./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label26.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/eca-rers2012/Problem16_label26.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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', '32bit', '--witnessprinter.graph.data.programhash', '19a3ef648ea6e38f7d276220abc8bcbc6382e3dd9d7763e8b9d5f30e7cff149e'] 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/eca-rers2012/Problem16_label26.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 19a3ef648ea6e38f7d276220abc8bcbc6382e3dd9d7763e8b9d5f30e7cff149e --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 20:01:27,264 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 20:01:27,321 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 20:01:27,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 20:01:27,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 20:01:27,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 20:01:27,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 20:01:27,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 20:01:27,345 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 20:01:27,345 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 20:01:27,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 20:01:27,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 20:01:27,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 20:01:27,346 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 20:01:27,346 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 20:01:27,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 20:01:27,347 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 20:01:27,347 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 20:01:27,347 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 20:01:27,347 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 20:01:27,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 20:01:27,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 20:01:27,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 20:01:27,347 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 20:01:27,348 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 20:01:27,348 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 20:01:27,348 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 20:01:27,348 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 20:01:27,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 20:01:27,348 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 20:01:27,348 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 20:01:27,348 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 20:01:27,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:01:27,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 20:01:27,349 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 20:01:27,349 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 20:01:27,349 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 20:01:27,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 20:01:27,350 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 20:01:27,350 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 20:01:27,350 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 20:01:27,350 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 20:01:27,350 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19a3ef648ea6e38f7d276220abc8bcbc6382e3dd9d7763e8b9d5f30e7cff149e [2024-11-06 20:01:27,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 20:01:27,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 20:01:27,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 20:01:27,572 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 20:01:27,572 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 20:01:27,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label26.c [2024-11-06 20:01:28,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 20:01:29,029 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 20:01:29,032 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label26.c [2024-11-06 20:01:29,046 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f49b627cc/5a583b36cea74cfead1c51b68e1f96bf/FLAGeb820d988 [2024-11-06 20:01:29,061 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f49b627cc/5a583b36cea74cfead1c51b68e1f96bf [2024-11-06 20:01:29,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 20:01:29,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 20:01:29,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 20:01:29,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 20:01:29,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 20:01:29,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:01:29" (1/1) ... [2024-11-06 20:01:29,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eed7ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29, skipping insertion in model container [2024-11-06 20:01:29,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:01:29" (1/1) ... [2024-11-06 20:01:29,112 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 20:01:29,225 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/eca-rers2012/Problem16_label26.c[3798,3811] [2024-11-06 20:01:29,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:01:29,433 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 20:01:29,459 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/eca-rers2012/Problem16_label26.c[3798,3811] [2024-11-06 20:01:29,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:01:29,557 INFO L204 MainTranslator]: Completed translation [2024-11-06 20:01:29,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29 WrapperNode [2024-11-06 20:01:29,558 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 20:01:29,559 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 20:01:29,560 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 20:01:29,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 20:01:29,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29" (1/1) ... [2024-11-06 20:01:29,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29" (1/1) ... [2024-11-06 20:01:29,681 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1770 [2024-11-06 20:01:29,681 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 20:01:29,682 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 20:01:29,682 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 20:01:29,682 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 20:01:29,688 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29" (1/1) ... [2024-11-06 20:01:29,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29" (1/1) ... [2024-11-06 20:01:29,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29" (1/1) ... [2024-11-06 20:01:29,740 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]. [2024-11-06 20:01:29,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29" (1/1) ... [2024-11-06 20:01:29,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29" (1/1) ... [2024-11-06 20:01:29,777 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29" (1/1) ... [2024-11-06 20:01:29,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29" (1/1) ... [2024-11-06 20:01:29,809 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29" (1/1) ... [2024-11-06 20:01:29,815 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29" (1/1) ... [2024-11-06 20:01:29,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 20:01:29,826 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 20:01:29,826 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 20:01:29,826 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 20:01:29,827 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29" (1/1) ... [2024-11-06 20:01:29,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:01:29,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:01:29,851 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) [2024-11-06 20:01:29,853 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 [2024-11-06 20:01:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 20:01:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 20:01:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 20:01:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 20:01:29,923 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 20:01:29,924 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 20:01:31,486 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-06 20:01:31,486 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 20:01:31,505 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 20:01:31,505 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 20:01:31,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:01:31 BoogieIcfgContainer [2024-11-06 20:01:31,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 20:01:31,507 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 20:01:31,508 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 20:01:31,512 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 20:01:31,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:01:29" (1/3) ... [2024-11-06 20:01:31,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132b0764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:01:31, skipping insertion in model container [2024-11-06 20:01:31,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:29" (2/3) ... [2024-11-06 20:01:31,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132b0764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:01:31, skipping insertion in model container [2024-11-06 20:01:31,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:01:31" (3/3) ... [2024-11-06 20:01:31,514 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label26.c [2024-11-06 20:01:31,524 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 20:01:31,524 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 20:01:31,576 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 20:01:31,584 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;@ba9e375, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 20:01:31,584 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 20:01:31,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:31,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-06 20:01:31,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:31,596 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] [2024-11-06 20:01:31,596 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:31,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:31,600 INFO L85 PathProgramCache]: Analyzing trace with hash -596708735, now seen corresponding path program 1 times [2024-11-06 20:01:31,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:31,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91230793] [2024-11-06 20:01:31,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:31,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:01:31,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:31,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91230793] [2024-11-06 20:01:31,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91230793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:31,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:31,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:01:31,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284189152] [2024-11-06 20:01:31,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:31,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:31,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:31,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:31,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:31,846 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:33,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:33,134 INFO L93 Difference]: Finished difference Result 1122 states and 2103 transitions. [2024-11-06 