./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_loop.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.sw_loop.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', '8bae34b88b69e395b0952f9a7e7405cfa96e2c3307dff9bcbb01737f33e4d41e'] 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.sw_loop.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 8bae34b88b69e395b0952f9a7e7405cfa96e2c3307dff9bcbb01737f33e4d41e --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 03:38:18,636 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 03:38:18,704 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 03:38:18,708 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 03:38:18,708 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 03:38:18,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 03:38:18,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 03:38:18,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 03:38:18,732 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 03:38:18,732 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 03:38:18,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 03:38:18,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 03:38:18,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 03:38:18,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 03:38:18,733 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 03:38:18,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 03:38:18,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 03:38:18,733 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 03:38:18,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 03:38:18,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 03:38:18,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 03:38:18,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 03:38:18,733 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 03:38:18,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 03:38:18,734 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 03:38:18,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 03:38:18,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 03:38:18,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 03:38:18,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 03:38:18,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:38:18,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 03:38:18,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 03:38:18,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 03:38:18,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 03:38:18,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 03:38:18,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 03:38:18,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 03:38:18,736 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 03:38:18,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 03:38:18,736 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 -> 8bae34b88b69e395b0952f9a7e7405cfa96e2c3307dff9bcbb01737f33e4d41e [2024-11-07 03:38:19,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 03:38:19,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 03:38:19,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 03:38:19,014 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 03:38:19,014 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 03:38:19,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_loop.c [2024-11-07 03:38:20,165 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 03:38:20,418 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 03:38:20,419 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_loop.c [2024-11-07 03:38:20,430 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c903066e5/fcaf9894f0544f478e65b69619439290/FLAGb1976ac8b [2024-11-07 03:38:20,750 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c903066e5/fcaf9894f0544f478e65b69619439290 [2024-11-07 03:38:20,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 03:38:20,753 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 03:38:20,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 03:38:20,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 03:38:20,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 03:38:20,762 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:38:20" (1/1) ... [2024-11-07 03:38:20,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f480ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:20, skipping insertion in model container [2024-11-07 03:38:20,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:38:20" (1/1) ... [2024-11-07 03:38:20,786 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 03:38:20,882 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.sw_loop.c[1247,1260] [2024-11-07 03:38:21,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:38:21,009 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 03:38:21,018 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.sw_loop.c[1247,1260] [2024-11-07 03:38:21,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:38:21,086 INFO L204 MainTranslator]: Completed translation [2024-11-07 03:38:21,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:21 WrapperNode [2024-11-07 03:38:21,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 03:38:21,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 03:38:21,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 03:38:21,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 03:38:21,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:21" (1/1) ... [2024-11-07 03:38:21,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:21" (1/1) ... [2024-11-07 03:38:21,241 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1013 [2024-11-07 03:38:21,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 03:38:21,242 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 03:38:21,242 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 03:38:21,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 03:38:21,249 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:21" (1/1) ... [2024-11-07 03:38:21,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:21" (1/1) ... [2024-11-07 03:38:21,267 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:21" (1/1) ... [2024-11-07 03:38:21,328 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 03:38:21,328 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:21" (1/1) ... [2024-11-07 03:38:21,328 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:21" (1/1) ... [2024-11-07 03:38:21,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:21" (1/1) ... [2024-11-07 03:38:21,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:21" (1/1) ... [2024-11-07 03:38:21,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:21" (1/1) ... [2024-11-07 03:38:21,392 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:21" (1/1) ... [2024-11-07 03:38:21,409 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 03:38:21,411 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 03:38:21,411 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 03:38:21,411 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 03:38:21,412 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:21" (1/1) ... [2024-11-07 03:38:21,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:38:21,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:38:21,439 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 03:38:21,446 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 03:38:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 03:38:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 03:38:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 03:38:21,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 03:38:21,615 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 03:38:21,617 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 03:38:22,639 INFO L? ?]: Removed 647 outVars from TransFormulas that were not future-live. [2024-11-07 03:38:22,639 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 03:38:22,655 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 03:38:22,657 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 03:38:22,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:38:22 BoogieIcfgContainer [2024-11-07 03:38:22,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 03:38:22,660 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 03:38:22,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 03:38:22,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 03:38:22,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:38:20" (1/3) ... [2024-11-07 03:38:22,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1dc294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:38:22, skipping insertion in model container [2024-11-07 03:38:22,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:21" (2/3) ... [2024-11-07 03:38:22,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1dc294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:38:22, skipping insertion in model container [2024-11-07 03:38:22,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:38:22" (3/3) ... [2024-11-07 03:38:22,667 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_loop.c [2024-11-07 03:38:22,678 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 03:38:22,679 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 03:38:22,726 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 03:38:22,735 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;@5998edf8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 03:38:22,736 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 03:38:22,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 298 states, 296 states have (on average 1.4966216216216217) internal successors, (443), 297 states have internal predecessors, (443), 0 states have call successors, (0), 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 03:38:22,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-07 03:38:22,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:22,746 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:38:22,746 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:22,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:22,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1579872556, now seen corresponding path program 1 times [2024-11-07 03:38:22,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:22,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510862729] [2024-11-07 03:38:22,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:22,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:23,180 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 03:38:23,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:23,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510862729] [2024-11-07 03:38:23,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510862729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:23,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:23,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:38:23,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642176121] [2024-11-07 03:38:23,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:23,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:38:23,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:23,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:38:23,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:38:23,207 INFO L87 Difference]: Start difference. First operand has 298 states, 296 states have (on average 1.4966216216216217) internal successors, (443), 297 states have internal predecessors, (443), 0 states have call successors, (0), 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 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 03:38:23,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:23,270 INFO L93 Difference]: Finished difference Result 557 states and 831 transitions. [2024-11-07 03:38:23,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:38:23,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-11-07 03:38:23,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:23,287 INFO L225 Difference]: With dead ends: 557 [2024-11-07 03:38:23,287 INFO L226 Difference]: Without dead ends: 297 [2024-11-07 03:38:23,292 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 03:38:23,296 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 0 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1305 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 03:38:23,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1305 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:38:23,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-07 03:38:23,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2024-11-07 03:38:23,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.489864864864865) internal successors, (441), 296 states have internal predecessors, (441), 0 states have call successors, (0), 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 03:38:23,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 441 transitions. [2024-11-07 03:38:23,346 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 441 transitions. Word has length 27 [2024-11-07 03:38:23,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:23,349 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 441 transitions. [2024-11-07 03:38:23,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 03:38:23,349 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 441 transitions. [2024-11-07 03:38:23,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-07 03:38:23,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:23,350 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:38:23,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 03:38:23,350 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:23,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:23,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1729713684, now seen corresponding path program 1 times [2024-11-07 03:38:23,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:23,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217735745] [2024-11-07 03:38:23,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:23,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:23,558 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 03:38:23,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:23,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217735745] [2024-11-07 03:38:23,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217735745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:23,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:23,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:38:23,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44441137] [2024-11-07 03:38:23,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:23,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:38:23,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:23,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:38:23,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:38:23,560 INFO L87 Difference]: Start difference. First operand 297 states and 441 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 03:38:23,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:23,605 INFO L93 Difference]: Finished difference Result 558 states and 829 transitions. [2024-11-07 03:38:23,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:38:23,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2024-11-07 03:38:23,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:23,607 INFO L225 Difference]: With dead ends: 558 [2024-11-07 03:38:23,607 INFO L226 Difference]: Without dead ends: 299 [2024-11-07 03:38:23,607 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 03:38:23,608 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 0 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1301 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 03:38:23,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1301 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:38:23,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-07 03:38:23,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2024-11-07 03:38:23,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.4865771812080537) internal successors, (443), 298 states have internal predecessors, (443), 0 states have call successors, (0), 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 03:38:23,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 443 transitions. [2024-11-07 03:38:23,617 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 443 transitions. Word has length 28 [2024-11-07 03:38:23,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:23,617 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 443 transitions. [2024-11-07 03:38:23,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 03:38:23,618 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 443 transitions. [2024-11-07 03:38:23,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-07 03:38:23,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:23,618 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:38:23,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 03:38:23,619 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:23,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:23,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1115484845, now seen corresponding path program 1 times [2024-11-07 03:38:23,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:23,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657760974] [2024-11-07 03:38:23,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:23,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:23,751 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 03:38:23,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:23,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657760974] [2024-11-07 03:38:23,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657760974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:23,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:23,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:38:23,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933769140] [2024-11-07 03:38:23,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:23,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:38:23,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:23,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:38:23,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:38:23,753 INFO L87 Difference]: Start difference. First operand 299 states and 443 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 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 03:38:23,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:23,844 INFO L93 Difference]: Finished difference Result 795 states and 1180 transitions. [2024-11-07 03:38:23,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:38:23,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-11-07 03:38:23,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:23,847 INFO L225 Difference]: With dead ends: 795 [2024-11-07 03:38:23,848 INFO L226 Difference]: Without dead ends: 534 [2024-11-07 03:38:23,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:23,850 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 1117 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:23,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 1275 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:23,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-07 03:38:23,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 301. [2024-11-07 03:38:23,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.4833333333333334) internal successors, (445), 300 states have internal predecessors, (445), 0 states have call successors, (0), 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 03:38:23,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 445 transitions. [2024-11-07 03:38:23,863 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 445 transitions. Word has length 29 [2024-11-07 03:38:23,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:23,863 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 445 transitions. [2024-11-07 03:38:23,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 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 03:38:23,864 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 445 transitions. [2024-11-07 03:38:23,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-07 03:38:23,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:23,867 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:23,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 03:38:23,868 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:23,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:23,868 INFO L85 PathProgramCache]: Analyzing trace with hash -909755532, now seen corresponding path program 1 times [2024-11-07 03:38:23,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:23,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391944594] [2024-11-07 03:38:23,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:23,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:24,909 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:24,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:24,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391944594] [2024-11-07 03:38:24,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391944594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:24,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:24,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:38:24,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559003006] [2024-11-07 03:38:24,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:24,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:38:24,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:24,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:38:24,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:38:24,911 INFO L87 Difference]: Start difference. First operand 301 states and 445 transitions. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 0 states have call successors, (0), 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 03:38:25,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:25,015 INFO L93 Difference]: Finished difference Result 778 states and 1154 transitions. [2024-11-07 03:38:25,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:38:25,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2024-11-07 03:38:25,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:25,023 INFO L225 Difference]: With dead ends: 778 [2024-11-07 03:38:25,023 INFO L226 Difference]: Without dead ends: 517 [2024-11-07 03:38:25,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:38:25,025 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 1048 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:25,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 1578 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:25,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-07 03:38:25,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 326. [2024-11-07 03:38:25,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 325 states have (on average 1.4738461538461538) internal successors, (479), 325 states have internal predecessors, (479), 0 states have call successors, (0), 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 03:38:25,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 479 transitions. [2024-11-07 03:38:25,036 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 479 transitions. Word has length 158 [2024-11-07 03:38:25,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:25,038 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 479 transitions. [2024-11-07 03:38:25,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 0 states have call successors, (0), 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 03:38:25,039 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 479 transitions. [2024-11-07 03:38:25,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-07 03:38:25,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:25,043 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:25,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 03:38:25,043 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:25,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:25,043 INFO L85 PathProgramCache]: Analyzing trace with hash -677895360, now seen corresponding path program 1 times [2024-11-07 03:38:25,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:25,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456741910] [2024-11-07 03:38:25,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:25,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:25,890 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:25,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:25,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456741910] [2024-11-07 03:38:25,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456741910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:25,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:25,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:38:25,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594195295] [2024-11-07 03:38:25,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:25,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:38:25,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:25,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:38:25,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:38:25,893 INFO L87 Difference]: Start difference. First operand 326 states and 479 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 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 03:38:25,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:25,995 INFO L93 Difference]: Finished difference Result 778 states and 1152 transitions. [2024-11-07 03:38:25,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:38:25,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2024-11-07 03:38:25,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:25,998 INFO L225 Difference]: With dead ends: 778 [2024-11-07 03:38:25,998 INFO L226 Difference]: Without dead ends: 517 [2024-11-07 03:38:25,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:25,999 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 1026 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:25,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1263 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:26,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-07 03:38:26,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 355. [2024-11-07 03:38:26,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 354 states have (on average 1.4717514124293785) internal successors, (521), 354 states have internal predecessors, (521), 0 states have call successors, (0), 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 03:38:26,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 521 transitions. [2024-11-07 03:38:26,016 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 521 transitions. Word has length 159 [2024-11-07 03:38:26,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:26,016 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 521 transitions. [2024-11-07 03:38:26,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 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 03:38:26,016 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 521 transitions. [2024-11-07 03:38:26,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-07 03:38:26,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:26,022 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:26,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 03:38:26,022 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:26,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:26,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1680367235, now seen corresponding path program 1 times [2024-11-07 03:38:26,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:26,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740056325] [2024-11-07 03:38:26,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:26,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:27,047 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:27,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:27,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740056325] [2024-11-07 03:38:27,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740056325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:27,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:27,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:38:27,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287464225] [2024-11-07 03:38:27,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:27,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:38:27,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:27,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:38:27,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:38:27,051 INFO L87 Difference]: Start difference. First operand 355 states and 521 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 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 03:38:27,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:27,135 INFO L93 Difference]: Finished difference Result 778 states and 1150 transitions. [2024-11-07 03:38:27,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:38:27,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2024-11-07 03:38:27,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:27,137 INFO L225 Difference]: With dead ends: 778 [2024-11-07 03:38:27,138 INFO L226 Difference]: Without dead ends: 517 [2024-11-07 03:38:27,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:27,141 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 996 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 1262 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 03:38:27,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 1262 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:38:27,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-07 03:38:27,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 406. [2024-11-07 03:38:27,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 1.471604938271605) internal successors, (596), 405 states have internal predecessors, (596), 0 states have call successors, (0), 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 03:38:27,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 596 transitions. [2024-11-07 03:38:27,156 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 596 transitions. Word has length 161 [2024-11-07 03:38:27,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:27,156 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 596 transitions. [2024-11-07 03:38:27,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 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 03:38:27,157 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 596 transitions. [2024-11-07 03:38:27,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-07 03:38:27,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:27,158 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:27,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 03:38:27,158 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:27,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:27,159 INFO L85 PathProgramCache]: Analyzing trace with hash -433125898, now seen corresponding path program 1 times [2024-11-07 03:38:27,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:27,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763661199] [2024-11-07 03:38:27,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:27,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:27,966 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:27,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:27,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763661199] [2024-11-07 03:38:27,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763661199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:27,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:27,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:38:27,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899423318] [2024-11-07 03:38:27,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:27,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:38:27,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:27,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:38:27,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:38:27,969 INFO L87 Difference]: Start difference. First operand 406 states and 596 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 0 states have call successors, (0), 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 03:38:28,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:28,097 INFO L93 Difference]: Finished difference Result 778 states and 1149 transitions. [2024-11-07 03:38:28,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:38:28,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2024-11-07 03:38:28,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:28,100 INFO L225 Difference]: With dead ends: 778 [2024-11-07 03:38:28,100 INFO L226 Difference]: Without dead ends: 517 [2024-11-07 03:38:28,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:28,102 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 951 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:28,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 1262 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:28,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-07 03:38:28,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 490. [2024-11-07 03:38:28,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 489 states have (on average 1.474437627811861) internal successors, (721), 489 states have internal predecessors, (721), 0 states have call successors, (0), 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 03:38:28,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 721 transitions. [2024-11-07 03:38:28,119 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 721 transitions. Word has length 162 [2024-11-07 03:38:28,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:28,119 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 721 transitions. [2024-11-07 03:38:28,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 0 states have call successors, (0), 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 03:38:28,119 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 721 transitions. [2024-11-07 03:38:28,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-07 03:38:28,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:28,121 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:28,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 03:38:28,122 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:28,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:28,122 INFO L85 PathProgramCache]: Analyzing trace with hash -623708650, now seen corresponding path program 1 times [2024-11-07 03:38:28,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:28,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811828369] [2024-11-07 03:38:28,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:28,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:28,866 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:28,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:28,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811828369] [2024-11-07 03:38:28,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811828369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:28,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:28,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:38:28,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778430043] [2024-11-07 03:38:28,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:28,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:38:28,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:28,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:38:28,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:38:28,869 INFO L87 Difference]: Start difference. First operand 490 states and 721 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 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 03:38:28,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:28,956 INFO L93 Difference]: Finished difference Result 804 states and 1186 transitions. [2024-11-07 03:38:28,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:38:28,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2024-11-07 03:38:28,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:28,959 INFO L225 Difference]: With dead ends: 804 [2024-11-07 03:38:28,959 INFO L226 Difference]: Without dead ends: 517 [2024-11-07 03:38:28,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:28,962 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 963 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:28,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 1262 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:28,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-07 03:38:28,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 490. [2024-11-07 03:38:28,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 489 states have (on average 1.4723926380368098) internal successors, (720), 489 states have internal predecessors, (720), 0 states have call successors, (0), 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 03:38:28,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 720 transitions. [2024-11-07 03:38:28,974 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 720 transitions. Word has length 163 [2024-11-07 03:38:28,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:28,974 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 720 transitions. [2024-11-07 03:38:28,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 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 03:38:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 720 transitions. [2024-11-07 03:38:28,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-07 03:38:28,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:28,976 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:28,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 03:38:28,976 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:28,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:28,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1521687385, now seen corresponding path program 1 times [2024-11-07 03:38:28,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:28,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910135624] [2024-11-07 03:38:28,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:28,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:29,706 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:29,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:29,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910135624] [2024-11-07 03:38:29,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910135624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:29,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:29,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:38:29,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738447429] [2024-11-07 03:38:29,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:29,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:38:29,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:29,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:38:29,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:38:29,710 INFO L87 Difference]: Start difference. First operand 490 states and 720 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 0 states have call successors, (0), 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 03:38:29,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:29,810 INFO L93 Difference]: Finished difference Result 832 states and 1226 transitions. [2024-11-07 03:38:29,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:38:29,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2024-11-07 03:38:29,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:29,814 INFO L225 Difference]: With dead ends: 832 [2024-11-07 03:38:29,814 INFO L226 Difference]: Without dead ends: 517 [2024-11-07 03:38:29,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:29,816 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 975 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:29,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 1262 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:29,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-07 03:38:29,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 490. [2024-11-07 03:38:29,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 489 states have (on average 1.4703476482617588) internal successors, (719), 489 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 03:38:29,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 719 transitions. [2024-11-07 03:38:29,831 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 719 transitions. Word has length 164 [2024-11-07 03:38:29,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:29,831 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 719 transitions. [2024-11-07 03:38:29,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 0 states have call successors, (0), 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 03:38:29,832 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 719 transitions. [2024-11-07 03:38:29,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-07 03:38:29,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:29,833 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:29,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 03:38:29,833 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:29,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:29,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1168370331, now seen corresponding path program 1 times [2024-11-07 03:38:29,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:29,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614322596] [2024-11-07 03:38:29,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:29,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:30,542 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:30,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:30,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614322596] [2024-11-07 03:38:30,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614322596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:30,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:30,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:38:30,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152296715] [2024-11-07 03:38:30,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:30,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:38:30,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:30,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:38:30,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:30,544 INFO L87 Difference]: Start difference. First operand 490 states and 719 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 0 states have call successors, (0), 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 03:38:30,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:30,648 INFO L93 Difference]: Finished difference Result 786 states and 1158 transitions. [2024-11-07 03:38:30,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:38:30,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2024-11-07 03:38:30,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:30,650 INFO L225 Difference]: With dead ends: 786 [2024-11-07 03:38:30,651 INFO L226 Difference]: Without dead ends: 525 [2024-11-07 03:38:30,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:38:30,652 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 965 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:30,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1873 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:30,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-11-07 03:38:30,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 493. [2024-11-07 03:38:30,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 492 states have (on average 1.4695121951219512) internal successors, (723), 492 states have internal predecessors, (723), 0 states have call successors, (0), 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 03:38:30,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 723 transitions. [2024-11-07 03:38:30,663 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 723 transitions. Word has length 165 [2024-11-07 03:38:30,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:30,663 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 723 transitions. [2024-11-07 03:38:30,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 0 states have call successors, (0), 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 03:38:30,663 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 723 transitions. [2024-11-07 03:38:30,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-07 03:38:30,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:30,665 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:30,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 03:38:30,665 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:30,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:30,666 INFO L85 PathProgramCache]: Analyzing trace with hash -583480850, now seen corresponding path program 1 times [2024-11-07 03:38:30,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:30,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092976312] [2024-11-07 03:38:30,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:30,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:31,396 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:31,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:31,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092976312] [2024-11-07 03:38:31,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092976312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:31,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:31,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:38:31,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282272176] [2024-11-07 03:38:31,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:31,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:38:31,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:31,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:38:31,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:31,398 INFO L87 Difference]: Start difference. First operand 493 states and 723 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 0 states have call successors, (0), 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 03:38:31,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:31,505 INFO L93 Difference]: Finished difference Result 841 states and 1237 transitions. [2024-11-07 03:38:31,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:38:31,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-07 03:38:31,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:31,508 INFO L225 Difference]: With dead ends: 841 [2024-11-07 03:38:31,508 INFO L226 Difference]: Without dead ends: 527 [2024-11-07 03:38:31,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:38:31,509 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 995 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:31,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1873 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:31,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-07 03:38:31,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 495. [2024-11-07 03:38:31,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 494 states have (on average 1.4676113360323886) internal successors, (725), 494 states have internal predecessors, (725), 0 states have call successors, (0), 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 03:38:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 725 transitions. [2024-11-07 03:38:31,519 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 725 transitions. Word has length 166 [2024-11-07 03:38:31,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:31,520 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 725 transitions. [2024-11-07 03:38:31,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 0 states have call successors, (0), 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 03:38:31,520 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 725 transitions. [2024-11-07 03:38:31,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-07 03:38:31,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:31,521 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:31,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 03:38:31,522 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:31,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:31,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1960370405, now seen corresponding path program 1 times [2024-11-07 03:38:31,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:31,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721778178] [2024-11-07 03:38:31,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:31,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:32,291 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:32,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:32,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721778178] [2024-11-07 03:38:32,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721778178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:32,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:32,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:38:32,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666838006] [2024-11-07 03:38:32,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:32,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:38:32,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:32,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:38:32,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:32,293 INFO L87 Difference]: Start difference. First operand 495 states and 725 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 0 states have call successors, (0), 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 03:38:32,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:32,398 INFO L93 Difference]: Finished difference Result 815 states and 1198 transitions. [2024-11-07 03:38:32,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:38:32,399 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2024-11-07 03:38:32,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:32,401 INFO L225 Difference]: With dead ends: 815 [2024-11-07 03:38:32,401 INFO L226 Difference]: Without dead ends: 529 [2024-11-07 03:38:32,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:38:32,402 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 979 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:32,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 1873 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:32,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-07 03:38:32,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 497. [2024-11-07 03:38:32,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.465725806451613) internal successors, (727), 496 states have internal predecessors, (727), 0 states have call successors, (0), 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 03:38:32,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 727 transitions. [2024-11-07 03:38:32,413 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 727 transitions. Word has length 167 [2024-11-07 03:38:32,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:32,413 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 727 transitions. [2024-11-07 03:38:32,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 0 states have call successors, (0), 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 03:38:32,413 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 727 transitions. [2024-11-07 03:38:32,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 03:38:32,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:32,414 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:32,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 03:38:32,415 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:32,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:32,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1161984459, now seen corresponding path program 1 times [2024-11-07 03:38:32,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:32,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335739065] [2024-11-07 03:38:32,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:32,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:33,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:33,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:33,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335739065] [2024-11-07 03:38:33,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335739065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:33,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:33,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:38:33,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622639914] [2024-11-07 03:38:33,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:33,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:38:33,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:33,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:38:33,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:33,071 INFO L87 Difference]: Start difference. First operand 497 states and 727 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 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 03:38:33,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:33,190 INFO L93 Difference]: Finished difference Result 817 states and 1200 transitions. [2024-11-07 03:38:33,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:38:33,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-11-07 03:38:33,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:33,192 INFO L225 Difference]: With dead ends: 817 [2024-11-07 03:38:33,192 INFO L226 Difference]: Without dead ends: 535 [2024-11-07 03:38:33,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:38:33,193 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 988 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 1883 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:33,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 1883 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:33,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-07 03:38:33,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 499. [2024-11-07 03:38:33,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 498 states have (on average 1.463855421686747) internal successors, (729), 498 states have internal predecessors, (729), 0 states have call successors, (0), 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 03:38:33,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 729 transitions. [2024-11-07 03:38:33,205 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 729 transitions. Word has length 168 [2024-11-07 03:38:33,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:33,205 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 729 transitions. [2024-11-07 03:38:33,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 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 03:38:33,205 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 729 transitions. [2024-11-07 03:38:33,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 03:38:33,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:33,207 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:33,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 03:38:33,207 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:33,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:33,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1061113191, now seen corresponding path program 1 times [2024-11-07 03:38:33,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:33,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498847474] [2024-11-07 03:38:33,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:33,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:33,860 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:33,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:33,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498847474] [2024-11-07 03:38:33,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498847474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:33,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:33,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:38:33,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907230167] [2024-11-07 03:38:33,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:33,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:38:33,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:33,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:38:33,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:38:33,862 INFO L87 Difference]: Start difference. First operand 499 states and 729 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 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 03:38:33,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:33,943 INFO L93 Difference]: Finished difference Result 789 states and 1159 transitions. [2024-11-07 03:38:33,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:38:33,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-11-07 03:38:33,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:33,945 INFO L225 Difference]: With dead ends: 789 [2024-11-07 03:38:33,946 INFO L226 Difference]: Without dead ends: 528 [2024-11-07 03:38:33,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:33,947 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 931 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:33,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 1258 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:33,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-07 03:38:33,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 526. [2024-11-07 03:38:33,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.4628571428571429) internal successors, (768), 525 states have internal predecessors, (768), 0 states have call successors, (0), 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 03:38:33,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 768 transitions. [2024-11-07 03:38:33,957 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 768 transitions. Word has length 168 [2024-11-07 03:38:33,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:33,957 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 768 transitions. [2024-11-07 03:38:33,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 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 03:38:33,957 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 768 transitions. [2024-11-07 03:38:33,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-07 03:38:33,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:33,959 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:33,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 03:38:33,959 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:33,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:33,959 INFO L85 PathProgramCache]: Analyzing trace with hash -91921578, now seen corresponding path program 1 times [2024-11-07 03:38:33,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:33,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324226300] [2024-11-07 03:38:33,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:33,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:34,543 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:34,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:34,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324226300] [2024-11-07 03:38:34,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324226300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:34,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:34,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:38:34,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490495674] [2024-11-07 03:38:34,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:34,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:38:34,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:34,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:38:34,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:34,545 INFO L87 Difference]: Start difference. First operand 526 states and 768 transitions. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 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 03:38:34,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:34,646 INFO L93 Difference]: Finished difference Result 816 states and 1197 transitions. [2024-11-07 03:38:34,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:38:34,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-07 03:38:34,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:34,649 INFO L225 Difference]: With dead ends: 816 [2024-11-07 03:38:34,649 INFO L226 Difference]: Without dead ends: 537 [2024-11-07 03:38:34,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:38:34,650 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 970 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:34,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 1881 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:34,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-07 03:38:34,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 528. [2024-11-07 03:38:34,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.4611005692599621) internal successors, (770), 527 states have internal predecessors, (770), 0 states have call successors, (0), 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 03:38:34,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 770 transitions. [2024-11-07 03:38:34,660 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 770 transitions. Word has length 169 [2024-11-07 03:38:34,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:34,661 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 770 transitions. [2024-11-07 03:38:34,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 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 03:38:34,661 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 770 transitions. [2024-11-07 03:38:34,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-07 03:38:34,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:34,662 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:34,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 03:38:34,662 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:34,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:34,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1132940090, now seen corresponding path program 1 times [2024-11-07 03:38:34,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:34,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484954186] [2024-11-07 03:38:34,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:34,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:35,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:35,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:35,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484954186] [2024-11-07 03:38:35,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484954186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:35,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:35,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:38:35,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118912451] [2024-11-07 03:38:35,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:35,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:38:35,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:35,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:38:35,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:35,293 INFO L87 Difference]: Start difference. First operand 528 states and 770 transitions. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 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 03:38:35,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:35,403 INFO L93 Difference]: Finished difference Result 796 states and 1167 transitions. [2024-11-07 03:38:35,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:38:35,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-07 03:38:35,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:35,405 INFO L225 Difference]: With dead ends: 796 [2024-11-07 03:38:35,405 INFO L226 Difference]: Without dead ends: 535 [2024-11-07 03:38:35,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:38:35,406 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 939 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:35,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 2101 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:35,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-07 03:38:35,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 531. [2024-11-07 03:38:35,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 530 states have (on average 1.460377358490566) internal successors, (774), 530 states have internal predecessors, (774), 0 states have call successors, (0), 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 03:38:35,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 774 transitions. [2024-11-07 03:38:35,417 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 774 transitions. Word has length 169 [2024-11-07 03:38:35,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:35,417 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 774 transitions. [2024-11-07 03:38:35,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 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 03:38:35,418 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 774 transitions. [2024-11-07 03:38:35,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-07 03:38:35,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:35,419 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:35,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 03:38:35,419 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:35,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:35,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1516275082, now seen corresponding path program 1 times [2024-11-07 03:38:35,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:35,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963647298] [2024-11-07 03:38:35,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:35,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:36,127 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:36,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:36,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963647298] [2024-11-07 03:38:36,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963647298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:36,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:36,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:38:36,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393530144] [2024-11-07 03:38:36,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:36,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:38:36,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:36,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:38:36,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:36,128 INFO L87 Difference]: Start difference. First operand 531 states and 774 transitions. Second operand has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 0 states have call successors, (0), 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 03:38:36,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:36,237 INFO L93 Difference]: Finished difference Result 802 states and 1175 transitions. [2024-11-07 03:38:36,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:38:36,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2024-11-07 03:38:36,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:36,240 INFO L225 Difference]: With dead ends: 802 [2024-11-07 03:38:36,240 INFO L226 Difference]: Without dead ends: 541 [2024-11-07 03:38:36,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:38:36,241 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 948 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:36,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 2101 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:36,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-07 03:38:36,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 537. [2024-11-07 03:38:36,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.458955223880597) internal successors, (782), 536 states have internal predecessors, (782), 0 states have call successors, (0), 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 03:38:36,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 782 transitions. [2024-11-07 03:38:36,253 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 782 transitions. Word has length 170 [2024-11-07 03:38:36,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:36,253 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 782 transitions. [2024-11-07 03:38:36,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 0 states have call successors, (0), 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 03:38:36,254 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 782 transitions. [2024-11-07 03:38:36,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-07 03:38:36,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:36,255 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:36,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 03:38:36,255 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:36,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:36,256 INFO L85 PathProgramCache]: Analyzing trace with hash 724587046, now seen corresponding path program 1 times [2024-11-07 03:38:36,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:36,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445922825] [2024-11-07 03:38:36,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:36,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:36,954 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:36,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:36,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445922825] [2024-11-07 03:38:36,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445922825] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:38:36,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70332331] [2024-11-07 03:38:36,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:36,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:38:36,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:38:36,958 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:38:36,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 03:38:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:37,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-07 03:38:37,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:38:37,754 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:37,754 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:38:37,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70332331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:37,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:38:37,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-07 03:38:37,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155507961] [2024-11-07 03:38:37,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:37,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:38:37,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:37,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:38:37,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-07 03:38:37,756 INFO L87 Difference]: Start difference. First operand 537 states and 782 transitions. Second operand has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 0 states have call successors, (0), 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 03:38:38,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:38,017 INFO L93 Difference]: Finished difference Result 1003 states and 1463 transitions. [2024-11-07 03:38:38,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:38:38,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2024-11-07 03:38:38,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:38,019 INFO L225 Difference]: With dead ends: 1003 [2024-11-07 03:38:38,019 INFO L226 Difference]: Without dead ends: 540 [2024-11-07 03:38:38,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-11-07 03:38:38,021 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 1037 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:38,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1824 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:38:38,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-07 03:38:38,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2024-11-07 03:38:38,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 539 states have (on average 1.4564007421150278) internal successors, (785), 539 states have internal predecessors, (785), 0 states have call successors, (0), 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 03:38:38,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 785 transitions. [2024-11-07 03:38:38,030 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 785 transitions. Word has length 170 [2024-11-07 03:38:38,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:38,030 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 785 transitions. [2024-11-07 03:38:38,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 0 states have call successors, (0), 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 03:38:38,030 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 785 transitions. [2024-11-07 03:38:38,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-07 03:38:38,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:38,032 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:38,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 03:38:38,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-07 03:38:38,233 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:38,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:38,233 INFO L85 PathProgramCache]: Analyzing trace with hash -74284501, now seen corresponding path program 1 times [2024-11-07 03:38:38,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:38,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64571106] [2024-11-07 03:38:38,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:38,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:38,856 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:38,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:38,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64571106] [2024-11-07 03:38:38,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64571106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:38,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:38,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:38:38,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109233898] [2024-11-07 03:38:38,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:38,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:38:38,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:38,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:38:38,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:38:38,859 INFO L87 Difference]: Start difference. First operand 540 states and 785 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 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 03:38:38,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:38,952 INFO L93 Difference]: Finished difference Result 898 states and 1309 transitions. [2024-11-07 03:38:38,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:38:38,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2024-11-07 03:38:38,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:38,958 INFO L225 Difference]: With dead ends: 898 [2024-11-07 03:38:38,958 INFO L226 Difference]: Without dead ends: 538 [2024-11-07 03:38:38,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:38,959 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 971 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:38,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 1263 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:38,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-07 03:38:38,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2024-11-07 03:38:38,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4562383612662941) internal successors, (782), 537 states have internal predecessors, (782), 0 states have call successors, (0), 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 03:38:38,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 782 transitions. [2024-11-07 03:38:38,968 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 782 transitions. Word has length 171 [2024-11-07 03:38:38,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:38,968 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 782 transitions. [2024-11-07 03:38:38,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 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 03:38:38,968 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 782 transitions. [2024-11-07 03:38:38,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-07 03:38:38,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:38,969 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:38,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 03:38:38,970 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:38,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:38,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1326176569, now seen corresponding path program 1 times [2024-11-07 03:38:38,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:38,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151876102] [2024-11-07 03:38:38,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:38,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:39,518 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:39,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:39,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151876102] [2024-11-07 03:38:39,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151876102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:39,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:39,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:38:39,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558562330] [2024-11-07 03:38:39,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:39,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:38:39,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:39,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:38:39,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:38:39,520 INFO L87 Difference]: Start difference. First operand 538 states and 782 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 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 03:38:39,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:39,609 INFO L93 Difference]: Finished difference Result 926 states and 1349 transitions. [2024-11-07 03:38:39,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:38:39,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2024-11-07 03:38:39,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:39,611 INFO L225 Difference]: With dead ends: 926 [2024-11-07 03:38:39,611 INFO L226 Difference]: Without dead ends: 538 [2024-11-07 03:38:39,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:39,612 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 984 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:39,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 1263 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:39,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-07 03:38:39,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2024-11-07 03:38:39,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4543761638733705) internal successors, (781), 537 states have internal predecessors, (781), 0 states have call successors, (0), 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 03:38:39,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 781 transitions. [2024-11-07 03:38:39,626 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 781 transitions. Word has length 171 [2024-11-07 03:38:39,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:39,627 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 781 transitions. [2024-11-07 03:38:39,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 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 03:38:39,627 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 781 transitions. [2024-11-07 03:38:39,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-07 03:38:39,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:39,628 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:39,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 03:38:39,628 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:39,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:39,629 INFO L85 PathProgramCache]: Analyzing trace with hash 2037934989, now seen corresponding path program 1 times [2024-11-07 03:38:39,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:39,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17906336] [2024-11-07 03:38:39,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:39,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:40,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:40,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:40,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17906336] [2024-11-07 03:38:40,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17906336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:38:40,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174086808] [2024-11-07 03:38:40,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:40,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:38:40,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:38:40,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:38:40,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 03:38:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:41,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-07 03:38:41,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:38:42,047 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:42,047 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:38:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:42,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174086808] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 03:38:42,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 03:38:42,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16, 13] total 35 [2024-11-07 03:38:42,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556469708] [2024-11-07 03:38:42,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 03:38:42,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-07 03:38:42,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:42,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-07 03:38:42,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=993, Unknown=0, NotChecked=0, Total=1190 [2024-11-07 03:38:42,798 INFO L87 Difference]: Start difference. First operand 538 states and 781 transitions. Second operand has 35 states, 35 states have (on average 14.342857142857143) internal successors, (502), 35 states have internal predecessors, (502), 0 states have call successors, (0), 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 03:38:44,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:44,120 INFO L93 Difference]: Finished difference Result 1530 states and 2225 transitions. [2024-11-07 03:38:44,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 03:38:44,121 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 14.342857142857143) internal successors, (502), 35 states have internal predecessors, (502), 0 states have call successors, (0), 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 172 [2024-11-07 03:38:44,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:44,124 INFO L225 Difference]: With dead ends: 1530 [2024-11-07 03:38:44,125 INFO L226 Difference]: Without dead ends: 1051 [2024-11-07 03:38:44,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=515, Invalid=2347, Unknown=0, NotChecked=0, Total=2862 [2024-11-07 03:38:44,128 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 4889 mSDsluCounter, 7774 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4889 SdHoareTripleChecker+Valid, 8120 SdHoareTripleChecker+Invalid, 1939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:44,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4889 Valid, 8120 Invalid, 1939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 03:38:44,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2024-11-07 03:38:44,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 792. [2024-11-07 03:38:44,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 791 states have (on average 1.4424778761061947) internal successors, (1141), 791 states have internal predecessors, (1141), 0 states have call successors, (0), 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 03:38:44,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1141 transitions. [2024-11-07 03:38:44,141 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1141 transitions. Word has length 172 [2024-11-07 03:38:44,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:44,142 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1141 transitions. [2024-11-07 03:38:44,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 14.342857142857143) internal successors, (502), 35 states have internal predecessors, (502), 0 states have call successors, (0), 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 03:38:44,142 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1141 transitions. [2024-11-07 03:38:44,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 03:38:44,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:44,144 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:44,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 03:38:44,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:38:44,347 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:44,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:44,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1537194315, now seen corresponding path program 1 times [2024-11-07 03:38:44,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:44,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202400985] [2024-11-07 03:38:44,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:44,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:44,690 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:44,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:44,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202400985] [2024-11-07 03:38:44,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202400985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:44,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:44,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:38:44,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588735102] [2024-11-07 03:38:44,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:44,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:38:44,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:44,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:38:44,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:44,692 INFO L87 Difference]: Start difference. First operand 792 states and 1141 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 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 03:38:44,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:44,749 INFO L93 Difference]: Finished difference Result 1553 states and 2240 transitions. [2024-11-07 03:38:44,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:38:44,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-07 03:38:44,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:44,754 INFO L225 Difference]: With dead ends: 1553 [2024-11-07 03:38:44,754 INFO L226 Difference]: Without dead ends: 812 [2024-11-07 03:38:44,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 03:38:44,756 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 5 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2575 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:44,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2575 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:38:44,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-11-07 03:38:44,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 812. [2024-11-07 03:38:44,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 811 states have (on average 1.4389642416769421) internal successors, (1167), 811 states have internal predecessors, (1167), 0 states have call successors, (0), 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 03:38:44,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1167 transitions. [2024-11-07 03:38:44,769 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1167 transitions. Word has length 173 [2024-11-07 03:38:44,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:44,769 INFO L471 AbstractCegarLoop]: Abstraction has 812 states and 1167 transitions. [2024-11-07 03:38:44,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 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 03:38:44,769 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1167 transitions. [2024-11-07 03:38:44,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 03:38:44,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:44,771 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:44,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 03:38:44,771 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:44,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:44,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1612586140, now seen corresponding path program 1 times [2024-11-07 03:38:44,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:44,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150279390] [2024-11-07 03:38:44,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:44,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:45,024 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:45,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:45,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150279390] [2024-11-07 03:38:45,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150279390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:45,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:45,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:38:45,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313774739] [2024-11-07 03:38:45,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:45,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:38:45,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:45,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:38:45,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:38:45,025 INFO L87 Difference]: Start difference. First operand 812 states and 1167 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 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 03:38:45,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:45,074 INFO L93 Difference]: Finished difference Result 1305 states and 1882 transitions. [2024-11-07 03:38:45,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:38:45,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-07 03:38:45,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:45,077 INFO L225 Difference]: With dead ends: 1305 [2024-11-07 03:38:45,077 INFO L226 Difference]: Without dead ends: 808 [2024-11-07 03:38:45,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:45,079 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 1053 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 1275 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 03:38:45,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 1275 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:38:45,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-07 03:38:45,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 802. [2024-11-07 03:38:45,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 801 states have (on average 1.4369538077403246) internal successors, (1151), 801 states have internal predecessors, (1151), 0 states have call successors, (0), 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 03:38:45,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1151 transitions. [2024-11-07 03:38:45,090 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1151 transitions. Word has length 173 [2024-11-07 03:38:45,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:45,090 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1151 transitions. [2024-11-07 03:38:45,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 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 03:38:45,090 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1151 transitions. [2024-11-07 03:38:45,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 03:38:45,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:45,092 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:45,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 03:38:45,092 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:45,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:45,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1376137115, now seen corresponding path program 1 times [2024-11-07 03:38:45,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:45,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038955755] [2024-11-07 03:38:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:45,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:45,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:45,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:45,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038955755] [2024-11-07 03:38:45,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038955755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:45,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:45,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:38:45,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243435397] [2024-11-07 03:38:45,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:45,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:38:45,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:45,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:38:45,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:38:45,338 INFO L87 Difference]: Start difference. First operand 802 states and 1151 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 0 states have call successors, (0), 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 03:38:45,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:45,382 INFO L93 Difference]: Finished difference Result 1559 states and 2240 transitions. [2024-11-07 03:38:45,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:38:45,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2024-11-07 03:38:45,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:45,384 INFO L225 Difference]: With dead ends: 1559 [2024-11-07 03:38:45,384 INFO L226 Difference]: Without dead ends: 813 [2024-11-07 03:38:45,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:45,386 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 1071 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:45,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 1276 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:38:45,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-07 03:38:45,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 799. [2024-11-07 03:38:45,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 798 states have (on average 1.4348370927318295) internal successors, (1145), 798 states have internal predecessors, (1145), 0 states have call successors, (0), 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 03:38:45,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1145 transitions. [2024-11-07 03:38:45,398 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1145 transitions. Word has length 174 [2024-11-07 03:38:45,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:45,398 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1145 transitions. [2024-11-07 03:38:45,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 0 states have call successors, (0), 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 03:38:45,398 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1145 transitions. [2024-11-07 03:38:45,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 03:38:45,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:45,400 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:38:45,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 03:38:45,400 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:45,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:45,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1027042594, now seen corresponding path program 1 times [2024-11-07 03:38:45,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:45,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531244817] [2024-11-07 03:38:45,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:45,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:45,636 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:45,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:45,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531244817] [2024-11-07 03:38:45,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531244817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:45,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:45,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:38:45,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955787071] [2024-11-07 03:38:45,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:45,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:38:45,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:45,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:38:45,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:38:45,638 INFO L87 Difference]: Start difference. First operand 799 states and 1145 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 0 states have call successors, (0), 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 03:38:45,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:45,690 INFO L93 Difference]: Finished difference Result 1320 states and 1900 transitions. [2024-11-07 03:38:45,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:38:45,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2024-11-07 03:38:45,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:45,693 INFO L225 Difference]: With dead ends: 1320 [2024-11-07 03:38:45,693 INFO L226 Difference]: Without dead ends: 573 [2024-11-07 03:38:45,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:45,694 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 1097 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:45,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 1269 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:38:45,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-11-07 03:38:45,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2024-11-07 03:38:45,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 572 states have (on average 1.4423076923076923) internal successors, (825), 572 states have internal predecessors, (825), 0 states have call successors, (0), 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 03:38:45,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 825 transitions. [2024-11-07 03:38:45,708 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 825 transitions. Word has length 174 [2024-11-07 03:38:45,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:45,708 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 825 transitions. [2024-11-07 03:38:45,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 0 states have call successors, (0), 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 03:38:45,709 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 825 transitions. [2024-11-07 03:38:45,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-07 03:38:45,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:45,711 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:38:45,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-07 03:38:45,711 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:45,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:45,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1290264212, now seen corresponding path program 1 times [2024-11-07 03:38:45,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:45,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127141412] [2024-11-07 03:38:45,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:45,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:47,095 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:47,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:47,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127141412] [2024-11-07 03:38:47,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127141412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:47,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:47,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:38:47,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95363270] [2024-11-07 03:38:47,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:47,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:38:47,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:47,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:38:47,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:47,096 INFO L87 Difference]: Start difference. First operand 573 states and 825 transitions. Second operand has 7 states, 7 states have (on average 43.0) internal successors, (301), 7 states have internal predecessors, (301), 0 states have call successors, (0), 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 03:38:47,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:47,402 INFO L93 Difference]: Finished difference Result 1763 states and 2581 transitions. [2024-11-07 03:38:47,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 03:38:47,402 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 43.0) internal successors, (301), 7 states have internal predecessors, (301), 0 states have call successors, (0), 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 301 [2024-11-07 03:38:47,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:47,406 INFO L225 Difference]: With dead ends: 1763 [2024-11-07 03:38:47,406 INFO L226 Difference]: Without dead ends: 1493 [2024-11-07 03:38:47,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:38:47,408 INFO L432 NwaCegarLoop]: 1008 mSDtfsCounter, 1239 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 4098 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:47,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1239 Valid, 4098 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:38:47,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2024-11-07 03:38:47,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1039. [2024-11-07 03:38:47,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 1038 states have (on average 1.4479768786127167) internal successors, (1503), 1038 states have internal predecessors, (1503), 0 states have call successors, (0), 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 03:38:47,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1503 transitions. [2024-11-07 03:38:47,425 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1503 transitions. Word has length 301 [2024-11-07 03:38:47,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:47,425 INFO L471 AbstractCegarLoop]: Abstraction has 1039 states and 1503 transitions. [2024-11-07 03:38:47,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 43.0) internal successors, (301), 7 states have internal predecessors, (301), 0 states have call successors, (0), 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 03:38:47,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1503 transitions. [2024-11-07 03:38:47,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-11-07 03:38:47,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:47,428 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:38:47,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-07 03:38:47,429 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:47,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:47,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1152322211, now seen corresponding path program 1 times [2024-11-07 03:38:47,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:47,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198962447] [2024-11-07 03:38:47,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:47,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:49,403 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:49,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:49,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198962447] [2024-11-07 03:38:49,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198962447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:49,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:49,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 03:38:49,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234772188] [2024-11-07 03:38:49,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:49,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 03:38:49,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:49,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 03:38:49,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:38:49,404 INFO L87 Difference]: Start difference. First operand 1039 states and 1503 transitions. Second operand has 9 states, 9 states have (on average 33.55555555555556) internal successors, (302), 9 states have internal predecessors, (302), 0 states have call successors, (0), 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 03:38:49,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:49,721 INFO L93 Difference]: Finished difference Result 2025 states and 2964 transitions. [2024-11-07 03:38:49,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 03:38:49,721 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 33.55555555555556) internal successors, (302), 9 states have internal predecessors, (302), 0 states have call successors, (0), 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 302 [2024-11-07 03:38:49,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:49,726 INFO L225 Difference]: With dead ends: 2025 [2024-11-07 03:38:49,727 INFO L226 Difference]: Without dead ends: 1522 [2024-11-07 03:38:49,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-07 03:38:49,730 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 1488 mSDsluCounter, 3930 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 4642 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:49,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 4642 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 03:38:49,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2024-11-07 03:38:49,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1091. [2024-11-07 03:38:49,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 1090 states have (on average 1.444954128440367) internal successors, (1575), 1090 states have internal predecessors, (1575), 0 states have call successors, (0), 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 03:38:49,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1575 transitions. [2024-11-07 03:38:49,771 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1575 transitions. Word has length 302 [2024-11-07 03:38:49,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:49,771 INFO L471 AbstractCegarLoop]: Abstraction has 1091 states and 1575 transitions. [2024-11-07 03:38:49,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.55555555555556) internal successors, (302), 9 states have internal predecessors, (302), 0 states have call successors, (0), 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 03:38:49,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1575 transitions. [2024-11-07 03:38:49,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-11-07 03:38:49,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:49,774 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:38:49,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-07 03:38:49,774 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:49,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:49,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1725789107, now seen corresponding path program 1 times [2024-11-07 03:38:49,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:49,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745648545] [2024-11-07 03:38:49,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:49,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:51,105 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-07 03:38:51,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:51,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745648545] [2024-11-07 03:38:51,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745648545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:51,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:51,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:38:51,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372195096] [2024-11-07 03:38:51,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:51,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:38:51,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:51,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:38:51,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:38:51,107 INFO L87 Difference]: Start difference. First operand 1091 states and 1575 transitions. Second operand has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 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 03:38:51,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:51,158 INFO L93 Difference]: Finished difference Result 1882 states and 2727 transitions. [2024-11-07 03:38:51,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:38:51,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 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 302 [2024-11-07 03:38:51,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:51,161 INFO L225 Difference]: With dead ends: 1882 [2024-11-07 03:38:51,161 INFO L226 Difference]: Without dead ends: 848 [2024-11-07 03:38:51,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:38:51,163 INFO L432 NwaCegarLoop]: 428 mSDtfsCounter, 997 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:51,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 1278 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:38:51,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-07 03:38:51,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2024-11-07 03:38:51,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 847 states have (on average 1.448642266824085) internal successors, (1227), 847 states have internal predecessors, (1227), 0 states have call successors, (0), 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 03:38:51,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1227 transitions. [2024-11-07 03:38:51,175 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1227 transitions. Word has length 302 [2024-11-07 03:38:51,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:51,175 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1227 transitions. [2024-11-07 03:38:51,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 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 03:38:51,175 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1227 transitions. [2024-11-07 03:38:51,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-11-07 03:38:51,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:51,177 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:38:51,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-07 03:38:51,177 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:51,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:51,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2020947422, now seen corresponding path program 1 times [2024-11-07 03:38:51,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:51,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458254508] [2024-11-07 03:38:51,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:51,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:52,987 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:52,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:52,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458254508] [2024-11-07 03:38:52,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458254508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:38:52,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:38:52,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:38:52,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458266118] [2024-11-07 03:38:52,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:52,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:38:52,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:52,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:38:52,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:38:52,989 INFO L87 Difference]: Start difference. First operand 848 states and 1227 transitions. Second operand has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 0 states have call successors, (0), 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 03:38:53,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:53,229 INFO L93 Difference]: Finished difference Result 1851 states and 2714 transitions. [2024-11-07 03:38:53,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 03:38:53,234 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 0 states have call successors, (0), 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 303 [2024-11-07 03:38:53,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:53,237 INFO L225 Difference]: With dead ends: 1851 [2024-11-07 03:38:53,237 INFO L226 Difference]: Without dead ends: 1303 [2024-11-07 03:38:53,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:38:53,239 INFO L432 NwaCegarLoop]: 691 mSDtfsCounter, 1854 mSDsluCounter, 2139 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:53,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 2830 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:38:53,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2024-11-07 03:38:53,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 849. [2024-11-07 03:38:53,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 848 states have (on average 1.446933962264151) internal successors, (1227), 848 states have internal predecessors, (1227), 0 states have call successors, (0), 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 03:38:53,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1227 transitions. [2024-11-07 03:38:53,251 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1227 transitions. Word has length 303 [2024-11-07 03:38:53,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:53,251 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 1227 transitions. [2024-11-07 03:38:53,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 0 states have call successors, (0), 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 03:38:53,252 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1227 transitions. [2024-11-07 03:38:53,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-07 03:38:53,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:53,254 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:38:53,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-07 03:38:53,254 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:53,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:53,255 INFO L85 PathProgramCache]: Analyzing trace with hash 180767620, now seen corresponding path program 1 times [2024-11-07 03:38:53,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:53,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391638961] [2024-11-07 03:38:53,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:53,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:55,553 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 140 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:55,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:55,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391638961] [2024-11-07 03:38:55,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391638961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:38:55,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431122837] [2024-11-07 03:38:55,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:55,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:38:55,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:38:55,556 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:38:55,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 03:38:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:56,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 2006 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-07 03:38:56,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:38:56,752 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 120 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:56,752 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:38:56,978 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-07 03:38:56,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431122837] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 03:38:56,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 03:38:56,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 11] total 24 [2024-11-07 03:38:56,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235229274] [2024-11-07 03:38:56,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:38:56,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 03:38:56,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:38:56,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 03:38:56,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2024-11-07 03:38:56,980 INFO L87 Difference]: Start difference. First operand 849 states and 1227 transitions. Second operand has 8 states, 8 states have (on average 37.25) internal successors, (298), 8 states have internal predecessors, (298), 0 states have call successors, (0), 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 03:38:57,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:38:57,171 INFO L93 Difference]: Finished difference Result 2217 states and 3260 transitions. [2024-11-07 03:38:57,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 03:38:57,172 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 37.25) internal successors, (298), 8 states have internal predecessors, (298), 0 states have call successors, (0), 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 304 [2024-11-07 03:38:57,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:38:57,179 INFO L225 Difference]: With dead ends: 2217 [2024-11-07 03:38:57,179 INFO L226 Difference]: Without dead ends: 1668 [2024-11-07 03:38:57,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 597 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2024-11-07 03:38:57,180 INFO L432 NwaCegarLoop]: 736 mSDtfsCounter, 951 mSDsluCounter, 3300 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 4036 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:38:57,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 4036 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:38:57,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2024-11-07 03:38:57,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 953. [2024-11-07 03:38:57,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 952 states have (on average 1.449579831932773) internal successors, (1380), 952 states have internal predecessors, (1380), 0 states have call successors, (0), 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 03:38:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1380 transitions. [2024-11-07 03:38:57,192 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1380 transitions. Word has length 304 [2024-11-07 03:38:57,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:38:57,192 INFO L471 AbstractCegarLoop]: Abstraction has 953 states and 1380 transitions. [2024-11-07 03:38:57,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 37.25) internal successors, (298), 8 states have internal predecessors, (298), 0 states have call successors, (0), 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 03:38:57,194 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1380 transitions. [2024-11-07 03:38:57,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-11-07 03:38:57,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:38:57,196 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:38:57,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 03:38:57,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:38:57,396 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:38:57,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:38:57,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1942346116, now seen corresponding path program 1 times [2024-11-07 03:38:57,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:38:57,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033262395] [2024-11-07 03:38:57,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:57,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:38:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:38:59,495 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 140 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:38:59,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:38:59,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033262395] [2024-11-07 03:38:59,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033262395] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:38:59,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680346291] [2024-11-07 03:38:59,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:38:59,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:38:59,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:38:59,497 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:38:59,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 03:39:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:00,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 2009 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-07 03:39:00,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:39:01,035 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 29 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:01,035 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:39:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 29 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:02,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680346291] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 03:39:02,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 03:39:02,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 11] total 29 [2024-11-07 03:39:02,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151574408] [2024-11-07 03:39:02,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 03:39:02,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-07 03:39:02,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:39:02,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-07 03:39:02,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2024-11-07 03:39:02,110 INFO L87 Difference]: Start difference. First operand 953 states and 1380 transitions. Second operand has 29 states, 29 states have (on average 29.689655172413794) internal successors, (861), 29 states have internal predecessors, (861), 0 states have call successors, (0), 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 03:39:05,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:39:05,080 INFO L93 Difference]: Finished difference Result 4623 states and 6817 transitions. [2024-11-07 03:39:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-11-07 03:39:05,080 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 29.689655172413794) internal successors, (861), 29 states have internal predecessors, (861), 0 states have call successors, (0), 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 305 [2024-11-07 03:39:05,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:39:05,089 INFO L225 Difference]: With dead ends: 4623 [2024-11-07 03:39:05,089 INFO L226 Difference]: Without dead ends: 3970 [2024-11-07 03:39:05,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 592 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3091 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1694, Invalid=8812, Unknown=0, NotChecked=0, Total=10506 [2024-11-07 03:39:05,093 INFO L432 NwaCegarLoop]: 946 mSDtfsCounter, 11338 mSDsluCounter, 15371 mSDsCounter, 0 mSdLazyCounter, 2366 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11338 SdHoareTripleChecker+Valid, 16317 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:39:05,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11338 Valid, 16317 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2366 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 03:39:05,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3970 states. [2024-11-07 03:39:05,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3970 to 1337. [2024-11-07 03:39:05,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1336 states have (on average 1.4491017964071857) internal successors, (1936), 1336 states have internal predecessors, (1936), 0 states have call successors, (0), 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 03:39:05,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1936 transitions. [2024-11-07 03:39:05,114 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1936 transitions. Word has length 305 [2024-11-07 03:39:05,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:39:05,114 INFO L471 AbstractCegarLoop]: Abstraction has 1337 states and 1936 transitions. [2024-11-07 03:39:05,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 29.689655172413794) internal successors, (861), 29 states have internal predecessors, (861), 0 states have call successors, (0), 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 03:39:05,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1936 transitions. [2024-11-07 03:39:05,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-11-07 03:39:05,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:39:05,117 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:39:05,136 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 03:39:05,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-07 03:39:05,318 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:39:05,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:39:05,318 INFO L85 PathProgramCache]: Analyzing trace with hash -870804637, now seen corresponding path program 1 times [2024-11-07 03:39:05,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:39:05,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057589719] [2024-11-07 03:39:05,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:39:05,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:39:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 125 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:07,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:39:07,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057589719] [2024-11-07 03:39:07,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057589719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:39:07,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108545317] [2024-11-07 03:39:07,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:39:07,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:39:07,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:39:07,097 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:39:07,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 03:39:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:07,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 2012 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-07 03:39:07,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:39:08,308 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 71 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:08,308 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:39:09,375 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 71 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:09,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108545317] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 03:39:09,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 03:39:09,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 10] total 22 [2024-11-07 03:39:09,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948385381] [2024-11-07 03:39:09,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 03:39:09,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 03:39:09,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:39:09,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 03:39:09,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:39:09,378 INFO L87 Difference]: Start difference. First operand 1337 states and 1936 transitions. Second operand has 22 states, 22 states have (on average 35.45454545454545) internal successors, (780), 22 states have internal predecessors, (780), 0 states have call successors, (0), 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 03:39:10,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:39:10,258 INFO L93 Difference]: Finished difference Result 3111 states and 4555 transitions. [2024-11-07 03:39:10,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-07 03:39:10,258 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 35.45454545454545) internal successors, (780), 22 states have internal predecessors, (780), 0 states have call successors, (0), 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 306 [2024-11-07 03:39:10,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:39:10,263 INFO L225 Difference]: With dead ends: 3111 [2024-11-07 03:39:10,263 INFO L226 Difference]: Without dead ends: 2080 [2024-11-07 03:39:10,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 599 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=485, Invalid=1771, Unknown=0, NotChecked=0, Total=2256 [2024-11-07 03:39:10,265 INFO L432 NwaCegarLoop]: 622 mSDtfsCounter, 7160 mSDsluCounter, 4748 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7160 SdHoareTripleChecker+Valid, 5370 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 03:39:10,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7160 Valid, 5370 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 03:39:10,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2024-11-07 03:39:10,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 1750. [2024-11-07 03:39:10,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1750 states, 1749 states have (on average 1.448256146369354) internal successors, (2533), 1749 states have internal predecessors, (2533), 0 states have call successors, (0), 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 03:39:10,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1750 states to 1750 states and 2533 transitions. [2024-11-07 03:39:10,283 INFO L78 Accepts]: Start accepts. Automaton has 1750 states and 2533 transitions. Word has length 306 [2024-11-07 03:39:10,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:39:10,283 INFO L471 AbstractCegarLoop]: Abstraction has 1750 states and 2533 transitions. [2024-11-07 03:39:10,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 35.45454545454545) internal successors, (780), 22 states have internal predecessors, (780), 0 states have call successors, (0), 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 03:39:10,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1750 states and 2533 transitions. [2024-11-07 03:39:10,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-11-07 03:39:10,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:39:10,286 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:39:10,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 03:39:10,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:39:10,486 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:39:10,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:39:10,487 INFO L85 PathProgramCache]: Analyzing trace with hash -835409555, now seen corresponding path program 1 times [2024-11-07 03:39:10,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:39:10,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357288550] [2024-11-07 03:39:10,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:39:10,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:39:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:12,256 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 13 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:12,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:39:12,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357288550] [2024-11-07 03:39:12,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357288550] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:39:12,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855581851] [2024-11-07 03:39:12,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:39:12,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:39:12,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:39:12,258 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:39:12,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 03:39:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:12,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 2016 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-07 03:39:12,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:39:14,100 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 73 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:14,100 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:39:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-07 03:39:14,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855581851] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 03:39:14,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 03:39:14,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 16] total 29 [2024-11-07 03:39:14,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468383603] [2024-11-07 03:39:14,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:39:14,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 03:39:14,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:39:14,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 03:39:14,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=699, Unknown=0, NotChecked=0, Total=812 [2024-11-07 03:39:14,406 INFO L87 Difference]: Start difference. First operand 1750 states and 2533 transitions. Second operand has 9 states, 9 states have (on average 33.55555555555556) internal successors, (302), 9 states have internal predecessors, (302), 0 states have call successors, (0), 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 03:39:14,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:39:14,625 INFO L93 Difference]: Finished difference Result 4687 states and 6857 transitions. [2024-11-07 03:39:14,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 03:39:14,625 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 33.55555555555556) internal successors, (302), 9 states have internal predecessors, (302), 0 states have call successors, (0), 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 308 [2024-11-07 03:39:14,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:39:14,630 INFO L225 Difference]: With dead ends: 4687 [2024-11-07 03:39:14,630 INFO L226 Difference]: Without dead ends: 3027 [2024-11-07 03:39:14,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 597 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2024-11-07 03:39:14,633 INFO L432 NwaCegarLoop]: 807 mSDtfsCounter, 608 mSDsluCounter, 3985 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 4792 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:39:14,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 4792 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:39:14,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3027 states. [2024-11-07 03:39:14,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3027 to 1794. [2024-11-07 03:39:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1793 states have (on average 1.448968209704406) internal successors, (2598), 1793 states have internal predecessors, (2598), 0 states have call successors, (0), 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 03:39:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2598 transitions. [2024-11-07 03:39:14,660 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2598 transitions. Word has length 308 [2024-11-07 03:39:14,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:39:14,660 INFO L471 AbstractCegarLoop]: Abstraction has 1794 states and 2598 transitions. [2024-11-07 03:39:14,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.55555555555556) internal successors, (302), 9 states have internal predecessors, (302), 0 states have call successors, (0), 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 03:39:14,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2598 transitions. [2024-11-07 03:39:14,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-07 03:39:14,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:39:14,663 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:39:14,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 03:39:14,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-07 03:39:14,863 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:39:14,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:39:14,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1123498513, now seen corresponding path program 1 times [2024-11-07 03:39:14,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:39:14,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228860104] [2024-11-07 03:39:14,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:39:14,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:39:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:16,861 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 13 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:16,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:39:16,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228860104] [2024-11-07 03:39:16,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228860104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:39:16,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19307871] [2024-11-07 03:39:16,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:39:16,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:39:16,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:39:16,864 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:39:16,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 03:39:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:17,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 2019 conjuncts, 84 conjuncts are in the unsatisfiable core [2024-11-07 03:39:17,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:39:18,787 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 27 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:18,787 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:39:20,749 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 21 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:20,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19307871] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 03:39:20,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 03:39:20,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13, 17] total 34 [2024-11-07 03:39:20,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664898955] [2024-11-07 03:39:20,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 03:39:20,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-07 03:39:20,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:39:20,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-07 03:39:20,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=992, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 03:39:20,751 INFO L87 Difference]: Start difference. First operand 1794 states and 2598 transitions. Second operand has 34 states, 34 states have (on average 26.823529411764707) internal successors, (912), 34 states have internal predecessors, (912), 0 states have call successors, (0), 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 03:39:22,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:39:22,624 INFO L93 Difference]: Finished difference Result 6542 states and 9536 transitions. [2024-11-07 03:39:22,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-07 03:39:22,624 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 26.823529411764707) internal successors, (912), 34 states have internal predecessors, (912), 0 states have call successors, (0), 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 309 [2024-11-07 03:39:22,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:39:22,635 INFO L225 Difference]: With dead ends: 6542 [2024-11-07 03:39:22,635 INFO L226 Difference]: Without dead ends: 5054 [2024-11-07 03:39:22,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 593 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1264 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=596, Invalid=5104, Unknown=0, NotChecked=0, Total=5700 [2024-11-07 03:39:22,639 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 7326 mSDsluCounter, 12972 mSDsCounter, 0 mSdLazyCounter, 3121 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7326 SdHoareTripleChecker+Valid, 13655 SdHoareTripleChecker+Invalid, 3131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:39:22,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7326 Valid, 13655 Invalid, 3131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 3121 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 03:39:22,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5054 states. [2024-11-07 03:39:22,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5054 to 5030. [2024-11-07 03:39:22,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5029 states have (on average 1.4563531517200239) internal successors, (7324), 5029 states have internal predecessors, (7324), 0 states have call successors, (0), 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 03:39:22,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 7324 transitions. [2024-11-07 03:39:22,692 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 7324 transitions. Word has length 309 [2024-11-07 03:39:22,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:39:22,692 INFO L471 AbstractCegarLoop]: Abstraction has 5030 states and 7324 transitions. [2024-11-07 03:39:22,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 26.823529411764707) internal successors, (912), 34 states have internal predecessors, (912), 0 states have call successors, (0), 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 03:39:22,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 7324 transitions. [2024-11-07 03:39:22,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-07 03:39:22,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:39:22,698 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:39:22,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-07 03:39:22,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:39:22,899 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:39:22,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:39:22,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1710371972, now seen corresponding path program 1 times [2024-11-07 03:39:22,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:39:22,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494119760] [2024-11-07 03:39:22,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:39:22,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:39:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:25,021 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 114 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:25,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:39:25,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494119760] [2024-11-07 03:39:25,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494119760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:39:25,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998278493] [2024-11-07 03:39:25,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:39:25,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:39:25,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:39:25,024 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:39:25,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-07 03:39:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:25,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 2019 conjuncts, 84 conjuncts are in the unsatisfiable core [2024-11-07 03:39:25,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:39:26,817 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 120 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:26,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:39:27,110 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 03:39:27,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998278493] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 03:39:27,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 03:39:27,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8, 18] total 31 [2024-11-07 03:39:27,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885303025] [2024-11-07 03:39:27,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:39:27,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 03:39:27,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:39:27,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 03:39:27,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2024-11-07 03:39:27,112 INFO L87 Difference]: Start difference. First operand 5030 states and 7324 transitions. Second operand has 10 states, 10 states have (on average 29.6) internal successors, (296), 10 states have internal predecessors, (296), 0 states have call successors, (0), 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 03:39:27,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:39:27,362 INFO L93 Difference]: Finished difference Result 16901 states and 24833 transitions. [2024-11-07 03:39:27,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 03:39:27,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 29.6) internal successors, (296), 10 states have internal predecessors, (296), 0 states have call successors, (0), 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 309 [2024-11-07 03:39:27,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:39:27,378 INFO L225 Difference]: With dead ends: 16901 [2024-11-07 03:39:27,378 INFO L226 Difference]: Without dead ends: 11108 [2024-11-07 03:39:27,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 598 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=1083, Unknown=0, NotChecked=0, Total=1260 [2024-11-07 03:39:27,386 INFO L432 NwaCegarLoop]: 678 mSDtfsCounter, 1147 mSDsluCounter, 2569 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 3247 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:39:27,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 3247 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:39:27,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11108 states. [2024-11-07 03:39:27,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11108 to 5088. [2024-11-07 03:39:27,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5088 states, 5087 states have (on average 1.453508944367997) internal successors, (7394), 5087 states have internal predecessors, (7394), 0 states have call successors, (0), 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 03:39:27,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5088 states to 5088 states and 7394 transitions. [2024-11-07 03:39:27,483 INFO L78 Accepts]: Start accepts. Automaton has 5088 states and 7394 transitions. Word has length 309 [2024-11-07 03:39:27,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:39:27,483 INFO L471 AbstractCegarLoop]: Abstraction has 5088 states and 7394 transitions. [2024-11-07 03:39:27,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 29.6) internal successors, (296), 10 states have internal predecessors, (296), 0 states have call successors, (0), 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 03:39:27,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5088 states and 7394 transitions. [2024-11-07 03:39:27,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-07 03:39:27,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:39:27,489 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:39:27,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 03:39:27,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:39:27,690 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:39:27,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:39:27,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1292251812, now seen corresponding path program 1 times [2024-11-07 03:39:27,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:39:27,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804863218] [2024-11-07 03:39:27,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:39:27,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:39:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:29,837 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 114 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:29,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:39:29,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804863218] [2024-11-07 03:39:29,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804863218] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:39:29,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086378730] [2024-11-07 03:39:29,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:39:29,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:39:29,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:39:29,840 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:39:29,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 03:39:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:30,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 2019 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-07 03:39:30,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:39:31,696 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 73 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:31,696 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:39:31,922 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-07 03:39:31,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086378730] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 03:39:31,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 03:39:31,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 14] total 25 [2024-11-07 03:39:31,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794099369] [2024-11-07 03:39:31,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:39:31,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:39:31,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:39:31,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:39:31,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-11-07 03:39:31,924 INFO L87 Difference]: Start difference. First operand 5088 states and 7394 transitions. Second operand has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 0 states have call successors, (0), 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 03:39:32,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:39:32,043 INFO L93 Difference]: Finished difference Result 8848 states and 12916 transitions. [2024-11-07 03:39:32,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 03:39:32,046 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 0 states have call successors, (0), 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 309 [2024-11-07 03:39:32,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:39:32,054 INFO L225 Difference]: With dead ends: 8848 [2024-11-07 03:39:32,054 INFO L226 Difference]: Without dead ends: 4968 [2024-11-07 03:39:32,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 604 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=605, Unknown=0, NotChecked=0, Total=702 [2024-11-07 03:39:32,059 INFO L432 NwaCegarLoop]: 768 mSDtfsCounter, 374 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 3022 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:39:32,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 3022 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:39:32,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4968 states. [2024-11-07 03:39:32,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4968 to 3944. [2024-11-07 03:39:32,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3944 states, 3943 states have (on average 1.4450925691098149) internal successors, (5698), 3943 states have internal predecessors, (5698), 0 states have call successors, (0), 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 03:39:32,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 5698 transitions. [2024-11-07 03:39:32,104 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 5698 transitions. Word has length 309 [2024-11-07 03:39:32,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:39:32,105 INFO L471 AbstractCegarLoop]: Abstraction has 3944 states and 5698 transitions. [2024-11-07 03:39:32,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 0 states have call successors, (0), 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 03:39:32,105 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 5698 transitions. [2024-11-07 03:39:32,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-11-07 03:39:32,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:39:32,109 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:39:32,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-07 03:39:32,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:39:32,310 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:39:32,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:39:32,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1468016016, now seen corresponding path program 1 times [2024-11-07 03:39:32,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:39:32,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610269572] [2024-11-07 03:39:32,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:39:32,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:39:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:35,191 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 101 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:35,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:39:35,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610269572] [2024-11-07 03:39:35,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610269572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:39:35,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400451400] [2024-11-07 03:39:35,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:39:35,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:39:35,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:39:35,193 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:39:35,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-07 03:39:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:35,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 2020 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-07 03:39:35,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:39:36,706 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 52 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:36,706 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:39:36,795 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-07 03:39:36,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400451400] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 03:39:36,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 03:39:36,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 10] total 21 [2024-11-07 03:39:36,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442988879] [2024-11-07 03:39:36,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:39:36,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:39:36,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:39:36,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:39:36,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:39:36,796 INFO L87 Difference]: Start difference. First operand 3944 states and 5698 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 03:39:36,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:39:36,848 INFO L93 Difference]: Finished difference Result 6716 states and 9748 transitions. [2024-11-07 03:39:36,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:39:36,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 310 [2024-11-07 03:39:36,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:39:36,853 INFO L225 Difference]: With dead ends: 6716 [2024-11-07 03:39:36,853 INFO L226 Difference]: Without dead ends: 4048 [2024-11-07 03:39:36,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:39:36,856 INFO L432 NwaCegarLoop]: 466 mSDtfsCounter, 50 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 1339 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 03:39:36,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 1339 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:39:36,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4048 states. [2024-11-07 03:39:36,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4048 to 4048. [2024-11-07 03:39:36,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 4047 states have (on average 1.4435384235235977) internal successors, (5842), 4047 states have internal predecessors, (5842), 0 states have call successors, (0), 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 03:39:36,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 5842 transitions. [2024-11-07 03:39:36,897 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 5842 transitions. Word has length 310 [2024-11-07 03:39:36,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:39:36,897 INFO L471 AbstractCegarLoop]: Abstraction has 4048 states and 5842 transitions. [2024-11-07 03:39:36,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 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 03:39:36,897 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 5842 transitions. [2024-11-07 03:39:36,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-11-07 03:39:36,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:39:36,901 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:39:36,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-07 03:39:37,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-07 03:39:37,101 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:39:37,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:39:37,102 INFO L85 PathProgramCache]: Analyzing trace with hash 57945410, now seen corresponding path program 1 times [2024-11-07 03:39:37,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:39:37,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982489162] [2024-11-07 03:39:37,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:39:37,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:39:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:39,258 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 66 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:39:39,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:39:39,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982489162] [2024-11-07 03:39:39,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982489162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:39:39,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848605061] [2024-11-07 03:39:39,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:39:39,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:39:39,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:39:39,261 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:39:39,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-07 03:39:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:39:40,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 2023 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-07 03:39:40,256 INFO L278 TraceCheckSpWp]: Computing forward predicates...