length 269 [2024-11-07 02:57:23,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:23,127 INFO L471 AbstractCegarLoop]: Abstraction has 4372 states and 6445 transitions. [2024-11-07 02:57:23,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:23,127 INFO L276 IsEmpty]: Start isEmpty. Operand 4372 states and 6445 transitions. [2024-11-07 02:57:23,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-07 02:57:23,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:23,133 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:23,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 02:57:23,133 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:23,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:23,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1835971805, now seen corresponding path program 1 times [2024-11-07 02:57:23,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:23,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478782651] [2024-11-07 02:57:23,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:23,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:24,324 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:24,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:24,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478782651] [2024-11-07 02:57:24,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478782651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:24,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:24,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 02:57:24,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426591514] [2024-11-07 02:57:24,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:24,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 02:57:24,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:24,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 02:57:24,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-07 02:57:24,325 INFO L87 Difference]: Start difference. First operand 4372 states and 6445 transitions. Second operand has 12 states, 12 states have (on average 22.5) internal successors, (270), 12 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:24,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:24,497 INFO L93 Difference]: Finished difference Result 5707 states and 8408 transitions. [2024-11-07 02:57:24,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 02:57:24,498 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 22.5) internal successors, (270), 12 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2024-11-07 02:57:24,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:24,505 INFO L225 Difference]: With dead ends: 5707 [2024-11-07 02:57:24,505 INFO L226 Difference]: Without dead ends: 4438 [2024-11-07 02:57:24,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-07 02:57:24,508 INFO L432 NwaCegarLoop]: 755 mSDtfsCounter, 111 mSDsluCounter, 7470 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 8225 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:24,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 8225 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:24,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4438 states. [2024-11-07 02:57:24,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4438 to 4378. [2024-11-07 02:57:24,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4378 states, 4377 states have (on average 1.4742974640164497) internal successors, (6453), 4377 states have internal predecessors, (6453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:24,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4378 states to 4378 states and 6453 transitions. [2024-11-07 02:57:24,548 INFO L78 Accepts]: Start accepts. Automaton has 4378 states and 6453 transitions. Word has length 270 [2024-11-07 02:57:24,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:24,548 INFO L471 AbstractCegarLoop]: Abstraction has 4378 states and 6453 transitions. [2024-11-07 02:57:24,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 22.5) internal successors, (270), 12 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:24,548 INFO L276 IsEmpty]: Start isEmpty. Operand 4378 states and 6453 transitions. [2024-11-07 02:57:24,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-07 02:57:24,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:24,554 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:24,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 02:57:24,554 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:24,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:24,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1449365448, now seen corresponding path program 1 times [2024-11-07 02:57:24,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:24,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102376368] [2024-11-07 02:57:24,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:24,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:26,105 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:26,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:26,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102376368] [2024-11-07 02:57:26,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102376368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:26,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:26,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-07 02:57:26,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518358034] [2024-11-07 02:57:26,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:26,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 02:57:26,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:26,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 02:57:26,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-11-07 02:57:26,106 INFO L87 Difference]: Start difference. First operand 4378 states and 6453 transitions. Second operand has 17 states, 17 states have (on average 15.882352941176471) internal successors, (270), 17 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:26,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:26,534 INFO L93 Difference]: Finished difference Result 5895 states and 8673 transitions. [2024-11-07 02:57:26,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 02:57:26,535 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 15.882352941176471) internal successors, (270), 17 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2024-11-07 02:57:26,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:26,542 INFO L225 Difference]: With dead ends: 5895 [2024-11-07 02:57:26,542 INFO L226 Difference]: Without dead ends: 4577 [2024-11-07 02:57:26,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2024-11-07 02:57:26,545 INFO L432 NwaCegarLoop]: 730 mSDtfsCounter, 122 mSDsluCounter, 8844 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 9574 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:26,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 9574 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 02:57:26,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4577 states. [2024-11-07 02:57:26,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4577 to 4501. [2024-11-07 02:57:26,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4501 states, 4500 states have (on average 1.4733333333333334) internal successors, (6630), 4500 states have internal predecessors, (6630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:26,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4501 states to 4501 states and 6630 transitions. [2024-11-07 02:57:26,603 INFO L78 Accepts]: Start accepts. Automaton has 4501 states and 6630 transitions. Word has length 270 [2024-11-07 02:57:26,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:26,603 INFO L471 AbstractCegarLoop]: Abstraction has 4501 states and 6630 transitions. [2024-11-07 02:57:26,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 15.882352941176471) internal successors, (270), 17 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:26,604 INFO L276 IsEmpty]: Start isEmpty. Operand 4501 states and 6630 transitions. [2024-11-07 02:57:26,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-07 02:57:26,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:26,611 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:26,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-07 02:57:26,612 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:26,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:26,612 INFO L85 PathProgramCache]: Analyzing trace with hash 662312646, now seen corresponding path program 1 times [2024-11-07 02:57:26,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:26,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228948508] [2024-11-07 02:57:26,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:26,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:26,942 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:26,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:26,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228948508] [2024-11-07 02:57:26,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228948508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:26,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:26,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:26,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32163820] [2024-11-07 02:57:26,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:26,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:26,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:26,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:26,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:26,944 INFO L87 Difference]: Start difference. First operand 4501 states and 6630 transitions. Second operand has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:26,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:26,970 INFO L93 Difference]: Finished difference Result 5966 states and 8784 transitions. [2024-11-07 02:57:26,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:26,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2024-11-07 02:57:26,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:26,976 INFO L225 Difference]: With dead ends: 5966 [2024-11-07 02:57:26,976 INFO L226 Difference]: Without dead ends: 4615 [2024-11-07 02:57:26,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:26,979 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 34 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2837 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:26,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2837 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:26,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4615 states. [2024-11-07 02:57:27,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4615 to 4615. [2024-11-07 02:57:27,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4615 states, 4614 states have (on average 1.4718248807975727) internal successors, (6791), 4614 states have internal predecessors, (6791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:27,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4615 states to 4615 states and 6791 transitions. [2024-11-07 02:57:27,021 INFO L78 Accepts]: Start accepts. Automaton has 4615 states and 6791 transitions. Word has length 270 [2024-11-07 02:57:27,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:27,021 INFO L471 AbstractCegarLoop]: Abstraction has 4615 states and 6791 transitions. [2024-11-07 02:57:27,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:27,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4615 states and 6791 transitions. [2024-11-07 02:57:27,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-07 02:57:27,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:27,026 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:27,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-07 02:57:27,028 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:27,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:27,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1444587725, now seen corresponding path program 1 times [2024-11-07 02:57:27,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:27,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316831977] [2024-11-07 02:57:27,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:27,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:27,920 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:27,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:27,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316831977] [2024-11-07 02:57:27,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316831977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:27,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:27,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:57:27,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559848044] [2024-11-07 02:57:27,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:27,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:57:27,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:27,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:57:27,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:27,921 INFO L87 Difference]: Start difference. First operand 4615 states and 6791 transitions. Second operand has 7 states, 7 states have (on average 38.57142857142857) internal successors, (270), 7 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:27,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:27,970 INFO L93 Difference]: Finished difference Result 6066 states and 8928 transitions. [2024-11-07 02:57:27,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:57:27,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.57142857142857) internal successors, (270), 7 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2024-11-07 02:57:27,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:27,977 INFO L225 Difference]: With dead ends: 6066 [2024-11-07 02:57:27,977 INFO L226 Difference]: Without dead ends: 4635 [2024-11-07 02:57:27,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:27,980 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 475 mSDsluCounter, 2788 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 3488 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:27,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 3488 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:27,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4635 states. [2024-11-07 02:57:28,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4635 to 4635. [2024-11-07 02:57:28,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4635 states, 4634 states have (on average 1.4706517047906775) internal successors, (6815), 4634 states have internal predecessors, (6815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:28,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4635 states to 4635 states and 6815 transitions. [2024-11-07 02:57:28,021 INFO L78 Accepts]: Start accepts. Automaton has 4635 states and 6815 transitions. Word has length 270 [2024-11-07 02:57:28,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:28,021 INFO L471 AbstractCegarLoop]: Abstraction has 4635 states and 6815 transitions. [2024-11-07 02:57:28,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.57142857142857) internal successors, (270), 7 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:28,021 INFO L276 IsEmpty]: Start isEmpty. Operand 4635 states and 6815 transitions. [2024-11-07 02:57:28,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-07 02:57:28,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:28,026 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:28,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-07 02:57:28,026 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:28,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:28,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1491934561, now seen corresponding path program 1 times [2024-11-07 02:57:28,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:28,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238812627] [2024-11-07 02:57:28,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:28,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:28,979 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:28,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:28,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238812627] [2024-11-07 02:57:28,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238812627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:28,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:28,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:57:28,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793685168] [2024-11-07 02:57:28,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:28,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:57:28,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:28,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:57:28,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:28,980 INFO L87 Difference]: Start difference. First operand 4635 states and 6815 transitions. Second operand has 7 states, 7 states have (on average 38.714285714285715) internal successors, (271), 7 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:29,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:29,032 INFO L93 Difference]: Finished difference Result 6246 states and 9172 transitions. [2024-11-07 02:57:29,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:57:29,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.714285714285715) internal successors, (271), 7 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2024-11-07 02:57:29,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:29,036 INFO L225 Difference]: With dead ends: 6246 [2024-11-07 02:57:29,036 INFO L226 Difference]: Without dead ends: 4655 [2024-11-07 02:57:29,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:29,038 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 504 mSDsluCounter, 2785 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 3485 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:29,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 3485 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:29,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4655 states. [2024-11-07 02:57:29,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4655 to 4655. [2024-11-07 02:57:29,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4655 states, 4654 states have (on average 1.4694886119467125) internal successors, (6839), 4654 states have internal predecessors, (6839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:29,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4655 states to 4655 states and 6839 transitions. [2024-11-07 02:57:29,089 INFO L78 Accepts]: Start accepts. Automaton has 4655 states and 6839 transitions. Word has length 271 [2024-11-07 02:57:29,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:29,089 INFO L471 AbstractCegarLoop]: Abstraction has 4655 states and 6839 transitions. [2024-11-07 02:57:29,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.714285714285715) internal successors, (271), 7 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:29,090 INFO L276 IsEmpty]: Start isEmpty. Operand 4655 states and 6839 transitions. [2024-11-07 02:57:29,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-07 02:57:29,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:29,094 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:29,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-07 02:57:29,094 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:29,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:29,095 INFO L85 PathProgramCache]: Analyzing trace with hash -761204717, now seen corresponding path program 1 times [2024-11-07 02:57:29,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:29,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598866994] [2024-11-07 02:57:29,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:29,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:30,314 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:30,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:30,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598866994] [2024-11-07 02:57:30,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598866994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:30,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:30,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 02:57:30,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480864519] [2024-11-07 02:57:30,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:30,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 02:57:30,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:30,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 02:57:30,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:57:30,315 INFO L87 Difference]: Start difference. First operand 4655 states and 6839 transitions. Second operand has 8 states, 8 states have (on