./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.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.brp.2.prop1-back-serstep.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', '2fa8a6df24cfb2e7fff9b36ae5a737f29c862e41a0d792285ba28246763fc717'] 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.brp.2.prop1-back-serstep.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 2fa8a6df24cfb2e7fff9b36ae5a737f29c862e41a0d792285ba28246763fc717 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 02:08:59,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 02:08:59,327 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 02:08:59,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 02:08:59,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 02:08:59,359 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 02:08:59,360 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 02:08:59,360 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 02:08:59,360 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 02:08:59,360 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 02:08:59,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 02:08:59,361 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 02:08:59,361 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 02:08:59,361 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 02:08:59,361 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 02:08:59,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 02:08:59,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 02:08:59,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 02:08:59,361 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 02:08:59,361 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 02:08:59,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 02:08:59,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 02:08:59,362 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 02:08:59,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 02:08:59,362 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 02:08:59,362 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 02:08:59,362 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 02:08:59,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 02:08:59,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 02:08:59,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:08:59,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 02:08:59,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 02:08:59,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 02:08:59,362 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 02:08:59,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 02:08:59,363 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 02:08:59,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 02:08:59,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 02:08:59,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 02:08:59,363 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 -> 2fa8a6df24cfb2e7fff9b36ae5a737f29c862e41a0d792285ba28246763fc717 [2024-11-07 02:08:59,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 02:08:59,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 02:08:59,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 02:08:59,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 02:08:59,721 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 02:08:59,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c [2024-11-07 02:09:01,100 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 02:09:01,423 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 02:09:01,425 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c [2024-11-07 02:09:01,448 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2ea7079ba/7f3c2574ed5648718258bc89ca62e0ee/FLAG372423dd5 [2024-11-07 02:09:01,473 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2ea7079ba/7f3c2574ed5648718258bc89ca62e0ee [2024-11-07 02:09:01,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 02:09:01,480 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 02:09:01,481 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 02:09:01,481 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 02:09:01,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 02:09:01,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:01" (1/1) ... [2024-11-07 02:09:01,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cae8483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:01, skipping insertion in model container [2024-11-07 02:09:01,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:01" (1/1) ... [2024-11-07 02:09:01,548 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 02:09:01,774 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.brp.2.prop1-back-serstep.c[1171,1184] [2024-11-07 02:09:02,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:09:02,250 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 02:09:02,259 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.brp.2.prop1-back-serstep.c[1171,1184] [2024-11-07 02:09:02,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:09:02,491 INFO L204 MainTranslator]: Completed translation [2024-11-07 02:09:02,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:02 WrapperNode [2024-11-07 02:09:02,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 02:09:02,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 02:09:02,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 02:09:02,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 02:09:02,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:02" (1/1) ... [2024-11-07 02:09:02,565 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:02" (1/1) ... [2024-11-07 02:09:03,479 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 9169 [2024-11-07 02:09:03,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 02:09:03,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 02:09:03,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 02:09:03,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 02:09:03,488 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:02" (1/1) ... [2024-11-07 02:09:03,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:02" (1/1) ... [2024-11-07 02:09:03,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:02" (1/1) ... [2024-11-07 02:09:04,060 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 02:09:04,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:02" (1/1) ... [2024-11-07 02:09:04,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:02" (1/1) ... [2024-11-07 02:09:04,555 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:02" (1/1) ... [2024-11-07 02:09:04,632 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:02" (1/1) ... [2024-11-07 02:09:04,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:02" (1/1) ... [2024-11-07 02:09:04,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:02" (1/1) ... [2024-11-07 02:09:05,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 02:09:05,009 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 02:09:05,009 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 02:09:05,009 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 02:09:05,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:02" (1/1) ... [2024-11-07 02:09:05,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:09:05,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:09:05,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 02:09:05,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 02:09:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 02:09:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 02:09:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 02:09:05,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 02:09:05,761 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 02:09:05,763 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 02:09:19,177 INFO L? ?]: Removed 5024 outVars from TransFormulas that were not future-live. [2024-11-07 02:09:19,177 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 02:09:19,250 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 02:09:19,251 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 02:09:19,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:09:19 BoogieIcfgContainer [2024-11-07 02:09:19,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 02:09:19,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 02:09:19,254 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 02:09:19,259 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 02:09:19,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:09:01" (1/3) ... [2024-11-07 02:09:19,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d044975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:09:19, skipping insertion in model container [2024-11-07 02:09:19,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:02" (2/3) ... [2024-11-07 02:09:19,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d044975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:09:19, skipping insertion in model container [2024-11-07 02:09:19,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:09:19" (3/3) ... [2024-11-07 02:09:19,262 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.brp.2.prop1-back-serstep.c [2024-11-07 02:09:19,276 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 02:09:19,277 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 02:09:19,417 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 02:09:19,430 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;@69f96ace, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 02:09:19,431 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 02:09:19,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 3198 states, 3196 states have (on average 1.4996871088861077) internal successors, (4793), 3197 states have internal predecessors, (4793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:19,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-11-07 02:09:19,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:19,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:19,485 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:19,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:19,491 INFO L85 PathProgramCache]: Analyzing trace with hash 652187712, now seen corresponding path program 1 times [2024-11-07 02:09:19,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:19,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414041561] [2024-11-07 02:09:19,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:19,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:21,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:09:21,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:21,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414041561] [2024-11-07 02:09:21,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414041561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:21,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:21,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:09:21,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645687316] [2024-11-07 02:09:21,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:21,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:09:21,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:21,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:09:21,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:21,409 INFO L87 Difference]: Start difference. First operand has 3198 states, 3196 states have (on average 1.4996871088861077) internal successors, (4793), 3197 states have internal predecessors, (4793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:21,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:21,703 INFO L93 Difference]: Finished difference Result 6237 states and 9351 transitions. [2024-11-07 02:09:21,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:21,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 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 321 [2024-11-07 02:09:21,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:21,745 INFO L225 Difference]: With dead ends: 6237 [2024-11-07 02:09:21,746 INFO L226 Difference]: Without dead ends: 3197 [2024-11-07 02:09:21,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:21,768 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 9568 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14355 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:21,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14355 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:21,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2024-11-07 02:09:21,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 3197. [2024-11-07 02:09:21,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3197 states, 3196 states have (on average 1.4990613266583228) internal successors, (4791), 3196 states have internal predecessors, (4791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:21,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 4791 transitions. [2024-11-07 02:09:21,933 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 4791 transitions. Word has length 321 [2024-11-07 02:09:21,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:21,937 INFO L471 AbstractCegarLoop]: Abstraction has 3197 states and 4791 transitions. [2024-11-07 02:09:21,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:21,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 4791 transitions. [2024-11-07 02:09:21,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-07 02:09:21,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:21,946 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:21,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 02:09:21,947 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:21,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:21,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1255320201, now seen corresponding path program 1 times [2024-11-07 02:09:21,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:21,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855544386] [2024-11-07 02:09:21,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:21,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:22,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:09:22,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:22,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855544386] [2024-11-07 02:09:22,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855544386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:22,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:22,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:09:22,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724237979] [2024-11-07 02:09:22,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:22,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:09:22,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:22,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:09:22,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:22,721 INFO L87 Difference]: Start difference. First operand 3197 states and 4791 transitions. Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:22,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:22,954 INFO L93 Difference]: Finished difference Result 6238 states and 9349 transitions. [2024-11-07 02:09:22,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:22,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 322 [2024-11-07 02:09:22,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:22,968 INFO L225 Difference]: With dead ends: 6238 [2024-11-07 02:09:22,969 INFO L226 Difference]: Without dead ends: 3199 [2024-11-07 02:09:22,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:22,973 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 9564 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14351 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:22,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14351 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:22,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3199 states. [2024-11-07 02:09:23,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3199 to 3199. [2024-11-07 02:09:23,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3199 states, 3198 states have (on average 1.4987492182614133) internal successors, (4793), 3198 states have internal predecessors, (4793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:23,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3199 states to 3199 states and 4793 transitions. [2024-11-07 02:09:23,046 INFO L78 Accepts]: Start accepts. Automaton has 3199 states and 4793 transitions. Word has length 322 [2024-11-07 02:09:23,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:23,048 INFO L471 AbstractCegarLoop]: Abstraction has 3199 states and 4793 transitions. [2024-11-07 02:09:23,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:23,048 INFO L276 IsEmpty]: Start isEmpty. Operand 3199 states and 4793 transitions. [2024-11-07 02:09:23,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-11-07 02:09:23,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:23,052 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:23,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 02:09:23,053 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:23,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:23,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1358184455, now seen corresponding path program 1 times [2024-11-07 02:09:23,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:23,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112023601] [2024-11-07 02:09:23,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:23,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:23,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:09:23,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:23,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112023601] [2024-11-07 02:09:23,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112023601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:23,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:23,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:09:23,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354711303] [2024-11-07 02:09:23,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:23,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:09:23,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:23,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:09:23,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:23,735 INFO L87 Difference]: Start difference. First operand 3199 states and 4793 transitions. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:23,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:23,862 INFO L93 Difference]: Finished difference Result 6242 states and 9353 transitions. [2024-11-07 02:09:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:23,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 0 states have call successors, (0), 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 323 [2024-11-07 02:09:23,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:23,876 INFO L225 Difference]: With dead ends: 6242 [2024-11-07 02:09:23,876 INFO L226 Difference]: Without dead ends: 3201 [2024-11-07 02:09:23,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:23,885 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 9564 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14351 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:23,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14351 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:23,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2024-11-07 02:09:23,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 3201. [2024-11-07 02:09:23,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3200 states have (on average 1.4984375) internal successors, (4795), 3200 states have internal predecessors, (4795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:23,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 4795 transitions. [2024-11-07 02:09:23,964 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 4795 transitions. Word has length 323 [2024-11-07 02:09:23,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:23,965 INFO L471 AbstractCegarLoop]: Abstraction has 3201 states and 4795 transitions. [2024-11-07 02:09:23,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:23,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 4795 transitions. [2024-11-07 02:09:23,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-07 02:09:23,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:23,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:23,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 02:09:23,973 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:23,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:23,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1754843710, now seen corresponding path program 1 times [2024-11-07 02:09:23,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:23,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689941310] [2024-11-07 02:09:23,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:23,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:24,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:09:24,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:24,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689941310] [2024-11-07 02:09:24,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689941310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:24,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:24,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:09:24,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468565883] [2024-11-07 02:09:24,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:24,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:09:24,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:24,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:09:24,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:24,616 INFO L87 Difference]: Start difference. First operand 3201 states and 4795 transitions. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:24,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:24,734 INFO L93 Difference]: Finished difference Result 6246 states and 9357 transitions. [2024-11-07 02:09:24,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:24,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 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 324 [2024-11-07 02:09:24,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:24,750 INFO L225 Difference]: With dead ends: 6246 [2024-11-07 02:09:24,750 INFO L226 Difference]: Without dead ends: 3203 [2024-11-07 02:09:24,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:24,755 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 9564 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14351 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:24,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14351 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:24,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2024-11-07 02:09:24,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 3203. [2024-11-07 02:09:24,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3203 states, 3202 states have (on average 1.4981261711430356) internal successors, (4797), 3202 states have internal predecessors, (4797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:24,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 4797 transitions. [2024-11-07 02:09:24,831 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 4797 transitions. Word has length 324 [2024-11-07 02:09:24,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:24,832 INFO L471 AbstractCegarLoop]: Abstraction has 3203 states and 4797 transitions. [2024-11-07 02:09:24,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:24,833 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 4797 transitions. [2024-11-07 02:09:24,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2024-11-07 02:09:24,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:24,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:24,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 02:09:24,838 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:24,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:24,838 INFO L85 PathProgramCache]: Analyzing trace with hash -320224590, now seen corresponding path program 1 times [2024-11-07 02:09:24,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:24,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998589970] [2024-11-07 02:09:24,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:24,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:25,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:09:25,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:25,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998589970] [2024-11-07 02:09:25,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998589970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:25,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:25,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:09:25,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583712570] [2024-11-07 02:09:25,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:25,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:09:25,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:25,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:09:25,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:09:25,542 INFO L87 Difference]: Start difference. First operand 3203 states and 4797 transitions. Second operand has 5 states, 5 states have (on average 65.0) internal successors, (325), 5 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:25,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:25,664 INFO L93 Difference]: Finished difference Result 6250 states and 9361 transitions. [2024-11-07 02:09:25,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:25,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 65.0) internal successors, (325), 5 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2024-11-07 02:09:25,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:25,679 INFO L225 Difference]: With dead ends: 6250 [2024-11-07 02:09:25,679 INFO L226 Difference]: Without dead ends: 3205 [2024-11-07 02:09:25,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:09:25,686 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 9564 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14351 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:25,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14351 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:25,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2024-11-07 02:09:25,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 3205. [2024-11-07 02:09:25,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3204 states have (on average 1.4978152309612984) internal successors, (4799), 3204 states have internal predecessors, (4799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:25,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 4799 transitions. [2024-11-07 02:09:25,761 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 4799 transitions. Word has length 325 [2024-11-07 02:09:25,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:25,762 INFO L471 AbstractCegarLoop]: Abstraction has 3205 states and 4799 transitions. [2024-11-07 02:09:25,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.0) internal successors, (325), 5 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:25,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 4799 transitions. [2024-11-07 02:09:25,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-07 02:09:25,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:25,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:25,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 02:09:25,767 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:25,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:25,768 INFO L85 PathProgramCache]: Analyzing trace with hash 26491909, now seen corresponding path program 1 times [2024-11-07 02:09:25,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:25,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18469491] [2024-11-07 02:09:25,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:25,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:26,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:09:26,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:26,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18469491] [2024-11-07 02:09:26,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18469491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:26,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:26,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:09:26,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916138782] [2024-11-07 02:09:26,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:26,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:09:26,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:26,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:09:26,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:26,316 INFO L87 Difference]: Start difference. First operand 3205 states and 4799 transitions. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:26,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:26,428 INFO L93 Difference]: Finished difference Result 6254 states and 9365 transitions. [2024-11-07 02:09:26,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:26,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 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 326 [2024-11-07 02:09:26,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:26,442 INFO L225 Difference]: With dead ends: 6254 [2024-11-07 02:09:26,443 INFO L226 Difference]: Without dead ends: 3207 [2024-11-07 02:09:26,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:26,450 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 9564 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14351 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:26,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14351 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:26,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2024-11-07 02:09:26,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 3207. [2024-11-07 02:09:26,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 3206 states have (on average 1.4975046787273862) internal successors, (4801), 3206 states have internal predecessors, (4801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:26,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 4801 transitions. [2024-11-07 02:09:26,525 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 4801 transitions. Word has length 326 [2024-11-07 02:09:26,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:26,527 INFO L471 AbstractCegarLoop]: Abstraction has 3207 states and 4801 transitions. [2024-11-07 02:09:26,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 4801 transitions. [2024-11-07 02:09:26,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-07 02:09:26,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:26,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:26,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 02:09:26,536 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:26,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:26,537 INFO L85 PathProgramCache]: Analyzing trace with hash -486674325, now seen corresponding path program 1 times [2024-11-07 02:09:26,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:26,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606094870] [2024-11-07 02:09:26,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:26,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:27,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:09:27,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:27,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606094870] [2024-11-07 02:09:27,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606094870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:27,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:27,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:09:27,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773416626] [2024-11-07 02:09:27,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:27,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:09:27,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:27,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:09:27,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:27,031 INFO L87 Difference]: Start difference. First operand 3207 states and 4801 transitions. Second operand has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:27,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:27,143 INFO L93 Difference]: Finished difference Result 6258 states and 9369 transitions. [2024-11-07 02:09:27,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:27,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 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 327 [2024-11-07 02:09:27,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:27,157 INFO L225 Difference]: With dead ends: 6258 [2024-11-07 02:09:27,157 INFO L226 Difference]: Without dead ends: 3209 [2024-11-07 02:09:27,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:27,163 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 9564 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14351 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:27,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14351 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:27,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3209 states. [2024-11-07 02:09:27,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3209 to 3209. [2024-11-07 02:09:27,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3209 states, 3208 states have (on average 1.4971945137157108) internal successors, (4803), 3208 states have internal predecessors, (4803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:27,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3209 states to 3209 states and 4803 transitions. [2024-11-07 02:09:27,234 INFO L78 Accepts]: Start accepts. Automaton has 3209 states and 4803 transitions. Word has length 327 [2024-11-07 02:09:27,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:27,235 INFO L471 AbstractCegarLoop]: Abstraction has 3209 states and 4803 transitions. [2024-11-07 02:09:27,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:27,235 INFO L276 IsEmpty]: Start isEmpty. Operand 3209 states and 4803 transitions. [2024-11-07 02:09:27,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-11-07 02:09:27,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:27,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:27,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 02:09:27,240 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:27,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:27,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1567316684, now seen corresponding path program 1 times [2024-11-07 02:09:27,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:27,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597313206] [2024-11-07 02:09:27,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:27,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:27,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:09:27,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:27,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597313206] [2024-11-07 02:09:27,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597313206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:27,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:27,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:09:27,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428452077] [2024-11-07 02:09:27,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:27,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:09:27,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:27,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:09:27,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:27,832 INFO L87 Difference]: Start difference. First operand 3209 states and 4803 transitions. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:27,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:27,948 INFO L93 Difference]: Finished difference Result 6262 states and 9373 transitions. [2024-11-07 02:09:27,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:27,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 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 328 [2024-11-07 02:09:27,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:27,970 INFO L225 Difference]: With dead ends: 6262 [2024-11-07 02:09:27,970 INFO L226 Difference]: Without dead ends: 3211 [2024-11-07 02:09:27,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:27,977 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 9564 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14351 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:27,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14351 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:27,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3211 states. [2024-11-07 02:09:28,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3211 to 3211. [2024-11-07 02:09:28,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3210 states have (on average 1.4968847352024923) internal successors, (4805), 3210 states have internal predecessors, (4805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:28,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 4805 transitions. [2024-11-07 02:09:28,062 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 4805 transitions. Word has length 328 [2024-11-07 02:09:28,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:28,062 INFO L471 AbstractCegarLoop]: Abstraction has 3211 states and 4805 transitions. [2024-11-07 02:09:28,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:28,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 4805 transitions. [2024-11-07 02:09:28,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-07 02:09:28,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:28,068 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:28,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 02:09:28,069 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:28,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:28,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1080858916, now seen corresponding path program 1 times [2024-11-07 02:09:28,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:28,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46341542] [2024-11-07 02:09:28,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:28,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:28,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:09:28,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:28,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46341542] [2024-11-07 02:09:28,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46341542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:28,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:28,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:09:28,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983685227] [2024-11-07 02:09:28,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:28,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:09:28,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:28,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:09:28,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:09:28,754 INFO L87 Difference]: Start difference. First operand 3211 states and 4805 transitions. Second operand has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:28,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:28,925 INFO L93 Difference]: Finished difference Result 9303 states and 13924 transitions. [2024-11-07 02:09:28,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:09:28,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 329 [2024-11-07 02:09:28,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:28,950 INFO L225 Difference]: With dead ends: 9303 [2024-11-07 02:09:28,950 INFO L226 Difference]: Without dead ends: 6250 [2024-11-07 02:09:28,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 02:09:28,956 INFO L432 NwaCegarLoop]: 4785 mSDtfsCounter, 4452 mSDsluCounter, 14114 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4452 SdHoareTripleChecker+Valid, 18899 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:28,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4452 Valid, 18899 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:28,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6250 states. [2024-11-07 02:09:29,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6250 to 3679. [2024-11-07 02:09:29,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3679 states, 3678 states have (on average 1.4972811310494833) internal successors, (5507), 3678 states have internal predecessors, (5507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:29,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3679 states to 3679 states and 5507 transitions. [2024-11-07 02:09:29,063 INFO L78 Accepts]: Start accepts. Automaton has 3679 states and 5507 transitions. Word has length 329 [2024-11-07 02:09:29,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:29,064 INFO L471 AbstractCegarLoop]: Abstraction has 3679 states and 5507 transitions. [2024-11-07 02:09:29,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:29,065 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 5507 transitions. [2024-11-07 02:09:29,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1849 [2024-11-07 02:09:29,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:29,143 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:29,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 02:09:29,144 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:29,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:29,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1251419127, now seen corresponding path program 1 times [2024-11-07 02:09:29,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:29,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276992161] [2024-11-07 02:09:29,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:29,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:35,220 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-11-07 02:09:35,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:35,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276992161] [2024-11-07 02:09:35,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276992161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:35,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:35,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:09:35,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029176839] [2024-11-07 02:09:35,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:35,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:09:35,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:35,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:09:35,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:09:35,227 INFO L87 Difference]: Start difference. First operand 3679 states and 5507 transitions. Second operand has 5 states, 5 states have (on average 325.4) internal successors, (1627), 5 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:35,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:35,337 INFO L93 Difference]: Finished difference Result 6758 states and 10115 transitions. [2024-11-07 02:09:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:35,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 325.4) internal successors, (1627), 5 states have internal predecessors, (1627), 0 states have call successors, (0), 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 1848 [2024-11-07 02:09:35,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:35,353 INFO L225 Difference]: With dead ends: 6758 [2024-11-07 02:09:35,353 INFO L226 Difference]: Without dead ends: 3683 [2024-11-07 02:09:35,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:09:35,360 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 9564 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14351 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:35,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14351 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:35,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3683 states. [2024-11-07 02:09:35,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3683 to 3681. [2024-11-07 02:09:35,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3681 states, 3680 states have (on average 1.4970108695652173) internal successors, (5509), 3680 states have internal predecessors, (5509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:35,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3681 states to 3681 states and 5509 transitions. [2024-11-07 02:09:35,441 INFO L78 Accepts]: Start accepts. Automaton has 3681 states and 5509 transitions. Word has length 1848 [2024-11-07 02:09:35,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:35,444 INFO L471 AbstractCegarLoop]: Abstraction has 3681 states and 5509 transitions. [2024-11-07 02:09:35,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 325.4) internal successors, (1627), 5 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:35,445 INFO L276 IsEmpty]: Start isEmpty. Operand 3681 states and 5509 transitions. [2024-11-07 02:09:35,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1850 [2024-11-07 02:09:35,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:35,541 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:35,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 02:09:35,542 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:35,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:35,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1869653536, now seen corresponding path program 1 times [2024-11-07 02:09:35,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:35,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550593452] [2024-11-07 02:09:35,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:35,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:39,801 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-07 02:09:39,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:39,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550593452] [2024-11-07 02:09:39,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550593452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:39,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:39,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:09:39,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270186689] [2024-11-07 02:09:39,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:39,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:09:39,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:39,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:09:39,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:09:39,807 INFO L87 Difference]: Start difference. First operand 3681 states and 5509 transitions. Second operand has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:39,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:39,894 INFO L93 Difference]: Finished difference Result 6766 states and 10125 transitions. [2024-11-07 02:09:39,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:39,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 0 states have call successors, (0), 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 1849 [2024-11-07 02:09:39,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:39,906 INFO L225 Difference]: With dead ends: 6766 [2024-11-07 02:09:39,907 INFO L226 Difference]: Without dead ends: 3685 [2024-11-07 02:09:39,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:09:39,912 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 9564 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14351 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:39,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14351 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:39,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3685 states. [2024-11-07 02:09:39,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3685 to 3683. [2024-11-07 02:09:39,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3683 states, 3682 states have (on average 1.4967409016838675) internal successors, (5511), 3682 states have internal predecessors, (5511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3683 states to 3683 states and 5511 transitions. [2024-11-07 02:09:39,979 INFO L78 Accepts]: Start accepts. Automaton has 3683 states and 5511 transitions. Word has length 1849 [2024-11-07 02:09:39,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:39,982 INFO L471 AbstractCegarLoop]: Abstraction has 3683 states and 5511 transitions. [2024-11-07 02:09:39,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:39,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3683 states and 5511 transitions. [2024-11-07 02:09:40,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1851 [2024-11-07 02:09:40,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:40,008 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:40,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 02:09:40,009 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:40,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:40,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1146278160, now seen corresponding path program 1 times [2024-11-07 02:09:40,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:40,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43247845] [2024-11-07 02:09:40,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:40,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:44,840 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-07 02:09:44,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:44,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43247845] [2024-11-07 02:09:44,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43247845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:44,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:44,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:09:44,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638833778] [2024-11-07 02:09:44,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:44,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:09:44,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:44,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:09:44,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:44,846 INFO L87 Difference]: Start difference. First operand 3683 states and 5511 transitions. Second operand has 4 states, 4 states have (on average 408.25) internal successors, (1633), 4 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:44,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:44,916 INFO L93 Difference]: Finished difference Result 6774 states and 10135 transitions. [2024-11-07 02:09:44,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:44,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 408.25) internal successors, (1633), 4 states have internal predecessors, (1633), 0 states have call successors, (0), 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 1850 [2024-11-07 02:09:44,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:44,929 INFO L225 Difference]: With dead ends: 6774 [2024-11-07 02:09:44,929 INFO L226 Difference]: Without dead ends: 3687 [2024-11-07 02:09:44,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:44,935 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 9564 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14351 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:44,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14351 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:44,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2024-11-07 02:09:44,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3685. [2024-11-07 02:09:44,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3685 states, 3684 states have (on average 1.496471226927253) internal successors, (5513), 3684 states have internal predecessors, (5513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:44,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3685 states to 3685 states and 5513 transitions. [2024-11-07 02:09:44,993 INFO L78 Accepts]: Start accepts. Automaton has 3685 states and 5513 transitions. Word has length 1850 [2024-11-07 02:09:44,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:44,996 INFO L471 AbstractCegarLoop]: Abstraction has 3685 states and 5513 transitions. [2024-11-07 02:09:44,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 408.25) internal successors, (1633), 4 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:44,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 5513 transitions. [2024-11-07 02:09:45,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1852 [2024-11-07 02:09:45,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:45,022 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:45,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 02:09:45,023 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:45,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:45,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1961656231, now seen corresponding path program 1 times [2024-11-07 02:09:45,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:45,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32715689] [2024-11-07 02:09:45,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:45,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:48,633 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-07 02:09:48,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:48,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32715689] [2024-11-07 02:09:48,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32715689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:48,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:48,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:09:48,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615120475] [2024-11-07 02:09:48,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:48,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:09:48,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:48,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:09:48,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:09:48,640 INFO L87 Difference]: Start difference. First operand 3685 states and 5513 transitions. Second operand has 5 states, 5 states have (on average 327.2) internal successors, (1636), 5 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:48,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:48,729 INFO L93 Difference]: Finished difference Result 6782 states and 10145 transitions. [2024-11-07 02:09:48,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:48,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 327.2) internal successors, (1636), 5 states have internal predecessors, (1636), 0 states have call successors, (0), 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 1851 [2024-11-07 02:09:48,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:48,739 INFO L225 Difference]: With dead ends: 6782 [2024-11-07 02:09:48,740 INFO L226 Difference]: Without dead ends: 3689 [2024-11-07 02:09:48,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:09:48,745 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 14345 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19132 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:48,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19132 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:48,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2024-11-07 02:09:48,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 3687. [2024-11-07 02:09:48,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 3686 states have (on average 1.496201844818231) internal successors, (5515), 3686 states have internal predecessors, (5515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:48,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5515 transitions. [2024-11-07 02:09:48,806 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5515 transitions. Word has length 1851 [2024-11-07 02:09:48,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:48,807 INFO L471 AbstractCegarLoop]: Abstraction has 3687 states and 5515 transitions. [2024-11-07 02:09:48,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 327.2) internal successors, (1636), 5 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:48,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5515 transitions. [2024-11-07 02:09:48,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1853 [2024-11-07 02:09:48,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:48,834 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:48,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 02:09:48,834 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:48,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:48,835 INFO L85 PathProgramCache]: Analyzing trace with hash -58882839, now seen corresponding path program 1 times [2024-11-07 02:09:48,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:48,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125825102] [2024-11-07 02:09:48,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:48,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:52,344 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-07 02:09:52,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:52,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125825102] [2024-11-07 02:09:52,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125825102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:52,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:52,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:09:52,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232274809] [2024-11-07 02:09:52,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:52,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:09:52,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:52,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:09:52,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:09:52,349 INFO L87 Difference]: Start difference. First operand 3687 states and 5515 transitions. Second operand has 5 states, 5 states have (on average 327.8) internal successors, (1639), 5 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:52,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:52,425 INFO L93 Difference]: Finished difference Result 6790 states and 10155 transitions. [2024-11-07 02:09:52,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:52,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 327.8) internal successors, (1639), 5 states have internal predecessors, (1639), 0 states have call successors, (0), 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 1852 [2024-11-07 02:09:52,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:52,435 INFO L225 Difference]: With dead ends: 6790 [2024-11-07 02:09:52,435 INFO L226 Difference]: Without dead ends: 3691 [2024-11-07 02:09:52,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:09:52,440 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 9564 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14351 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:52,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14351 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:52,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3691 states. [2024-11-07 02:09:52,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3691 to 3689. [2024-11-07 02:09:52,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3689 states, 3688 states have (on average 1.4959327548806942) internal successors, (5517), 3688 states have internal predecessors, (5517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:52,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5517 transitions. [2024-11-07 02:09:52,494 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 5517 transitions. Word has length 1852 [2024-11-07 02:09:52,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:52,495 INFO L471 AbstractCegarLoop]: Abstraction has 3689 states and 5517 transitions. [2024-11-07 02:09:52,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 327.8) internal successors, (1639), 5 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:52,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5517 transitions. [2024-11-07 02:09:52,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1854 [2024-11-07 02:09:52,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:52,521 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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] [2024-11-07 02:09:52,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 02:09:52,522 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:52,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:52,523 INFO L85 PathProgramCache]: Analyzing trace with hash -116005330, now seen corresponding path program 1 times [2024-11-07 02:09:52,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:52,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983741985] [2024-11-07 02:09:52,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:52,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:55,352 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-07 02:09:55,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:55,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983741985] [2024-11-07 02:09:55,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983741985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:55,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:55,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:09:55,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765791956] [2024-11-07 02:09:55,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:55,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:09:55,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:55,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:09:55,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:55,356 INFO L87 Difference]: Start difference. First operand 3689 states and 5517 transitions. Second operand has 4 states, 4 states have (on average 410.5) internal successors, (1642), 4 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:55,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:55,430 INFO L93 Difference]: Finished difference Result 6798 states and 10165 transitions. [2024-11-07 02:09:55,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:55,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 410.5) internal successors, (1642), 4 states have internal predecessors, (1642), 0 states have call successors, (0), 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 1853 [2024-11-07 02:09:55,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:55,442 INFO L225 Difference]: With dead ends: 6798 [2024-11-07 02:09:55,442 INFO L226 Difference]: Without dead ends: 3693 [2024-11-07 02:09:55,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:09:55,448 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 9564 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14351 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:55,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14351 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:55,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2024-11-07 02:09:55,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3691. [2024-11-07 02:09:55,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3691 states, 3690 states have (on average 1.4956639566395664) internal successors, (5519), 3690 states have internal predecessors, (5519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:55,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3691 states to 3691 states and 5519 transitions. [2024-11-07 02:09:55,493 INFO L78 Accepts]: Start accepts. Automaton has 3691 states and 5519 transitions. Word has length 1853 [2024-11-07 02:09:55,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:55,495 INFO L471 AbstractCegarLoop]: Abstraction has 3691 states and 5519 transitions. [2024-11-07 02:09:55,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 410.5) internal successors, (1642), 4 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:55,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3691 states and 5519 transitions. [2024-11-07 02:09:55,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1855 [2024-11-07 02:09:55,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:55,562 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:09:55,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 02:09:55,563 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:55,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:55,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1224706590, now seen corresponding path program 1 times [2024-11-07 02:09:55,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:55,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322051252] [2024-11-07 02:09:55,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:55,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:09:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:09:58,878 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-07 02:09:58,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:09:58,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322051252] [2024-11-07 02:09:58,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322051252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:09:58,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:09:58,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:09:58,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938443223] [2024-11-07 02:09:58,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:09:58,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:09:58,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:09:58,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:09:58,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:09:58,883 INFO L87 Difference]: Start difference. First operand 3691 states and 5519 transitions. Second operand has 5 states, 5 states have (on average 329.0) internal successors, (1645), 5 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:58,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:09:58,960 INFO L93 Difference]: Finished difference Result 6806 states and 10175 transitions. [2024-11-07 02:09:58,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:09:58,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 329.0) internal successors, (1645), 5 states have internal predecessors, (1645), 0 states have call successors, (0), 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 1854 [2024-11-07 02:09:58,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:09:58,969 INFO L225 Difference]: With dead ends: 6806 [2024-11-07 02:09:58,969 INFO L226 Difference]: Without dead ends: 3695 [2024-11-07 02:09:58,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:09:58,975 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 0 mSDsluCounter, 14345 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19132 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:09:58,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19132 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:09:58,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2024-11-07 02:09:59,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 3693. [2024-11-07 02:09:59,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3692 states have (on average 1.4953954496208017) internal successors, (5521), 3692 states have internal predecessors, (5521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:59,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 5521 transitions. [2024-11-07 02:09:59,026 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 5521 transitions. Word has length 1854 [2024-11-07 02:09:59,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:09:59,028 INFO L471 AbstractCegarLoop]: Abstraction has 3693 states and 5521 transitions. [2024-11-07 02:09:59,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 329.0) internal successors, (1645), 5 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:09:59,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 5521 transitions. [2024-11-07 02:09:59,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1856 [2024-11-07 02:09:59,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:09:59,052 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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] [2024-11-07 02:09:59,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 02:09:59,052 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:09:59,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:09:59,054 INFO L85 PathProgramCache]: Analyzing trace with hash 776243637, now seen corresponding path program 1 times [2024-11-07 02:09:59,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:09:59,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87124721] [2024-11-07 02:09:59,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:09:59,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:10:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:10:02,513 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-11-07 02:10:02,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:10:02,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87124721] [2024-11-07 02:10:02,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87124721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:10:02,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:10:02,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:10:02,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8682013] [2024-11-07 02:10:02,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:10:02,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:10:02,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:10:02,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:10:02,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:10:02,519 INFO L87 Difference]: Start difference. First operand 3693 states and 5521 transitions. Second operand has 4 states, 4 states have (on average 412.5) internal successors, (1650), 4 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:10:02,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:10:02,603 INFO L93 Difference]: Finished difference Result 6822 states and 10197 transitions. [2024-11-07 02:10:02,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:10:02,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 412.5) internal successors, (1650), 4 states have internal predecessors, (1650), 0 states have call successors, (0), 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 1855 [2024-11-07 02:10:02,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:10:02,615 INFO L225 Difference]: With dead ends: 6822 [2024-11-07 02:10:02,615 INFO L226 Difference]: Without dead ends: 3705 [2024-11-07 02:10:02,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:10:02,620 INFO L432 NwaCegarLoop]: 4787 mSDtfsCounter, 4 mSDsluCounter, 9564 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14351 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:10:02,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14351 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:10:02,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2024-11-07 02:10:02,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3699. [2024-11-07 02:10:02,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3699 states, 3698 states have (on average 1.4951325040562466) internal successors, (5529), 3698 states have internal predecessors, (5529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:10:02,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3699 states to 3699 states and 5529 transitions. [2024-11-07 02:10:02,670 INFO L78 Accepts]: Start accepts. Automaton has 3699 states and 5529 transitions. Word has length 1855 [2024-11-07 02:10:02,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:10:02,672 INFO L471 AbstractCegarLoop]: Abstraction has 3699 states and 5529 transitions. [2024-11-07 02:10:02,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 412.5) internal successors, (1650), 4 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:10:02,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3699 states and 5529 transitions. [2024-11-07 02:10:02,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1857 [2024-11-07 02:10:02,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:10:02,695 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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] [2024-11-07 02:10:02,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 02:10:02,696 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:10:02,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:10:02,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1825026356, now seen corresponding path program 1 times [2024-11-07 02:10:02,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:10:02,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956837326] [2024-11-07 02:10:02,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:10:02,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:10:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:10:06,261 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 106 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:10:06,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:10:06,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956837326] [2024-11-07 02:10:06,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956837326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:10:06,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093725649] [2024-11-07 02:10:06,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:10:06,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:10:06,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:10:06,264 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 02:10:06,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process