20:01:33,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:33,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2024-11-06 20:01:33,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:33,143 INFO L225 Difference]: With dead ends: 1122 [2024-11-06 20:01:33,144 INFO L226 Difference]: Without dead ends: 662 [2024-11-06 20:01:33,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:33,148 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 352 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:33,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 254 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 20:01:33,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-06 20:01:33,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-11-06 20:01:33,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.518910741301059) internal successors, (1004), 661 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:33,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1004 transitions. [2024-11-06 20:01:33,196 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1004 transitions. Word has length 35 [2024-11-06 20:01:33,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:33,197 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1004 transitions. [2024-11-06 20:01:33,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:33,197 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1004 transitions. [2024-11-06 20:01:33,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-06 20:01:33,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:33,201 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:33,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 20:01:33,202 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:33,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:33,202 INFO L85 PathProgramCache]: Analyzing trace with hash -160204538, now seen corresponding path program 1 times [2024-11-06 20:01:33,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:33,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194958175] [2024-11-06 20:01:33,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:33,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:33,415 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:01:33,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:33,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194958175] [2024-11-06 20:01:33,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194958175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:33,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:33,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:01:33,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392484248] [2024-11-06 20:01:33,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:33,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:33,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:33,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:33,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:33,419 INFO L87 Difference]: Start difference. First operand 662 states and 1004 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:34,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:34,590 INFO L93 Difference]: Finished difference Result 1980 states and 3007 transitions. [2024-11-06 20:01:34,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:34,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2024-11-06 20:01:34,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:34,595 INFO L225 Difference]: With dead ends: 1980 [2024-11-06 20:01:34,595 INFO L226 Difference]: Without dead ends: 1320 [2024-11-06 20:01:34,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:34,597 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 268 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:34,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 217 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 20:01:34,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-11-06 20:01:34,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2024-11-06 20:01:34,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.4556482183472328) internal successors, (1920), 1319 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:34,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1920 transitions. [2024-11-06 20:01:34,629 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1920 transitions. Word has length 103 [2024-11-06 20:01:34,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:34,629 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 1920 transitions. [2024-11-06 20:01:34,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:34,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1920 transitions. [2024-11-06 20:01:34,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-06 20:01:34,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:34,635 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:34,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 20:01:34,635 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:34,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:34,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1741004193, now seen corresponding path program 1 times [2024-11-06 20:01:34,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:34,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336454578] [2024-11-06 20:01:34,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:34,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:34,778 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:01:34,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:34,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336454578] [2024-11-06 20:01:34,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336454578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:34,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:34,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:01:34,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386129333] [2024-11-06 20:01:34,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:34,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:34,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:34,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:34,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:34,780 INFO L87 Difference]: Start difference. First operand 1320 states and 1920 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:35,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:35,753 INFO L93 Difference]: Finished difference Result 3954 states and 5755 transitions. [2024-11-06 20:01:35,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:35,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2024-11-06 20:01:35,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:35,761 INFO L225 Difference]: With dead ends: 3954 [2024-11-06 20:01:35,761 INFO L226 Difference]: Without dead ends: 2636 [2024-11-06 20:01:35,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:35,762 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 369 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:35,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 155 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 20:01:35,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2024-11-06 20:01:35,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2024-11-06 20:01:35,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2635 states have (on average 1.3240986717267553) internal successors, (3489), 2635 states have internal predecessors, (3489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:35,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3489 transitions. [2024-11-06 20:01:35,794 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3489 transitions. Word has length 114 [2024-11-06 20:01:35,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:35,794 INFO L471 AbstractCegarLoop]: Abstraction has 2636 states and 3489 transitions. [2024-11-06 20:01:35,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:35,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3489 transitions. [2024-11-06 20:01:35,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-06 20:01:35,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:35,796 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:35,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 20:01:35,797 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:35,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:35,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2737761, now seen corresponding path program 1 times [2024-11-06 20:01:35,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:35,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449513407] [2024-11-06 20:01:35,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:35,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-06 20:01:35,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:35,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449513407] [2024-11-06 20:01:35,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449513407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:35,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:35,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:01:35,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586211890] [2024-11-06 20:01:35,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:35,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:35,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:35,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:35,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:35,988 INFO L87 Difference]: Start difference. First operand 2636 states and 3489 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:36,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:36,850 INFO L93 Difference]: Finished difference Result 6586 states and 8545 transitions. [2024-11-06 20:01:36,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:36,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 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 232 [2024-11-06 20:01:36,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:36,861 INFO L225 Difference]: With dead ends: 6586 [2024-11-06 20:01:36,861 INFO L226 Difference]: Without dead ends: 3952 [2024-11-06 20:01:36,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:36,864 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 277 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:36,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 84 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 20:01:36,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2024-11-06 20:01:36,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952. [2024-11-06 20:01:36,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3952 states, 3951 states have (on average 1.216400911161731) internal successors, (4806), 3951 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:36,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 4806 transitions. [2024-11-06 20:01:36,906 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 4806 transitions. Word has length 232 [2024-11-06 20:01:36,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:36,907 INFO L471 AbstractCegarLoop]: Abstraction has 3952 states and 4806 transitions. [2024-11-06 20:01:36,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:36,907 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 4806 transitions. [2024-11-06 20:01:36,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-06 20:01:36,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:36,909 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:36,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 20:01:36,910 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:36,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:36,910 INFO L85 PathProgramCache]: Analyzing trace with hash -550188002, now seen corresponding path program 1 times [2024-11-06 20:01:36,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:36,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559802313] [2024-11-06 20:01:36,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:36,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:37,401 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:01:37,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:37,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559802313] [2024-11-06 20:01:37,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559802313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:37,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:37,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:37,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901525425] [2024-11-06 20:01:37,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:37,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:01:37,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:37,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:01:37,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:01:37,405 INFO L87 Difference]: Start difference. First operand 3952 states and 4806 transitions. Second operand has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:38,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:38,399 INFO L93 Difference]: Finished difference Result 8231 states and 9951 transitions. [2024-11-06 20:01:38,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:01:38,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 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 280 [2024-11-06 20:01:38,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:38,409 INFO L225 Difference]: With dead ends: 8231 [2024-11-06 20:01:38,409 INFO L226 Difference]: Without dead ends: 4281 [2024-11-06 20:01:38,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 20:01:38,411 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 127 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:38,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 322 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 20:01:38,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4281 states. [2024-11-06 20:01:38,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4281 to 4281. [2024-11-06 20:01:38,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4281 states, 4280 states have (on average 1.2011682242990653) internal successors, (5141), 4280 states have internal predecessors, (5141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:38,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4281 states to 4281 states and 5141 transitions. [2024-11-06 20:01:38,456 INFO L78 Accepts]: Start accepts. Automaton has 4281 states and 5141 transitions. Word has length 280 [2024-11-06 20:01:38,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:38,456 INFO L471 AbstractCegarLoop]: Abstraction has 4281 states and 5141 transitions. [2024-11-06 20:01:38,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:38,456 INFO L276 IsEmpty]: Start isEmpty. Operand 4281 states and 5141 transitions. [2024-11-06 20:01:38,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-06 20:01:38,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:38,459 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:38,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 20:01:38,460 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:38,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:38,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1774097940, now seen corresponding path program 1 times [2024-11-06 20:01:38,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:38,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621258170] [2024-11-06 20:01:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:38,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:38,919 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:01:38,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:38,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621258170] [2024-11-06 20:01:38,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621258170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:38,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:38,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 20:01:38,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824375576] [2024-11-06 20:01:38,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:38,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 20:01:38,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:38,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 20:01:38,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:01:38,922 INFO L87 Difference]: Start difference. First operand 4281 states and 5141 transitions. Second operand has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:40,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:40,244 INFO L93 Difference]: Finished difference Result 8090 states and 9792 transitions. [2024-11-06 20:01:40,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 20:01:40,244 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 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 367 [2024-11-06 20:01:40,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:40,252 INFO L225 Difference]: With dead ends: 8090 [2024-11-06 20:01:40,252 INFO L226 Difference]: Without dead ends: 3952 [2024-11-06 20:01:40,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:01:40,255 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 315 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:40,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 288 Invalid, 2440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-06 20:01:40,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2024-11-06 20:01:40,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952. [2024-11-06 20:01:40,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3952 states, 3951 states have (on average 1.0802328524424196) internal successors, (4268), 3951 states have internal predecessors, (4268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:40,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 4268 transitions. [2024-11-06 20:01:40,309 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 4268 transitions. Word has length 367 [2024-11-06 20:01:40,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:40,309 INFO L471 AbstractCegarLoop]: Abstraction has 3952 states and 4268 transitions. [2024-11-06 20:01:40,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:40,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 4268 transitions. [2024-11-06 20:01:40,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2024-11-06 20:01:40,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:40,312 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:40,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 20:01:40,313 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:40,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:40,313 INFO L85 PathProgramCache]: Analyzing trace with hash 799876612, now seen corresponding path program 1 times [2024-11-06 20:01:40,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:40,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709077038] [2024-11-06 20:01:40,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:40,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:40,516 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-06 20:01:40,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:40,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709077038] [2024-11-06 20:01:40,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709077038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:40,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:40,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:40,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127076276] [2024-11-06 20:01:40,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:40,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:40,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:40,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:40,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:40,518 INFO L87 Difference]: Start difference. First operand 3952 states and 4268 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:41,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:41,211 INFO L93 Difference]: Finished difference Result 9218 states and 10060 transitions. [2024-11-06 20:01:41,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:41,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 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 374 [2024-11-06 20:01:41,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:41,222 INFO L225 Difference]: With dead ends: 9218 [2024-11-06 20:01:41,222 INFO L226 Difference]: Without dead ends: 5597 [2024-11-06 20:01:41,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:41,225 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 300 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:41,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 406 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:01:41,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5597 states. [2024-11-06 20:01:41,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5597 to 5597. [2024-11-06 20:01:41,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5597 states, 5596 states have (on average 1.0748749106504647) internal successors, (6015), 5596 states have internal predecessors, (6015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:41,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 6015 transitions. [2024-11-06 20:01:41,276 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 6015 transitions. Word has length 374 [2024-11-06 20:01:41,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:41,277 INFO L471 AbstractCegarLoop]: Abstraction has 5597 states and 6015 transitions. [2024-11-06 20:01:41,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:41,277 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 6015 transitions. [2024-11-06 20:01:41,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-06 20:01:41,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:41,282 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 20:01:41,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 20:01:41,282 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:41,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:41,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1213919491, now seen corresponding path program 1 times [2024-11-06 20:01:41,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:41,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439063727] [2024-11-06 20:01:41,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:41,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:41,605 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:01:41,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:41,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439063727] [2024-11-06 20:01:41,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439063727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:41,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:41,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:41,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145909067] [2024-11-06 20:01:41,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:41,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:41,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:41,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:41,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:41,607 INFO L87 Difference]: Start difference. First operand 5597 states and 6015 transitions. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:42,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:42,303 INFO L93 Difference]: Finished difference Result 10863 states and 11697 transitions. [2024-11-06 20:01:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:42,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 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 429 [2024-11-06 20:01:42,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:42,316 INFO L225 Difference]: With dead ends: 10863 [2024-11-06 20:01:42,316 INFO L226 Difference]: Without dead ends: 5597 [2024-11-06 20:01:42,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:42,320 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 178 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:42,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 417 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:01:42,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5597 states. [2024-11-06 20:01:42,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5597 to 5597. [2024-11-06 20:01:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5597 states, 5596 states have (on average 1.0491422444603289) internal successors, (5871), 5596 states have internal predecessors, (5871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:42,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 5871 transitions. [2024-11-06 20:01:42,379 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 5871 transitions. Word has length 429 [2024-11-06 20:01:42,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:42,379 INFO L471 AbstractCegarLoop]: Abstraction has 5597 states and 5871 transitions. [2024-11-06 20:01:42,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:42,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 5871 transitions. [2024-11-06 20:01:42,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-06 20:01:42,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:42,382 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:42,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 20:01:42,383 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:42,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:42,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1986410989, now seen corresponding path program 1 times [2024-11-06 20:01:42,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:42,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713459040] [2024-11-06 20:01:42,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:42,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:42,676 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:01:42,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:42,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713459040] [2024-11-06 20:01:42,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713459040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:42,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:42,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:42,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969393048] [2024-11-06 20:01:42,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:42,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:01:42,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:42,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:01:42,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:01:42,680 INFO L87 Difference]: Start difference. First operand 5597 states and 5871 transitions. Second operand has 4 states, 4 states have (on average 128.25) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:43,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:43,769 INFO L93 Difference]: Finished difference Result 16456 states and 17283 transitions. [2024-11-06 20:01:43,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:01:43,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 128.25) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 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 513 [2024-11-06 20:01:43,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:43,786 INFO L225 Difference]: With dead ends: 16456 [2024-11-06 20:01:43,786 INFO L226 Difference]: Without dead ends: 11190 [2024-11-06 20:01:43,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:01:43,790 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 192 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:43,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 98 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-06 20:01:43,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11190 states. [2024-11-06 20:01:43,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11190 to 9216. [2024-11-06 20:01:43,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9216 states, 9215 states have (on average 1.0493760173629951) internal successors, (9670), 9215 states have internal predecessors, (9670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:43,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9216 states to 9216 states and 9670 transitions. [2024-11-06 20:01:43,867 INFO L78 Accepts]: Start accepts. Automaton has 9216 states and 9670 transitions. Word has length 513 [2024-11-06 20:01:43,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:43,868 INFO L471 AbstractCegarLoop]: Abstraction has 9216 states and 9670 transitions. [2024-11-06 20:01:43,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.25) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:43,868 INFO L276 IsEmpty]: Start isEmpty. Operand 9216 states and 9670 transitions. [2024-11-06 20:01:43,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-06 20:01:43,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:43,871 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:43,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 20:01:43,872 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:43,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:43,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1297278532, now seen corresponding path program 1 times [2024-11-06 20:01:43,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:43,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032178425] [2024-11-06 20:01:43,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:43,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:44,070 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-06 20:01:44,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:44,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032178425] [2024-11-06 20:01:44,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032178425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:44,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:44,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:44,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824351094] [2024-11-06 20:01:44,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:44,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:44,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:44,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:44,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:44,072 INFO L87 Difference]: Start difference. First operand 9216 states and 9670 transitions. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:44,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:44,702 INFO L93 Difference]: Finished difference Result 21062 states and 22144 transitions. [2024-11-06 20:01:44,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:44,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 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 533 [2024-11-06 20:01:44,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:44,720 INFO L225 Difference]: With dead ends: 21062 [2024-11-06 20:01:44,720 INFO L226 Difference]: Without dead ends: 12177 [2024-11-06 20:01:44,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:44,729 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 190 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:44,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 38 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:01:44,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12177 states. [2024-11-06 20:01:44,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12177 to 11519. [2024-11-06 20:01:44,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11519 states, 11518 states have (on average 1.0467963188053482) internal successors, (12057), 11518 states have internal predecessors, (12057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11519 states to 11519 states and 12057 transitions. [2024-11-06 20:01:44,842 INFO L78 Accepts]: Start accepts. Automaton has 11519 states and 12057 transitions. Word has length 533 [2024-11-06 20:01:44,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:44,843 INFO L471 AbstractCegarLoop]: Abstraction has 11519 states and 12057 transitions. [2024-11-06 20:01:44,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:44,843 INFO L276 IsEmpty]: Start isEmpty. Operand 11519 states and 12057 transitions. [2024-11-06 20:01:44,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2024-11-06 20:01:44,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:44,846 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-06 20:01:44,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-06 20:01:44,847 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:44,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:44,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1351696355, now seen corresponding path program 1 times [2024-11-06 20:01:44,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:44,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080789279] [2024-11-06 20:01:44,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:44,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:45,293 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 538 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-06 20:01:45,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:45,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080789279] [2024-11-06 20:01:45,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080789279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:45,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:45,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:45,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690343220] [2024-11-06 20:01:45,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:45,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:01:45,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:45,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:01:45,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:01:45,295 INFO L87 Difference]: Start difference. First operand 11519 states and 12057 transitions. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:45,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:45,846 INFO L93 Difference]: Finished difference Result 23036 states and 24115 transitions. [2024-11-06 20:01:45,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:45,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 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 587 [2024-11-06 20:01:45,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:45,858 INFO L225 Difference]: With dead ends: 23036 [2024-11-06 20:01:45,858 INFO L226 Difference]: Without dead ends: 11848 [2024-11-06 20:01:45,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:01:45,867 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 268 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:45,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 113 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 20:01:45,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11848 states. [2024-11-06 20:01:45,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11848 to 11848. [2024-11-06 20:01:45,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11848 states, 11847 states have (on average 1.0456655693424495) internal successors, (12388), 11847 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:45,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11848 states to 11848 states and 12388 transitions. [2024-11-06 20:01:45,981 INFO L78 Accepts]: Start accepts. Automaton has 11848 states and 12388 transitions. Word has length 587 [2024-11-06 20:01:45,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:45,982 INFO L471 AbstractCegarLoop]: Abstraction has 11848 states and 12388 transitions. [2024-11-06 20:01:45,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:45,982 INFO L276 IsEmpty]: Start isEmpty. Operand 11848 states and 12388 transitions. [2024-11-06 20:01:45,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2024-11-06 20:01:45,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:45,987 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:45,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 20:01:45,987 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:45,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:45,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2067726543, now seen corresponding path program 1 times [2024-11-06 20:01:45,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:45,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123306418] [2024-11-06 20:01:45,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:45,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2024-11-06 20:01:46,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:46,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123306418] [2024-11-06 20:01:46,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123306418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:46,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:46,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:46,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574533527] [2024-11-06 20:01:46,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:46,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:46,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:46,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:46,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:46,262 INFO L87 Difference]: Start difference. First operand 11848 states and 12388 transitions. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:46,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:46,847 INFO L93 Difference]: Finished difference Result 23036 states and 24112 transitions. [2024-11-06 20:01:46,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:46,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 648 [2024-11-06 20:01:46,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:46,865 INFO L225 Difference]: With dead ends: 23036 [2024-11-06 20:01:46,865 INFO L226 Difference]: Without dead ends: 11848 [2024-11-06 20:01:46,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:46,874 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 312 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:46,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 427 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 20:01:46,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11848 states. [2024-11-06 20:01:46,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11848 to 10861. [2024-11-06 20:01:46,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10861 states, 10860 states have (on average 1.0427255985267034) internal successors, (11324), 10860 states have internal predecessors, (11324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:46,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10861 states to 10861 states and 11324 transitions. [2024-11-06 20:01:46,963 INFO L78 Accepts]: Start accepts. Automaton has 10861 states and 11324 transitions. Word has length 648 [2024-11-06 20:01:46,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:46,963 INFO L471 AbstractCegarLoop]: Abstraction has 10861 states and 11324 transitions. [2024-11-06 20:01:46,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:46,964 INFO L276 IsEmpty]: Start isEmpty. Operand 10861 states and 11324 transitions. [2024-11-06 20:01:46,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2024-11-06 20:01:46,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:46,972 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:46,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-06 20:01:46,973 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:46,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:46,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1580164344, now seen corresponding path program 1 times [2024-11-06 20:01:46,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:46,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755486885] [2024-11-06 20:01:46,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:46,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:47,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 865 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2024-11-06 20:01:47,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:47,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755486885] [2024-11-06 20:01:47,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755486885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:47,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:47,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:47,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812332072] [2024-11-06 20:01:47,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:47,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:47,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:47,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:47,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:47,320 INFO L87 Difference]: Start difference. First operand 10861 states and 11324 transitions. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:47,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:47,880 INFO L93 Difference]: Finished difference Result 24023 states and 25131 transitions. [2024-11-06 20:01:47,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:47,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 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 837 [2024-11-06 20:01:47,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:47,893 INFO L225 Difference]: With dead ends: 24023 [2024-11-06 20:01:47,893 INFO L226 Difference]: Without dead ends: 13822 [2024-11-06 20:01:47,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:47,903 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 192 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:47,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 443 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 20:01:47,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13822 states. [2024-11-06 20:01:47,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13822 to 13164. [2024-11-06 20:01:47,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.041555876319988) internal successors, (13710), 13163 states have internal predecessors, (13710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:47,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13710 transitions. [2024-11-06 20:01:47,997 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13710 transitions. Word has length 837 [2024-11-06 20:01:47,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:47,997 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13710 transitions. [2024-11-06 20:01:47,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:47,998 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13710 transitions. [2024-11-06 20:01:48,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 847 [2024-11-06 20:01:48,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:48,006 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:48,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-06 20:01:48,007 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:48,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:48,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1022116617, now seen corresponding path program 1 times [2024-11-06 20:01:48,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:48,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511680524] [2024-11-06 20:01:48,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:48,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:48,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 99 proven. 580 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2024-11-06 20:01:48,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:48,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511680524] [2024-11-06 20:01:48,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511680524] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:01:48,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716206234] [2024-11-06 20:01:48,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:48,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:01:48,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:01:48,771 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) [2024-11-06 20:01:48,774 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 [2024-11-06 20:01:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:48,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 20:01:48,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:01:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 923 trivial. 0 not checked. [2024-11-06 20:01:49,070 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:01:49,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716206234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:49,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:01:49,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-06 20:01:49,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952349271] [2024-11-06 20:01:49,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:49,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:49,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:49,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:49,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-06 20:01:49,072 INFO L87 Difference]: Start difference. First operand 13164 states and 13710 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:49,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:49,673 INFO L93 Difference]: Finished difference Result 30603 states and 31962 transitions. [2024-11-06 20:01:49,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:49,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 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 846 [2024-11-06 20:01:49,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:49,685 INFO L225 Difference]: With dead ends: 30603 [2024-11-06 20:01:49,685 INFO L226 Difference]: Without dead ends: 16454 [2024-11-06 20:01:49,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 850 GetRequests, 846 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-06 20:01:49,692 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 304 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:49,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 430 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 20:01:49,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16454 states. [2024-11-06 20:01:49,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16454 to 16125. [2024-11-06 20:01:49,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16125 states, 16124 states have (on average 1.0328702555197222) internal successors, (16654), 16124 states have internal predecessors, (16654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:49,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16125 states to 16125 states and 16654 transitions. [2024-11-06 20:01:49,803 INFO L78 Accepts]: Start accepts. Automaton has 16125 states and 16654 transitions. Word has length 846 [2024-11-06 20:01:49,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:49,803 INFO L471 AbstractCegarLoop]: Abstraction has 16125 states and 16654 transitions. [2024-11-06 20:01:49,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:49,803 INFO L276 IsEmpty]: Start isEmpty. Operand 16125 states and 16654 transitions. [2024-11-06 20:01:49,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1063 [2024-11-06 20:01:49,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:49,816 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-06 20:01:49,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 20:01:50,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-06 20:01:50,020 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:50,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:50,021 INFO L85 PathProgramCache]: Analyzing trace with hash -605319891, now seen corresponding path program 1 times [2024-11-06 20:01:50,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:50,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421135166] [2024-11-06 20:01:50,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:50,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:50,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1780 backedges. 660 proven. 784 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-06 20:01:50,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:50,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421135166] [2024-11-06 20:01:50,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421135166] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:01:50,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136825117] [2024-11-06 20:01:50,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:50,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:01:50,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:01:50,829 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) [2024-11-06 20:01:50,830 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 [2024-11-06 20:01:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:51,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 20:01:51,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:01:51,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1780 backedges. 1012 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2024-11-06 20:01:51,399 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:01:51,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136825117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:51,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:01:51,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-06 20:01:51,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262285380] [2024-11-06 20:01:51,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:51,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:51,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:51,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:51,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 20:01:51,401 INFO L87 Difference]: Start difference. First operand 16125 states and 16654 transitions. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:51,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:51,922 INFO L93 Difference]: Finished difference Result 31590 states and 32644 transitions. [2024-11-06 20:01:51,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:51,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1062 [2024-11-06 20:01:51,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:51,959 INFO L225 Difference]: With dead ends: 31590 [2024-11-06 20:01:51,959 INFO L226 Difference]: Without dead ends: 16125 [2024-11-06 20:01:51,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1066 GetRequests, 1062 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 20:01:51,968 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 94 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:51,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 377 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 20:01:51,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states. [2024-11-06 20:01:52,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 16125. [2024-11-06 20:01:52,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16125 states, 16124 states have (on average 1.0286529397171917) internal successors, (16586), 16124 states have internal predecessors, (16586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:52,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16125 states to 16125 states and 16586 transitions. [2024-11-06 20:01:52,067 INFO L78 Accepts]: Start accepts. Automaton has 16125 states and 16586 transitions. Word has length 1062 [2024-11-06 20:01:52,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:52,067 INFO L471 AbstractCegarLoop]: Abstraction has 16125 states and 16586 transitions. [2024-11-06 20:01:52,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:52,067 INFO L276 IsEmpty]: Start isEmpty. Operand 16125 states and 16586 transitions. [2024-11-06 20:01:52,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1120 [2024-11-06 20:01:52,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:52,080 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:52,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-06 20:01:52,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-06 20:01:52,281 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:52,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:52,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1791227076, now seen corresponding path program 1 times [2024-11-06 20:01:52,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:52,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254464584] [2024-11-06 20:01:52,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:52,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:52,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2442 backedges. 1730 proven. 0 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2024-11-06 20:01:52,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:52,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254464584] [2024-11-06 20:01:52,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254464584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:52,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:52,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:52,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530995957] [2024-11-06 20:01:52,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:52,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:52,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:52,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:52,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:52,725 INFO L87 Difference]: Start difference. First operand 16125 states and 16586 transitions. Second operand has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:53,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:53,330 INFO L93 Difference]: Finished difference Result 31590 states and 32508 transitions. [2024-11-06 20:01:53,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:53,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 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 1119 [2024-11-06 20:01:53,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:53,344 INFO L225 Difference]: With dead ends: 31590 [2024-11-06 20:01:53,344 INFO L226 Difference]: Without dead ends: 16125 [2024-11-06 20:01:53,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:53,354 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 220 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:53,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 428 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 20:01:53,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states. [2024-11-06 20:01:53,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 14809. [2024-11-06 20:01:53,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14809 states, 14808 states have (on average 1.0228930307941653) internal successors, (15147), 14808 states have internal predecessors, (15147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:53,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14809 states to 14809 states and 15147 transitions. [2024-11-06 20:01:53,495 INFO L78 Accepts]: Start accepts. Automaton has 14809 states and 15147 transitions. Word has length 1119 [2024-11-06 20:01:53,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:53,495 INFO L471 AbstractCegarLoop]: Abstraction has 14809 states and 15147 transitions. [2024-11-06 20:01:53,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:53,496 INFO L276 IsEmpty]: Start isEmpty. Operand 14809 states and 15147 transitions. [2024-11-06 20:01:53,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1121 [2024-11-06 20:01:53,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:53,507 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:53,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-06 20:01:53,507 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:53,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:53,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1514156587, now seen corresponding path program 1 times [2024-11-06 20:01:53,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:53,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065475779] [2024-11-06 20:01:53,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:53,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2448 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2024-11-06 20:01:53,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:53,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065475779] [2024-11-06 20:01:53,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065475779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:53,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:53,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:53,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517619976] [2024-11-06 20:01:53,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:53,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:53,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:53,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:53,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:53,906 INFO L87 Difference]: Start difference. First operand 14809 states and 15147 transitions. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:54,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:54,445 INFO L93 Difference]: Finished difference Result 32248 states and 33030 transitions. [2024-11-06 20:01:54,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:54,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 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 1120 [2024-11-06 20:01:54,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:54,459 INFO L225 Difference]: With dead ends: 32248 [2024-11-06 20:01:54,459 INFO L226 Difference]: Without dead ends: 15796 [2024-11-06 20:01:54,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:54,468 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 274 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:54,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 411 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 20:01:54,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15796 states. [2024-11-06 20:01:54,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 13164. [2024-11-06 20:01:54,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.0198283066170326) internal successors, (13424), 13163 states have internal predecessors, (13424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:54,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13424 transitions. [2024-11-06 20:01:54,551 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13424 transitions. Word has length 1120 [2024-11-06 20:01:54,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:54,551 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13424 transitions. [2024-11-06 20:01:54,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:54,551 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13424 transitions. [2024-11-06 20:01:54,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1376 [2024-11-06 20:01:54,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:54,565 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:54,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-06 20:01:54,566 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:54,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:54,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1199493019, now seen corresponding path program 1 times [2024-11-06 20:01:54,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:54,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669177582] [2024-11-06 20:01:54,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:54,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:55,381 INFO L134 CoverageAnalysis]: Checked inductivity of 3942 backedges. 2413 proven. 0 refuted. 0 times theorem prover too weak. 1529 trivial. 0 not checked. [2024-11-06 20:01:55,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:55,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669177582] [2024-11-06 20:01:55,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669177582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:55,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:55,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:01:55,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161388966] [2024-11-06 20:01:55,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:55,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:01:55,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:55,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:01:55,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:55,383 INFO L87 Difference]: Start difference. First operand 13164 states and 13424 transitions. Second operand has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:55,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:55,894 INFO L93 Difference]: Finished difference Result 26326 states and 26850 transitions. [2024-11-06 20:01:55,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:01:55,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 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 1375 [2024-11-06 20:01:55,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:55,904 INFO L225 Difference]: With dead ends: 26326 [2024-11-06 20:01:55,904 INFO L226 Difference]: Without dead ends: 13822 [2024-11-06 20:01:55,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:01:55,911 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 224 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:55,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 430 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 20:01:55,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13822 states. [2024-11-06 20:01:55,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13822 to 13822. [2024-11-06 20:01:55,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13822 states, 13821 states have (on average 1.0191737211489762) internal successors, (14086), 13821 states have internal predecessors, (14086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:55,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13822 states to 13822 states and 14086 transitions. [2024-11-06 20:01:55,984 INFO L78 Accepts]: Start accepts. Automaton has 13822 states and 14086 transitions. Word has length 1375 [2024-11-06 20:01:55,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:55,985 INFO L471 AbstractCegarLoop]: Abstraction has 13822 states and 14086 transitions. [2024-11-06 20:01:55,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:55,985 INFO L276 IsEmpty]: Start isEmpty. Operand 13822 states and 14086 transitions. [2024-11-06 20:01:55,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1414 [2024-11-06 20:01:55,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:55,998 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-06 20:01:55,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-06 20:01:55,998 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:55,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:55,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1468761459, now seen corresponding path program 1 times [2024-11-06 20:01:55,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:55,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959612222] [2024-11-06 20:01:55,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:55,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:57,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3703 backedges. 2644 proven. 0 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2024-11-06 20:01:57,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:57,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959612222] [2024-11-06 20:01:57,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959612222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:57,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:57,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 20:01:57,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092324918] [2024-11-06 20:01:57,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:57,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 20:01:57,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:57,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 20:01:57,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-06 20:01:57,095 INFO L87 Difference]: Start difference. First operand 13822 states and 14086 transitions. Second operand has 6 states, 6 states have (on average 122.33333333333333) internal successors, (734), 6 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:57,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:57,890 INFO L93 Difference]: Finished difference Result 26985 states and 27509 transitions. [2024-11-06 20:01:57,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 20:01:57,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 122.33333333333333) internal successors, (734), 6 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1413 [2024-11-06 20:01:57,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:57,903 INFO L225 Difference]: With dead ends: 26985 [2024-11-06 20:01:57,903 INFO L226 Difference]: Without dead ends: 13823 [2024-11-06 20:01:57,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:01:57,910 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 357 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:57,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 556 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:01:57,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13823 states. [2024-11-06 20:01:57,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13823 to 13822. [2024-11-06 20:01:57,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13822 states, 13821 states have (on average 1.0188843064901236) internal successors, (14082), 13821 states have internal predecessors, (14082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:57,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13822 states to 13822 states and 14082 transitions. [2024-11-06 20:01:57,992 INFO L78 Accepts]: Start accepts. Automaton has 13822 states and 14082 transitions. Word has length 1413 [2024-11-06 20:01:57,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:57,993 INFO L471 AbstractCegarLoop]: Abstraction has 13822 states and 14082 transitions. [2024-11-06 20:01:57,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.33333333333333) internal successors, (734), 6 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:57,993 INFO L276 IsEmpty]: Start isEmpty. Operand 13822 states and 14082 transitions. [2024-11-06 20:01:58,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2024-11-06 20:01:58,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:58,006 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-06 20:01:58,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-06 20:01:58,006 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:58,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:58,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1417962965, now seen corresponding path program 1 times [2024-11-06 20:01:58,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:58,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843569530] [2024-11-06 20:01:58,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:58,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:01:58,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3584 backedges. 2562 proven. 0 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2024-11-06 20:01:58,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:01:58,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843569530] [2024-11-06 20:01:58,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843569530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:01:58,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:01:58,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 20:01:58,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666357488] [2024-11-06 20:01:58,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:01:58,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:01:58,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:01:58,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:01:58,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:01:58,999 INFO L87 Difference]: Start difference. First operand 13822 states and 14082 transitions. Second operand has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:59,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:01:59,681 INFO L93 Difference]: Finished difference Result 26994 states and 27510 transitions. [2024-11-06 20:01:59,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 20:01:59,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 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 1427 [2024-11-06 20:01:59,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:01:59,696 INFO L225 Difference]: With dead ends: 26994 [2024-11-06 20:01:59,696 INFO L226 Difference]: Without dead ends: 13832 [2024-11-06 20:01:59,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 20:01:59,704 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 217 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:01:59,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 436 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:01:59,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13832 states. [2024-11-06 20:01:59,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13832 to 13822. [2024-11-06 20:01:59,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13822 states, 13821 states have (on average 1.0185948918312713) internal successors, (14078), 13821 states have internal predecessors, (14078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:59,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13822 states to 13822 states and 14078 transitions. [2024-11-06 20:01:59,868 INFO L78 Accepts]: Start accepts. Automaton has 13822 states and 14078 transitions. Word has length 1427 [2024-11-06 20:01:59,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:01:59,868 INFO L471 AbstractCegarLoop]: Abstraction has 13822 states and 14078 transitions. [2024-11-06 20:01:59,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:01:59,868 INFO L276 IsEmpty]: Start isEmpty. Operand 13822 states and 14078 transitions. [2024-11-06 20:01:59,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1430 [2024-11-06 20:01:59,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:01:59,882 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:01:59,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-06 20:01:59,882 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:01:59,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:01:59,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1445489972, now seen corresponding path program 1 times [2024-11-06 20:01:59,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:01:59,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963367702] [2024-11-06 20:01:59,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:01:59,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:01:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:00,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3937 backedges. 