average 33.875) internal successors, (271), 8 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:30,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:30,416 INFO L93 Difference]: Finished difference Result 9160 states and 13472 transitions. [2024-11-07 02:57:30,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 02:57:30,417 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 33.875) internal successors, (271), 8 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2024-11-07 02:57:30,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:30,421 INFO L225 Difference]: With dead ends: 9160 [2024-11-07 02:57:30,421 INFO L226 Difference]: Without dead ends: 4823 [2024-11-07 02:57:30,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-07 02:57:30,426 INFO L432 NwaCegarLoop]: 702 mSDtfsCounter, 463 mSDsluCounter, 3116 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:30,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 3818 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:30,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4823 states. [2024-11-07 02:57:30,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4823 to 4805. [2024-11-07 02:57:30,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4805 states, 4804 states have (on average 1.4673189009159033) internal successors, (7049), 4804 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:30,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4805 states to 4805 states and 7049 transitions. [2024-11-07 02:57:30,474 INFO L78 Accepts]: Start accepts. Automaton has 4805 states and 7049 transitions. Word has length 271 [2024-11-07 02:57:30,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:30,474 INFO L471 AbstractCegarLoop]: Abstraction has 4805 states and 7049 transitions. [2024-11-07 02:57:30,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 33.875) internal successors, (271), 8 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 4805 states and 7049 transitions. [2024-11-07 02:57:30,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-07 02:57:30,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:30,479 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:30,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-07 02:57:30,480 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:30,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:30,480 INFO L85 PathProgramCache]: Analyzing trace with hash -447666747, now seen corresponding path program 1 times [2024-11-07 02:57:30,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:30,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159911985] [2024-11-07 02:57:30,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:30,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:32,163 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:32,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:32,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159911985] [2024-11-07 02:57:32,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159911985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:32,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:32,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 02:57:32,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219055773] [2024-11-07 02:57:32,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:32,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 02:57:32,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:32,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 02:57:32,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:32,165 INFO L87 Difference]: Start difference. First operand 4805 states and 7049 transitions. Second operand has 9 states, 9 states have (on average 30.22222222222222) internal successors, (272), 9 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:32,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:32,286 INFO L93 Difference]: Finished difference Result 9904 states and 14566 transitions. [2024-11-07 02:57:32,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 02:57:32,286 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 30.22222222222222) internal successors, (272), 9 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 272 [2024-11-07 02:57:32,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:32,294 INFO L225 Difference]: With dead ends: 9904 [2024-11-07 02:57:32,294 INFO L226 Difference]: Without dead ends: 7873 [2024-11-07 02:57:32,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:32,298 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 583 mSDsluCounter, 4427 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 5124 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:32,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 5124 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:32,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7873 states. [2024-11-07 02:57:32,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7873 to 7857. [2024-11-07 02:57:32,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7857 states, 7856 states have (on average 1.4698319755600815) internal successors, (11547), 7856 states have internal predecessors, (11547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:32,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7857 states to 7857 states and 11547 transitions. [2024-11-07 02:57:32,361 INFO L78 Accepts]: Start accepts. Automaton has 7857 states and 11547 transitions. Word has length 272 [2024-11-07 02:57:32,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:32,361 INFO L471 AbstractCegarLoop]: Abstraction has 7857 states and 11547 transitions. [2024-11-07 02:57:32,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 30.22222222222222) internal successors, (272), 9 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:32,362 INFO L276 IsEmpty]: Start isEmpty. Operand 7857 states and 11547 transitions. [2024-11-07 02:57:32,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-07 02:57:32,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:32,369 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:32,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-07 02:57:32,369 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:32,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:32,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1483580766, now seen corresponding path program 1 times [2024-11-07 02:57:32,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:32,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69253148] [2024-11-07 02:57:32,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:32,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:32,661 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:32,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:32,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69253148] [2024-11-07 02:57:32,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69253148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:32,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:32,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:32,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482481584] [2024-11-07 02:57:32,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:32,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:32,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:32,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:32,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:32,662 INFO L87 Difference]: Start difference. First operand 7857 states and 11547 transitions. Second operand has 5 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:32,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:32,707 INFO L93 Difference]: Finished difference Result 12996 states and 19108 transitions. [2024-11-07 02:57:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:32,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 272 [2024-11-07 02:57:32,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:32,716 INFO L225 Difference]: With dead ends: 12996 [2024-11-07 02:57:32,716 INFO L226 Difference]: Without dead ends: 7929 [2024-11-07 02:57:32,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:32,724 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 4 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:32,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2832 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:32,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7929 states. [2024-11-07 02:57:32,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7929 to 7929. [2024-11-07 02:57:32,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7929 states, 7928 states have (on average 1.4685923309788094) internal successors, (11643), 7928 states have internal predecessors, (11643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:32,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7929 states to 7929 states and 11643 transitions. [2024-11-07 02:57:32,826 INFO L78 Accepts]: Start accepts. Automaton has 7929 states and 11643 transitions. Word has length 272 [2024-11-07 02:57:32,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:32,826 INFO L471 AbstractCegarLoop]: Abstraction has 7929 states and 11643 transitions. [2024-11-07 02:57:32,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:32,827 INFO L276 IsEmpty]: Start isEmpty. Operand 7929 states and 11643 transitions. [2024-11-07 02:57:32,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-07 02:57:32,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:32,834 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:32,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-07 02:57:32,834 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:32,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:32,835 INFO L85 PathProgramCache]: Analyzing trace with hash -908049038, now seen corresponding path program 1 times [2024-11-07 02:57:32,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:32,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846021535] [2024-11-07 02:57:32,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:32,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:35,419 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:35,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:35,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846021535] [2024-11-07 02:57:35,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846021535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:35,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:35,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-07 02:57:35,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850991023] [2024-11-07 02:57:35,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:35,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 02:57:35,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:35,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 02:57:35,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-07 02:57:35,421 INFO L87 Difference]: Start difference. First operand 7929 states and 11643 transitions. Second operand has 15 states, 15 states have (on average 18.2) internal successors, (273), 15 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:35,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:35,756 INFO L93 Difference]: Finished difference Result 10294 states and 15106 transitions. [2024-11-07 02:57:35,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 02:57:35,756 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 18.2) internal successors, (273), 15 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2024-11-07 02:57:35,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:35,764 INFO L225 Difference]: With dead ends: 10294 [2024-11-07 02:57:35,764 INFO L226 Difference]: Without dead ends: 7991 [2024-11-07 02:57:35,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2024-11-07 02:57:35,767 INFO L432 NwaCegarLoop]: 749 mSDtfsCounter, 99 mSDsluCounter, 8873 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 9622 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:35,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 9622 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 02:57:35,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7991 states. [2024-11-07 02:57:35,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7991 to 7932. [2024-11-07 02:57:35,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7932 states, 7931 states have (on average 1.4684150800655655) internal successors, (11646), 7931 states have internal predecessors, (11646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:35,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7932 states to 7932 states and 11646 transitions. [2024-11-07 02:57:35,830 INFO L78 Accepts]: Start accepts. Automaton has 7932 states and 11646 transitions. Word has length 273 [2024-11-07 02:57:35,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:35,830 INFO L471 AbstractCegarLoop]: Abstraction has 7932 states and 11646 transitions. [2024-11-07 02:57:35,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 18.2) internal successors, (273), 15 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:35,830 INFO L276 IsEmpty]: Start isEmpty. Operand 7932 states and 11646 transitions. [2024-11-07 02:57:35,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-07 02:57:35,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:35,836 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:35,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-07 02:57:35,836 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:35,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:35,836 INFO L85 PathProgramCache]: Analyzing trace with hash -658724679, now seen corresponding path program 1 times [2024-11-07 02:57:35,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:35,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286706764] [2024-11-07 02:57:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:35,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:37,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:37,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286706764] [2024-11-07 02:57:37,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286706764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:37,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:37,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 02:57:37,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246992615] [2024-11-07 02:57:37,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:37,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 02:57:37,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:37,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 02:57:37,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 02:57:37,001 INFO L87 Difference]: Start difference. First operand 7932 states and 11646 transitions. Second operand has 10 states, 10 states have (on average 27.3) internal successors, (273), 10 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:37,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:37,131 INFO L93 Difference]: Finished difference Result 12218 states and 17936 transitions. [2024-11-07 02:57:37,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 02:57:37,132 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 27.3) internal successors, (273), 10 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2024-11-07 02:57:37,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:37,142 INFO L225 Difference]: With dead ends: 12218 [2024-11-07 02:57:37,142 INFO L226 Difference]: Without dead ends: 9912 [2024-11-07 02:57:37,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-07 02:57:37,146 INFO L432 NwaCegarLoop]: 1238 mSDtfsCounter, 666 mSDsluCounter, 9319 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 10557 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:37,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 10557 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:37,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9912 states. [2024-11-07 02:57:37,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9912 to 7953. [2024-11-07 02:57:37,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7953 states, 7952 states have (on average 1.4679325955734406) internal successors, (11673), 7952 states have internal predecessors, (11673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:37,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7953 states to 7953 states and 11673 transitions. [2024-11-07 02:57:37,217 INFO L78 Accepts]: Start accepts. Automaton has 7953 states and 11673 transitions. Word has length 273 [2024-11-07 02:57:37,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:37,218 INFO L471 AbstractCegarLoop]: Abstraction has 7953 states and 11673 transitions. [2024-11-07 02:57:37,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.3) internal successors, (273), 10 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:37,218 INFO L276 IsEmpty]: Start isEmpty. Operand 7953 states and 11673 transitions. [2024-11-07 02:57:37,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-07 02:57:37,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:37,225 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:37,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-07 02:57:37,225 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:37,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:37,226 INFO L85 PathProgramCache]: Analyzing trace with hash 750416717, now seen corresponding path program 1 times [2024-11-07 02:57:37,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:37,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284644201] [2024-11-07 02:57:37,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:37,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:38,754 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:38,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:38,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284644201] [2024-11-07 02:57:38,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284644201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:38,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:38,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-07 02:57:38,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898403857] [2024-11-07 02:57:38,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:38,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 02:57:38,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:38,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 02:57:38,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-07 02:57:38,755 INFO L87 Difference]: Start difference. First operand 7953 states and 11673 transitions. Second operand has 14 states, 14 states have (on average 19.5) internal successors, (273), 14 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:38,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:38,971 INFO L93 Difference]: Finished difference Result 10350 states and 15177 transitions. [2024-11-07 02:57:38,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 02:57:38,971 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.5) internal successors, (273), 14 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2024-11-07 02:57:38,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:38,978 INFO L225 Difference]: With dead ends: 10350 [2024-11-07 02:57:38,978 INFO L226 Difference]: Without dead ends: 8023 [2024-11-07 02:57:38,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-07 02:57:38,982 INFO L432 NwaCegarLoop]: 760 mSDtfsCounter, 120 mSDsluCounter, 7522 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 8282 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:38,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 8282 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:38,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8023 states. [2024-11-07 02:57:39,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8023 to 7955. [2024-11-07 02:57:39,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7955 states, 7954 states have (on average 1.4679406587880313) internal successors, (11676), 7954 states have internal predecessors, (11676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:39,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7955 states to 7955 states and 11676 transitions. [2024-11-07 02:57:39,051 INFO L78 Accepts]: Start accepts. Automaton has 7955 states and 11676 transitions. Word has length 273 [2024-11-07 02:57:39,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:39,051 INFO L471 AbstractCegarLoop]: Abstraction has 7955 states and 11676 transitions. [2024-11-07 02:57:39,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.5) internal successors, (273), 14 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:39,051 INFO L276 IsEmpty]: Start isEmpty. Operand 7955 states and 11676 transitions. [2024-11-07 02:57:39,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-07 02:57:39,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:39,058 