./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.1.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.1.prop1-func-interl.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', 'aaf36323b665206e30da45bccd432ddbe4c6e86ee22fad4b00b92ff40b799b0e'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.1.prop1-func-interl.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash aaf36323b665206e30da45bccd432ddbe4c6e86ee22fad4b00b92ff40b799b0e --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 03:12:27,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 03:12:27,564 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 03:12:27,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 03:12:27,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 03:12:27,588 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 03:12:27,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 03:12:27,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 03:12:27,590 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 03:12:27,591 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 03:12:27,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 03:12:27,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 03:12:27,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 03:12:27,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 03:12:27,592 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 03:12:27,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 03:12:27,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 03:12:27,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 03:12:27,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 03:12:27,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 03:12:27,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 03:12:27,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 03:12:27,593 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 03:12:27,593 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 03:12:27,593 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 03:12:27,593 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 03:12:27,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 03:12:27,593 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 03:12:27,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 03:12:27,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:12:27,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 03:12:27,594 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 03:12:27,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 03:12:27,594 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 03:12:27,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 03:12:27,595 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 03:12:27,595 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 03:12:27,595 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 03:12:27,595 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 03:12:27,595 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaf36323b665206e30da45bccd432ddbe4c6e86ee22fad4b00b92ff40b799b0e [2024-11-07 03:12:27,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 03:12:27,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 03:12:27,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 03:12:27,850 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 03:12:27,853 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 03:12:27,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.1.prop1-func-interl.c [2024-11-07 03:12:29,065 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 03:12:29,415 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 03:12:29,415 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.1.prop1-func-interl.c [2024-11-07 03:12:29,430 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/405a8a92d/b371bde828c54835aaa93b37537b06f5/FLAG20cb0b7b3 [2024-11-07 03:12:29,638 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/405a8a92d/b371bde828c54835aaa93b37537b06f5 [2024-11-07 03:12:29,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 03:12:29,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 03:12:29,645 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 03:12:29,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 03:12:29,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 03:12:29,652 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:12:29" (1/1) ... [2024-11-07 03:12:29,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4411e3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:29, skipping insertion in model container [2024-11-07 03:12:29,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:12:29" (1/1) ... [2024-11-07 03:12:29,740 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 03:12:29,922 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.1.prop1-func-interl.c[1172,1185] [2024-11-07 03:12:30,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:12:30,387 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 03:12:30,395 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.1.prop1-func-interl.c[1172,1185] [2024-11-07 03:12:30,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:12:30,648 INFO L204 MainTranslator]: Completed translation [2024-11-07 03:12:30,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:30 WrapperNode [2024-11-07 03:12:30,657 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 03:12:30,658 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 03:12:30,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 03:12:30,658 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 03:12:30,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:30" (1/1) ... [2024-11-07 03:12:30,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:30" (1/1) ... [2024-11-07 03:12:32,151 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 13866 [2024-11-07 03:12:32,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 03:12:32,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 03:12:32,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 03:12:32,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 03:12:32,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:30" (1/1) ... [2024-11-07 03:12:32,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:30" (1/1) ... [2024-11-07 03:12:32,491 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:30" (1/1) ... [2024-11-07 03:12:32,975 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 03:12:32,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:30" (1/1) ... [2024-11-07 03:12:32,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:30" (1/1) ... [2024-11-07 03:12:33,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:30" (1/1) ... [2024-11-07 03:12:33,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:30" (1/1) ... [2024-11-07 03:12:33,556 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:30" (1/1) ... [2024-11-07 03:12:33,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:30" (1/1) ... [2024-11-07 03:12:33,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 03:12:33,795 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 03:12:33,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 03:12:33,795 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 03:12:33,796 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:30" (1/1) ... [2024-11-07 03:12:33,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:12:33,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:12:33,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 03:12:33,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 03:12:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 03:12:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 03:12:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 03:12:33,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 03:12:34,468 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 03:12:34,470 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 03:12:56,246 INFO L? ?]: Removed 7836 outVars from TransFormulas that were not future-live. [2024-11-07 03:12:56,247 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 03:12:56,325 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 03:12:56,325 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 03:12:56,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:12:56 BoogieIcfgContainer [2024-11-07 03:12:56,326 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 03:12:56,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 03:12:56,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 03:12:56,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 03:12:56,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:12:29" (1/3) ... [2024-11-07 03:12:56,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a72e61e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:12:56, skipping insertion in model container [2024-11-07 03:12:56,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:12:30" (2/3) ... [2024-11-07 03:12:56,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a72e61e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:12:56, skipping insertion in model container [2024-11-07 03:12:56,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:12:56" (3/3) ... [2024-11-07 03:12:56,334 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.msmie.1.prop1-func-interl.c [2024-11-07 03:12:56,346 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 03:12:56,346 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 03:12:56,476 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 03:12:56,488 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;@631407d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 03:12:56,489 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 03:12:56,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 4946 states, 4944 states have (on average 1.5002022653721683) internal successors, (7417), 4945 states have internal predecessors, (7417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:12:56,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-07 03:12:56,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:12:56,527 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:12:56,528 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:12:56,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:12:56,533 INFO L85 PathProgramCache]: Analyzing trace with hash 172827951, now seen corresponding path program 1 times [2024-11-07 03:12:56,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:12:56,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066704679] [2024-11-07 03:12:56,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:12:56,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:12:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:12:58,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:12:58,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:12:58,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066704679] [2024-11-07 03:12:58,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066704679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:12:58,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:12:58,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:12:58,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461550381] [2024-11-07 03:12:58,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:12:58,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:12:58,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:12:58,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:12:58,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:12:58,220 INFO L87 Difference]: Start difference. First operand has 4946 states, 4944 states have (on average 1.5002022653721683) internal successors, (7417), 4945 states have internal predecessors, (7417), 0 states have call successors, (0), 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 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:03,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:13:03,072 INFO L93 Difference]: Finished difference Result 14448 states and 21673 transitions. [2024-11-07 03:13:03,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:13:03,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 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 225 [2024-11-07 03:13:03,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:13:03,117 INFO L225 Difference]: With dead ends: 14448 [2024-11-07 03:13:03,120 INFO L226 Difference]: Without dead ends: 9688 [2024-11-07 03:13:03,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:13:03,137 INFO L432 NwaCegarLoop]: 5777 mSDtfsCounter, 7178 mSDsluCounter, 17209 mSDsCounter, 0 mSdLazyCounter, 6389 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7178 SdHoareTripleChecker+Valid, 22986 SdHoareTripleChecker+Invalid, 6390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-07 03:13:03,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7178 Valid, 22986 Invalid, 6390 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 6389 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-07 03:13:03,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9688 states. [2024-11-07 03:13:03,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9688 to 5190. [2024-11-07 03:13:03,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5190 states, 5189 states have (on average 1.4997109269608788) internal successors, (7782), 5189 states have internal predecessors, (7782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:03,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5190 states to 5190 states and 7782 transitions. [2024-11-07 03:13:03,373 INFO L78 Accepts]: Start accepts. Automaton has 5190 states and 7782 transitions. Word has length 225 [2024-11-07 03:13:03,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:13:03,377 INFO L471 AbstractCegarLoop]: Abstraction has 5190 states and 7782 transitions. [2024-11-07 03:13:03,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:03,377 INFO L276 IsEmpty]: Start isEmpty. Operand 5190 states and 7782 transitions. [2024-11-07 03:13:03,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-07 03:13:03,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:13:03,383 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:13:03,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 03:13:03,384 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:13:03,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:13:03,384 INFO L85 PathProgramCache]: Analyzing trace with hash 157011628, now seen corresponding path program 1 times [2024-11-07 03:13:03,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:13:03,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75990948] [2024-11-07 03:13:03,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:13:03,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:13:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:13:03,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:13:03,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:13:03,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75990948] [2024-11-07 03:13:03,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75990948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:13:03,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:13:03,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:13:03,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72629742] [2024-11-07 03:13:03,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:13:03,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:13:03,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:13:03,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:13:03,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:13:03,999 INFO L87 Difference]: Start difference. First operand 5190 states and 7782 transitions. Second operand has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:04,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:13:04,073 INFO L93 Difference]: Finished difference Result 5194 states and 7786 transitions. [2024-11-07 03:13:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:13:04,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 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 227 [2024-11-07 03:13:04,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:13:04,089 INFO L225 Difference]: With dead ends: 5194 [2024-11-07 03:13:04,089 INFO L226 Difference]: Without dead ends: 5192 [2024-11-07 03:13:04,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:13:04,091 INFO L432 NwaCegarLoop]: 7411 mSDtfsCounter, 0 mSDsluCounter, 14816 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22227 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:13:04,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22227 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:13:04,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5192 states. [2024-11-07 03:13:04,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5192 to 5192. [2024-11-07 03:13:04,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 1.499518397225968) internal successors, (7784), 5191 states have internal predecessors, (7784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:04,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 7784 transitions. [2024-11-07 03:13:04,178 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 7784 transitions. Word has length 227 [2024-11-07 03:13:04,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:13:04,180 INFO L471 AbstractCegarLoop]: Abstraction has 5192 states and 7784 transitions. [2024-11-07 03:13:04,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:04,181 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 7784 transitions. [2024-11-07 03:13:04,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-07 03:13:04,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:13:04,184 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:13:04,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 03:13:04,185 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:13:04,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:13:04,189 INFO L85 PathProgramCache]: Analyzing trace with hash 574089755, now seen corresponding path program 1 times [2024-11-07 03:13:04,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:13:04,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642910082] [2024-11-07 03:13:04,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:13:04,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:13:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:13:04,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:13:04,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:13:04,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642910082] [2024-11-07 03:13:04,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642910082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:13:04,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:13:04,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:13:04,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711708189] [2024-11-07 03:13:04,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:13:04,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:13:04,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:13:04,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:13:04,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:13:04,581 INFO L87 Difference]: Start difference. First operand 5192 states and 7784 transitions. Second operand has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:04,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:13:04,700 INFO L93 Difference]: Finished difference Result 9953 states and 14924 transitions. [2024-11-07 03:13:04,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:13:04,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 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 228 [2024-11-07 03:13:04,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:13:04,722 INFO L225 Difference]: With dead ends: 9953 [2024-11-07 03:13:04,722 INFO L226 Difference]: Without dead ends: 5194 [2024-11-07 03:13:04,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:13:04,733 INFO L432 NwaCegarLoop]: 7411 mSDtfsCounter, 0 mSDsluCounter, 14812 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22223 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:13:04,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22223 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:13:04,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5194 states. [2024-11-07 03:13:04,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5194 to 5194. [2024-11-07 03:13:04,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5194 states, 5193 states have (on average 1.4993260157904873) internal successors, (7786), 5193 states have internal predecessors, (7786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:04,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5194 states to 5194 states and 7786 transitions. [2024-11-07 03:13:04,857 INFO L78 Accepts]: Start accepts. Automaton has 5194 states and 7786 transitions. Word has length 228 [2024-11-07 03:13:04,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:13:04,857 INFO L471 AbstractCegarLoop]: Abstraction has 5194 states and 7786 transitions. [2024-11-07 03:13:04,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:04,859 INFO L276 IsEmpty]: Start isEmpty. Operand 5194 states and 7786 transitions. [2024-11-07 03:13:04,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-07 03:13:04,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:13:04,864 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:13:04,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 03:13:04,864 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:13:04,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:13:04,866 INFO L85 PathProgramCache]: Analyzing trace with hash -481051291, now seen corresponding path program 1 times [2024-11-07 03:13:04,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:13:04,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202631331] [2024-11-07 03:13:04,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:13:04,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:13:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:13:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:13:05,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:13:05,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202631331] [2024-11-07 03:13:05,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202631331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:13:05,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:13:05,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:13:05,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735718875] [2024-11-07 03:13:05,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:13:05,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:13:05,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:13:05,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:13:05,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:13:05,313 INFO L87 Difference]: Start difference. First operand 5194 states and 7786 transitions. Second operand has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:05,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:13:05,497 INFO L93 Difference]: Finished difference Result 13571 states and 20348 transitions. [2024-11-07 03:13:05,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:13:05,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 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 229 [2024-11-07 03:13:05,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:13:05,528 INFO L225 Difference]: With dead ends: 13571 [2024-11-07 03:13:05,529 INFO L226 Difference]: Without dead ends: 8810 [2024-11-07 03:13:05,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:13:05,537 INFO L432 NwaCegarLoop]: 7405 mSDtfsCounter, 5853 mSDsluCounter, 29331 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5853 SdHoareTripleChecker+Valid, 36736 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:13:05,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5853 Valid, 36736 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:13:05,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8810 states. [2024-11-07 03:13:05,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8810 to 5197. [2024-11-07 03:13:05,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 5196 states have (on average 1.4990377213240955) internal successors, (7789), 5196 states have internal predecessors, (7789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:05,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 7789 transitions. [2024-11-07 03:13:05,675 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 7789 transitions. Word has length 229 [2024-11-07 03:13:05,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:13:05,676 INFO L471 AbstractCegarLoop]: Abstraction has 5197 states and 7789 transitions. [2024-11-07 03:13:05,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:05,677 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 7789 transitions. [2024-11-07 03:13:05,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2607 [2024-11-07 03:13:05,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:13:05,813 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:13:05,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 03:13:05,813 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:13:05,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:13:05,814 INFO L85 PathProgramCache]: Analyzing trace with hash 69127097, now seen corresponding path program 1 times [2024-11-07 03:13:05,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:13:05,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663625696] [2024-11-07 03:13:05,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:13:05,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:13:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:13:12,623 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:13:12,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:13:12,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663625696] [2024-11-07 03:13:12,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663625696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:13:12,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:13:12,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:13:12,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355858008] [2024-11-07 03:13:12,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:13:12,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:13:12,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:13:12,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:13:12,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:13:12,631 INFO L87 Difference]: Start difference. First operand 5197 states and 7789 transitions. Second operand has 4 states, 4 states have (on average 651.5) internal successors, (2606), 4 states have internal predecessors, (2606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:12,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:13:12,759 INFO L93 Difference]: Finished difference Result 9958 states and 14928 transitions. [2024-11-07 03:13:12,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:13:12,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 651.5) internal successors, (2606), 4 states have internal predecessors, (2606), 0 states have call successors, (0), 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 2606 [2024-11-07 03:13:12,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:13:12,769 INFO L225 Difference]: With dead ends: 9958 [2024-11-07 03:13:12,769 INFO L226 Difference]: Without dead ends: 5197 [2024-11-07 03:13:12,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:13:12,776 INFO L432 NwaCegarLoop]: 7400 mSDtfsCounter, 7185 mSDsluCounter, 7398 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7185 SdHoareTripleChecker+Valid, 14798 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:13:12,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7185 Valid, 14798 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:13:12,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5197 states. [2024-11-07 03:13:12,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5197 to 5197. [2024-11-07 03:13:12,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 5196 states have (on average 1.4988452655889146) internal successors, (7788), 5196 states have internal predecessors, (7788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:12,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 7788 transitions. [2024-11-07 03:13:12,870 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 7788 transitions. Word has length 2606 [2024-11-07 03:13:12,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:13:12,872 INFO L471 AbstractCegarLoop]: Abstraction has 5197 states and 7788 transitions. [2024-11-07 03:13:12,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 651.5) internal successors, (2606), 4 states have internal predecessors, (2606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:12,873 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 7788 transitions. [2024-11-07 03:13:12,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2608 [2024-11-07 03:13:12,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:13:12,946 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:13:12,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 03:13:12,946 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:13:12,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:13:12,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1591290855, now seen corresponding path program 1 times [2024-11-07 03:13:12,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:13:12,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984229084] [2024-11-07 03:13:12,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:13:12,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:13:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:13:17,231 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:13:17,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:13:17,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984229084] [2024-11-07 03:13:17,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984229084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:13:17,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:13:17,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:13:17,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449560570] [2024-11-07 03:13:17,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:13:17,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:13:17,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:13:17,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:13:17,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:13:17,238 INFO L87 Difference]: Start difference. First operand 5197 states and 7788 transitions. Second operand has 4 states, 4 states have (on average 651.75) internal successors, (2607), 4 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:17,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:13:17,369 INFO L93 Difference]: Finished difference Result 9958 states and 14926 transitions. [2024-11-07 03:13:17,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:13:17,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 651.75) internal successors, (2607), 4 states have internal predecessors, (2607), 0 states have call successors, (0), 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 2607 [2024-11-07 03:13:17,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:13:17,382 INFO L225 Difference]: With dead ends: 9958 [2024-11-07 03:13:17,382 INFO L226 Difference]: Without dead ends: 5197 [2024-11-07 03:13:17,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:13:17,391 INFO L432 NwaCegarLoop]: 7399 mSDtfsCounter, 7179 mSDsluCounter, 7397 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7179 SdHoareTripleChecker+Valid, 14796 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:13:17,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7179 Valid, 14796 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:13:17,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5197 states. [2024-11-07 03:13:17,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5197 to 5197. [2024-11-07 03:13:17,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 5196 states have (on average 1.4986528098537337) internal successors, (7787), 5196 states have internal predecessors, (7787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:17,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 7787 transitions. [2024-11-07 03:13:17,476 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 7787 transitions. Word has length 2607 [2024-11-07 03:13:17,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:13:17,476 INFO L471 AbstractCegarLoop]: Abstraction has 5197 states and 7787 transitions. [2024-11-07 03:13:17,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 651.75) internal successors, (2607), 4 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:17,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 7787 transitions. [2024-11-07 03:13:17,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2609 [2024-11-07 03:13:17,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:13:17,526 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:13:17,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 03:13:17,527 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:13:17,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:13:17,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1899355124, now seen corresponding path program 1 times [2024-11-07 03:13:17,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:13:17,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146439763] [2024-11-07 03:13:17,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:13:17,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:13:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:13:21,664 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:13:21,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:13:21,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146439763] [2024-11-07 03:13:21,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146439763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:13:21,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:13:21,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:13:21,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035726718] [2024-11-07 03:13:21,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:13:21,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:13:21,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:13:21,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:13:21,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:13:21,669 INFO L87 Difference]: Start difference. First operand 5197 states and 7787 transitions. Second operand has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:21,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:13:21,768 INFO L93 Difference]: Finished difference Result 9958 states and 14924 transitions. [2024-11-07 03:13:21,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:13:21,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 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 2608 [2024-11-07 03:13:21,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:13:21,779 INFO L225 Difference]: With dead ends: 9958 [2024-11-07 03:13:21,780 INFO L226 Difference]: Without dead ends: 5197 [2024-11-07 03:13:21,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:13:21,786 INFO L432 NwaCegarLoop]: 7395 mSDtfsCounter, 7169 mSDsluCounter, 7393 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7169 SdHoareTripleChecker+Valid, 14788 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:13:21,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7169 Valid, 14788 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:13:21,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5197 states. [2024-11-07 03:13:21,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5197 to 5197. [2024-11-07 03:13:21,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 5196 states have (on average 1.4984603541185528) internal successors, (7786), 5196 states have internal predecessors, (7786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:21,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 7786 transitions. [2024-11-07 03:13:21,899 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 7786 transitions. Word has length 2608 [2024-11-07 03:13:21,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:13:21,900 INFO L471 AbstractCegarLoop]: Abstraction has 5197 states and 7786 transitions. [2024-11-07 03:13:21,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:21,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 7786 transitions. [2024-11-07 03:13:21,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2610 [2024-11-07 03:13:21,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:13:21,933 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:13:21,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 03:13:21,933 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:13:21,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:13:21,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1446012326, now seen corresponding path program 1 times [2024-11-07 03:13:21,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:13:21,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783938730] [2024-11-07 03:13:21,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:13:21,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:13:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:13:25,986 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:13:25,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:13:25,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783938730] [2024-11-07 03:13:25,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783938730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:13:25,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:13:25,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:13:25,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053555467] [2024-11-07 03:13:25,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:13:25,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:13:25,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:13:25,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:13:25,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:13:25,995 INFO L87 Difference]: Start difference. First operand 5197 states and 7786 transitions. Second operand has 4 states, 4 states have (on average 652.25) internal successors, (2609), 4 states have internal predecessors, (2609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:26,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:13:26,161 INFO L93 Difference]: Finished difference Result 9958 states and 14922 transitions. [2024-11-07 03:13:26,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:13:26,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 652.25) internal successors, (2609), 4 states have internal predecessors, (2609), 0 states have call successors, (0), 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 2609 [2024-11-07 03:13:26,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:13:26,175 INFO L225 Difference]: With dead ends: 9958 [2024-11-07 03:13:26,175 INFO L226 Difference]: Without dead ends: 5197 [2024-11-07 03:13:26,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:13:26,183 INFO L432 NwaCegarLoop]: 7394 mSDtfsCounter, 7163 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7163 SdHoareTripleChecker+Valid, 14786 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:13:26,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7163 Valid, 14786 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:13:26,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5197 states. [2024-11-07 03:13:26,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5197 to 5197. [2024-11-07 03:13:26,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 5196 states have (on average 1.498267898383372) internal successors, (7785), 5196 states have internal predecessors, (7785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:26,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 7785 transitions. [2024-11-07 03:13:26,271 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 7785 transitions. Word has length 2609 [2024-11-07 03:13:26,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:13:26,272 INFO L471 AbstractCegarLoop]: Abstraction has 5197 states and 7785 transitions. [2024-11-07 03:13:26,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 652.25) internal successors, (2609), 4 states have internal predecessors, (2609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:26,273 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 7785 transitions. [2024-11-07 03:13:26,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2611 [2024-11-07 03:13:26,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:13:26,368 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:13:26,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 03:13:26,368 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:13:26,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:13:26,369 INFO L85 PathProgramCache]: Analyzing trace with hash -242426209, now seen corresponding path program 1 times [2024-11-07 03:13:26,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:13:26,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091366730] [2024-11-07 03:13:26,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:13:26,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:13:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:13:30,457 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-07 03:13:30,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:13:30,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091366730] [2024-11-07 03:13:30,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091366730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:13:30,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:13:30,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:13:30,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70968553] [2024-11-07 03:13:30,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:13:30,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:13:30,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:13:30,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:13:30,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:13:30,464 INFO L87 Difference]: Start difference. First operand 5197 states and 7785 transitions. Second operand has 4 states, 4 states have (on average 621.75) internal successors, (2487), 4 states have internal predecessors, (2487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:30,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:13:30,653 INFO L93 Difference]: Finished difference Result 9960 states and 14923 transitions. [2024-11-07 03:13:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:13:30,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 621.75) internal successors, (2487), 4 states have internal predecessors, (2487), 0 states have call successors, (0), 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 2610 [2024-11-07 03:13:30,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:13:30,663 INFO L225 Difference]: With dead ends: 9960 [2024-11-07 03:13:30,663 INFO L226 Difference]: Without dead ends: 5199 [2024-11-07 03:13:30,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:13:30,667 INFO L432 NwaCegarLoop]: 7409 mSDtfsCounter, 0 mSDsluCounter, 14799 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22208 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:13:30,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22208 Invalid, 23 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:13:30,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2024-11-07 03:13:30,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 5197. [2024-11-07 03:13:30,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 5196 states have (on average 1.498267898383372) internal successors, (7785), 5196 states have internal predecessors, (7785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:30,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 7785 transitions. [2024-11-07 03:13:30,705 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 7785 transitions. Word has length 2610 [2024-11-07 03:13:30,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:13:30,707 INFO L471 AbstractCegarLoop]: Abstraction has 5197 states and 7785 transitions. [2024-11-07 03:13:30,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 621.75) internal successors, (2487), 4 states have internal predecessors, (2487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:13:30,707 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 7785 transitions. [2024-11-07 03:13:30,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2612 [2024-11-07 03:13:30,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:13:30,738 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:13:30,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 03:13:30,738 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:13:30,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:13:30,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1983610344, now seen corresponding path program 1 times [2024-11-07 03:13:30,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:13:30,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660536419] [2024-11-07 03:13:30,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:13:30,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:13:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat