./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.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.client_server.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', '9ed0841be1ae1dee8e84f0ca737866704342db1241d2484eefbe911736856543'] 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.client_server.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 9ed0841be1ae1dee8e84f0ca737866704342db1241d2484eefbe911736856543 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 02:42:23,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 02:42:23,820 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 02:42:23,826 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 02:42:23,826 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 02:42:23,858 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 02:42:23,859 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 02:42:23,859 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 02:42:23,860 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 02:42:23,860 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 02:42:23,860 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 02:42:23,860 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 02:42:23,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 02:42:23,861 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 02:42:23,861 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 02:42:23,861 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 02:42:23,861 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 02:42:23,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 02:42:23,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 02:42:23,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 02:42:23,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 02:42:23,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 02:42:23,862 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 02:42:23,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 02:42:23,862 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 02:42:23,862 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 02:42:23,862 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 02:42:23,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 02:42:23,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 02:42:23,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:42:23,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 02:42:23,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 02:42:23,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 02:42:23,863 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 02:42:23,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 02:42:23,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 02:42:23,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 02:42:23,863 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 02:42:23,863 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 02:42:23,863 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 -> 9ed0841be1ae1dee8e84f0ca737866704342db1241d2484eefbe911736856543 [2024-11-07 02:42:24,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 02:42:24,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 02:42:24,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 02:42:24,186 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 02:42:24,186 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 02:42:24,188 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c [2024-11-07 02:42:25,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 02:42:25,718 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 02:42:25,718 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c [2024-11-07 02:42:25,727 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/21f027907/98dcdb2927594c5980e6a8869712ef4b/FLAGf47b2be3c [2024-11-07 02:42:25,740 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/21f027907/98dcdb2927594c5980e6a8869712ef4b [2024-11-07 02:42:25,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 02:42:25,743 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 02:42:25,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 02:42:25,745 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 02:42:25,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 02:42:25,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:42:25" (1/1) ... [2024-11-07 02:42:25,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66e059c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:25, skipping insertion in model container [2024-11-07 02:42:25,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:42:25" (1/1) ... [2024-11-07 02:42:25,781 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 02:42:25,936 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.client_server.c[1253,1266] [2024-11-07 02:42:26,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:42:26,127 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 02:42:26,136 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.client_server.c[1253,1266] [2024-11-07 02:42:26,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:42:26,258 INFO L204 MainTranslator]: Completed translation [2024-11-07 02:42:26,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:26 WrapperNode [2024-11-07 02:42:26,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 02:42:26,261 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 02:42:26,262 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 02:42:26,262 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 02:42:26,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:26" (1/1) ... [2024-11-07 02:42:26,301 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:26" (1/1) ... [2024-11-07 02:42:26,417 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 861 [2024-11-07 02:42:26,418 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 02:42:26,419 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 02:42:26,419 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 02:42:26,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 02:42:26,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:26" (1/1) ... [2024-11-07 02:42:26,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:26" (1/1) ... [2024-11-07 02:42:26,452 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:26" (1/1) ... [2024-11-07 02:42:26,535 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 02:42:26,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:26" (1/1) ... [2024-11-07 02:42:26,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:26" (1/1) ... [2024-11-07 02:42:26,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:26" (1/1) ... [2024-11-07 02:42:26,582 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:26" (1/1) ... [2024-11-07 02:42:26,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:26" (1/1) ... [2024-11-07 02:42:26,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:26" (1/1) ... [2024-11-07 02:42:26,630 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 02:42:26,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 02:42:26,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 02:42:26,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 02:42:26,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:26" (1/1) ... [2024-11-07 02:42:26,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:42:26,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:42:26,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 02:42:26,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 02:42:26,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 02:42:26,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 02:42:26,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 02:42:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 02:42:26,897 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 02:42:26,899 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 02:42:28,094 INFO L? ?]: Removed 563 outVars from TransFormulas that were not future-live. [2024-11-07 02:42:28,094 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 02:42:28,108 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 02:42:28,108 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 02:42:28,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:42:28 BoogieIcfgContainer [2024-11-07 02:42:28,109 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 02:42:28,111 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 02:42:28,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 02:42:28,116 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 02:42:28,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:42:25" (1/3) ... [2024-11-07 02:42:28,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea95c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:42:28, skipping insertion in model container [2024-11-07 02:42:28,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:26" (2/3) ... [2024-11-07 02:42:28,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea95c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:42:28, skipping insertion in model container [2024-11-07 02:42:28,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:42:28" (3/3) ... [2024-11-07 02:42:28,118 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.client_server.c [2024-11-07 02:42:28,132 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 02:42:28,132 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 02:42:28,199 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 02:42:28,213 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;@6eb63fc9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 02:42:28,213 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 02:42:28,219 INFO L276 IsEmpty]: Start isEmpty. Operand has 210 states, 208 states have (on average 1.4951923076923077) internal successors, (311), 209 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:28,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-07 02:42:28,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:28,229 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:28,229 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:28,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:28,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1877739446, now seen corresponding path program 1 times [2024-11-07 02:42:28,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:28,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974235925] [2024-11-07 02:42:28,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:28,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:29,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:29,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:29,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974235925] [2024-11-07 02:42:29,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974235925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:29,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:29,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:42:29,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564816903] [2024-11-07 02:42:29,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:29,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:42:29,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:29,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:42:29,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:42:29,363 INFO L87 Difference]: Start difference. First operand has 210 states, 208 states have (on average 1.4951923076923077) internal successors, (311), 209 states have internal predecessors, (311), 0 states have call successors, (0), 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 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:29,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:29,430 INFO L93 Difference]: Finished difference Result 397 states and 591 transitions. [2024-11-07 02:42:29,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:42:29,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2024-11-07 02:42:29,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:29,441 INFO L225 Difference]: With dead ends: 397 [2024-11-07 02:42:29,441 INFO L226 Difference]: Without dead ends: 209 [2024-11-07 02:42:29,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:42:29,448 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 0 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:29,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 909 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:42:29,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-07 02:42:29,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-11-07 02:42:29,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.4855769230769231) internal successors, (309), 208 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:29,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 309 transitions. [2024-11-07 02:42:29,496 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 309 transitions. Word has length 41 [2024-11-07 02:42:29,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:29,496 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 309 transitions. [2024-11-07 02:42:29,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:29,497 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 309 transitions. [2024-11-07 02:42:29,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-07 02:42:29,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:29,500 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:29,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 02:42:29,500 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:29,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:29,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1917923931, now seen corresponding path program 1 times [2024-11-07 02:42:29,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:29,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402376587] [2024-11-07 02:42:29,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:29,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:29,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:29,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:29,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402376587] [2024-11-07 02:42:29,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402376587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:29,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:29,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:42:29,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360261487] [2024-11-07 02:42:29,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:29,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:42:29,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:29,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:42:29,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:42:29,903 INFO L87 Difference]: Start difference. First operand 209 states and 309 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:29,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:29,946 INFO L93 Difference]: Finished difference Result 398 states and 589 transitions. [2024-11-07 02:42:29,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:42:29,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2024-11-07 02:42:29,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:29,948 INFO L225 Difference]: With dead ends: 398 [2024-11-07 02:42:29,948 INFO L226 Difference]: Without dead ends: 211 [2024-11-07 02:42:29,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:42:29,950 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 0 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:29,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 905 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:42:29,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-07 02:42:29,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-11-07 02:42:29,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.480952380952381) internal successors, (311), 210 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:29,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 311 transitions. [2024-11-07 02:42:29,960 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 311 transitions. Word has length 42 [2024-11-07 02:42:29,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:29,961 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 311 transitions. [2024-11-07 02:42:29,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:29,961 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 311 transitions. [2024-11-07 02:42:29,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-07 02:42:29,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:29,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:29,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 02:42:29,963 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:29,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:29,963 INFO L85 PathProgramCache]: Analyzing trace with hash -424065425, now seen corresponding path program 1 times [2024-11-07 02:42:29,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:29,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697979606] [2024-11-07 02:42:29,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:29,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:30,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:30,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:30,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697979606] [2024-11-07 02:42:30,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697979606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:30,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:30,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:42:30,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098293871] [2024-11-07 02:42:30,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:30,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:42:30,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:30,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:42:30,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:42:30,741 INFO L87 Difference]: Start difference. First operand 211 states and 311 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:30,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:30,812 INFO L93 Difference]: Finished difference Result 408 states and 602 transitions. [2024-11-07 02:42:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:42:30,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-11-07 02:42:30,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:30,816 INFO L225 Difference]: With dead ends: 408 [2024-11-07 02:42:30,818 INFO L226 Difference]: Without dead ends: 219 [2024-11-07 02:42:30,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:42:30,820 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 5 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:30,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1499 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:42:30,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-07 02:42:30,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2024-11-07 02:42:30,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.4744186046511627) internal successors, (317), 215 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:30,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 317 transitions. [2024-11-07 02:42:30,840 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 317 transitions. Word has length 43 [2024-11-07 02:42:30,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:30,840 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 317 transitions. [2024-11-07 02:42:30,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:30,840 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 317 transitions. [2024-11-07 02:42:30,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-07 02:42:30,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:30,841 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:30,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 02:42:30,841 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:30,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:30,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1517625508, now seen corresponding path program 1 times [2024-11-07 02:42:30,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:30,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865102155] [2024-11-07 02:42:30,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:30,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:31,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:31,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:31,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865102155] [2024-11-07 02:42:31,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865102155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:31,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:31,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:42:31,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757293539] [2024-11-07 02:42:31,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:31,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:42:31,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:31,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:42:31,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:42:31,489 INFO L87 Difference]: Start difference. First operand 216 states and 317 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:31,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:31,578 INFO L93 Difference]: Finished difference Result 419 states and 615 transitions. [2024-11-07 02:42:31,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:42:31,579 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2024-11-07 02:42:31,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:31,580 INFO L225 Difference]: With dead ends: 419 [2024-11-07 02:42:31,580 INFO L226 Difference]: Without dead ends: 225 [2024-11-07 02:42:31,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:42:31,583 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 7 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:31,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1480 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:42:31,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-07 02:42:31,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 220. [2024-11-07 02:42:31,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 1.4703196347031964) internal successors, (322), 219 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:31,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 322 transitions. [2024-11-07 02:42:31,603 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 322 transitions. Word has length 44 [2024-11-07 02:42:31,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:31,603 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 322 transitions. [2024-11-07 02:42:31,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:31,604 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 322 transitions. [2024-11-07 02:42:31,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-07 02:42:31,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:31,605 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:31,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 02:42:31,605 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:31,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:31,606 INFO L85 PathProgramCache]: Analyzing trace with hash -785657493, now seen corresponding path program 1 times [2024-11-07 02:42:31,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:31,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332607257] [2024-11-07 02:42:31,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:31,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:32,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:32,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:32,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332607257] [2024-11-07 02:42:32,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332607257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:32,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:32,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:42:32,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623860242] [2024-11-07 02:42:32,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:32,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:42:32,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:32,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:42:32,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:42:32,159 INFO L87 Difference]: Start difference. First operand 220 states and 322 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:32,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:32,265 INFO L93 Difference]: Finished difference Result 422 states and 618 transitions. [2024-11-07 02:42:32,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:42:32,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2024-11-07 02:42:32,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:32,267 INFO L225 Difference]: With dead ends: 422 [2024-11-07 02:42:32,268 INFO L226 Difference]: Without dead ends: 224 [2024-11-07 02:42:32,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:42:32,269 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 277 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:32,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 859 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:42:32,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-07 02:42:32,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 223. [2024-11-07 02:42:32,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 222 states have (on average 1.4639639639639639) internal successors, (325), 222 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:32,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 325 transitions. [2024-11-07 02:42:32,284 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 325 transitions. Word has length 44 [2024-11-07 02:42:32,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:32,285 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 325 transitions. [2024-11-07 02:42:32,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:32,285 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 325 transitions. [2024-11-07 02:42:32,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-07 02:42:32,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:32,286 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:32,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 02:42:32,287 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:32,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:32,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1316000468, now seen corresponding path program 1 times [2024-11-07 02:42:32,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:32,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879129085] [2024-11-07 02:42:32,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:32,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:33,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:33,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:33,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879129085] [2024-11-07 02:42:33,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879129085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:33,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:33,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 02:42:33,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501484494] [2024-11-07 02:42:33,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:33,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 02:42:33,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:33,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 02:42:33,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:42:33,466 INFO L87 Difference]: Start difference. First operand 223 states and 325 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:33,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:33,762 INFO L93 Difference]: Finished difference Result 597 states and 869 transitions. [2024-11-07 02:42:33,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 02:42:33,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-11-07 02:42:33,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:33,765 INFO L225 Difference]: With dead ends: 597 [2024-11-07 02:42:33,765 INFO L226 Difference]: Without dead ends: 396 [2024-11-07 02:42:33,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-07 02:42:33,766 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 767 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:33,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 1668 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 02:42:33,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-07 02:42:33,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 227. [2024-11-07 02:42:33,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 1.4601769911504425) internal successors, (330), 226 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:33,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 330 transitions. [2024-11-07 02:42:33,775 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 330 transitions. Word has length 45 [2024-11-07 02:42:33,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:33,776 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 330 transitions. [2024-11-07 02:42:33,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:33,776 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 330 transitions. [2024-11-07 02:42:33,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-07 02:42:33,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:33,777 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:33,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 02:42:33,778 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:33,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:33,778 INFO L85 PathProgramCache]: Analyzing trace with hash -2022362363, now seen corresponding path program 1 times [2024-11-07 02:42:33,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:33,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899068222] [2024-11-07 02:42:33,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:33,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:34,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:34,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:34,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899068222] [2024-11-07 02:42:34,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899068222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:34,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:34,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:42:34,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700625974] [2024-11-07 02:42:34,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:34,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:42:34,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:34,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:42:34,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:42:34,414 INFO L87 Difference]: Start difference. First operand 227 states and 330 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:34,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:34,519 INFO L93 Difference]: Finished difference Result 537 states and 778 transitions. [2024-11-07 02:42:34,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:42:34,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-11-07 02:42:34,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:34,521 INFO L225 Difference]: With dead ends: 537 [2024-11-07 02:42:34,521 INFO L226 Difference]: Without dead ends: 336 [2024-11-07 02:42:34,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:42:34,522 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 594 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:34,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 860 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:42:34,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-07 02:42:34,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 227. [2024-11-07 02:42:34,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 1.4557522123893805) internal successors, (329), 226 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:34,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 329 transitions. [2024-11-07 02:42:34,530 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 329 transitions. Word has length 45 [2024-11-07 02:42:34,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:34,530 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 329 transitions. [2024-11-07 02:42:34,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:34,530 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 329 transitions. [2024-11-07 02:42:34,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-07 02:42:34,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:34,533 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:34,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 02:42:34,534 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:34,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:34,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1862258922, now seen corresponding path program 1 times [2024-11-07 02:42:34,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:34,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277469064] [2024-11-07 02:42:34,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:34,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:34,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:34,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:34,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277469064] [2024-11-07 02:42:34,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277469064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:34,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:34,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:42:34,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144083411] [2024-11-07 02:42:34,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:34,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:42:34,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:34,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:42:34,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:42:34,998 INFO L87 Difference]: Start difference. First operand 227 states and 329 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:35,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:35,074 INFO L93 Difference]: Finished difference Result 437 states and 635 transitions. [2024-11-07 02:42:35,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:42:35,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2024-11-07 02:42:35,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:35,076 INFO L225 Difference]: With dead ends: 437 [2024-11-07 02:42:35,076 INFO L226 Difference]: Without dead ends: 236 [2024-11-07 02:42:35,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:42:35,077 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 7 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:35,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1771 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:42:35,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-07 02:42:35,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 231. [2024-11-07 02:42:35,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 230 states have (on average 1.4521739130434783) internal successors, (334), 230 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:35,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 334 transitions. [2024-11-07 02:42:35,083 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 334 transitions. Word has length 46 [2024-11-07 02:42:35,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:35,083 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 334 transitions. [2024-11-07 02:42:35,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:35,083 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 334 transitions. [2024-11-07 02:42:35,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-07 02:42:35,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:35,084 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:35,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 02:42:35,084 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:35,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:35,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1597928529, now seen corresponding path program 1 times [2024-11-07 02:42:35,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:35,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725356227] [2024-11-07 02:42:35,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:35,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:35,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:35,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:35,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725356227] [2024-11-07 02:42:35,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725356227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:35,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:35,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:42:35,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892153512] [2024-11-07 02:42:35,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:35,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:42:35,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:35,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:42:35,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:42:35,765 INFO L87 Difference]: Start difference. First operand 231 states and 334 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:35,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:35,881 INFO L93 Difference]: Finished difference Result 545 states and 786 transitions. [2024-11-07 02:42:35,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:42:35,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2024-11-07 02:42:35,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:35,883 INFO L225 Difference]: With dead ends: 545 [2024-11-07 02:42:35,883 INFO L226 Difference]: Without dead ends: 340 [2024-11-07 02:42:35,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:42:35,884 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 433 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:35,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 861 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:42:35,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-07 02:42:35,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 236. [2024-11-07 02:42:35,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.4425531914893617) internal successors, (339), 235 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:35,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 339 transitions. [2024-11-07 02:42:35,892 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 339 transitions. Word has length 46 [2024-11-07 02:42:35,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:35,892 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 339 transitions. [2024-11-07 02:42:35,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:35,892 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 339 transitions. [2024-11-07 02:42:35,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-07 02:42:35,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:35,893 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:35,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 02:42:35,893 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:35,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:35,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1517421953, now seen corresponding path program 1 times [2024-11-07 02:42:35,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:35,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903606945] [2024-11-07 02:42:35,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:35,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:36,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:36,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:36,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903606945] [2024-11-07 02:42:36,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903606945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:36,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:36,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:42:36,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82853189] [2024-11-07 02:42:36,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:36,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:42:36,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:36,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:42:36,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:42:36,311 INFO L87 Difference]: Start difference. First operand 236 states and 339 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:36,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:36,378 INFO L93 Difference]: Finished difference Result 450 states and 650 transitions. [2024-11-07 02:42:36,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:42:36,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-11-07 02:42:36,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:36,380 INFO L225 Difference]: With dead ends: 450 [2024-11-07 02:42:36,380 INFO L226 Difference]: Without dead ends: 245 [2024-11-07 02:42:36,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:42:36,381 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 7 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:36,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1480 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:42:36,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-07 02:42:36,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 240. [2024-11-07 02:42:36,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 239 states have (on average 1.4393305439330544) internal successors, (344), 239 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:36,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 344 transitions. [2024-11-07 02:42:36,395 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 344 transitions. Word has length 47 [2024-11-07 02:42:36,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:36,396 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 344 transitions. [2024-11-07 02:42:36,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:36,396 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 344 transitions. [2024-11-07 02:42:36,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-07 02:42:36,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:36,396 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:36,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 02:42:36,396 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:36,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:36,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1643932006, now seen corresponding path program 1 times [2024-11-07 02:42:36,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:36,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478434345] [2024-11-07 02:42:36,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:36,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:37,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:37,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:37,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478434345] [2024-11-07 02:42:37,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478434345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:37,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:37,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 02:42:37,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472027729] [2024-11-07 02:42:37,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:37,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 02:42:37,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:37,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 02:42:37,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:42:37,302 INFO L87 Difference]: Start difference. First operand 240 states and 344 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:37,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:37,587 INFO L93 Difference]: Finished difference Result 559 states and 803 transitions. [2024-11-07 02:42:37,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 02:42:37,588 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-11-07 02:42:37,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:37,590 INFO L225 Difference]: With dead ends: 559 [2024-11-07 02:42:37,590 INFO L226 Difference]: Without dead ends: 350 [2024-11-07 02:42:37,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-07 02:42:37,591 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 576 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:37,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1949 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 02:42:37,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-07 02:42:37,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 245. [2024-11-07 02:42:37,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 244 states have (on average 1.4344262295081966) internal successors, (350), 244 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:37,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 350 transitions. [2024-11-07 02:42:37,598 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 350 transitions. Word has length 47 [2024-11-07 02:42:37,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:37,598 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 350 transitions. [2024-11-07 02:42:37,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:37,599 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 350 transitions. [2024-11-07 02:42:37,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-07 02:42:37,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:37,601 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:37,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 02:42:37,601 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:37,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:37,601 INFO L85 PathProgramCache]: Analyzing trace with hash 571085110, now seen corresponding path program 1 times [2024-11-07 02:42:37,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:37,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560663046] [2024-11-07 02:42:37,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:37,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:38,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:38,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:38,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560663046] [2024-11-07 02:42:38,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560663046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:38,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:38,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 02:42:38,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056288262] [2024-11-07 02:42:38,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:38,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 02:42:38,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:38,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 02:42:38,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:42:38,146 INFO L87 Difference]: Start difference. First operand 245 states and 350 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:38,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:38,260 INFO L93 Difference]: Finished difference Result 468 states and 673 transitions. [2024-11-07 02:42:38,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 02:42:38,261 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-11-07 02:42:38,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:38,262 INFO L225 Difference]: With dead ends: 468 [2024-11-07 02:42:38,262 INFO L226 Difference]: Without dead ends: 259 [2024-11-07 02:42:38,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:42:38,264 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 9 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2058 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:38,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2058 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:42:38,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-07 02:42:38,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 255. [2024-11-07 02:42:38,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 254 states have (on average 1.4291338582677164) internal successors, (363), 254 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:38,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 363 transitions. [2024-11-07 02:42:38,272 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 363 transitions. Word has length 47 [2024-11-07 02:42:38,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:38,272 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 363 transitions. [2024-11-07 02:42:38,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:38,272 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 363 transitions. [2024-11-07 02:42:38,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-07 02:42:38,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:38,273 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:38,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 02:42:38,273 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:38,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:38,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1849298044, now seen corresponding path program 1 times [2024-11-07 02:42:38,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:38,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645225655] [2024-11-07 02:42:38,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:38,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:38,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:38,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:38,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645225655] [2024-11-07 02:42:38,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645225655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:38,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:38,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:42:38,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692311097] [2024-11-07 02:42:38,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:38,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:42:38,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:38,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:42:38,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:42:38,743 INFO L87 Difference]: Start difference. First operand 255 states and 363 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:38,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:38,818 INFO L93 Difference]: Finished difference Result 483 states and 693 transitions. [2024-11-07 02:42:38,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:42:38,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-11-07 02:42:38,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:38,820 INFO L225 Difference]: With dead ends: 483 [2024-11-07 02:42:38,820 INFO L226 Difference]: Without dead ends: 264 [2024-11-07 02:42:38,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:42:38,821 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 7 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:38,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1771 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:42:38,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-07 02:42:38,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 259. [2024-11-07 02:42:38,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 1.426356589147287) internal successors, (368), 258 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:38,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 368 transitions. [2024-11-07 02:42:38,830 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 368 transitions. Word has length 48 [2024-11-07 02:42:38,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:38,831 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 368 transitions. [2024-11-07 02:42:38,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 368 transitions. [2024-11-07 02:42:38,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-07 02:42:38,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:38,832 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:38,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 02:42:38,832 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:38,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:38,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1790010952, now seen corresponding path program 1 times [2024-11-07 02:42:38,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:38,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894929351] [2024-11-07 02:42:38,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:38,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:39,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:39,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:39,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894929351] [2024-11-07 02:42:39,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894929351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:39,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:39,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-07 02:42:39,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038019385] [2024-11-07 02:42:39,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:39,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 02:42:39,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:39,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 02:42:39,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2024-11-07 02:42:39,545 INFO L87 Difference]: Start difference. First operand 259 states and 368 transitions. Second operand has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:40,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:40,039 INFO L93 Difference]: Finished difference Result 521 states and 745 transitions. [2024-11-07 02:42:40,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 02:42:40,040 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-11-07 02:42:40,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:40,042 INFO L225 Difference]: With dead ends: 521 [2024-11-07 02:42:40,042 INFO L226 Difference]: Without dead ends: 298 [2024-11-07 02:42:40,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2024-11-07 02:42:40,043 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 25 mSDsluCounter, 4710 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 4990 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:40,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 4990 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 02:42:40,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-07 02:42:40,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 293. [2024-11-07 02:42:40,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 292 states have (on average 1.428082191780822) internal successors, (417), 292 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:40,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 417 transitions. [2024-11-07 02:42:40,053 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 417 transitions. Word has length 48 [2024-11-07 02:42:40,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:40,054 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 417 transitions. [2024-11-07 02:42:40,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:40,055 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 417 transitions. [2024-11-07 02:42:40,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-07 02:42:40,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:40,055 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:40,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 02:42:40,056 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:40,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:40,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1584789789, now seen corresponding path program 1 times [2024-11-07 02:42:40,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:40,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675460997] [2024-11-07 02:42:40,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:40,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:40,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:40,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:40,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675460997] [2024-11-07 02:42:40,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675460997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:40,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:40,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 02:42:40,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229460414] [2024-11-07 02:42:40,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:40,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 02:42:40,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:40,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 02:42:40,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:42:40,853 INFO L87 Difference]: Start difference. First operand 293 states and 417 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:41,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:41,161 INFO L93 Difference]: Finished difference Result 735 states and 1055 transitions. [2024-11-07 02:42:41,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 02:42:41,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-11-07 02:42:41,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:41,164 INFO L225 Difference]: With dead ends: 735 [2024-11-07 02:42:41,164 INFO L226 Difference]: Without dead ends: 478 [2024-11-07 02:42:41,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-07 02:42:41,167 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 786 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:41,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1869 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 02:42:41,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-07 02:42:41,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 298. [2024-11-07 02:42:41,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 1.4242424242424243) internal successors, (423), 297 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:41,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 423 transitions. [2024-11-07 02:42:41,176 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 423 transitions. Word has length 48 [2024-11-07 02:42:41,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:41,176 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 423 transitions. [2024-11-07 02:42:41,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:41,176 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 423 transitions. [2024-11-07 02:42:41,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-07 02:42:41,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:41,177 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:41,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 02:42:41,177 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:41,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:41,177 INFO L85 PathProgramCache]: Analyzing trace with hash 674898361, now seen corresponding path program 1 times [2024-11-07 02:42:41,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:41,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897263517] [2024-11-07 02:42:41,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:41,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:41,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:41,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:41,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897263517] [2024-11-07 02:42:41,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897263517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:41,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:41,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 02:42:41,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076916337] [2024-11-07 02:42:41,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:41,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 02:42:41,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:41,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 02:42:41,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-07 02:42:41,701 INFO L87 Difference]: Start difference. First operand 298 states and 423 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:41,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:41,878 INFO L93 Difference]: Finished difference Result 558 states and 798 transitions. [2024-11-07 02:42:41,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 02:42:41,879 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-11-07 02:42:41,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:41,881 INFO L225 Difference]: With dead ends: 558 [2024-11-07 02:42:41,881 INFO L226 Difference]: Without dead ends: 301 [2024-11-07 02:42:41,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-07 02:42:41,882 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 14 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2932 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:41,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2932 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 02:42:41,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-07 02:42:41,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 299. [2024-11-07 02:42:41,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.419463087248322) internal successors, (423), 298 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:41,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 423 transitions. [2024-11-07 02:42:41,891 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 423 transitions. Word has length 48 [2024-11-07 02:42:41,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:41,891 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 423 transitions. [2024-11-07 02:42:41,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:41,891 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 423 transitions. [2024-11-07 02:42:41,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-07 02:42:41,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:41,892 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:41,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 02:42:41,892 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:41,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:41,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1425616392, now seen corresponding path program 1 times [2024-11-07 02:42:41,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:41,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820680132] [2024-11-07 02:42:41,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:41,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:42,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:42,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:42,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820680132] [2024-11-07 02:42:42,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820680132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:42,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:42,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:42:42,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484871002] [2024-11-07 02:42:42,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:42,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:42:42,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:42,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:42:42,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:42:42,628 INFO L87 Difference]: Start difference. First operand 299 states and 423 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:42,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:42,765 INFO L93 Difference]: Finished difference Result 670 states and 956 transitions. [2024-11-07 02:42:42,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:42:42,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-11-07 02:42:42,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:42,767 INFO L225 Difference]: With dead ends: 670 [2024-11-07 02:42:42,768 INFO L226 Difference]: Without dead ends: 412 [2024-11-07 02:42:42,768 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 02:42:42,769 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 599 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:42,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 848 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:42:42,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-07 02:42:42,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 307. [2024-11-07 02:42:42,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 306 states have (on average 1.411764705882353) internal successors, (432), 306 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:42,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 432 transitions. [2024-11-07 02:42:42,778 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 432 transitions. Word has length 49 [2024-11-07 02:42:42,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:42,778 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 432 transitions. [2024-11-07 02:42:42,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:42,779 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 432 transitions. [2024-11-07 02:42:42,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-07 02:42:42,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:42,779 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:42,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 02:42:42,779 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:42,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:42,780 INFO L85 PathProgramCache]: Analyzing trace with hash -24888816, now seen corresponding path program 1 times [2024-11-07 02:42:42,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:42,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363017573] [2024-11-07 02:42:42,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:42,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:43,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:43,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:43,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363017573] [2024-11-07 02:42:43,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363017573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:43,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:43,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-07 02:42:43,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693773022] [2024-11-07 02:42:43,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:43,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 02:42:43,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:43,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 02:42:43,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2024-11-07 02:42:43,485 INFO L87 Difference]: Start difference. First operand 307 states and 432 transitions. Second operand has 18 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 18 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:43,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:43,884 INFO L93 Difference]: Finished difference Result 570 states and 810 transitions. [2024-11-07 02:42:43,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 02:42:43,884 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 18 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-11-07 02:42:43,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:43,886 INFO L225 Difference]: With dead ends: 570 [2024-11-07 02:42:43,886 INFO L226 Difference]: Without dead ends: 312 [2024-11-07 02:42:43,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2024-11-07 02:42:43,888 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 24 mSDsluCounter, 4642 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4936 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:43,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4936 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 02:42:43,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-11-07 02:42:43,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 308. [2024-11-07 02:42:43,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 1.4104234527687296) internal successors, (433), 307 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:43,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 433 transitions. [2024-11-07 02:42:43,895 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 433 transitions. Word has length 49 [2024-11-07 02:42:43,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:43,896 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 433 transitions. [2024-11-07 02:42:43,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 18 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:43,896 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 433 transitions. [2024-11-07 02:42:43,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-07 02:42:43,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:43,898 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:43,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 02:42:43,899 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:43,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:43,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1384252580, now seen corresponding path program 1 times [2024-11-07 02:42:43,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:43,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770116302] [2024-11-07 02:42:43,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:43,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:44,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:44,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:44,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770116302] [2024-11-07 02:42:44,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770116302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:44,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:44,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-07 02:42:44,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945817947] [2024-11-07 02:42:44,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:44,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 02:42:44,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:44,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 02:42:44,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2024-11-07 02:42:44,500 INFO L87 Difference]: Start difference. First operand 308 states and 433 transitions. Second operand has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:44,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:44,774 INFO L93 Difference]: Finished difference Result 571 states and 811 transitions. [2024-11-07 02:42:44,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 02:42:44,775 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-11-07 02:42:44,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:44,777 INFO L225 Difference]: With dead ends: 571 [2024-11-07 02:42:44,777 INFO L226 Difference]: Without dead ends: 309 [2024-11-07 02:42:44,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2024-11-07 02:42:44,778 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 19 mSDsluCounter, 3510 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 3806 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:44,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 3806 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 02:42:44,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-07 02:42:44,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 306. [2024-11-07 02:42:44,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.4098360655737705) internal successors, (430), 305 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:44,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 430 transitions. [2024-11-07 02:42:44,788 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 430 transitions. Word has length 49 [2024-11-07 02:42:44,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:44,788 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 430 transitions. [2024-11-07 02:42:44,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:44,789 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 430 transitions. [2024-11-07 02:42:44,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 02:42:44,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:44,791 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:44,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 02:42:44,791 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:44,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:44,792 INFO L85 PathProgramCache]: Analyzing trace with hash -735102638, now seen corresponding path program 1 times [2024-11-07 02:42:44,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:44,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709452585] [2024-11-07 02:42:44,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:44,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:48,291 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:48,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:48,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709452585] [2024-11-07 02:42:48,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709452585] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:42:48,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141939299] [2024-11-07 02:42:48,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:48,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:42:48,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:42:48,296 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 02:42:48,297 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 02:42:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:49,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-07 02:42:49,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:42:49,747 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:49,748 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 02:42:49,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141939299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:49,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 02:42:49,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2024-11-07 02:42:49,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480904891] [2024-11-07 02:42:49,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:49,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 02:42:49,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:49,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 02:42:49,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-07 02:42:49,749 INFO L87 Difference]: Start difference. First operand 306 states and 430 transitions. Second operand has 8 states, 8 states have (on average 17.875) internal successors, (143), 8 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:50,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:50,401 INFO L93 Difference]: Finished difference Result 756 states and 1084 transitions. [2024-11-07 02:42:50,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 02:42:50,402 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.875) internal successors, (143), 8 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-07 02:42:50,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:50,404 INFO L225 Difference]: With dead ends: 756 [2024-11-07 02:42:50,404 INFO L226 Difference]: Without dead ends: 496 [2024-11-07 02:42:50,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2024-11-07 02:42:50,406 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 926 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:50,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 814 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 02:42:50,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-07 02:42:50,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 354. [2024-11-07 02:42:50,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 353 states have (on average 1.405099150141643) internal successors, (496), 353 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:50,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 496 transitions. [2024-11-07 02:42:50,416 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 496 transitions. Word has length 143 [2024-11-07 02:42:50,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:50,417 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 496 transitions. [2024-11-07 02:42:50,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.875) internal successors, (143), 8 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:50,417 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 496 transitions. [2024-11-07 02:42:50,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-07 02:42:50,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:50,419 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:50,444 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 02:42:50,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:42:50,624 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:50,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:50,624 INFO L85 PathProgramCache]: Analyzing trace with hash 769271356, now seen corresponding path program 1 times [2024-11-07 02:42:50,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:50,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866480914] [2024-11-07 02:42:50,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:50,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:51,945 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:51,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:51,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866480914] [2024-11-07 02:42:51,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866480914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:51,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:42:51,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:42:51,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926201182] [2024-11-07 02:42:51,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:51,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:42:51,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:51,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:42:51,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:42:51,947 INFO L87 Difference]: Start difference. First operand 354 states and 496 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 7 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:52,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:52,089 INFO L93 Difference]: Finished difference Result 709 states and 1012 transitions. [2024-11-07 02:42:52,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:42:52,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 7 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2024-11-07 02:42:52,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:52,092 INFO L225 Difference]: With dead ends: 709 [2024-11-07 02:42:52,092 INFO L226 Difference]: Without dead ends: 449 [2024-11-07 02:42:52,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:42:52,093 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 467 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:52,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 1247 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:42:52,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-07 02:42:52,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 365. [2024-11-07 02:42:52,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.4065934065934067) internal successors, (512), 364 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:52,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 512 transitions. [2024-11-07 02:42:52,104 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 512 transitions. Word has length 144 [2024-11-07 02:42:52,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:52,104 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 512 transitions. [2024-11-07 02:42:52,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 7 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:52,105 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 512 transitions. [2024-11-07 02:42:52,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-07 02:42:52,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:52,107 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:52,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 02:42:52,107 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:52,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:52,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1155888661, now seen corresponding path program 1 times [2024-11-07 02:42:52,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:52,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760425699] [2024-11-07 02:42:52,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:52,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:57,336 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:57,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:42:57,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760425699] [2024-11-07 02:42:57,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760425699] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:42:57,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899504812] [2024-11-07 02:42:57,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:57,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:42:57,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:42:57,340 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 02:42:57,342 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 02:42:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:42:58,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-07 02:42:58,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:42:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:42:58,520 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 02:42:58,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899504812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:42:58,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 02:42:58,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 24 [2024-11-07 02:42:58,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999676788] [2024-11-07 02:42:58,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:42:58,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 02:42:58,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:42:58,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 02:42:58,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2024-11-07 02:42:58,522 INFO L87 Difference]: Start difference. First operand 365 states and 512 transitions. Second operand has 8 states, 8 states have (on average 18.0) internal successors, (144), 8 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:59,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:42:59,120 INFO L93 Difference]: Finished difference Result 805 states and 1150 transitions. [2024-11-07 02:42:59,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 02:42:59,121 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.0) internal successors, (144), 8 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2024-11-07 02:42:59,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:42:59,123 INFO L225 Difference]: With dead ends: 805 [2024-11-07 02:42:59,123 INFO L226 Difference]: Without dead ends: 518 [2024-11-07 02:42:59,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 139 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=700, Unknown=0, NotChecked=0, Total=812 [2024-11-07 02:42:59,126 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 972 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 02:42:59,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 813 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 02:42:59,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-07 02:42:59,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 370. [2024-11-07 02:42:59,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 369 states have (on average 1.4037940379403795) internal successors, (518), 369 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:59,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 518 transitions. [2024-11-07 02:42:59,134 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 518 transitions. Word has length 144 [2024-11-07 02:42:59,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:42:59,136 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 518 transitions. [2024-11-07 02:42:59,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.0) internal successors, (144), 8 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:42:59,136 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 518 transitions. [2024-11-07 02:42:59,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 02:42:59,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:42:59,138 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:42:59,161 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 02:42:59,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:42:59,338 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:42:59,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:42:59,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1411171662, now seen corresponding path program 1 times [2024-11-07 02:42:59,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:42:59,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849382302] [2024-11-07 02:42:59,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:42:59,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:42:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:43:02,058 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 02:43:02,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:43:02,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849382302] [2024-11-07 02:43:02,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849382302] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:43:02,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119319426] [2024-11-07 02:43:02,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:43:02,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:43:02,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:43:02,061 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 02:43:02,063 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 02:43:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:43:02,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-11-07 02:43:02,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:43:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:43:03,925 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 02:43:03,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119319426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:43:03,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 02:43:03,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [13] total 28 [2024-11-07 02:43:03,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435933521] [2024-11-07 02:43:03,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:43:03,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 02:43:03,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:43:03,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 02:43:03,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2024-11-07 02:43:03,927 INFO L87 Difference]: Start difference. First operand 370 states and 518 transitions. Second operand has 17 states, 17 states have (on average 8.529411764705882) internal successors, (145), 17 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:05,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:43:05,008 INFO L93 Difference]: Finished difference Result 866 states and 1240 transitions. [2024-11-07 02:43:05,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 02:43:05,008 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.529411764705882) internal successors, (145), 17 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-11-07 02:43:05,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:43:05,011 INFO L225 Difference]: With dead ends: 866 [2024-11-07 02:43:05,011 INFO L226 Difference]: Without dead ends: 606 [2024-11-07 02:43:05,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=1166, Unknown=0, NotChecked=0, Total=1332 [2024-11-07 02:43:05,013 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 931 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 02:43:05,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 1827 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 02:43:05,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-07 02:43:05,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 436. [2024-11-07 02:43:05,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 435 states have (on average 1.4137931034482758) internal successors, (615), 435 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 615 transitions. [2024-11-07 02:43:05,023 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 615 transitions. Word has length 145 [2024-11-07 02:43:05,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:43:05,023 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 615 transitions. [2024-11-07 02:43:05,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.529411764705882) internal successors, (145), 17 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:05,023 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 615 transitions. [2024-11-07 02:43:05,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 02:43:05,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:43:05,026 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:43:05,049 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 02:43:05,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:43:05,227 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:43:05,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:43:05,227 INFO L85 PathProgramCache]: Analyzing trace with hash -711752985, now seen corresponding path program 1 times [2024-11-07 02:43:05,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:43:05,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892486370] [2024-11-07 02:43:05,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:43:05,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:43:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:43:08,963 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:43:08,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:43:08,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892486370] [2024-11-07 02:43:08,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892486370] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:43:08,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738755597] [2024-11-07 02:43:08,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:43:08,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:43:08,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:43:08,966 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 02:43:08,966 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 02:43:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:43:09,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-07 02:43:09,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:43:10,532 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:43:10,533 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 02:43:10,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738755597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:43:10,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 02:43:10,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [13] total 27 [2024-11-07 02:43:10,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424861705] [2024-11-07 02:43:10,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:43:10,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 02:43:10,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:43:10,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 02:43:10,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2024-11-07 02:43:10,535 INFO L87 Difference]: Start difference. First operand 436 states and 615 transitions. Second operand has 16 states, 16 states have (on average 9.0625) internal successors, (145), 16 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:11,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:43:11,369 INFO L93 Difference]: Finished difference Result 862 states and 1232 transitions. [2024-11-07 02:43:11,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 02:43:11,370 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.0625) internal successors, (145), 16 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-11-07 02:43:11,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:43:11,372 INFO L225 Difference]: With dead ends: 862 [2024-11-07 02:43:11,372 INFO L226 Difference]: Without dead ends: 602 [2024-11-07 02:43:11,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 132 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2024-11-07 02:43:11,374 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 826 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 02:43:11,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 1726 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 02:43:11,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-07 02:43:11,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 478. [2024-11-07 02:43:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 477 states have (on average 1.4171907756813418) internal successors, (676), 477 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:11,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 676 transitions. [2024-11-07 02:43:11,384 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 676 transitions. Word has length 145 [2024-11-07 02:43:11,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:43:11,384 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 676 transitions. [2024-11-07 02:43:11,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.0625) internal successors, (145), 16 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:11,384 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 676 transitions. [2024-11-07 02:43:11,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 02:43:11,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:43:11,386 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:43:11,409 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 02:43:11,586 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,SelfDestructingSolverStorable23 [2024-11-07 02:43:11,586 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:43:11,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:43:11,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1338983381, now seen corresponding path program 1 times [2024-11-07 02:43:11,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:43:11,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397922502] [2024-11-07 02:43:11,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:43:11,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:43:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:43:15,038 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 02:43:15,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:43:15,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397922502] [2024-11-07 02:43:15,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397922502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:43:15,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100921412] [2024-11-07 02:43:15,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:43:15,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:43:15,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:43:15,042 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 02:43:15,045 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 02:43:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:43:15,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-07 02:43:15,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:43:16,657 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:43:16,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 02:43:16,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100921412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:43:16,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 02:43:16,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [12] total 24 [2024-11-07 02:43:16,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173290363] [2024-11-07 02:43:16,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:43:16,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 02:43:16,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:43:16,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 02:43:16,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2024-11-07 02:43:16,659 INFO L87 Difference]: Start difference. First operand 478 states and 676 transitions. Second operand has 14 states, 14 states have (on average 10.357142857142858) internal successors, (145), 14 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:17,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:43:17,609 INFO L93 Difference]: Finished difference Result 1086 states and 1562 transitions. [2024-11-07 02:43:17,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 02:43:17,610 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.357142857142858) internal successors, (145), 14 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-11-07 02:43:17,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:43:17,613 INFO L225 Difference]: With dead ends: 1086 [2024-11-07 02:43:17,613 INFO L226 Difference]: Without dead ends: 826 [2024-11-07 02:43:17,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 136 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=794, Unknown=0, NotChecked=0, Total=930 [2024-11-07 02:43:17,615 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 794 mSDsluCounter, 1891 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 02:43:17,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 2128 Invalid, 1653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1652 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 02:43:17,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-07 02:43:17,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 546. [2024-11-07 02:43:17,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 545 states have (on average 1.4275229357798165) internal successors, (778), 545 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:17,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 778 transitions. [2024-11-07 02:43:17,630 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 778 transitions. Word has length 145 [2024-11-07 02:43:17,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:43:17,630 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 778 transitions. [2024-11-07 02:43:17,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.357142857142858) internal successors, (145), 14 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:17,630 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 778 transitions. [2024-11-07 02:43:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 02:43:17,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:43:17,632 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:43:17,657 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 02:43:17,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-07 02:43:17,834 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:43:17,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:43:17,835 INFO L85 PathProgramCache]: Analyzing trace with hash -783941266, now seen corresponding path program 1 times [2024-11-07 02:43:17,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:43:17,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586578004] [2024-11-07 02:43:17,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:43:17,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:43:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:43:22,374 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:43:22,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:43:22,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586578004] [2024-11-07 02:43:22,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586578004] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:43:22,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062175902] [2024-11-07 02:43:22,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:43:22,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:43:22,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:43:22,377 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 02:43:22,379 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 02:43:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:43:23,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 87 conjuncts are in the unsatisfiable core [2024-11-07 02:43:23,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:43:23,890 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:43:23,890 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 02:43:23,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062175902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:43:23,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 02:43:23,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [17] total 29 [2024-11-07 02:43:23,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165306243] [2024-11-07 02:43:23,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:43:23,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 02:43:23,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:43:23,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 02:43:23,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=706, Unknown=0, NotChecked=0, Total=812 [2024-11-07 02:43:23,893 INFO L87 Difference]: Start difference. First operand 546 states and 778 transitions. Second operand has 14 states, 14 states have (on average 10.357142857142858) internal successors, (145), 14 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:24,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:43:24,663 INFO L93 Difference]: Finished difference Result 1239 states and 1788 transitions. [2024-11-07 02:43:24,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 02:43:24,663 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.357142857142858) internal successors, (145), 14 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-11-07 02:43:24,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:43:24,666 INFO L225 Difference]: With dead ends: 1239 [2024-11-07 02:43:24,666 INFO L226 Difference]: Without dead ends: 979 [2024-11-07 02:43:24,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=1214, Unknown=0, NotChecked=0, Total=1406 [2024-11-07 02:43:24,667 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 1063 mSDsluCounter, 1350 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 02:43:24,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 1604 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 02:43:24,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2024-11-07 02:43:24,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 649. [2024-11-07 02:43:24,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 648 states have (on average 1.433641975308642) internal successors, (929), 648 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:24,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 929 transitions. [2024-11-07 02:43:24,678 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 929 transitions. Word has length 145 [2024-11-07 02:43:24,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:43:24,679 INFO L471 AbstractCegarLoop]: Abstraction has 649 states and 929 transitions. [2024-11-07 02:43:24,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.357142857142858) internal successors, (145), 14 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:24,679 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 929 transitions. [2024-11-07 02:43:24,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 02:43:24,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:43:24,680 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:43:24,704 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 02:43:24,884 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,SelfDestructingSolverStorable25 [2024-11-07 02:43:24,885 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:43:24,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:43:24,885 INFO L85 PathProgramCache]: Analyzing trace with hash 685522076, now seen corresponding path program 1 times [2024-11-07 02:43:24,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:43:24,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260764758] [2024-11-07 02:43:24,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:43:24,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:43:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:43:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 02:43:28,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:43:28,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260764758] [2024-11-07 02:43:28,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260764758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:43:28,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348347818] [2024-11-07 02:43:28,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:43:28,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:43:28,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:43:28,690 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 02:43:28,691 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 02:43:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:43:29,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-11-07 02:43:29,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:43:30,073 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:43:30,074 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 02:43:30,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348347818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:43:30,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 02:43:30,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [13] total 23 [2024-11-07 02:43:30,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183053522] [2024-11-07 02:43:30,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:43:30,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 02:43:30,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:43:30,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 02:43:30,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2024-11-07 02:43:30,075 INFO L87 Difference]: Start difference. First operand 649 states and 929 transitions. Second operand has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:30,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:43:30,711 INFO L93 Difference]: Finished difference Result 1284 states and 1852 transitions. [2024-11-07 02:43:30,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 02:43:30,711 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-11-07 02:43:30,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:43:30,714 INFO L225 Difference]: With dead ends: 1284 [2024-11-07 02:43:30,714 INFO L226 Difference]: Without dead ends: 988 [2024-11-07 02:43:30,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=643, Unknown=0, NotChecked=0, Total=756 [2024-11-07 02:43:30,715 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 824 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 02:43:30,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 1304 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 02:43:30,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2024-11-07 02:43:30,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 732. [2024-11-07 02:43:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.4363885088919288) internal successors, (1050), 731 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:30,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1050 transitions. [2024-11-07 02:43:30,729 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1050 transitions. Word has length 145 [2024-11-07 02:43:30,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:43:30,729 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1050 transitions. [2024-11-07 02:43:30,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:43:30,729 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1050 transitions. [2024-11-07 02:43:30,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 02:43:30,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:43:30,732 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:43:30,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 02:43:30,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:43:30,933 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:43:30,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:43:30,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1437402571, now seen corresponding path program 1 times [2024-11-07 02:43:30,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:43:30,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14611233] [2024-11-07 02:43:30,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:43:30,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:43:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:43:34,593 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 02:43:34,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:43:34,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14611233] [2024-11-07 02:43:34,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14611233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:43:34,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280963713] [2024-11-07 02:43:34,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:43:34,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:43:34,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:43:34,596 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 02:43:34,597 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 02:43:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:43:35,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 87 conjuncts are in the unsatisfiable core [2024-11-07 02:43:35,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:43:36,110 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:43:36,110 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 02:43:36,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280963713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:43:36,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 02:43:36,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [16] total 27 [2024-11-07 02:43:36,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399836410] [2024-11-07 02:43:36,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:43:36,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 02:43:36,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:43:36,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 02:43:36,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2024-11-07 02:43:36,112 INFO L87 Difference]: Start difference. First operand 732 states and 1050 transitions. Second operand has 13 states, 13 states have (on average 11.153846153846153) internal successors, (145), 13 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)