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:39,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-07 02:57:39,058 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:39,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:39,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1095719997, now seen corresponding path program 1 times [2024-11-07 02:57:39,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:39,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586632741] [2024-11-07 02:57:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:39,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:39,346 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:39,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:39,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586632741] [2024-11-07 02:57:39,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586632741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:39,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:39,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:39,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233713201] [2024-11-07 02:57:39,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:39,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:39,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:39,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:39,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:39,347 INFO L87 Difference]: Start difference. First operand 7955 states and 11676 transitions. Second operand has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:39,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:39,376 INFO L93 Difference]: Finished difference Result 10376 states and 15218 transitions. [2024-11-07 02:57:39,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:39,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2024-11-07 02:57:39,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:39,385 INFO L225 Difference]: With dead ends: 10376 [2024-11-07 02:57:39,385 INFO L226 Difference]: Without dead ends: 8047 [2024-11-07 02:57:39,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:39,389 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 15 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:39,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2833 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:39,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8047 states. [2024-11-07 02:57:39,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8047 to 8047. [2024-11-07 02:57:39,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8047 states, 8046 states have (on average 1.466567238379319) internal successors, (11800), 8046 states have internal predecessors, (11800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:39,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8047 states to 8047 states and 11800 transitions. [2024-11-07 02:57:39,453 INFO L78 Accepts]: Start accepts. Automaton has 8047 states and 11800 transitions. Word has length 273 [2024-11-07 02:57:39,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:39,453 INFO L471 AbstractCegarLoop]: Abstraction has 8047 states and 11800 transitions. [2024-11-07 02:57:39,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:39,454 INFO L276 IsEmpty]: Start isEmpty. Operand 8047 states and 11800 transitions. [2024-11-07 02:57:39,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-07 02:57:39,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:39,460 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:39,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-07 02:57:39,460 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:39,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:39,460 INFO L85 PathProgramCache]: Analyzing trace with hash -477282788, now seen corresponding path program 1 times [2024-11-07 02:57:39,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:39,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657641331] [2024-11-07 02:57:39,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:39,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:39,823 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:39,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:39,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657641331] [2024-11-07 02:57:39,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657641331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:39,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:39,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:39,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308792583] [2024-11-07 02:57:39,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:39,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:39,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:39,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:39,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:39,824 INFO L87 Difference]: Start difference. First operand 8047 states and 11800 transitions. Second operand has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:39,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:39,916 INFO L93 Difference]: Finished difference Result 10472 states and 15346 transitions. [2024-11-07 02:57:39,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:57:39,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2024-11-07 02:57:39,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:39,924 INFO L225 Difference]: With dead ends: 10472 [2024-11-07 02:57:39,924 INFO L226 Difference]: Without dead ends: 8063 [2024-11-07 02:57:39,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:39,928 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 0 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:39,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2747 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:39,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8063 states. [2024-11-07 02:57:39,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8063 to 8063. [2024-11-07 02:57:39,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8063 states, 8062 states have (on average 1.4656412800793848) internal successors, (11816), 8062 states have internal predecessors, (11816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:39,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8063 states to 8063 states and 11816 transitions. [2024-11-07 02:57:39,992 INFO L78 Accepts]: Start accepts. Automaton has 8063 states and 11816 transitions. Word has length 273 [2024-11-07 02:57:39,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:39,992 INFO L471 AbstractCegarLoop]: Abstraction has 8063 states and 11816 transitions. [2024-11-07 02:57:39,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:39,992 INFO L276 IsEmpty]: Start isEmpty. Operand 8063 states and 11816 transitions. [2024-11-07 02:57:39,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-07 02:57:39,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:39,999 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:39,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-07 02:57:39,999 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:39,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:39,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1243066894, now seen corresponding path program 1 times [2024-11-07 02:57:39,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:39,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579575080] [2024-11-07 02:57:39,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:39,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:40,505 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:40,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:40,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579575080] [2024-11-07 02:57:40,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579575080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:40,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:40,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:40,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948119489] [2024-11-07 02:57:40,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:40,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:40,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:40,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:40,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:40,507 INFO L87 Difference]: Start difference. First operand 8063 states and 11816 transitions. Second operand has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:40,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:40,553 INFO L93 Difference]: Finished difference Result 11000 states and 16098 transitions. [2024-11-07 02:57:40,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:57:40,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2024-11-07 02:57:40,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:40,562 INFO L225 Difference]: With dead ends: 11000 [2024-11-07 02:57:40,562 INFO L226 Difference]: Without dead ends: 8527 [2024-11-07 02:57:40,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:40,568 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 131 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 3539 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:40,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 3539 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:40,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8527 states. [2024-11-07 02:57:40,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8527 to 8479. [2024-11-07 02:57:40,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8479 states, 8478 states have (on average 1.464968152866242) internal successors, (12420), 8478 states have internal predecessors, (12420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8479 states to 8479 states and 12420 transitions. [2024-11-07 02:57:40,639 INFO L78 Accepts]: Start accepts. Automaton has 8479 states and 12420 transitions. Word has length 273 [2024-11-07 02:57:40,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:40,639 INFO L471 AbstractCegarLoop]: Abstraction has 8479 states and 12420 transitions. [2024-11-07 02:57:40,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:40,639 INFO L276 IsEmpty]: Start isEmpty. Operand 8479 states and 12420 transitions. [2024-11-07 02:57:40,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-07 02:57:40,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:40,646 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:40,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-07 02:57:40,646 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:40,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:40,647 INFO L85 PathProgramCache]: Analyzing trace with hash 620357369, now seen corresponding path program 1 times [2024-11-07 02:57:40,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:40,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167833054] [2024-11-07 02:57:40,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:40,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:41,161 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:41,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:41,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167833054] [2024-11-07 02:57:41,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167833054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:41,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:41,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:41,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074215798] [2024-11-07 02:57:41,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:41,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:41,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:41,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:41,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:41,163 INFO L87 Difference]: Start difference. First operand 8479 states and 12420 transitions. Second operand has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:41,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:41,197 INFO L93 Difference]: Finished difference Result 11390 states and 16658 transitions. [2024-11-07 02:57:41,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:41,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2024-11-07 02:57:41,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:41,205 INFO L225 Difference]: With dead ends: 11390 [2024-11-07 02:57:41,205 INFO L226 Difference]: Without dead ends: 8470 [2024-11-07 02:57:41,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:41,209 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 168 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:41,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 2833 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:41,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2024-11-07 02:57:41,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 8470. [2024-11-07 02:57:41,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8470 states, 8469 states have (on average 1.4643995749202976) internal successors, (12402), 8469 states have internal predecessors, (12402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:41,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8470 states to 8470 states and 12402 transitions. [2024-11-07 02:57:41,273 INFO L78 Accepts]: Start accepts. Automaton has 8470 states and 12402 transitions. Word has length 273 [2024-11-07 02:57:41,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:41,273 INFO L471 AbstractCegarLoop]: Abstraction has 8470 states and 12402 transitions. [2024-11-07 02:57:41,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:41,273 INFO L276 IsEmpty]: Start isEmpty. Operand 8470 states and 12402 transitions. [2024-11-07 02:57:41,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-07 02:57:41,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:41,279 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:41,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-07 02:57:41,280 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:41,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:41,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1069019074, now seen corresponding path program 1 times [2024-11-07 02:57:41,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:41,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667284175] [2024-11-07 02:57:41,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:41,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:42,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:42,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667284175] [2024-11-07 02:57:42,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667284175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:42,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:42,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 02:57:42,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968647785] [2024-11-07 02:57:42,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:42,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 02:57:42,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:42,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 02:57:42,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-07 02:57:42,866 INFO L87 Difference]: Start difference. First operand 8470 states and 12402 transitions. Second operand has 13 states, 13 states have (on average 21.0) internal successors, (273), 13 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:43,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:43,005 INFO L93 Difference]: Finished difference Result 19182 states and 28118 transitions. [2024-11-07 02:57:43,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 02:57:43,006 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 21.0) internal successors, (273), 13 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2024-11-07 02:57:43,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:43,020 INFO L225 Difference]: With dead ends: 19182 [2024-11-07 02:57:43,020 INFO L226 Difference]: Without dead ends: 13642 [2024-11-07 02:57:43,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-07 02:57:43,028 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 235 mSDsluCounter, 5918 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 6613 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:43,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 6613 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:43,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13642 states. [2024-11-07 02:57:43,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13642 to 11630. [2024-11-07 02:57:43,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11630 states, 11629 states have (on average 1.4613466334164589) internal successors, (16994), 11629 states have internal predecessors, (16994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:43,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11630 states to 11630 states and 16994 transitions. [2024-11-07 02:57:43,130 INFO L78 Accepts]: Start accepts. Automaton has 11630 states and 16994 transitions. Word has length 273 [2024-11-07 02:57:43,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:43,130 INFO L471 AbstractCegarLoop]: Abstraction has 11630 states and 16994 transitions. [2024-11-07 02:57:43,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 21.0) internal successors, (273), 13 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:43,130 INFO L276 IsEmpty]: Start isEmpty. Operand 11630 states and 16994 transitions. [2024-11-07 02:57:43,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-07 02:57:43,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:43,138 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:43,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-07 02:57:43,138 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:43,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:43,138 INFO L85 PathProgramCache]: Analyzing trace with hash 445934844, now seen corresponding path program 1 times [2024-11-07 02:57:43,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:43,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27203903] [2024-11-07 02:57:43,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:43,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:43,435 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:43,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:43,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27203903] [2024-11-07 02:57:43,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27203903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:43,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:43,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:57:43,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699740858] [2024-11-07 02:57:43,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:43,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:57:43,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:43,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:57:43,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:57:43,436 INFO L87 Difference]: Start difference. First operand 11630 states and 16994 transitions. Second operand has 4 states, 4 states have (on average 68.25) internal successors, (273), 4 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:43,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:43,475 INFO L93 Difference]: Finished difference Result 20250 states and 29574 transitions. [2024-11-07 02:57:43,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:57:43,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.25) internal successors, (273), 4 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2024-11-07 02:57:43,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:43,486 INFO L225 Difference]: With dead ends: 20250 [2024-11-07 02:57:43,487 INFO L226 Difference]: Without dead ends: 11790 [2024-11-07 02:57:43,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:57:43,494 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 0 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:43,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2127 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:43,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11790 states. [2024-11-07 02:57:43,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11790 to 11790. [2024-11-07 02:57:43,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11790 states, 11789 states have (on average 1.4550852489608959) internal successors, (17154), 11789 states have internal predecessors, (17154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:43,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11790 states to 11790 states and 17154 transitions. [2024-11-07 02:57:43,590 INFO L78 Accepts]: Start accepts. Automaton has 11790 states and 17154 transitions. Word has length 273 [2024-11-07 02:57:43,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:43,590 INFO L471 AbstractCegarLoop]: Abstraction has 11790 states and 17154 transitions. [2024-11-07 02:57:43,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.25) internal successors, (273), 4 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:43,590 INFO L276 IsEmpty]: Start isEmpty. Operand 11790 states and 17154 transitions. [2024-11-07 02:57:43,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-07 02:57:43,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:43,598 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:43,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-07 02:57:43,598 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:43,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:43,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1641713314, now seen corresponding path program 1 times [2024-11-07 02:57:43,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:43,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032581763] [2024-11-07 02:57:43,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:43,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:43,916 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:43,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:43,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032581763] [2024-11-07 02:57:43,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032581763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:43,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:43,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:43,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843573776] [2024-11-07 02:57:43,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:43,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:43,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:43,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:43,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:43,917 INFO L87 Difference]: Start difference. First operand 11790 states and 17154 transitions. Second operand has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:43,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:43,959 INFO L93 Difference]: Finished difference Result 21370 states and 31142 transitions. [2024-11-07 02:57:43,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:57:43,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2024-11-07 02:57:43,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:43,972 INFO L225 Difference]: With dead ends: 21370 [2024-11-07 02:57:43,973 INFO L226 Difference]: Without dead ends: 11838 [2024-11-07 02:57:43,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:43,981 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 0 mSDsluCounter, 1411 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2123 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:43,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2123 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:43,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11838 states. [2024-11-07 02:57:44,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11838 to 11838. [2024-11-07 02:57:44,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11838 states, 11837 states have (on average 1.4532398411759737) internal successors, (17202), 11837 states have internal predecessors, (17202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:44,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11838 states to 11838 states and 17202 transitions. [2024-11-07 02:57:44,079 INFO L78 Accepts]: Start accepts. Automaton has 11838 states and 17202 transitions. Word has length 273 [2024-11-07 02:57:44,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:44,079 INFO L471 AbstractCegarLoop]: Abstraction has 11838 states and 17202 transitions. [2024-11-07 02:57:44,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:44,079 INFO L276 IsEmpty]: Start isEmpty. Operand 11838 states and 17202 transitions. [2024-11-07 02:57:44,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-07 02:57:44,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:44,087 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:44,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-07 02:57:44,088 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:44,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:44,088 INFO L85 PathProgramCache]: Analyzing trace with hash -2078247265, now seen corresponding path program 1 times [2024-11-07 02:57:44,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:44,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884306025] [2024-11-07 02:57:44,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:44,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:44,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:44,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884306025] [2024-11-07 02:57:44,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884306025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:44,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:44,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:44,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8537782] [2024-11-07 02:57:44,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:44,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:44,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:44,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:44,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:44,399 INFO L87 Difference]: Start difference. First operand 11838 states and 17202 transitions. Second operand has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:44,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:44,448 INFO L93 Difference]: Finished difference Result 22618 states and 32934 transitions. [2024-11-07 02:57:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:44,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2024-11-07 02:57:44,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:44,467 INFO L225 Difference]: With dead ends: 22618 [2024-11-07 02:57:44,467 INFO L226 Difference]: Without dead ends: 12894 [2024-11-07 02:57:44,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:44,478 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 117 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:44,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 2832 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:44,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12894 states. [2024-11-07 02:57:44,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12894 to 12894. [2024-11-07 02:57:44,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12894 states, 12893 states have (on average 1.453036531451175) internal successors, (18734), 12893 states have internal predecessors, (18734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:44,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12894 states to 12894 states and 18734 transitions. [2024-11-07 02:57:44,651 INFO L78 Accepts]: Start accepts. Automaton has 12894 states and 18734 transitions. Word has length 273 [2024-11-07 02:57:44,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:44,651 INFO L471 AbstractCegarLoop]: Abstraction has 12894 states and 18734 transitions. [2024-11-07 02:57:44,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:44,651 INFO L276 IsEmpty]: Start isEmpty. Operand 12894 states and 18734 transitions. [2024-11-07 02:57:44,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-07 02:57:44,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:44,660 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:44,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-07 02:57:44,660 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:44,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:44,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1038109979, now seen corresponding path program 1 times [2024-11-07 02:57:44,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:44,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070846752] [2024-11-07 02:57:44,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:44,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:45,717 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:45,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:45,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070846752] [2024-11-07 02:57:45,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070846752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:45,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:45,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 02:57:45,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446569652] [2024-11-07 02:57:45,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:45,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 02:57:45,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:45,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 02:57:45,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:45,719 INFO L87 Difference]: Start difference. First operand 12894 states and 18734 transitions. Second operand has 9 states, 9 states have (on average 30.444444444444443) internal successors, (274), 9 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:45,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:45,859 INFO L93 Difference]: Finished difference Result 20417 states and 29672 transitions. [2024-11-07 02:57:45,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 02:57:45,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 30.444444444444443) internal successors, (274), 9 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2024-11-07 02:57:45,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:45,876 INFO L225 Difference]: With dead ends: 20417 [2024-11-07 02:57:45,876 INFO L226 Difference]: Without dead ends: 16354 [2024-11-07 02:57:45,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-07 02:57:45,883 INFO L432 NwaCegarLoop]: 1241 mSDtfsCounter, 659 mSDsluCounter, 8097 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 9338 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:45,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 9338 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:45,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16354 states. [2024-11-07 02:57:45,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16354 to 12892. [2024-11-07 02:57:45,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12892 states, 12891 states have (on average 1.4528740982080521) internal successors, (18729), 12891 states have internal predecessors, (18729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:46,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12892 states to 12892 states and 18729 transitions. [2024-11-07 02:57:46,001 INFO L78 Accepts]: Start accepts. Automaton has 12892 states and 18729 transitions. Word has length 274 [2024-11-07 02:57:46,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:46,001 INFO L471 AbstractCegarLoop]: Abstraction has 12892 states and 18729 transitions. [2024-11-07 02:57:46,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 30.444444444444443) internal successors, (274), 9 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:46,001 INFO L276 IsEmpty]: Start isEmpty. Operand 12892 states and 18729 transitions. [2024-11-07 02:57:46,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-07 02:57:46,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:46,009 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:46,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-07 02:57:46,010 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:46,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:46,010 INFO L85 PathProgramCache]: Analyzing trace with hash -341154691, now seen corresponding path program 1 times [2024-11-07 02:57:46,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:46,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725956653] [2024-11-07 02:57:46,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:46,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:47,318 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:47,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:47,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725956653] [2024-11-07 02:57:47,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725956653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:47,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:47,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 02:57:47,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657302932] [2024-11-07 02:57:47,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:47,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 02:57:47,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:47,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 02:57:47,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:57:47,319 INFO L87 Difference]: Start difference. First operand 12892 states and 18729 transitions. Second operand has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:47,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:47,400 INFO L93 Difference]: Finished difference Result 16991 states and 24665 transitions. [2024-11-07 02:57:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 02:57:47,401 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2024-11-07 02:57:47,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:47,415 INFO L225 Difference]: With dead ends: 16991 [2024-11-07 02:57:47,415 INFO L226 Difference]: Without dead ends: 12930 [2024-11-07 02:57:47,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:47,422 INFO L432 NwaCegarLoop]: 733 mSDtfsCounter, 94 mSDsluCounter, 4352 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:47,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 5085 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:47,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12930 states. [2024-11-07 02:57:47,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12930 to 12886. [2024-11-07 02:57:47,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12886 states, 12885 states have (on average 1.4528521536670547) internal successors, (18720), 12885 states have internal predecessors, (18720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:47,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12886 states to 12886 states and 18720 transitions. [2024-11-07 02:57:47,544 INFO L78 Accepts]: Start accepts. Automaton has 12886 states and 18720 transitions. Word has length 274 [2024-11-07 02:57:47,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:47,544 INFO L471 AbstractCegarLoop]: Abstraction has 12886 states and 18720 transitions. [2024-11-07 02:57:47,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:47,545 INFO L276 IsEmpty]: Start isEmpty. Operand 12886 states and 18720 transitions. [2024-11-07 02:57:47,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-07 02:57:47,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:47,553 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:47,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-07 02:57:47,553 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:47,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:47,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1325688747, now seen corresponding path program 1 times [2024-11-07 02:57:47,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:47,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042025969] [2024-11-07 02:57:47,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:47,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:48,116 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:48,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:48,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042025969] [2024-11-07 02:57:48,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042025969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:48,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:48,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:57:48,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125991991] [2024-11-07 02:57:48,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:48,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:57:48,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:48,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:57:48,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:48,118 INFO L87 Difference]: Start difference. First operand 12886 states and 18720 transitions. Second operand has 7 states, 7 states have (on average 39.142857142857146) internal successors, (274), 7 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:48,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:48,172 INFO L93 Difference]: Finished difference Result 17380 states and 25214 transitions. [2024-11-07 02:57:48,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:57:48,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.142857142857146) internal successors, (274), 7 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2024-11-07 02:57:48,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:48,187 INFO L225 Difference]: With dead ends: 17380 [2024-11-07 02:57:48,187 INFO L226 Difference]: Without dead ends: 13325 [2024-11-07 02:57:48,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:48,194 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 45 mSDsluCounter, 3525 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 4234 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:48,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 4234 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:48,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13325 states. [2024-11-07 02:57:48,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13325 to 13325. [2024-11-07 02:57:48,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13325 states, 13324 states have (on average 1.450615430801561) internal successors, (19328), 13324 states have internal predecessors, (19328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:48,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13325 states to 13325 states and 19328 transitions. [2024-11-07 02:57:48,319 INFO L78 Accepts]: Start accepts. Automaton has 13325 states and 19328 transitions. Word has length 274 [2024-11-07 02:57:48,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:48,319 INFO L471 AbstractCegarLoop]: Abstraction has 13325 states and 19328 transitions. [2024-11-07 02:57:48,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.142857142857146) internal successors, (274), 7 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:48,319 INFO L276 IsEmpty]: Start isEmpty. Operand 13325 states and 19328 transitions. [2024-11-07 02:57:48,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-07 02:57:48,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:48,328 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:48,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-07 02:57:48,328 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:48,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:48,328 INFO L85 PathProgramCache]: Analyzing trace with hash 163770851, now seen corresponding path program 1 times [2024-11-07 02:57:48,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:48,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814986730] [2024-11-07 02:57:48,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:48,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:48,805 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:48,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:48,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814986730] [2024-11-07 02:57:48,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814986730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:48,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:48,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:48,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076136524] [2024-11-07 02:57:48,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:48,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:48,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:48,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:48,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:48,806 INFO L87 Difference]: Start difference. First operand 13325 states and 19328 transitions. Second operand has 6 states, 6 states have (on average 45.666666666666664) internal successors, (274), 6 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:48,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:48,854 INFO L93 Difference]: Finished difference Result 17646 states and 25578 transitions. [2024-11-07 02:57:48,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:57:48,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 45.666666666666664) internal successors, (274), 6 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2024-11-07 02:57:48,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:48,869 INFO L225 Difference]: With dead ends: 17646 [2024-11-07 02:57:48,869 INFO L226 Difference]: Without dead ends: 13267 [2024-11-07 02:57:48,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:48,877 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 48 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3532 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:48,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3532 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:48,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13267 states. [2024-11-07 02:57:48,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13267 to 13267. [2024-11-07 02:57:48,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 13266 states have (on average 1.4504748982360922) internal successors, (19242), 13266 states have internal predecessors, (19242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:48,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 19242 transitions. [2024-11-07 02:57:48,989 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 19242 transitions. Word has length 274 [2024-11-07 02:57:48,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:48,990 INFO L471 AbstractCegarLoop]: Abstraction has 13267 states and 19242 transitions. [2024-11-07 02:57:48,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.666666666666664) internal successors, (274), 6 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:48,990 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 19242 transitions. [2024-11-07 02:57:48,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-07 02:57:48,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:48,999 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:48,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-07 02:57:48,999 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:48,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:48,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1937077938, now seen corresponding path program 1 times [2024-11-07 02:57:48,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:48,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261167950] [2024-11-07 02:57:48,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:48,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:49,475 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:49,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:49,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261167950] [2024-11-07 02:57:49,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261167950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:49,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:49,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:49,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798705028] [2024-11-07 02:57:49,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:49,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:49,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:49,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:49,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:49,476 INFO L87 Difference]: Start difference. First operand 13267 states and 19242 transitions. Second operand has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:49,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:49,526 INFO L93 Difference]: Finished difference Result 17764 states and 25722 transitions. [2024-11-07 02:57:49,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:49,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2024-11-07 02:57:49,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:49,542 INFO L225 Difference]: With dead ends: 17764 [2024-11-07 02:57:49,543 INFO L226 Difference]: Without dead ends: 13243 [2024-11-07 02:57:49,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:49,550 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 86 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:49,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 2833 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:49,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13243 states. [2024-11-07 02:57:49,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13243 to 13243. [2024-11-07 02:57:49,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13243 states, 13242 states have (on average 1.4494789306751246) internal successors, (19194), 13242 states have internal predecessors, (19194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:49,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 19194 transitions. [2024-11-07 02:57:49,669 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 19194 transitions. Word has length 274 [2024-11-07 02:57:49,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:49,669 INFO L471 AbstractCegarLoop]: Abstraction has 13243 states and 19194 transitions. [2024-11-07 02:57:49,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:49,669 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 19194 transitions. [2024-11-07 02:57:49,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-07 02:57:49,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:49,678 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:49,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-07 02:57:49,678 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:49,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:49,679 INFO L85 PathProgramCache]: Analyzing trace with hash -55169205, now seen corresponding path program 1 times [2024-11-07 02:57:49,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:49,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884499935] [2024-11-07 02:57:49,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:49,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:50,259 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:50,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:50,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884499935] [2024-11-07 02:57:50,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884499935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:50,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:50,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:50,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155071908] [2024-11-07 02:57:50,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:50,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:50,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:50,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:50,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:50,260 INFO L87 Difference]: Start difference. First operand 13243 states and 19194 transitions. Second operand has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:50,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:50,399 INFO L93 Difference]: Finished difference Result 17571 states and 25438 transitions. [2024-11-07 02:57:50,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:50,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2024-11-07 02:57:50,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:50,412 INFO L225 Difference]: With dead ends: 17571 [2024-11-07 02:57:50,412 INFO L226 Difference]: Without dead ends: 13165 [2024-11-07 02:57:50,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:50,419 INFO L432 NwaCegarLoop]: 623 mSDtfsCounter, 500 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:50,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 1862 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:50,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13165 states. [2024-11-07 02:57:50,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13165 to 13165. [2024-11-07 02:57:50,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13165 states, 13164 states have (on average 1.4495594044363416) internal successors, (19082), 13164 states have internal predecessors, (19082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:50,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13165 states to 13165 states and 19082 transitions. [2024-11-07 02:57:50,530 INFO L78 Accepts]: Start accepts. Automaton has 13165 states and 19082 transitions. Word has length 274 [2024-11-07 02:57:50,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:50,530 INFO L471 AbstractCegarLoop]: Abstraction has 13165 states and 19082 transitions. [2024-11-07 02:57:50,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:50,530 INFO L276 IsEmpty]: Start isEmpty. Operand 13165 states and 19082 transitions. [2024-11-07 02:57:50,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-07 02:57:50,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:50,538 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:50,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-07 02:57:50,538 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:50,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:50,539 INFO L85 PathProgramCache]: Analyzing trace with hash 930757078, now seen corresponding path program 1 times [2024-11-07 02:57:50,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:50,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880874104] [2024-11-07 02:57:50,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:50,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:51,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:51,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880874104] [2024-11-07 02:57:51,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880874104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:51,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:51,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 02:57:51,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786330655] [2024-11-07 02:57:51,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:51,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 02:57:51,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:51,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 02:57:51,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 02:57:51,719 INFO L87 Difference]: Start difference. First operand 13165 states and 19082 transitions. Second operand has 10 states, 10 states have (on average 27.4) internal successors, (274), 10 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:51,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:51,811 INFO L93 Difference]: Finished difference Result 21160 states and 30672 transitions. [2024-11-07 02:57:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 02:57:51,812 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 27.4) internal successors, (274), 10 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2024-11-07 02:57:51,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:51,829 INFO L225 Difference]: With dead ends: 21160 [2024-11-07 02:57:51,829 INFO L226 Difference]: Without dead ends: 15497 [2024-11-07 02:57:51,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 02:57:51,838 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 91 mSDsluCounter, 5595 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 6300 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:51,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 6300 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:51,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15497 states. [2024-11-07 02:57:51,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15497 to 15233. [2024-11-07 02:57:51,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15233 states, 15232 states have (on average 1.450236344537815) internal successors, (22090), 15232 states have internal predecessors, (22090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:51,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15233 states to 15233 states and 22090 transitions. [2024-11-07 02:57:51,980 INFO L78 Accepts]: Start accepts. Automaton has 15233 states and 22090 transitions. Word has length 274 [2024-11-07 02:57:51,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:51,980 INFO L471 AbstractCegarLoop]: Abstraction has 15233 states and 22090 transitions. [2024-11-07 02:57:51,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.4) internal successors, (274), 10 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:51,980 INFO L276 IsEmpty]: Start isEmpty. Operand 15233 states and 22090 transitions. [2024-11-07 02:57:51,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-07 02:57:51,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:51,991 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:51,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-07 02:57:51,991 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:51,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:51,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1672147221, now seen corresponding path program 1 times [2024-11-07 02:57:51,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:51,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313438881] [2024-11-07 02:57:51,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:51,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:52,318 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:52,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:52,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313438881] [2024-11-07 02:57:52,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313438881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:52,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:52,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:52,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895987843] [2024-11-07 02:57:52,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:52,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:52,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:52,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:52,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:52,319 INFO L87 Difference]: Start difference. First operand 15233 states and 22090 transitions. Second operand has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:52,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:52,384 INFO L93 Difference]: Finished difference Result 29056 states and 42128 transitions. [2024-11-07 02:57:52,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:52,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2024-11-07 02:57:52,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:52,410 INFO L225 Difference]: With dead ends: 29056 [2024-11-07 02:57:52,410 INFO L226 Difference]: Without dead ends: 22845 [2024-11-07 02:57:52,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:52,422 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 82 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:52,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 2833 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:52,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22845 states. [2024-11-07 02:57:52,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22845 to 22845. [2024-11-07 02:57:52,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22845 states, 22844 states have (on average 1.4488706005953422) internal successors, (33098), 22844 states have internal predecessors, (33098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:52,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22845 states to 22845 states and 33098 transitions. [2024-11-07 02:57:52,631 INFO L78 Accepts]: Start accepts. Automaton has 22845 states and 33098 transitions. Word has length 274 [2024-11-07 02:57:52,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:52,632 INFO L471 AbstractCegarLoop]: Abstraction has 22845 states and 33098 transitions. [2024-11-07 02:57:52,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:52,632 INFO L276 IsEmpty]: Start isEmpty. Operand 22845 states and 33098 transitions. [2024-11-07 02:57:52,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-07 02:57:52,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:52,650 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:52,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-07 02:57:52,650 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:52,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:52,651 INFO L85 PathProgramCache]: Analyzing trace with hash -103043929, now seen corresponding path program 1 times [2024-11-07 02:57:52,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:52,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218450815] [2024-11-07 02:57:52,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:52,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:52,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:52,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218450815] [2024-11-07 02:57:52,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218450815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:52,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:52,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:52,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886477148] [2024-11-07 02:57:52,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:52,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:52,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:52,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:52,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:52,972 INFO L87 Difference]: Start difference. First operand 22845 states and 33098 transitions. Second operand has 6 states, 6 states have (on average 45.666666666666664) internal successors, (274), 6 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:53,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:53,062 INFO L93 Difference]: Finished difference Result 44596 states and 64748 transitions. [2024-11-07 02:57:53,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:53,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 45.666666666666664) internal successors, (274), 6 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2024-11-07 02:57:53,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:53,096 INFO L225 Difference]: With dead ends: 44596 [2024-11-07 02:57:53,097 INFO L226 Difference]: Without dead ends: 25909 [2024-11-07 02:57:53,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:53,114 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 55 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:53,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 2832 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:53,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25909 states. [2024-11-07 02:57:53,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25909 to 25909. [2024-11-07 02:57:53,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25909 states, 25908 states have (on average 1.4478153466110855) internal successors, (37510), 25908 states have internal predecessors, (37510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:53,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25909 states to 25909 states and 37510 transitions. [2024-11-07 02:57:53,353 INFO L78 Accepts]: Start accepts. Automaton has 25909 states and 37510 transitions. Word has length 274 [2024-11-07 02:57:53,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:53,353 INFO L471 AbstractCegarLoop]: Abstraction has 25909 states and 37510 transitions. [2024-11-07 02:57:53,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.666666666666664) internal successors, (274), 6 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:53,354 INFO L276 IsEmpty]: Start isEmpty. Operand 25909 states and 37510 transitions. [2024-11-07 02:57:53,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-07 02:57:53,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:53,374 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:53,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-07 02:57:53,374 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:53,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:53,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1912348109, now seen corresponding path program 1 times [2024-11-07 02:57:53,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:53,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344446346] [2024-11-07 02:57:53,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:53,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:53,715 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:53,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:53,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344446346] [2024-11-07 02:57:53,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344446346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:53,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:53,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:53,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701172537] [2024-11-07 02:57:53,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:53,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:53,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:53,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:53,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:53,716 INFO L87 Difference]: Start difference. First operand 25909 states and 37510 transitions. Second operand has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:53,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:53,842 INFO L93 Difference]: Finished difference Result 40212 states and 58184 transitions. [2024-11-07 02:57:53,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:57:53,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2024-11-07 02:57:53,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:53,870 INFO L225 Difference]: With dead ends: 40212 [2024-11-07 02:57:53,870 INFO L226 Difference]: Without dead ends: 26069 [2024-11-07 02:57:53,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:53,884 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 0 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:53,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2124 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:53,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26069 states. [2024-11-07 02:57:54,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26069 to 26069. [2024-11-07 02:57:54,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26069 states, 26068 states have (on average 1.4450667485039128) internal successors, (37670), 26068 states have internal predecessors, (37670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:54,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26069 states to 26069 states and 37670 transitions. [2024-11-07 02:57:54,108 INFO L78 Accepts]: Start accepts. Automaton has 26069 states and 37670 transitions. Word has length 274 [2024-11-07 02:57:54,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:54,108 INFO L471 AbstractCegarLoop]: Abstraction has 26069 states and 37670 transitions. [2024-11-07 02:57:54,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:54,108 INFO L276 IsEmpty]: Start isEmpty. Operand 26069 states and 37670 transitions. [2024-11-07 02:57:54,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-07 02:57:54,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:54,126 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:54,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-07 02:57:54,126 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:54,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:54,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1170087253, now seen corresponding path program 1 times [2024-11-07 02:57:54,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:54,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828821984] [2024-11-07 02:57:54,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:54,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:54,428 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:54,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:54,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828821984] [2024-11-07 02:57:54,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828821984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:54,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:54,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:54,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366710144] [2024-11-07 02:57:54,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:54,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:54,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:54,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:54,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:54,429 INFO L87 Difference]: Start difference. First operand 26069 states and 37670 transitions. Second operand has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:54,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:54,521 INFO L93 Difference]: Finished difference Result 50332 states and 72736 transitions. [2024-11-07 02:57:54,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:57:54,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2024-11-07 02:57:54,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:54,549 INFO L225 Difference]: With dead ends: 50332 [2024-11-07 02:57:54,549 INFO L226 Difference]: Without dead ends: 26165 [2024-11-07 02:57:54,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:54,568 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 0 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:54,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2832 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:54,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26165 states. [2024-11-07 02:57:54,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26165 to 26165. [2024-11-07 02:57:54,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26165 states, 26164 states have (on average 1.4434337257300107) internal successors, (37766), 26164 states have internal predecessors, (37766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:54,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26165 states to 26165 states and 37766 transitions. [2024-11-07 02:57:54,797 INFO L78 Accepts]: Start accepts. Automaton has 26165 states and 37766 transitions. Word has length 274 [2024-11-07 02:57:54,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:54,797 INFO L471 AbstractCegarLoop]: Abstraction has 26165 states and 37766 transitions. [2024-11-07 02:57:54,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:54,797 INFO L276 IsEmpty]: Start isEmpty. Operand 26165 states and 37766 transitions. [2024-11-07 02:57:54,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-07 02:57:54,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:54,814 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:54,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-07 02:57:54,814 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:54,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:54,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1507433321, now seen corresponding path program 1 times [2024-11-07 02:57:54,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:54,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767664175] [2024-11-07 02:57:54,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:54,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:55,534 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:55,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:55,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767664175] [2024-11-07 02:57:55,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767664175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:55,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:55,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 02:57:55,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87710085] [2024-11-07 02:57:55,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:55,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 02:57:55,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:55,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 02:57:55,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 02:57:55,535 INFO L87 Difference]: Start difference. First operand 26165 states and 37766 transitions. Second operand has 10 states, 10 states have (on average 27.4) internal successors, (274), 10 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:55,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:55,678 INFO L93 Difference]: Finished difference Result 52300 states and 75624 transitions. [2024-11-07 02:57:55,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 02:57:55,678 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 27.4) internal successors, (274), 10 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2024-11-07 02:57:55,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:55,715 INFO L225 Difference]: With dead ends: 52300 [2024-11-07 02:57:55,715 INFO L226 Difference]: Without dead ends: 33765 [2024-11-07 02:57:55,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 02:57:55,735 INFO L432 NwaCegarLoop]: 802 mSDtfsCounter, 141 mSDsluCounter, 4159 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 4961 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:55,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 4961 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:55,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33765 states. [2024-11-07 02:57:55,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33765 to 30021. [2024-11-07 02:57:55,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30021 states, 30020 states have (on average 1.4397734843437708) internal successors, (43222), 30020 states have internal predecessors, (43222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:56,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30021 states to 30021 states and 43222 transitions. [2024-11-07 02:57:56,009 INFO L78 Accepts]: Start accepts. Automaton has 30021 states and 43222 transitions. Word has length 274 [2024-11-07 02:57:56,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:56,009 INFO L471 AbstractCegarLoop]: Abstraction has 30021 states and 43222 transitions. [2024-11-07 02:57:56,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.4) internal successors, (274), 10 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:56,009 INFO L276 IsEmpty]: Start isEmpty. Operand 30021 states and 43222 transitions. [2024-11-07 02:57:56,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-07 02:57:56,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:56,027 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:56,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-07 02:57:56,028 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:56,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:56,028 INFO L85 PathProgramCache]: Analyzing trace with hash 497366683, now seen corresponding path program 1 times [2024-11-07 02:57:56,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:56,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955403521] [2024-11-07 02:57:56,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:56,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:56,323 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:56,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:56,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955403521] [2024-11-07 02:57:56,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955403521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:56,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:56,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:56,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687118374] [2024-11-07 02:57:56,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:56,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:56,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:56,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:56,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:56,324 INFO L87 Difference]: Start difference. First operand 30021 states and 43222 transitions. Second operand has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:56,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:56,429 INFO L93 Difference]: Finished difference Result 58252 states and 83880 transitions. [2024-11-07 02:57:56,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:57:56,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2024-11-07 02:57:56,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:56,464 INFO L225 Difference]: With dead ends: 58252 [2024-11-07 02:57:56,464 INFO L226 Difference]: Without dead ends: 30165 [2024-11-07 02:57:56,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:56,488 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 0 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:56,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2126 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:56,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30165 states. [2024-11-07 02:57:56,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30165 to 30165. [2024-11-07 02:57:56,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30165 states, 30164 states have (on average 1.437674048534677) internal successors, (43366), 30164 states have internal predecessors, (43366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:56,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30165 states to 30165 states and 43366 transitions. [2024-11-07 02:57:56,760 INFO L78 Accepts]: Start accepts. Automaton has 30165 states and 43366 transitions. Word has length 275 [2024-11-07 02:57:56,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:56,760 INFO L471 AbstractCegarLoop]: Abstraction has 30165 states and 43366 transitions. [2024-11-07 02:57:56,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:56,761 INFO L276 IsEmpty]: Start isEmpty. Operand 30165 states and 43366 transitions. [2024-11-07 02:57:56,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-07 02:57:56,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:56,781 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:56,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-07 02:57:56,782 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:56,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:56,783 INFO L85 PathProgramCache]: Analyzing trace with hash 313083758, now seen corresponding path program 1 times [2024-11-07 02:57:56,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:56,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781359878] [2024-11-07 02:57:56,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:56,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:57,064 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:57,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:57,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781359878] [2024-11-07 02:57:57,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781359878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:57,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:57,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:57,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580025153] [2024-11-07 02:57:57,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:57,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:57,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:57,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:57,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:57,065 INFO L87 Difference]: Start difference. First operand 30165 states and 43366 transitions. Second operand has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:57,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:57,158 INFO L93 Difference]: Finished difference Result 50308 states and 72368 transitions. [2024-11-07 02:57:57,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:57,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2024-11-07 02:57:57,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:57,197 INFO L225 Difference]: With dead ends: 50308 [2024-11-07 02:57:57,197 INFO L226 Difference]: Without dead ends: 33285 [2024-11-07 02:57:57,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:57,215 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 16 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:57,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2832 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:57,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33285 states. [2024-11-07 02:57:57,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33285 to 33285. [2024-11-07 02:57:57,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33285 states, 33284 states have (on average 1.4327003965869487) internal successors, (47686), 33284 states have internal predecessors, (47686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:57,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33285 states to 33285 states and 47686 transitions. [2024-11-07 02:57:57,663 INFO L78 Accepts]: Start accepts. Automaton has 33285 states and 47686 transitions. Word has length 275 [2024-11-07 02:57:57,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:57,663 INFO L471 AbstractCegarLoop]: Abstraction has 33285 states and 47686 transitions. [2024-11-07 02:57:57,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:57,663 INFO L276 IsEmpty]: Start isEmpty. Operand 33285 states and 47686 transitions. [2024-11-07 02:57:57,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-07 02:57:57,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:57,697 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:57,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-07 02:57:57,698 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:57,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:57,698 INFO L85 PathProgramCache]: Analyzing trace with hash -113375792, now seen corresponding path program 1 times [2024-11-07 02:57:57,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:57,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630013859] [2024-11-07 02:57:57,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:57,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:58,205 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:58,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:58,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630013859] [2024-11-07 02:57:58,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630013859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:58,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:58,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:58,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572601888] [2024-11-07 02:57:58,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:58,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:58,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:58,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:58,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:58,206 INFO L87 Difference]: Start difference. First operand 33285 states and 47686 transitions. Second operand has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:58,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:58,309 INFO L93 Difference]: Finished difference Result 53124 states and 76432 transitions. [2024-11-07 02:57:58,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:58,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2024-11-07 02:57:58,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:58,355 INFO L225 Difference]: With dead ends: 53124 [2024-11-07 02:57:58,355 INFO L226 Difference]: Without dead ends: 42429 [2024-11-07 02:57:58,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:58,376 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 46 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:58,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 2832 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:58,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42429 states. [2024-11-07 02:57:58,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42429 to 39381. [2024-11-07 02:57:58,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39381 states, 39380 states have (on average 1.4360081259522601) internal successors, (56550), 39380 states have internal predecessors, (56550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:58,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39381 states to 39381 states and 56550 transitions. [2024-11-07 02:57:58,765 INFO L78 Accepts]: Start accepts. Automaton has 39381 states and 56550 transitions. Word has length 275 [2024-11-07 02:57:58,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:58,765 INFO L471 AbstractCegarLoop]: Abstraction has 39381 states and 56550 transitions. [2024-11-07 02:57:58,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:58,765 INFO L276 IsEmpty]: Start isEmpty. Operand 39381 states and 56550 transitions. [2024-11-07 02:57:58,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-07 02:57:58,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:58,798 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:57:58,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-07 02:57:58,798 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:58,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:58,798 INFO L85 PathProgramCache]: Analyzing trace with hash -665632271, now seen corresponding path program 1 times [2024-11-07 02:57:58,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:58,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261579788] [2024-11-07 02:57:58,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:58,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:59,953 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:59,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:59,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261579788] [2024-11-07 02:57:59,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261579788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:59,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:59,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:57:59,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320452135] [2024-11-07 02:57:59,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:59,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:57:59,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:59,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:57:59,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:59,954 INFO L87 Difference]: Start difference. First operand 39381 states and 56550 transitions. Second operand has 7 states, 7 states have (on average 39.285714285714285) internal successors, (275), 7 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:00,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:00,247 INFO L93 Difference]: Finished difference Result 49990 states and 71791 transitions. [2024-11-07 02:58:00,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:58:00,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.285714285714285) internal successors, (275), 7 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2024-11-07 02:58:00,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:00,289 INFO L225 Difference]: With dead ends: 49990 [2024-11-07 02:58:00,289 INFO L226 Difference]: Without dead ends: 39397 [2024-11-07 02:58:00,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:58:00,311 INFO L432 NwaCegarLoop]: 607 mSDtfsCounter, 467 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:00,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 3027 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 02:58:00,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39397 states. [2024-11-07 02:58:00,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39397 to 39393. [2024-11-07 02:58:00,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39393 states, 39392 states have (on average 1.435976848090983) internal successors, (56566), 39392 states have internal predecessors, (56566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:00,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39393 states to 39393 states and 56566 transitions. [2024-11-07 02:58:00,667 INFO L78 Accepts]: Start accepts. Automaton has 39393 states and 56566 transitions. Word has length 275 [2024-11-07 02:58:00,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:00,667 INFO L471 AbstractCegarLoop]: Abstraction has 39393 states and 56566 transitions. [2024-11-07 02:58:00,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.285714285714285) internal successors, (275), 7 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:00,668 INFO L276 IsEmpty]: Start isEmpty. Operand 39393 states and 56566 transitions. [2024-11-07 02:58:00,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-07 02:58:00,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:00,697 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:58:00,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-07 02:58:00,697 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:00,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:00,697 INFO L85 PathProgramCache]: Analyzing trace with hash 823827327, now seen corresponding path program 1 times [2024-11-07 02:58:00,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:00,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36090307] [2024-11-07 02:58:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:00,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:01,963 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:01,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:01,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36090307] [2024-11-07 02:58:01,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36090307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:58:01,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:58:01,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 02:58:01,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471314960] [2024-11-07 02:58:01,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:58:01,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 02:58:01,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:01,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 02:58:01,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 02:58:01,965 INFO L87 Difference]: Start difference. First operand 39393 states and 56566 transitions. Second operand has 10 states, 10 states have (on average 27.5) internal successors, (275), 10 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:02,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:02,480 INFO L93 Difference]: Finished difference Result 56876 states and 81638 transitions. [2024-11-07 02:58:02,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 02:58:02,480 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 27.5) internal successors, (275), 10 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2024-11-07 02:58:02,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:02,538 INFO L225 Difference]: With dead ends: 56876 [2024-11-07 02:58:02,538 INFO L226 Difference]: Without dead ends: 41021 [2024-11-07 02:58:02,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-07 02:58:02,561 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 726 mSDsluCounter, 9336 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 10586 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:02,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 10586 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 02:58:02,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41021 states. [2024-11-07 02:58:02,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41021 to 41003. [2024-11-07 02:58:02,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41003 states, 41002 states have (on average 1.436173845178284) internal successors, (58886), 41002 states have internal predecessors, (58886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:03,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41003 states to 41003 states and 58886 transitions. [2024-11-07 02:58:03,008 INFO L78 Accepts]: Start accepts. Automaton has 41003 states and 58886 transitions. Word has length 275 [2024-11-07 02:58:03,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:03,009 INFO L471 AbstractCegarLoop]: Abstraction has 41003 states and 58886 transitions. [2024-11-07 02:58:03,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.5) internal successors, (275), 10 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:03,009 INFO L276 IsEmpty]: Start isEmpty. Operand 41003 states and 58886 transitions. [2024-11-07 02:58:03,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-07 02:58:03,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:03,040 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:58:03,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-07 02:58:03,040 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:03,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:03,040 INFO L85 PathProgramCache]: Analyzing trace with hash 604887271, now seen corresponding path program 1 times [2024-11-07 02:58:03,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:03,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752840262] [2024-11-07 02:58:03,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:03,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:04,144 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:04,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:04,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752840262] [2024-11-07 02:58:04,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752840262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:58:04,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:58:04,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:58:04,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614116849] [2024-11-07 02:58:04,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:58:04,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:58:04,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:04,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:58:04,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:58:04,146 INFO L87 Difference]: Start difference. First operand 41003 states and 58886 transitions. Second operand has 7 states, 7 states have (on average 39.285714285714285) internal successors, (275), 7 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:04,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:04,433 INFO L93 Difference]: Finished difference Result 52338 states and 75168 transitions. [2024-11-07 02:58:04,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:58:04,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.285714285714285) internal successors, (275), 7 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2024-11-07 02:58:04,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:04,477 INFO L225 Difference]: With dead ends: 52338 [2024-11-07 02:58:04,477 INFO L226 Difference]: Without dead ends: 41011 [2024-11-07 02:58:04,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:58:04,498 INFO L432 NwaCegarLoop]: 607 mSDtfsCounter, 499 mSDsluCounter, 2419 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 3026 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:04,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 3026 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 02:58:04,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41011 states. [2024-11-07 02:58:04,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41011 to 41009. [2024-11-07 02:58:04,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41009 states, 41008 states have (on average 1.4360612563402262) internal successors, (58890), 41008 states have internal predecessors, (58890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:04,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41009 states to 41009 states and 58890 transitions. [2024-11-07 02:58:04,897 INFO L78 Accepts]: Start accepts. Automaton has 41009 states and 58890 transitions. Word has length 275 [2024-11-07 02:58:04,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:04,897 INFO L471 AbstractCegarLoop]: Abstraction has 41009 states and 58890 transitions. [2024-11-07 02:58:04,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.285714285714285) internal successors, (275), 7 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:04,898 INFO L276 IsEmpty]: Start isEmpty. Operand 41009 states and 58890 transitions. [2024-11-07 02:58:04,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-07 02:58:04,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:04,930 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:58:04,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-07 02:58:04,930 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:04,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:04,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1556002971, now seen corresponding path program 1 times [2024-11-07 02:58:04,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:04,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187403789] [2024-11-07 02:58:04,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:04,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:05,339 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:05,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:05,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187403789] [2024-11-07 02:58:05,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187403789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:58:05,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:58:05,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:58:05,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058110281] [2024-11-07 02:58:05,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:58:05,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:58:05,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:05,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:58:05,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:58:05,340 INFO L87 Difference]: Start difference. First operand 41009 states and 58890 transitions. Second operand has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:05,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:05,472 INFO L93 Difference]: Finished difference Result 77076 states and 110776 transitions. [2024-11-07 02:58:05,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:58:05,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2024-11-07 02:58:05,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:05,521 INFO L225 Difference]: With dead ends: 77076 [2024-11-07 02:58:05,521 INFO L226 Difference]: Without dead ends: 41489 [2024-11-07 02:58:05,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:58:05,554 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 0 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:05,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2126 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:58:05,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41489 states. [2024-11-07 02:58:05,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41489 to 41489. [2024-11-07 02:58:05,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41489 states, 41488 states have (on average 1.4310161974546858) internal successors, (59370), 41488 states have internal predecessors, (59370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:05,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41489 states to 41489 states and 59370 transitions. [2024-11-07 02:58:05,939 INFO L78 Accepts]: Start accepts. Automaton has 41489 states and 59370 transitions. Word has length 275 [2024-11-07 02:58:05,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:05,939 INFO L471 AbstractCegarLoop]: Abstraction has 41489 states and 59370 transitions. [2024-11-07 02:58:05,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:05,939 INFO L276 IsEmpty]: Start isEmpty. Operand 41489 states and 59370 transitions. [2024-11-07 02:58:05,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-07 02:58:05,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:05,972 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:58:05,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-07 02:58:05,972 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:05,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:05,972 INFO L85 PathProgramCache]: Analyzing trace with hash -81661345, now seen corresponding path program 1 times [2024-11-07 02:58:05,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:05,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244450978] [2024-11-07 02:58:05,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:05,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:06,954 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:06,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:06,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244450978] [2024-11-07 02:58:06,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244450978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:58:06,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:58:06,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 02:58:06,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681167228] [2024-11-07 02:58:06,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:58:06,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 02:58:06,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:06,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 02:58:06,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:58:06,955 INFO L87 Difference]: Start difference. First operand 41489 states and 59370 transitions. Second operand has 8 states, 8 states have (on average 34.375) internal successors, (275), 8 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:07,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:07,111 INFO L93 Difference]: Finished difference Result 64108 states and 91832 transitions. [2024-11-07 02:58:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 02:58:07,111 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.375) internal successors, (275), 8 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2024-11-07 02:58:07,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:07,156 INFO L225 Difference]: With dead ends: 64108 [2024-11-07 02:58:07,156 INFO L226 Difference]: Without dead ends: 41633 [2024-11-07 02:58:07,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:58:07,182 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 38 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2999 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:07,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2999 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:58:07,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41633 states. [2024-11-07 02:58:07,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41633 to 41561. [2024-11-07 02:58:07,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41561 states, 41560 states have (on average 1.430269489894129) internal successors, (59442), 41560 states have internal predecessors, (59442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:07,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41561 states to 41561 states and 59442 transitions. [2024-11-07 02:58:07,782 INFO L78 Accepts]: Start accepts. Automaton has 41561 states and 59442 transitions. Word has length 275 [2024-11-07 02:58:07,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:07,782 INFO L471 AbstractCegarLoop]: Abstraction has 41561 states and 59442 transitions. [2024-11-07 02:58:07,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.375) internal successors, (275), 8 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:07,782 INFO L276 IsEmpty]: Start isEmpty. Operand 41561 states and 59442 transitions. [2024-11-07 02:58:07,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-07 02:58:07,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:07,816 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:58:07,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-07 02:58:07,816 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:07,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:07,816 INFO L85 PathProgramCache]: Analyzing trace with hash 551816506, now seen corresponding path program 1 times [2024-11-07 02:58:07,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:07,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129492384] [2024-11-07 02:58:07,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:07,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:08,726 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:08,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:08,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129492384] [2024-11-07 02:58:08,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129492384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:58:08,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:58:08,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:58:08,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001604859] [2024-11-07 02:58:08,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:58:08,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:58:08,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:08,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:58:08,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:58:08,727 INFO L87 Difference]: Start difference. First operand 41561 states and 59442 transitions. Second operand has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:08,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:08,995 INFO L93 Difference]: Finished difference Result 82384 states and 117822 transitions. [2024-11-07 02:58:08,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:58:08,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2024-11-07 02:58:08,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:09,040 INFO L225 Difference]: With dead ends: 82384 [2024-11-07 02:58:09,040 INFO L226 Difference]: Without dead ends: 41561 [2024-11-07 02:58:09,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:58:09,072 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 17 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:09,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2544 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:58:09,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41561 states. [2024-11-07 02:58:09,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41561 to 41561. [2024-11-07 02:58:09,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41561 states, 41560 states have (on average 1.430245428296439) internal successors, (59441), 41560 states have internal predecessors, (59441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:09,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41561 states to 41561 states and 59441 transitions. [2024-11-07 02:58:09,436 INFO L78 Accepts]: Start accepts. Automaton has 41561 states and 59441 transitions. Word has length 275 [2024-11-07 02:58:09,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:09,436 INFO L471 AbstractCegarLoop]: Abstraction has 41561 states and 59441 transitions. [2024-11-07 02:58:09,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:09,436 INFO L276 IsEmpty]: Start isEmpty. Operand 41561 states and 59441 transitions. [2024-11-07 02:58:09,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-07 02:58:09,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:09,466 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:58:09,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-07 02:58:09,467 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:09,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:09,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1238197841, now seen corresponding path program 1 times [2024-11-07 02:58:09,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:09,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338349872] [2024-11-07 02:58:09,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:09,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:11,031 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:11,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:11,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338349872] [2024-11-07 02:58:11,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338349872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:58:11,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:58:11,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-07 02:58:11,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800400474] [2024-11-07 02:58:11,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:58:11,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 02:58:11,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:11,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 02:58:11,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-07 02:58:11,033 INFO L87 Difference]: Start difference. First operand 41561 states and 59441 transitions. Second operand has 15 states, 15 states have (on average 18.4) internal successors, (276), 15 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:11,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:11,636 INFO L93 Difference]: Finished difference Result 53100 states and 75956 transitions. [2024-11-07 02:58:11,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 02:58:11,637 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 18.4) internal successors, (276), 15 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 276 [2024-11-07 02:58:11,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:11,677 INFO L225 Difference]: With dead ends: 53100 [2024-11-07 02:58:11,678 INFO L226 Difference]: Without dead ends: 41687 [2024-11-07 02:58:11,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-07 02:58:11,699 INFO L432 NwaCegarLoop]: 638 mSDtfsCounter, 1025 mSDsluCounter, 6617 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 7255 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:11,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 7255 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 02:58:11,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41687 states. [2024-11-07 02:58:12,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41687 to 41663. [2024-11-07 02:58:12,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41663 states, 41662 states have (on average 1.4300561662906246) internal successors, (59579), 41662 states have internal predecessors, (59579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:12,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41663 states to 41663 states and 59579 transitions. [2024-11-07 02:58:12,088 INFO L78 Accepts]: Start accepts. Automaton has 41663 states and 59579 transitions. Word has length 276 [2024-11-07 02:58:12,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:12,088 INFO L471 AbstractCegarLoop]: Abstraction has 41663 states and 59579 transitions. [2024-11-07 02:58:12,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 18.4) internal successors, (276), 15 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:12,088 INFO L276 IsEmpty]: Start isEmpty. Operand 41663 states and 59579 transitions. [2024-11-07 02:58:12,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-07 02:58:12,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:12,122 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:58:12,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-07 02:58:12,122 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:12,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:12,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1307684708, now seen corresponding path program 1 times [2024-11-07 02:58:12,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:12,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432534724] [2024-11-07 02:58:12,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:12,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:14,093 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:14,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:14,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432534724] [2024-11-07 02:58:14,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432534724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:58:14,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:58:14,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-07 02:58:14,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626158016] [2024-11-07 02:58:14,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:58:14,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 02:58:14,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:14,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 02:58:14,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-07 02:58:14,094 INFO L87 Difference]: Start difference. First operand 41663 states and 59579 transitions. Second operand has 18 states, 18 states have (on average 15.333333333333334) internal successors, (276), 18 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:14,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:14,411 INFO L93 Difference]: Finished difference Result 53424 states and 76397 transitions. [2024-11-07 02:58:14,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 02:58:14,412 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.333333333333334) internal successors, (276), 18 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 276 [2024-11-07 02:58:14,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:14,451 INFO L225 Difference]: With dead ends: 53424 [2024-11-07 02:58:14,451 INFO L226 Difference]: Without dead ends: 41941 [2024-11-07 02:58:14,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2024-11-07 02:58:14,469 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 254 mSDsluCounter, 11623 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 12357 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:14,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 12357 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 02:58:14,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41941 states. [2024-11-07 02:58:14,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41941 to 41925. [2024-11-07 02:58:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41925 states, 41924 states have (on average 1.4296107241675413) internal successors, (59935), 41924 states have internal predecessors, (59935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:14,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41925 states to 41925 states and 59935 transitions. [2024-11-07 02:58:14,815 INFO L78 Accepts]: Start accepts. Automaton has 41925 states and 59935 transitions. Word has length 276 [2024-11-07 02:58:14,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:14,815 INFO L471 AbstractCegarLoop]: Abstraction has 41925 states and 59935 transitions. [2024-11-07 02:58:14,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.333333333333334) internal successors, (276), 18 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:14,815 INFO L276 IsEmpty]: Start isEmpty. Operand 41925 states and 59935 transitions. [2024-11-07 02:58:14,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-07 02:58:14,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:14,843 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:58:14,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-07 02:58:14,843 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:14,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:14,843 INFO L85 PathProgramCache]: Analyzing trace with hash 113477504, now seen corresponding path program 1 times [2024-11-07 02:58:14,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:14,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182625180] [2024-11-07 02:58:14,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:14,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:15,962 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:15,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:15,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182625180] [2024-11-07 02:58:15,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182625180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:58:15,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:58:15,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 02:58:15,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359664768] [2024-11-07 02:58:15,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:58:15,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 02:58:15,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:15,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 02:58:15,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:58:15,963 INFO L87 Difference]: Start difference. First operand 41925 states and 59935 transitions. Second operand has 8 states, 8 states have (on average 34.5) internal successors, (276), 8 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:16,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:16,087 INFO L93 Difference]: Finished difference Result 54024 states and 77223 transitions. [2024-11-07 02:58:16,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 02:58:16,087 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.5) internal successors, (276), 8 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 276 [2024-11-07 02:58:16,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:16,128 INFO L225 Difference]: With dead ends: 54024 [2024-11-07 02:58:16,128 INFO L226 Difference]: Without dead ends: 42021 [2024-11-07 02:58:16,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:58:16,148 INFO L432 NwaCegarLoop]: 704 mSDtfsCounter, 2 mSDsluCounter, 4202 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4906 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:16,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4906 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:58:16,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42021 states. [2024-11-07 02:58:16,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42021 to 42009. [2024-11-07 02:58:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42009 states, 42008 states have (on average 1.4293229860978862) internal successors, (60043), 42008 states have internal predecessors, (60043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:16,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42009 states to 42009 states and 60043 transitions. [2024-11-07 02:58:16,512 INFO L78 Accepts]: Start accepts. Automaton has 42009 states and 60043 transitions. Word has length 276 [2024-11-07 02:58:16,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:16,512 INFO L471 AbstractCegarLoop]: Abstraction has 42009 states and 60043 transitions. [2024-11-07 02:58:16,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.5) internal successors, (276), 8 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:16,512 INFO L276 IsEmpty]: Start isEmpty. Operand 42009 states and 60043 transitions. [2024-11-07 02:58:16,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-07 02:58:16,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:16,543 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:58:16,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-07 02:58:16,543 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:16,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:16,543 INFO L85 PathProgramCache]: Analyzing trace with hash -2096378907, now seen corresponding path program 1 times [2024-11-07 02:58:16,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:16,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953693806] [2024-11-07 02:58:16,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:16,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:17,162 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:17,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:17,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953693806] [2024-11-07 02:58:17,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953693806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:58:17,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:58:17,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 02:58:17,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030206187] [2024-11-07 02:58:17,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:58:17,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 02:58:17,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:17,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 02:58:17,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:58:17,163 INFO L87 Difference]: Start difference. First operand 42009 states and 60043 transitions. Second operand has 9 states, 9 states have (on average 30.666666666666668) internal successors, (276), 9 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:17,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:17,309 INFO L93 Difference]: Finished difference Result 56500 states and 80787 transitions. [2024-11-07 02:58:17,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 02:58:17,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 30.666666666666668) internal successors, (276), 9 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 276 [2024-11-07 02:58:17,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:17,350 INFO L225 Difference]: With dead ends: 56500 [2024-11-07 02:58:17,350 INFO L226 Difference]: Without dead ends: 42329 [2024-11-07 02:58:17,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:58:17,370 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 90 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5594 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:17,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5594 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:58:17,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42329 states. [2024-11-07 02:58:17,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42329 to 38577. [2024-11-07 02:58:17,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38577 states, 38576 states have (on average 1.425627333056823) internal successors, (54995), 38576 states have internal predecessors, (54995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:17,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38577 states to 38577 states and 54995 transitions. [2024-11-07 02:58:17,712 INFO L78 Accepts]: Start accepts. Automaton has 38577 states and 54995 transitions. Word has length 276 [2024-11-07 02:58:17,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:17,712 INFO L471 AbstractCegarLoop]: Abstraction has 38577 states and 54995 transitions. [2024-11-07 02:58:17,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 30.666666666666668) internal successors, (276), 9 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:17,712 INFO L276 IsEmpty]: Start isEmpty. Operand 38577 states and 54995 transitions. [2024-11-07 02:58:17,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-07 02:58:17,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:17,738 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:58:17,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-07 02:58:17,739 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:17,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:17,739 INFO L85 PathProgramCache]: Analyzing trace with hash -752934751, now seen corresponding path program 1 times [2024-11-07 02:58:17,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:17,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301474280] [2024-11-07 02:58:17,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:17,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:18,804 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:18,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:18,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301474280] [2024-11-07 02:58:18,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301474280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:58:18,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:58:18,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:58:18,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704634643] [2024-11-07 02:58:18,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:58:18,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:58:18,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:18,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:58:18,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:58:18,805 INFO L87 Difference]: Start difference. First operand 38577 states and 54995 transitions. Second operand has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:19,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:19,097 INFO L93 Difference]: Finished difference Result 56740 states and 81035 transitions. [2024-11-07 02:58:19,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:58:19,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 276 [2024-11-07 02:58:19,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:19,135 INFO L225 Difference]: With dead ends: 56740 [2024-11-07 02:58:19,136 INFO L226 Difference]: Without dead ends: 38577 [2024-11-07 02:58:19,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:58:19,155 INFO L432 NwaCegarLoop]: 660 mSDtfsCounter, 267 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3099 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:19,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 3099 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 02:58:19,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38577 states. [2024-11-07 02:58:19,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38577 to 38577. [2024-11-07 02:58:19,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38577 states, 38576 states have (on average 1.4223092077975943) internal successors, (54867), 38576 states have internal predecessors, (54867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:19,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38577 states to 38577 states and 54867 transitions. [2024-11-07 02:58:19,482 INFO L78 Accepts]: Start accepts. Automaton has 38577 states and 54867 transitions. Word has length 276 [2024-11-07 02:58:19,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:19,482 INFO L471 AbstractCegarLoop]: Abstraction has 38577 states and 54867 transitions. [2024-11-07 02:58:19,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:19,482 INFO L276 IsEmpty]: Start isEmpty. Operand 38577 states and 54867 transitions. [2024-11-07 02:58:19,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-07 02:58:19,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:19,510 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:58:19,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-11-07 02:58:19,510 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:19,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:19,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1017122266, now seen corresponding path program 1 times [2024-11-07 02:58:19,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:19,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676123552] [2024-11-07 02:58:19,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:19,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:20,051 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:20,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:20,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676123552] [2024-11-07 02:58:20,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676123552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:58:20,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:58:20,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:58:20,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635169451] [2024-11-07 02:58:20,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:58:20,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:58:20,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:20,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:58:20,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:58:20,052 INFO L87 Difference]: Start difference. First operand 38577 states and 54867 transitions. Second operand has 7 states, 7 states have (on average 39.42857142857143) internal successors, (276), 7 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)