1190 proven. 19 refuted. 0 times theorem prover too weak. 2728 trivial. 0 not checked. [2024-11-06 20:02:00,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:00,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963367702] [2024-11-06 20:02:00,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963367702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:02:00,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440529720] [2024-11-06 20:02:00,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:00,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:02:00,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:02:00,474 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) [2024-11-06 20:02:00,475 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 [2024-11-06 20:02:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:00,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 1655 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 20:02:00,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:02:01,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3937 backedges. 1176 proven. 0 refuted. 0 times theorem prover too weak. 2761 trivial. 0 not checked. [2024-11-06 20:02:01,023 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:02:01,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440529720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:01,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:02:01,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-06 20:02:01,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234850833] [2024-11-06 20:02:01,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:01,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:01,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:01,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:01,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-06 20:02:01,025 INFO L87 Difference]: Start difference. First operand 13822 states and 14078 transitions. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:01,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:01,602 INFO L93 Difference]: Finished difference Result 26982 states and 27491 transitions. [2024-11-06 20:02:01,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:01,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 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 1429 [2024-11-06 20:02:01,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:01,604 INFO L225 Difference]: With dead ends: 26982 [2024-11-06 20:02:01,604 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 20:02:01,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1433 GetRequests, 1429 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-06 20:02:01,612 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 192 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:01,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 49 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 20:02:01,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 20:02:01,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 20:02:01,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:01,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 20:02:01,613 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1429 [2024-11-06 20:02:01,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:01,613 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 20:02:01,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:02:01,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 20:02:01,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 20:02:01,616 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 20:02:01,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-06 20:02:01,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:02:01,819 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:01,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 20:02:02,579 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 20:02:02,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:02:02 BoogieIcfgContainer [2024-11-06 20:02:02,597 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 20:02:02,597 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 20:02:02,597 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 20:02:02,597 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 20:02:02,598 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:01:31" (3/4) ... [2024-11-06 20:02:02,600 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-06 20:02:02,621 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-06 20:02:02,622 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-06 20:02:02,624 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-06 20:02:02,625 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-06 20:02:02,748 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-06 20:02:02,748 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-06 20:02:02,748 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 20:02:02,749 INFO L158 Benchmark]: Toolchain (without parser) took 33685.42ms. Allocated memory was 100.7MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 71.7MB in the beginning and 957.9MB in the end (delta: -886.3MB). Peak memory consumption was 740.6MB. Max. memory is 16.1GB. [2024-11-06 20:02:02,749 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 20:02:02,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.17ms. Allocated memory is still 100.7MB. Free memory was 71.5MB in the beginning and 51.2MB in the end (delta: 20.3MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2024-11-06 20:02:02,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.13ms. Allocated memory is still 100.7MB. Free memory was 51.2MB in the beginning and 59.5MB in the end (delta: -8.3MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2024-11-06 20:02:02,750 INFO L158 Benchmark]: Boogie Preprocessor took 143.38ms. Allocated memory is still 100.7MB. Free memory was 59.5MB in the beginning and 51.5MB in the end (delta: 8.0MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2024-11-06 20:02:02,750 INFO L158 Benchmark]: RCFGBuilder took 1679.90ms. Allocated memory was 100.7MB in the beginning and 176.2MB in the end (delta: 75.5MB). Free memory was 51.5MB in the beginning and 82.2MB in the end (delta: -30.7MB). Peak memory consumption was 97.2MB. Max. memory is 16.1GB. [2024-11-06 20:02:02,750 INFO L158 Benchmark]: TraceAbstraction took 31089.35ms. Allocated memory was 176.2MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 82.2MB in the beginning and 983.1MB in the end (delta: -900.9MB). Peak memory consumption was 654.5MB. Max. memory is 16.1GB. [2024-11-06 20:02:02,750 INFO L158 Benchmark]: Witness Printer took 151.20ms. Allocated memory is still 1.7GB. Free memory was 983.1MB in the beginning and 957.9MB in the end (delta: 25.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-06 20:02:02,751 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 494.17ms. Allocated memory is still 100.7MB. Free memory was 71.5MB in the beginning and 51.2MB in the end (delta: 20.3MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 122.13ms. Allocated memory is still 100.7MB. Free memory was 51.2MB in the beginning and 59.5MB in the end (delta: -8.3MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 143.38ms. Allocated memory is still 100.7MB. Free memory was 59.5MB in the beginning and 51.5MB in the end (delta: 8.0MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1679.90ms. Allocated memory was 100.7MB in the beginning and 176.2MB in the end (delta: 75.5MB). Free memory was 51.5MB in the beginning and 82.2MB in the end (delta: -30.7MB). Peak memory consumption was 97.2MB. Max. memory is 16.1GB. * TraceAbstraction took 31089.35ms. Allocated memory was 176.2MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 82.2MB in the beginning and 983.1MB in the end (delta: -900.9MB). Peak memory consumption was 654.5MB. Max. memory is 16.1GB. * Witness Printer took 151.20ms. Allocated memory is still 1.7GB. Free memory was 983.1MB in the beginning and 957.9MB in the end (delta: 25.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 122]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.3s, OverallIterations: 21, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 16.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5222 SdHoareTripleChecker+Valid, 15.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5222 mSDsluCounter, 6379 SdHoareTripleChecker+Invalid, 12.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 323 mSDsCounter, 2821 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20572 IncrementalHoareTripleChecker+Invalid, 23393 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2821 mSolverCounterUnsat, 6056 mSDtfsCounter, 20572 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3411 GetRequests, 3367 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16125occurred in iteration=14, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 21 MinimizatonAttempts, 8565 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 18180 NumberOfCodeBlocks, 18180 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 18156 ConstructedInterpolants, 0 QuantifiedInterpolants, 43737 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3862 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 24 InterpolantComputations, 21 PerfectInterpolantSequences, 32259/33642 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1783]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((a16 == 9) && (7 == a12)) || (((a16 == 8) && (5 == a12)) && (a15 == 3))) || (((((0 <= ((long long) 87 + a18)) && (10 <= a16)) && (5 == a12)) && (a16 <= 11)) && (a15 == 3))) || (((a16 == 9) && (a12 == 6)) && (4 <= a15))) || (((a12 == 9) && (a15 <= 3)) && (a16 == 12))) || ((a12 == 9) && (a16 == 9))) || (((a16 == 8) && (a15 == 4)) && (7 == a12))) || ((a16 <= 8) && (a12 == 9))) || (((a15 <= 3) && (a16 <= 11)) && (7 == a12))) || ((a16 <= 8) && (a12 == 6))) || ((((a15 <= 3) && (a12 == 8)) && (10 <= a16)) && (a16 <= 11))) || (((a12 == 9) && (a15 <= 3)) && (a16 <= 11))) || ((((a12 <= 5) && (10 <= a16)) && (a16 <= 11)) && (4 <= a15))) || ((((0 <= ((long long) 87 + a18)) && (a15 <= 3)) && (a12 == 6)) && (a16 == 12))) || ((a16 == 9) && (a12 == 8))) || (((10 <= a16) && (a12 == 6)) && (a16 <= 11))) || (((a15 <= 3) && (a16 == 12)) && (7 == a12))) || (((a16 <= 8) && (0 <= ((long long) 87 + a18))) && (a12 == 8))) || (((a16 == 9) && (5 == a12)) && (a15 == 3))) || ((((a16 <= 8) && (0 <= ((long long) 87 + a18))) && (a15 <= 3)) && (7 <= a12))) || (((a16 == 8) && (a15 == 4)) && (5 == a12))) || (((a15 <= 3) && (a12 == 8)) && (a16 == 12))) || ((((a16 <= 8) && (a12 == 8)) && (((long long) a18 + 156) <= 0)) && (4 <= a15))) || (((a16 == 12) && (5 == a12)) && (a15 == 3))) || (((a12 <= 5) && (a16 == 9)) && (4 <= a15))) RESULT: Ultimate proved your program to be correct! [2024-11-06 20:02:02,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE