./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d16_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d16_e0.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 70b2d9af04af270da2e1fd1a59b80de51b2bc8d4f10af5f490c2bc81214e1fd3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:04:44,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:04:44,460 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:04:44,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:04:44,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:04:44,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:04:44,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:04:44,499 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:04:44,500 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:04:44,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:04:44,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:04:44,504 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:04:44,504 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:04:44,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:04:44,508 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:04:44,508 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:04:44,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:04:44,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:04:44,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:04:44,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:04:44,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:04:44,516 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:04:44,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:04:44,518 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:04:44,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:04:44,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:04:44,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:04:44,520 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:04:44,520 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:04:44,521 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:04:44,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:04:44,523 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:04:44,523 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:04:44,524 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:04:44,524 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:04:44,524 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:04:44,525 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70b2d9af04af270da2e1fd1a59b80de51b2bc8d4f10af5f490c2bc81214e1fd3 [2023-11-06 22:04:44,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:04:44,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:04:44,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:04:44,868 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:04:44,869 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:04:44,870 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d16_e0.c [2023-11-06 22:04:48,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:04:48,468 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:04:48,469 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d16_e0.c [2023-11-06 22:04:48,495 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP/data/64ef54ab1/916e96a16da44f808783bfedaad9b246/FLAG4636d8cfe [2023-11-06 22:04:48,511 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP/data/64ef54ab1/916e96a16da44f808783bfedaad9b246 [2023-11-06 22:04:48,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:04:48,516 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:04:48,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:04:48,518 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:04:48,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:04:48,531 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:04:48" (1/1) ... [2023-11-06 22:04:48,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2371e7ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:48, skipping insertion in model container [2023-11-06 22:04:48,532 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:04:48" (1/1) ... [2023-11-06 22:04:48,674 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:04:48,861 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d16_e0.c[1271,1284] [2023-11-06 22:04:49,433 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:04:49,444 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:04:49,457 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d16_e0.c[1271,1284] [2023-11-06 22:04:49,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:04:49,834 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:04:49,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:49 WrapperNode [2023-11-06 22:04:49,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:04:49,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:04:49,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:04:49,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:04:49,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:49" (1/1) ... [2023-11-06 22:04:49,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:49" (1/1) ... [2023-11-06 22:04:50,681 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6520 [2023-11-06 22:04:50,682 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:04:50,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:04:50,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:04:50,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:04:50,694 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:49" (1/1) ... [2023-11-06 22:04:50,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:49" (1/1) ... [2023-11-06 22:04:50,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:49" (1/1) ... [2023-11-06 22:04:50,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:49" (1/1) ... [2023-11-06 22:04:51,006 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:49" (1/1) ... [2023-11-06 22:04:51,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:49" (1/1) ... [2023-11-06 22:04:51,078 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:49" (1/1) ... [2023-11-06 22:04:51,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:49" (1/1) ... [2023-11-06 22:04:51,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:04:51,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:04:51,385 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:04:51,385 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:04:51,386 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:49" (1/1) ... [2023-11-06 22:04:51,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:04:51,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:04:51,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:04:51,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1849cad2-5203-4d43-ba5f-2244eda097da/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:04:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:04:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:04:51,589 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:04:51,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:04:51,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:04:51,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:04:52,249 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:04:52,251 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:04:57,317 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:04:57,351 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:04:57,354 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:04:57,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:04:57 BoogieIcfgContainer [2023-11-06 22:04:57,360 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:04:57,363 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:04:57,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:04:57,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:04:57,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:04:48" (1/3) ... [2023-11-06 22:04:57,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5365827a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:04:57, skipping insertion in model container [2023-11-06 22:04:57,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:49" (2/3) ... [2023-11-06 22:04:57,372 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5365827a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:04:57, skipping insertion in model container [2023-11-06 22:04:57,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:04:57" (3/3) ... [2023-11-06 22:04:57,373 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n3_w16_d16_e0.c [2023-11-06 22:04:57,394 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:04:57,394 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:04:57,500 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:04:57,509 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6ac8ffb5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:04:57,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:04:57,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 1265 states, 1252 states have (on average 1.6589456869009584) internal successors, (2077), 1253 states have internal predecessors, (2077), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:04:57,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2023-11-06 22:04:57,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:57,579 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:57,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:04:57,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:57,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1259971833, now seen corresponding path program 1 times [2023-11-06 22:04:57,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:57,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122696270] [2023-11-06 22:04:57,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:57,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:58,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:04:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:04:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:58,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:04:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:58,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:04:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:58,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-06 22:04:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:58,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-06 22:04:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:58,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-06 22:04:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:58,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-11-06 22:04:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:58,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-11-06 22:04:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:58,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-11-06 22:04:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:58,751 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:04:58,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:58,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122696270] [2023-11-06 22:04:58,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122696270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:58,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:58,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:04:58,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441551847] [2023-11-06 22:04:58,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:58,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:04:58,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:58,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:04:58,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:04:58,807 INFO L87 Difference]: Start difference. First operand has 1265 states, 1252 states have (on average 1.6589456869009584) internal successors, (2077), 1253 states have internal predecessors, (2077), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 247.0) internal successors, (494), 2 states have internal predecessors, (494), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:04:58,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:58,919 INFO L93 Difference]: Finished difference Result 2329 states and 3874 transitions. [2023-11-06 22:04:58,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:04:58,924 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 247.0) internal successors, (494), 2 states have internal predecessors, (494), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 541 [2023-11-06 22:04:58,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:58,956 INFO L225 Difference]: With dead ends: 2329 [2023-11-06 22:04:58,956 INFO L226 Difference]: Without dead ends: 1261 [2023-11-06 22:04:58,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:04:58,975 INFO L413 NwaCegarLoop]: 2090 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:58,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2090 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:04:58,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2023-11-06 22:04:59,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1261. [2023-11-06 22:04:59,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1249 states have (on average 1.6573258606885508) internal successors, (2070), 1249 states have internal predecessors, (2070), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:04:59,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 2090 transitions. [2023-11-06 22:04:59,142 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 2090 transitions. Word has length 541 [2023-11-06 22:04:59,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:59,147 INFO L495 AbstractCegarLoop]: Abstraction has 1261 states and 2090 transitions. [2023-11-06 22:04:59,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 247.0) internal successors, (494), 2 states have internal predecessors, (494), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:04:59,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 2090 transitions. [2023-11-06 22:04:59,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2023-11-06 22:04:59,164 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:59,164 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:59,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:04:59,166 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:04:59,166 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:59,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1365374093, now seen corresponding path program 1 times [2023-11-06 22:04:59,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:59,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408973603] [2023-11-06 22:04:59,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:59,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:02,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:02,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:02,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:02,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:02,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-06 22:05:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:02,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-06 22:05:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:02,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-06 22:05:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:02,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-11-06 22:05:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:02,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-11-06 22:05:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:02,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-11-06 22:05:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:02,914 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:02,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:02,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408973603] [2023-11-06 22:05:02,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408973603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:02,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:02,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:05:02,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64497667] [2023-11-06 22:05:02,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:02,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:05:02,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:02,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:05:02,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:05:02,921 INFO L87 Difference]: Start difference. First operand 1261 states and 2090 transitions. Second operand has 4 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:03,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:03,014 INFO L93 Difference]: Finished difference Result 1265 states and 2094 transitions. [2023-11-06 22:05:03,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:03,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 541 [2023-11-06 22:05:03,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:03,026 INFO L225 Difference]: With dead ends: 1265 [2023-11-06 22:05:03,026 INFO L226 Difference]: Without dead ends: 1263 [2023-11-06 22:05:03,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:05:03,029 INFO L413 NwaCegarLoop]: 2088 mSDtfsCounter, 1 mSDsluCounter, 4170 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6258 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:03,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6258 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:05:03,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2023-11-06 22:05:03,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1263. [2023-11-06 22:05:03,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 1251 states have (on average 1.6562749800159873) internal successors, (2072), 1251 states have internal predecessors, (2072), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:03,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 2092 transitions. [2023-11-06 22:05:03,074 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 2092 transitions. Word has length 541 [2023-11-06 22:05:03,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:03,077 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 2092 transitions. [2023-11-06 22:05:03,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:03,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 2092 transitions. [2023-11-06 22:05:03,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2023-11-06 22:05:03,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:03,097 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:03,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:05:03,098 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:03,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:03,099 INFO L85 PathProgramCache]: Analyzing trace with hash 624803901, now seen corresponding path program 1 times [2023-11-06 22:05:03,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:03,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470072109] [2023-11-06 22:05:03,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:03,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:05,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:05,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:05,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:05,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:05,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-06 22:05:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:05,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-06 22:05:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:05,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-06 22:05:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:05,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-11-06 22:05:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:05,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-11-06 22:05:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:05,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-11-06 22:05:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:05,507 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:05,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:05,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470072109] [2023-11-06 22:05:05,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470072109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:05,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:05,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:05,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884449647] [2023-11-06 22:05:05,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:05,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:05,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:05,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:05,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:05,515 INFO L87 Difference]: Start difference. First operand 1263 states and 2092 transitions. Second operand has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:05:06,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:06,948 INFO L93 Difference]: Finished difference Result 3281 states and 5403 transitions. [2023-11-06 22:05:06,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:05:06,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 542 [2023-11-06 22:05:06,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:06,957 INFO L225 Difference]: With dead ends: 3281 [2023-11-06 22:05:06,957 INFO L226 Difference]: Without dead ends: 1263 [2023-11-06 22:05:06,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:05:06,961 INFO L413 NwaCegarLoop]: 2090 mSDtfsCounter, 4302 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4308 SdHoareTripleChecker+Valid, 5841 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:06,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4308 Valid, 5841 Invalid, 840 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [111 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-06 22:05:06,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2023-11-06 22:05:06,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1263. [2023-11-06 22:05:06,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 1251 states have (on average 1.6554756195043965) internal successors, (2071), 1251 states have internal predecessors, (2071), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:07,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 2091 transitions. [2023-11-06 22:05:07,004 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 2091 transitions. Word has length 542 [2023-11-06 22:05:07,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:07,005 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 2091 transitions. [2023-11-06 22:05:07,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:05:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 2091 transitions. [2023-11-06 22:05:07,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2023-11-06 22:05:07,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:07,020 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:07,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:05:07,021 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:07,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:07,022 INFO L85 PathProgramCache]: Analyzing trace with hash -454458845, now seen corresponding path program 1 times [2023-11-06 22:05:07,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:07,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096469138] [2023-11-06 22:05:07,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:07,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:08,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:08,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:08,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:08,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:08,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:08,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:08,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:08,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:08,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:08,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:08,799 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:08,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:08,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096469138] [2023-11-06 22:05:08,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096469138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:08,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:08,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:08,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994770191] [2023-11-06 22:05:08,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:08,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:08,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:08,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:08,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:08,804 INFO L87 Difference]: Start difference. First operand 1263 states and 2091 transitions. Second operand has 5 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:05:09,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:09,911 INFO L93 Difference]: Finished difference Result 2329 states and 3855 transitions. [2023-11-06 22:05:09,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:09,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 543 [2023-11-06 22:05:09,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:09,920 INFO L225 Difference]: With dead ends: 2329 [2023-11-06 22:05:09,920 INFO L226 Difference]: Without dead ends: 1263 [2023-11-06 22:05:09,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:09,933 INFO L413 NwaCegarLoop]: 1634 mSDtfsCounter, 3818 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3822 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:09,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3822 Valid, 3270 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:05:09,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2023-11-06 22:05:09,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1263. [2023-11-06 22:05:09,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 1251 states have (on average 1.6546762589928057) internal successors, (2070), 1251 states have internal predecessors, (2070), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:09,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 2090 transitions. [2023-11-06 22:05:09,982 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 2090 transitions. Word has length 543 [2023-11-06 22:05:09,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:09,983 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 2090 transitions. [2023-11-06 22:05:09,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:05:09,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 2090 transitions. [2023-11-06 22:05:09,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2023-11-06 22:05:09,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:09,995 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:09,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:05:09,995 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:09,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:09,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1538036183, now seen corresponding path program 1 times [2023-11-06 22:05:09,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:09,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625126039] [2023-11-06 22:05:09,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:09,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:11,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:11,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:11,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:11,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:11,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:11,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:11,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:11,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:11,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:11,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:11,724 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:11,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:11,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625126039] [2023-11-06 22:05:11,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625126039] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:11,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:11,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:11,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041587269] [2023-11-06 22:05:11,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:11,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:11,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:11,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:11,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:11,730 INFO L87 Difference]: Start difference. First operand 1263 states and 2090 transitions. Second operand has 5 states, 5 states have (on average 99.4) internal successors, (497), 5 states have internal predecessors, (497), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:05:12,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:12,811 INFO L93 Difference]: Finished difference Result 2329 states and 3853 transitions. [2023-11-06 22:05:12,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:12,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 99.4) internal successors, (497), 5 states have internal predecessors, (497), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 544 [2023-11-06 22:05:12,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:12,820 INFO L225 Difference]: With dead ends: 2329 [2023-11-06 22:05:12,821 INFO L226 Difference]: Without dead ends: 1263 [2023-11-06 22:05:12,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:12,825 INFO L413 NwaCegarLoop]: 1634 mSDtfsCounter, 1918 mSDsluCounter, 1650 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 3284 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:12,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1922 Valid, 3284 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:05:12,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2023-11-06 22:05:12,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1263. [2023-11-06 22:05:12,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 1251 states have (on average 1.653876898481215) internal successors, (2069), 1251 states have internal predecessors, (2069), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:12,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 2089 transitions. [2023-11-06 22:05:12,868 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 2089 transitions. Word has length 544 [2023-11-06 22:05:12,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:12,869 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 2089 transitions. [2023-11-06 22:05:12,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.4) internal successors, (497), 5 states have internal predecessors, (497), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:05:12,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 2089 transitions. [2023-11-06 22:05:12,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2023-11-06 22:05:12,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:12,875 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:12,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:05:12,876 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:12,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:12,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1962927059, now seen corresponding path program 1 times [2023-11-06 22:05:12,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:12,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356970294] [2023-11-06 22:05:12,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:12,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:15,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:15,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:15,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:15,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:15,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:15,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:15,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:15,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:15,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:15,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:15,241 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:15,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:15,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356970294] [2023-11-06 22:05:15,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356970294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:15,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:15,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:15,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104168935] [2023-11-06 22:05:15,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:15,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:15,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:15,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:15,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:15,247 INFO L87 Difference]: Start difference. First operand 1263 states and 2089 transitions. Second operand has 5 states, 5 states have (on average 99.6) internal successors, (498), 5 states have internal predecessors, (498), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:05:16,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:16,245 INFO L93 Difference]: Finished difference Result 2329 states and 3851 transitions. [2023-11-06 22:05:16,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:16,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 99.6) internal successors, (498), 5 states have internal predecessors, (498), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 545 [2023-11-06 22:05:16,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:16,255 INFO L225 Difference]: With dead ends: 2329 [2023-11-06 22:05:16,255 INFO L226 Difference]: Without dead ends: 1263 [2023-11-06 22:05:16,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:16,259 INFO L413 NwaCegarLoop]: 1634 mSDtfsCounter, 3498 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3502 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:16,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3502 Valid, 3270 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-06 22:05:16,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2023-11-06 22:05:16,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1263. [2023-11-06 22:05:16,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 1251 states have (on average 1.6530775379696243) internal successors, (2068), 1251 states have internal predecessors, (2068), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:16,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 2088 transitions. [2023-11-06 22:05:16,304 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 2088 transitions. Word has length 545 [2023-11-06 22:05:16,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:16,305 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 2088 transitions. [2023-11-06 22:05:16,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.6) internal successors, (498), 5 states have internal predecessors, (498), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:05:16,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 2088 transitions. [2023-11-06 22:05:16,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2023-11-06 22:05:16,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:16,313 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:16,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:05:16,313 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:16,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:16,314 INFO L85 PathProgramCache]: Analyzing trace with hash 410090275, now seen corresponding path program 1 times [2023-11-06 22:05:16,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:16,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809732725] [2023-11-06 22:05:16,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:16,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:17,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:17,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:17,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:17,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:17,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:17,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:17,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:17,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:17,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:17,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:17,846 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:17,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:17,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809732725] [2023-11-06 22:05:17,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809732725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:17,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:17,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:05:17,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692194780] [2023-11-06 22:05:17,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:17,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:05:17,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:17,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:05:17,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:05:17,853 INFO L87 Difference]: Start difference. First operand 1263 states and 2088 transitions. Second operand has 4 states, 4 states have (on average 124.75) internal successors, (499), 4 states have internal predecessors, (499), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:17,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:17,934 INFO L93 Difference]: Finished difference Result 2332 states and 3853 transitions. [2023-11-06 22:05:17,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:17,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 124.75) internal successors, (499), 4 states have internal predecessors, (499), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 546 [2023-11-06 22:05:17,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:17,944 INFO L225 Difference]: With dead ends: 2332 [2023-11-06 22:05:17,944 INFO L226 Difference]: Without dead ends: 1266 [2023-11-06 22:05:17,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:05:17,947 INFO L413 NwaCegarLoop]: 2084 mSDtfsCounter, 1 mSDsluCounter, 4159 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6243 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:17,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6243 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:05:17,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2023-11-06 22:05:17,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1265. [2023-11-06 22:05:17,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6520351157222666) internal successors, (2070), 1253 states have internal predecessors, (2070), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:17,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2090 transitions. [2023-11-06 22:05:17,991 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2090 transitions. Word has length 546 [2023-11-06 22:05:17,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:17,992 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2090 transitions. [2023-11-06 22:05:17,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 124.75) internal successors, (499), 4 states have internal predecessors, (499), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:17,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2090 transitions. [2023-11-06 22:05:17,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2023-11-06 22:05:17,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:17,999 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:17,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:05:17,999 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:18,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:18,001 INFO L85 PathProgramCache]: Analyzing trace with hash -382532953, now seen corresponding path program 1 times [2023-11-06 22:05:18,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:18,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230676300] [2023-11-06 22:05:18,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:18,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:19,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:19,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:19,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:19,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:19,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:19,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:19,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:20,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:20,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:20,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:20,032 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:20,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:20,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230676300] [2023-11-06 22:05:20,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230676300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:20,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:20,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:05:20,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623452492] [2023-11-06 22:05:20,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:20,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:05:20,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:20,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:05:20,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:05:20,036 INFO L87 Difference]: Start difference. First operand 1265 states and 2090 transitions. Second operand has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:20,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:20,383 INFO L93 Difference]: Finished difference Result 2333 states and 3853 transitions. [2023-11-06 22:05:20,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:20,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 547 [2023-11-06 22:05:20,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:20,393 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:20,393 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:20,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:20,397 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 1809 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:20,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 3946 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:05:20,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:20,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:20,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6512370311252993) internal successors, (2069), 1253 states have internal predecessors, (2069), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:20,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2089 transitions. [2023-11-06 22:05:20,442 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2089 transitions. Word has length 547 [2023-11-06 22:05:20,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:20,443 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2089 transitions. [2023-11-06 22:05:20,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:20,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2089 transitions. [2023-11-06 22:05:20,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2023-11-06 22:05:20,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:20,450 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:20,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:05:20,451 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:20,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:20,451 INFO L85 PathProgramCache]: Analyzing trace with hash -373882595, now seen corresponding path program 1 times [2023-11-06 22:05:20,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:20,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27719789] [2023-11-06 22:05:20,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:20,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:21,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:21,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:21,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:21,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:21,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:21,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:21,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:21,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:21,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:21,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:21,938 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:21,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:21,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27719789] [2023-11-06 22:05:21,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27719789] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:21,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:21,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:21,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151941111] [2023-11-06 22:05:21,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:21,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:21,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:21,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:21,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:21,944 INFO L87 Difference]: Start difference. First operand 1265 states and 2089 transitions. Second operand has 5 states, 5 states have (on average 100.2) internal successors, (501), 5 states have internal predecessors, (501), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:22,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:22,244 INFO L93 Difference]: Finished difference Result 2337 states and 3856 transitions. [2023-11-06 22:05:22,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:05:22,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 100.2) internal successors, (501), 5 states have internal predecessors, (501), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 548 [2023-11-06 22:05:22,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:22,255 INFO L225 Difference]: With dead ends: 2337 [2023-11-06 22:05:22,256 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:22,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:05:22,260 INFO L413 NwaCegarLoop]: 2074 mSDtfsCounter, 1817 mSDsluCounter, 4057 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 6131 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:22,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1817 Valid, 6131 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:05:22,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:22,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:22,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.650438946528332) internal successors, (2068), 1253 states have internal predecessors, (2068), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:22,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2088 transitions. [2023-11-06 22:05:22,303 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2088 transitions. Word has length 548 [2023-11-06 22:05:22,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:22,304 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2088 transitions. [2023-11-06 22:05:22,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.2) internal successors, (501), 5 states have internal predecessors, (501), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:22,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2088 transitions. [2023-11-06 22:05:22,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2023-11-06 22:05:22,310 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:22,311 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:22,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:05:22,311 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:22,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:22,312 INFO L85 PathProgramCache]: Analyzing trace with hash -982905573, now seen corresponding path program 1 times [2023-11-06 22:05:22,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:22,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256808271] [2023-11-06 22:05:22,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:22,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:23,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:23,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:23,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:23,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:23,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:23,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:23,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:23,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:23,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:23,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:23,457 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:23,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:23,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256808271] [2023-11-06 22:05:23,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256808271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:23,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:23,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:23,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328533402] [2023-11-06 22:05:23,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:23,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:23,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:23,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:23,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:23,462 INFO L87 Difference]: Start difference. First operand 1265 states and 2088 transitions. Second operand has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:23,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:23,805 INFO L93 Difference]: Finished difference Result 2333 states and 3849 transitions. [2023-11-06 22:05:23,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:23,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 549 [2023-11-06 22:05:23,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:23,815 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:23,815 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:23,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:23,818 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 2059 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 3960 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:23,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2069 Valid, 3960 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:05:23,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:23,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:23,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6496408619313647) internal successors, (2067), 1253 states have internal predecessors, (2067), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:23,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2087 transitions. [2023-11-06 22:05:23,857 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2087 transitions. Word has length 549 [2023-11-06 22:05:23,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:23,858 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2087 transitions. [2023-11-06 22:05:23,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:23,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2087 transitions. [2023-11-06 22:05:23,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2023-11-06 22:05:23,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:23,864 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:23,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:05:23,865 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:23,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:23,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1199287741, now seen corresponding path program 1 times [2023-11-06 22:05:23,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:23,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798591422] [2023-11-06 22:05:23,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:23,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:25,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:25,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:25,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:25,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:25,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:25,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:25,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:25,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:25,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:25,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:25,085 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:25,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:25,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798591422] [2023-11-06 22:05:25,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798591422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:25,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:25,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:25,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662805346] [2023-11-06 22:05:25,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:25,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:25,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:25,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:25,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:25,090 INFO L87 Difference]: Start difference. First operand 1265 states and 2087 transitions. Second operand has 5 states, 5 states have (on average 100.6) internal successors, (503), 5 states have internal predecessors, (503), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:25,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:25,463 INFO L93 Difference]: Finished difference Result 2333 states and 3847 transitions. [2023-11-06 22:05:25,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:25,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 100.6) internal successors, (503), 5 states have internal predecessors, (503), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 550 [2023-11-06 22:05:25,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:25,473 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:25,474 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:25,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:25,477 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 3850 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3860 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:25,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3860 Valid, 3946 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:05:25,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:25,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:25,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6488427773343974) internal successors, (2066), 1253 states have internal predecessors, (2066), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:25,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2086 transitions. [2023-11-06 22:05:25,538 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2086 transitions. Word has length 550 [2023-11-06 22:05:25,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:25,540 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2086 transitions. [2023-11-06 22:05:25,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.6) internal successors, (503), 5 states have internal predecessors, (503), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:25,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2086 transitions. [2023-11-06 22:05:25,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2023-11-06 22:05:25,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:25,547 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:25,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:05:25,548 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:25,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:25,549 INFO L85 PathProgramCache]: Analyzing trace with hash 678975257, now seen corresponding path program 1 times [2023-11-06 22:05:25,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:25,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161679335] [2023-11-06 22:05:25,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:25,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:26,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:26,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:26,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:26,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:26,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:26,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:26,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:26,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:26,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:26,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:26,795 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:26,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:26,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161679335] [2023-11-06 22:05:26,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161679335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:26,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:26,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:26,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053194492] [2023-11-06 22:05:26,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:26,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:26,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:26,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:26,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:26,801 INFO L87 Difference]: Start difference. First operand 1265 states and 2086 transitions. Second operand has 5 states, 5 states have (on average 100.8) internal successors, (504), 5 states have internal predecessors, (504), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:27,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:27,258 INFO L93 Difference]: Finished difference Result 2333 states and 3845 transitions. [2023-11-06 22:05:27,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:27,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 100.8) internal successors, (504), 5 states have internal predecessors, (504), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 551 [2023-11-06 22:05:27,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:27,267 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:27,267 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:27,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:27,270 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 1977 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 3960 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:27,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 3960 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:05:27,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:27,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:27,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6480446927374302) internal successors, (2065), 1253 states have internal predecessors, (2065), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:27,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2085 transitions. [2023-11-06 22:05:27,309 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2085 transitions. Word has length 551 [2023-11-06 22:05:27,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:27,310 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2085 transitions. [2023-11-06 22:05:27,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.8) internal successors, (504), 5 states have internal predecessors, (504), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:27,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2085 transitions. [2023-11-06 22:05:27,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2023-11-06 22:05:27,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:27,318 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:27,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:05:27,319 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:27,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:27,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1320898413, now seen corresponding path program 1 times [2023-11-06 22:05:27,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:27,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502228946] [2023-11-06 22:05:27,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:27,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:28,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:28,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:28,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:28,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:28,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:28,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:28,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:28,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:28,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:28,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:28,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:28,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502228946] [2023-11-06 22:05:28,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502228946] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:28,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:28,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:28,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879066267] [2023-11-06 22:05:28,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:28,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:28,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:28,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:28,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:28,608 INFO L87 Difference]: Start difference. First operand 1265 states and 2085 transitions. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:28,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:28,933 INFO L93 Difference]: Finished difference Result 2333 states and 3843 transitions. [2023-11-06 22:05:28,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:28,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 552 [2023-11-06 22:05:28,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:28,942 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:28,943 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:28,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:28,946 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 1973 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1983 SdHoareTripleChecker+Valid, 3960 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:28,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1983 Valid, 3960 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:05:28,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:28,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:28,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6472466081404629) internal successors, (2064), 1253 states have internal predecessors, (2064), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:28,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2084 transitions. [2023-11-06 22:05:28,984 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2084 transitions. Word has length 552 [2023-11-06 22:05:28,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:28,985 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2084 transitions. [2023-11-06 22:05:28,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:28,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2084 transitions. [2023-11-06 22:05:28,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2023-11-06 22:05:28,993 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:28,994 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:28,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:05:28,995 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:28,995 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:28,995 INFO L85 PathProgramCache]: Analyzing trace with hash -94663491, now seen corresponding path program 1 times [2023-11-06 22:05:28,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:28,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135626440] [2023-11-06 22:05:28,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:28,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:30,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:30,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:30,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:30,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:30,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:30,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:30,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:30,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:30,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:30,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:30,190 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:30,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:30,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135626440] [2023-11-06 22:05:30,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135626440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:30,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:30,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:30,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822359897] [2023-11-06 22:05:30,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:30,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:30,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:30,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:30,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:30,196 INFO L87 Difference]: Start difference. First operand 1265 states and 2084 transitions. Second operand has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:30,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:30,527 INFO L93 Difference]: Finished difference Result 2333 states and 3841 transitions. [2023-11-06 22:05:30,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:30,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 553 [2023-11-06 22:05:30,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:30,536 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:30,536 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:30,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:30,539 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 1969 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 3960 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:30,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1979 Valid, 3960 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:05:30,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:30,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:30,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6464485235434956) internal successors, (2063), 1253 states have internal predecessors, (2063), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:30,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2083 transitions. [2023-11-06 22:05:30,574 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2083 transitions. Word has length 553 [2023-11-06 22:05:30,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:30,576 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2083 transitions. [2023-11-06 22:05:30,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:30,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2083 transitions. [2023-11-06 22:05:30,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2023-11-06 22:05:30,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:30,582 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:30,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:05:30,583 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:30,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:30,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1668946759, now seen corresponding path program 1 times [2023-11-06 22:05:30,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:30,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524207736] [2023-11-06 22:05:30,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:30,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:31,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:31,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:31,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:31,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:31,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:31,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:31,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:31,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:31,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:31,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:31,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:31,745 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:31,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:31,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524207736] [2023-11-06 22:05:31,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524207736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:31,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:31,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:31,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856410919] [2023-11-06 22:05:31,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:31,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:31,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:31,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:31,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:31,750 INFO L87 Difference]: Start difference. First operand 1265 states and 2083 transitions. Second operand has 5 states, 5 states have (on average 101.4) internal successors, (507), 5 states have internal predecessors, (507), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:32,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:32,157 INFO L93 Difference]: Finished difference Result 2333 states and 3839 transitions. [2023-11-06 22:05:32,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:32,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 101.4) internal successors, (507), 5 states have internal predecessors, (507), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 554 [2023-11-06 22:05:32,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:32,166 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:32,166 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:32,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:32,169 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 1965 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 3960 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:32,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1975 Valid, 3960 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:05:32,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:32,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:32,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6456504389465283) internal successors, (2062), 1253 states have internal predecessors, (2062), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:32,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2082 transitions. [2023-11-06 22:05:32,204 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2082 transitions. Word has length 554 [2023-11-06 22:05:32,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:32,205 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2082 transitions. [2023-11-06 22:05:32,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.4) internal successors, (507), 5 states have internal predecessors, (507), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:32,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2082 transitions. [2023-11-06 22:05:32,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2023-11-06 22:05:32,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:32,211 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:32,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:05:32,212 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:32,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:32,213 INFO L85 PathProgramCache]: Analyzing trace with hash 861322403, now seen corresponding path program 1 times [2023-11-06 22:05:32,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:32,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710736388] [2023-11-06 22:05:32,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:32,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:33,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:33,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:33,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:33,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:33,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:33,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:33,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:33,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:33,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:33,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:33,743 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:33,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:33,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710736388] [2023-11-06 22:05:33,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710736388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:33,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:33,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:33,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634488978] [2023-11-06 22:05:33,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:33,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:33,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:33,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:33,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:33,750 INFO L87 Difference]: Start difference. First operand 1265 states and 2082 transitions. Second operand has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:34,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:34,127 INFO L93 Difference]: Finished difference Result 2333 states and 3837 transitions. [2023-11-06 22:05:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:34,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 555 [2023-11-06 22:05:34,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:34,137 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:34,137 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:34,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:34,141 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 3526 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3536 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:34,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3536 Valid, 3946 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:05:34,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:34,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:34,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.644852354349561) internal successors, (2061), 1253 states have internal predecessors, (2061), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:34,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2081 transitions. [2023-11-06 22:05:34,184 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2081 transitions. Word has length 555 [2023-11-06 22:05:34,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:34,185 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2081 transitions. [2023-11-06 22:05:34,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:34,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2081 transitions. [2023-11-06 22:05:34,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2023-11-06 22:05:34,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:34,194 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:34,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 22:05:34,195 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:34,196 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:34,196 INFO L85 PathProgramCache]: Analyzing trace with hash 203322865, now seen corresponding path program 1 times [2023-11-06 22:05:34,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:34,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863528358] [2023-11-06 22:05:34,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:34,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:35,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:35,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:35,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:35,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:35,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:35,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:35,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:35,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:35,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:35,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:35,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:35,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863528358] [2023-11-06 22:05:35,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863528358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:35,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:35,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:35,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314003767] [2023-11-06 22:05:35,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:35,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:35,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:35,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:35,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:35,193 INFO L87 Difference]: Start difference. First operand 1265 states and 2081 transitions. Second operand has 5 states, 5 states have (on average 101.8) internal successors, (509), 5 states have internal predecessors, (509), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:35,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:35,521 INFO L93 Difference]: Finished difference Result 2333 states and 3835 transitions. [2023-11-06 22:05:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:35,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 101.8) internal successors, (509), 5 states have internal predecessors, (509), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 556 [2023-11-06 22:05:35,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:35,531 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:35,531 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:35,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:35,534 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 1886 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1896 SdHoareTripleChecker+Valid, 3960 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:35,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1896 Valid, 3960 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:05:35,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:35,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:35,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6440542697525937) internal successors, (2060), 1253 states have internal predecessors, (2060), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:35,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2080 transitions. [2023-11-06 22:05:35,570 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2080 transitions. Word has length 556 [2023-11-06 22:05:35,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:35,571 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2080 transitions. [2023-11-06 22:05:35,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.8) internal successors, (509), 5 states have internal predecessors, (509), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:35,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2080 transitions. [2023-11-06 22:05:35,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2023-11-06 22:05:35,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:35,578 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:35,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 22:05:35,579 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:35,579 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:35,579 INFO L85 PathProgramCache]: Analyzing trace with hash 358516347, now seen corresponding path program 1 times [2023-11-06 22:05:35,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:35,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588900853] [2023-11-06 22:05:35,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:35,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:36,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:36,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:36,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:36,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:36,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:36,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:36,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:36,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:36,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:36,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:36,884 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:36,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:36,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588900853] [2023-11-06 22:05:36,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588900853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:36,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:36,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:36,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268830676] [2023-11-06 22:05:36,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:36,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:36,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:36,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:36,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:36,890 INFO L87 Difference]: Start difference. First operand 1265 states and 2080 transitions. Second operand has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:37,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:37,226 INFO L93 Difference]: Finished difference Result 2333 states and 3833 transitions. [2023-11-06 22:05:37,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:37,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 557 [2023-11-06 22:05:37,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:37,251 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:37,258 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:37,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:37,261 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 3510 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3520 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:37,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3520 Valid, 3946 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:05:37,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:37,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:37,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6432561851556264) internal successors, (2059), 1253 states have internal predecessors, (2059), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:37,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2079 transitions. [2023-11-06 22:05:37,296 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2079 transitions. Word has length 557 [2023-11-06 22:05:37,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:37,297 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2079 transitions. [2023-11-06 22:05:37,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:37,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2079 transitions. [2023-11-06 22:05:37,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2023-11-06 22:05:37,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:37,304 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:37,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-06 22:05:37,304 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:37,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:37,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2094482355, now seen corresponding path program 1 times [2023-11-06 22:05:37,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:37,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150563365] [2023-11-06 22:05:37,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:37,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:38,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:38,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:38,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:38,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:38,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:38,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:38,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:38,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:38,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:38,485 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:38,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:38,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150563365] [2023-11-06 22:05:38,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150563365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:38,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:38,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:38,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450198408] [2023-11-06 22:05:38,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:38,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:38,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:38,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:38,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:38,490 INFO L87 Difference]: Start difference. First operand 1265 states and 2079 transitions. Second operand has 5 states, 5 states have (on average 102.2) internal successors, (511), 5 states have internal predecessors, (511), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:38,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:38,822 INFO L93 Difference]: Finished difference Result 2333 states and 3831 transitions. [2023-11-06 22:05:38,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:38,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 102.2) internal successors, (511), 5 states have internal predecessors, (511), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 558 [2023-11-06 22:05:38,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:38,828 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:38,828 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:38,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:38,831 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 1878 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1888 SdHoareTripleChecker+Valid, 3960 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:38,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1888 Valid, 3960 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:05:38,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:38,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:38,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6424581005586592) internal successors, (2058), 1253 states have internal predecessors, (2058), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:38,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2078 transitions. [2023-11-06 22:05:38,865 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2078 transitions. Word has length 558 [2023-11-06 22:05:38,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:38,866 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2078 transitions. [2023-11-06 22:05:38,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.2) internal successors, (511), 5 states have internal predecessors, (511), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:38,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2078 transitions. [2023-11-06 22:05:38,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2023-11-06 22:05:38,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:38,873 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:38,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-06 22:05:38,873 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:38,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:38,874 INFO L85 PathProgramCache]: Analyzing trace with hash -225255147, now seen corresponding path program 1 times [2023-11-06 22:05:38,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:38,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092775834] [2023-11-06 22:05:38,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:38,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:40,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:40,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:40,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:40,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:40,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:40,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:40,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:40,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:40,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:40,452 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:40,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:40,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092775834] [2023-11-06 22:05:40,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092775834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:40,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:40,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:05:40,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229857473] [2023-11-06 22:05:40,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:40,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:05:40,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:40,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:05:40,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:05:40,456 INFO L87 Difference]: Start difference. First operand 1265 states and 2078 transitions. Second operand has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:40,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:40,667 INFO L93 Difference]: Finished difference Result 2333 states and 3829 transitions. [2023-11-06 22:05:40,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:40,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 559 [2023-11-06 22:05:40,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:40,671 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:40,672 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:40,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:40,675 INFO L413 NwaCegarLoop]: 2004 mSDtfsCounter, 1718 mSDsluCounter, 2006 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 4010 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:40,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 4010 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:05:40,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:40,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:40,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6408619313647246) internal successors, (2056), 1253 states have internal predecessors, (2056), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:40,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2076 transitions. [2023-11-06 22:05:40,715 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2076 transitions. Word has length 559 [2023-11-06 22:05:40,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:40,716 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2076 transitions. [2023-11-06 22:05:40,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:40,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2076 transitions. [2023-11-06 22:05:40,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2023-11-06 22:05:40,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:40,724 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:40,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-06 22:05:40,725 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:40,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:40,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1843710553, now seen corresponding path program 1 times [2023-11-06 22:05:40,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:40,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277373120] [2023-11-06 22:05:40,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:40,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:41,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:41,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:41,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:41,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:41,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:41,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:41,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:41,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:41,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:41,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:41,855 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:41,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:41,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277373120] [2023-11-06 22:05:41,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277373120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:41,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:41,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:41,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671989246] [2023-11-06 22:05:41,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:41,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:41,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:41,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:41,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:41,859 INFO L87 Difference]: Start difference. First operand 1265 states and 2076 transitions. Second operand has 5 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:42,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:42,077 INFO L93 Difference]: Finished difference Result 2449 states and 4011 transitions. [2023-11-06 22:05:42,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:05:42,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 560 [2023-11-06 22:05:42,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:42,081 INFO L225 Difference]: With dead ends: 2449 [2023-11-06 22:05:42,082 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:42,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:05:42,084 INFO L413 NwaCegarLoop]: 2058 mSDtfsCounter, 2085 mSDsluCounter, 4072 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2085 SdHoareTripleChecker+Valid, 6130 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:42,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2085 Valid, 6130 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:05:42,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:42,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:42,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6400638467677573) internal successors, (2055), 1253 states have internal predecessors, (2055), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:42,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2075 transitions. [2023-11-06 22:05:42,117 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2075 transitions. Word has length 560 [2023-11-06 22:05:42,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:42,118 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2075 transitions. [2023-11-06 22:05:42,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:42,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2075 transitions. [2023-11-06 22:05:42,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2023-11-06 22:05:42,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:42,124 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:42,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-06 22:05:42,125 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:42,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:42,125 INFO L85 PathProgramCache]: Analyzing trace with hash 468158553, now seen corresponding path program 1 times [2023-11-06 22:05:42,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:42,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424200519] [2023-11-06 22:05:42,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:42,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:43,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:43,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:43,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:43,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:43,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:43,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:43,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:43,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:43,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:43,209 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:43,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:43,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424200519] [2023-11-06 22:05:43,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424200519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:43,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:43,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:43,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21072554] [2023-11-06 22:05:43,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:43,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:43,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:43,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:43,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:43,213 INFO L87 Difference]: Start difference. First operand 1265 states and 2075 transitions. Second operand has 5 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:43,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:43,435 INFO L93 Difference]: Finished difference Result 2333 states and 3823 transitions. [2023-11-06 22:05:43,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:43,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 561 [2023-11-06 22:05:43,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:43,443 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:43,443 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:43,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:43,446 INFO L413 NwaCegarLoop]: 2004 mSDtfsCounter, 2046 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 4024 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:43,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 4024 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:05:43,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:43,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:43,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.63926576217079) internal successors, (2054), 1253 states have internal predecessors, (2054), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:43,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2074 transitions. [2023-11-06 22:05:43,481 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2074 transitions. Word has length 561 [2023-11-06 22:05:43,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:43,482 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2074 transitions. [2023-11-06 22:05:43,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:43,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2074 transitions. [2023-11-06 22:05:43,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2023-11-06 22:05:43,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:43,489 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:43,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-06 22:05:43,490 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:43,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:43,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1091147983, now seen corresponding path program 1 times [2023-11-06 22:05:43,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:43,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648683978] [2023-11-06 22:05:43,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:43,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:44,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:44,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:44,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:44,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:44,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:44,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:44,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:44,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:44,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:44,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:44,661 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:44,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:44,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648683978] [2023-11-06 22:05:44,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648683978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:44,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:44,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:44,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139743624] [2023-11-06 22:05:44,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:44,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:44,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:44,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:44,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:44,685 INFO L87 Difference]: Start difference. First operand 1265 states and 2074 transitions. Second operand has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:44,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:44,910 INFO L93 Difference]: Finished difference Result 2333 states and 3821 transitions. [2023-11-06 22:05:44,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:44,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 562 [2023-11-06 22:05:44,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:44,916 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:44,916 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:44,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:44,919 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 1963 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 4022 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:44,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1973 Valid, 4022 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:05:44,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:44,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:44,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6384676775738227) internal successors, (2053), 1253 states have internal predecessors, (2053), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:44,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2073 transitions. [2023-11-06 22:05:44,953 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2073 transitions. Word has length 562 [2023-11-06 22:05:44,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:44,954 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2073 transitions. [2023-11-06 22:05:44,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:44,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2073 transitions. [2023-11-06 22:05:44,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2023-11-06 22:05:44,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:44,960 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:44,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-06 22:05:44,961 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:44,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:44,961 INFO L85 PathProgramCache]: Analyzing trace with hash -2086302509, now seen corresponding path program 1 times [2023-11-06 22:05:44,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:44,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390325382] [2023-11-06 22:05:44,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:44,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:45,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:45,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:45,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:45,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:45,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:45,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:45,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:45,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:45,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:45,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:45,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:45,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390325382] [2023-11-06 22:05:45,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390325382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:45,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:45,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:45,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409221721] [2023-11-06 22:05:45,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:45,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:45,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:45,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:45,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:45,985 INFO L87 Difference]: Start difference. First operand 1265 states and 2073 transitions. Second operand has 5 states, 5 states have (on average 103.2) internal successors, (516), 5 states have internal predecessors, (516), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:46,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:46,203 INFO L93 Difference]: Finished difference Result 2333 states and 3819 transitions. [2023-11-06 22:05:46,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:46,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.2) internal successors, (516), 5 states have internal predecessors, (516), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 563 [2023-11-06 22:05:46,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:46,208 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:46,209 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:46,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:46,211 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 3504 mSDsluCounter, 2005 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3514 SdHoareTripleChecker+Valid, 4008 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:46,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3514 Valid, 4008 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:05:46,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:46,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:46,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6376695929768554) internal successors, (2052), 1253 states have internal predecessors, (2052), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:46,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2072 transitions. [2023-11-06 22:05:46,245 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2072 transitions. Word has length 563 [2023-11-06 22:05:46,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:46,246 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2072 transitions. [2023-11-06 22:05:46,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.2) internal successors, (516), 5 states have internal predecessors, (516), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:46,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2072 transitions. [2023-11-06 22:05:46,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2023-11-06 22:05:46,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:46,252 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:46,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-06 22:05:46,253 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:46,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:46,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1175039537, now seen corresponding path program 1 times [2023-11-06 22:05:46,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:46,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309516988] [2023-11-06 22:05:46,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:46,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:47,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:47,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:47,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:47,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:47,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:47,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:47,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:47,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:47,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:47,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:47,292 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:47,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:47,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309516988] [2023-11-06 22:05:47,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309516988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:47,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:47,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:05:47,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109836545] [2023-11-06 22:05:47,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:47,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:05:47,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:47,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:05:47,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:47,296 INFO L87 Difference]: Start difference. First operand 1265 states and 2072 transitions. Second operand has 5 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:47,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:47,509 INFO L93 Difference]: Finished difference Result 2333 states and 3817 transitions. [2023-11-06 22:05:47,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:47,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 564 [2023-11-06 22:05:47,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:47,514 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:47,514 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:47,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:47,517 INFO L413 NwaCegarLoop]: 2004 mSDtfsCounter, 3496 mSDsluCounter, 2006 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3506 SdHoareTripleChecker+Valid, 4010 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:47,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3506 Valid, 4010 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:05:47,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:47,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:47,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6368715083798884) internal successors, (2051), 1253 states have internal predecessors, (2051), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:47,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2071 transitions. [2023-11-06 22:05:47,549 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2071 transitions. Word has length 564 [2023-11-06 22:05:47,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:47,550 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2071 transitions. [2023-11-06 22:05:47,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:47,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2071 transitions. [2023-11-06 22:05:47,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2023-11-06 22:05:47,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:47,557 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:47,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-06 22:05:47,557 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:47,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:47,558 INFO L85 PathProgramCache]: Analyzing trace with hash 918004205, now seen corresponding path program 1 times [2023-11-06 22:05:47,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:47,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365214588] [2023-11-06 22:05:47,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:47,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:49,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:49,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:49,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:49,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:49,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:49,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:49,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:49,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:49,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:49,562 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:49,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:49,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365214588] [2023-11-06 22:05:49,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365214588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:49,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:49,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:05:49,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96741460] [2023-11-06 22:05:49,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:49,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:05:49,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:49,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:05:49,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:05:49,566 INFO L87 Difference]: Start difference. First operand 1265 states and 2071 transitions. Second operand has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:49,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:49,766 INFO L93 Difference]: Finished difference Result 2333 states and 3815 transitions. [2023-11-06 22:05:49,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:49,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 565 [2023-11-06 22:05:49,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:49,770 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:49,770 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:49,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:49,773 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 1796 mSDsluCounter, 2005 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 4008 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:49,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 4008 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:05:49,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:49,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:49,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.636073423782921) internal successors, (2050), 1253 states have internal predecessors, (2050), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:49,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2070 transitions. [2023-11-06 22:05:49,813 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2070 transitions. Word has length 565 [2023-11-06 22:05:49,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:49,814 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2070 transitions. [2023-11-06 22:05:49,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:49,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2070 transitions. [2023-11-06 22:05:49,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2023-11-06 22:05:49,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:49,821 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:49,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-06 22:05:49,821 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:49,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:49,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1484537839, now seen corresponding path program 1 times [2023-11-06 22:05:49,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:49,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358180175] [2023-11-06 22:05:49,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:49,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:51,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:51,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:51,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:51,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:51,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:51,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:51,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:51,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:52,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:52,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:52,011 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:52,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:52,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358180175] [2023-11-06 22:05:52,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358180175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:52,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:52,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:05:52,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856758371] [2023-11-06 22:05:52,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:52,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:05:52,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:52,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:05:52,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:05:52,018 INFO L87 Difference]: Start difference. First operand 1265 states and 2070 transitions. Second operand has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:52,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:52,232 INFO L93 Difference]: Finished difference Result 2333 states and 3813 transitions. [2023-11-06 22:05:52,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:52,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 565 [2023-11-06 22:05:52,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:52,240 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:52,240 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:52,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:52,242 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 1710 mSDsluCounter, 2005 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 4008 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:52,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 4008 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:05:52,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:52,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:52,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6352753391859538) internal successors, (2049), 1253 states have internal predecessors, (2049), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:52,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2069 transitions. [2023-11-06 22:05:52,274 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2069 transitions. Word has length 565 [2023-11-06 22:05:52,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:52,275 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2069 transitions. [2023-11-06 22:05:52,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:52,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2069 transitions. [2023-11-06 22:05:52,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2023-11-06 22:05:52,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:52,282 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:52,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-06 22:05:52,282 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:52,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:52,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1956877485, now seen corresponding path program 1 times [2023-11-06 22:05:52,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:52,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332813108] [2023-11-06 22:05:52,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:52,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:54,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:54,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:54,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:54,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:54,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:54,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:54,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:54,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:54,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:54,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:54,350 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:54,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:54,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332813108] [2023-11-06 22:05:54,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332813108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:54,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:54,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:05:54,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213167612] [2023-11-06 22:05:54,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:54,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:05:54,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:54,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:05:54,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:05:54,355 INFO L87 Difference]: Start difference. First operand 1265 states and 2069 transitions. Second operand has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:54,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:54,552 INFO L93 Difference]: Finished difference Result 2333 states and 3811 transitions. [2023-11-06 22:05:54,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:05:54,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 565 [2023-11-06 22:05:54,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:54,557 INFO L225 Difference]: With dead ends: 2333 [2023-11-06 22:05:54,557 INFO L226 Difference]: Without dead ends: 1265 [2023-11-06 22:05:54,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:05:54,560 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 1624 mSDsluCounter, 2005 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1624 SdHoareTripleChecker+Valid, 4008 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:54,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1624 Valid, 4008 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:05:54,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-11-06 22:05:54,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2023-11-06 22:05:54,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1253 states have (on average 1.6344772545889865) internal successors, (2048), 1253 states have internal predecessors, (2048), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:05:54,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2068 transitions. [2023-11-06 22:05:54,597 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2068 transitions. Word has length 565 [2023-11-06 22:05:54,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:54,598 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2068 transitions. [2023-11-06 22:05:54,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:05:54,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2068 transitions. [2023-11-06 22:05:54,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2023-11-06 22:05:54,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:54,607 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:54,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-06 22:05:54,608 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:54,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:54,609 INFO L85 PathProgramCache]: Analyzing trace with hash -986704593, now seen corresponding path program 1 times [2023-11-06 22:05:54,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:54,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137780141] [2023-11-06 22:05:54,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:54,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:57,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:05:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:57,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:05:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:57,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:05:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:57,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-06 22:05:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:57,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 22:05:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:57,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 22:05:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:57,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-06 22:05:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:57,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-06 22:05:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:57,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-06 22:05:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:57,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-06 22:05:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:57,285 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:05:57,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:57,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137780141] [2023-11-06 22:05:57,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137780141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:57,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:57,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:05:57,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716304477] [2023-11-06 22:05:57,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:57,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:05:57,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:57,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:05:57,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:05:57,290 INFO L87 Difference]: Start difference. First operand 1265 states and 2068 transitions. Second operand has 6 states, 6 states have (on average 86.33333333333333) internal successors, (518), 6 states have internal predecessors, (518), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-06 22:05:58,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:05:58,135 INFO L93 Difference]: Finished difference Result 3433 states and 5604 transitions. [2023-11-06 22:05:58,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:05:58,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 86.33333333333333) internal successors, (518), 6 states have internal predecessors, (518), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 565 [2023-11-06 22:05:58,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:05:58,141 INFO L225 Difference]: With dead ends: 3433 [2023-11-06 22:05:58,141 INFO L226 Difference]: Without dead ends: 2348 [2023-11-06 22:05:58,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:05:58,146 INFO L413 NwaCegarLoop]: 2057 mSDtfsCounter, 1733 mSDsluCounter, 7795 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 9852 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:05:58,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1740 Valid, 9852 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:05:58,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2348 states. [2023-11-06 22:05:58,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2348 to 1334. [2023-11-06 22:05:58,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1319 states have (on average 1.6330553449583018) internal successors, (2154), 1319 states have internal predecessors, (2154), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:05:58,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 2180 transitions. [2023-11-06 22:05:58,189 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 2180 transitions. Word has length 565 [2023-11-06 22:05:58,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:05:58,190 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 2180 transitions. [2023-11-06 22:05:58,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.33333333333333) internal successors, (518), 6 states have internal predecessors, (518), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-06 22:05:58,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 2180 transitions. [2023-11-06 22:05:58,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2023-11-06 22:05:58,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:05:58,197 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:58,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-06 22:05:58,197 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:05:58,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:58,198 INFO L85 PathProgramCache]: Analyzing trace with hash 53870591, now seen corresponding path program 1 times [2023-11-06 22:05:58,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:58,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990096266] [2023-11-06 22:05:58,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:58,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:01,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:01,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:01,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:01,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-06 22:06:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:01,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-06 22:06:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:01,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-06 22:06:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:01,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-06 22:06:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:01,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-06 22:06:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:01,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-06 22:06:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:01,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-06 22:06:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:01,255 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:01,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:01,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990096266] [2023-11-06 22:06:01,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990096266] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:01,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:01,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:01,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314389359] [2023-11-06 22:06:01,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:01,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:01,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:01,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:01,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:01,259 INFO L87 Difference]: Start difference. First operand 1334 states and 2180 transitions. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:01,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:01,672 INFO L93 Difference]: Finished difference Result 2402 states and 3921 transitions. [2023-11-06 22:06:01,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:01,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 566 [2023-11-06 22:06:01,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:01,676 INFO L225 Difference]: With dead ends: 2402 [2023-11-06 22:06:01,676 INFO L226 Difference]: Without dead ends: 1334 [2023-11-06 22:06:01,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:01,679 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 1787 mSDsluCounter, 3914 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 5876 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:01,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1787 Valid, 5876 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:06:01,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2023-11-06 22:06:01,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1334. [2023-11-06 22:06:01,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1319 states have (on average 1.6322971948445792) internal successors, (2153), 1319 states have internal predecessors, (2153), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:06:01,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 2179 transitions. [2023-11-06 22:06:01,713 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 2179 transitions. Word has length 566 [2023-11-06 22:06:01,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:01,714 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 2179 transitions. [2023-11-06 22:06:01,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:01,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 2179 transitions. [2023-11-06 22:06:01,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2023-11-06 22:06:01,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:01,721 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:01,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-06 22:06:01,721 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:01,721 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:01,722 INFO L85 PathProgramCache]: Analyzing trace with hash -2076063871, now seen corresponding path program 1 times [2023-11-06 22:06:01,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:01,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258827481] [2023-11-06 22:06:01,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:01,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:03,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:03,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:03,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:03,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:03,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-06 22:06:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:03,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-06 22:06:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:03,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-06 22:06:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:03,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-06 22:06:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:03,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-06 22:06:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:03,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-06 22:06:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:03,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-06 22:06:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:03,993 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:03,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:03,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258827481] [2023-11-06 22:06:03,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258827481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:03,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:03,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:03,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999502962] [2023-11-06 22:06:03,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:03,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:03,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:03,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:03,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:03,997 INFO L87 Difference]: Start difference. First operand 1334 states and 2179 transitions. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:04,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:04,339 INFO L93 Difference]: Finished difference Result 2402 states and 3919 transitions. [2023-11-06 22:06:04,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:04,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 566 [2023-11-06 22:06:04,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:04,344 INFO L225 Difference]: With dead ends: 2402 [2023-11-06 22:06:04,344 INFO L226 Difference]: Without dead ends: 1334 [2023-11-06 22:06:04,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:04,347 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 3565 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3565 SdHoareTripleChecker+Valid, 3926 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:04,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3565 Valid, 3926 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:06:04,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2023-11-06 22:06:04,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1334. [2023-11-06 22:06:04,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1319 states have (on average 1.6315390447308566) internal successors, (2152), 1319 states have internal predecessors, (2152), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:06:04,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 2178 transitions. [2023-11-06 22:06:04,381 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 2178 transitions. Word has length 566 [2023-11-06 22:06:04,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:04,382 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 2178 transitions. [2023-11-06 22:06:04,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:04,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 2178 transitions. [2023-11-06 22:06:04,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2023-11-06 22:06:04,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:04,393 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:04,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-06 22:06:04,393 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:04,394 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:04,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1085079359, now seen corresponding path program 1 times [2023-11-06 22:06:04,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:04,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797796180] [2023-11-06 22:06:04,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:04,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-06 22:06:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-06 22:06:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-06 22:06:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-06 22:06:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-06 22:06:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-06 22:06:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-06 22:06:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,414 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:06,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:06,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797796180] [2023-11-06 22:06:06,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797796180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:06,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:06,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:06,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815481168] [2023-11-06 22:06:06,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:06,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:06,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:06,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:06,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:06,418 INFO L87 Difference]: Start difference. First operand 1334 states and 2178 transitions. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:06,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:06,753 INFO L93 Difference]: Finished difference Result 2402 states and 3917 transitions. [2023-11-06 22:06:06,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:06,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 566 [2023-11-06 22:06:06,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:06,757 INFO L225 Difference]: With dead ends: 2402 [2023-11-06 22:06:06,757 INFO L226 Difference]: Without dead ends: 1334 [2023-11-06 22:06:06,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:06,761 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 3560 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3560 SdHoareTripleChecker+Valid, 3926 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:06,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3560 Valid, 3926 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:06:06,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2023-11-06 22:06:06,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1334. [2023-11-06 22:06:06,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1319 states have (on average 1.6307808946171343) internal successors, (2151), 1319 states have internal predecessors, (2151), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:06:06,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 2177 transitions. [2023-11-06 22:06:06,799 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 2177 transitions. Word has length 566 [2023-11-06 22:06:06,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:06,800 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 2177 transitions. [2023-11-06 22:06:06,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:06,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 2177 transitions. [2023-11-06 22:06:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2023-11-06 22:06:06,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:06,807 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:06,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-06 22:06:06,807 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:06,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:06,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1241321537, now seen corresponding path program 1 times [2023-11-06 22:06:06,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:06,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118112648] [2023-11-06 22:06:06,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:06,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-06 22:06:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-06 22:06:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-06 22:06:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-06 22:06:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-06 22:06:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-06 22:06:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-06 22:06:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,578 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:08,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:08,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118112648] [2023-11-06 22:06:08,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118112648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:08,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:08,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:08,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208536093] [2023-11-06 22:06:08,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:08,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:08,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:08,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:08,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:08,582 INFO L87 Difference]: Start difference. First operand 1334 states and 2177 transitions. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:08,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:08,909 INFO L93 Difference]: Finished difference Result 2402 states and 3915 transitions. [2023-11-06 22:06:08,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:08,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 566 [2023-11-06 22:06:08,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:08,912 INFO L225 Difference]: With dead ends: 2402 [2023-11-06 22:06:08,912 INFO L226 Difference]: Without dead ends: 1334 [2023-11-06 22:06:08,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:08,915 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 1782 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1782 SdHoareTripleChecker+Valid, 3940 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:08,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1782 Valid, 3940 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:06:08,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2023-11-06 22:06:08,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1334. [2023-11-06 22:06:08,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1319 states have (on average 1.6300227445034117) internal successors, (2150), 1319 states have internal predecessors, (2150), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:06:08,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 2176 transitions. [2023-11-06 22:06:08,948 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 2176 transitions. Word has length 566 [2023-11-06 22:06:08,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:08,949 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 2176 transitions. [2023-11-06 22:06:08,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:08,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 2176 transitions. [2023-11-06 22:06:08,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2023-11-06 22:06:08,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:08,956 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:08,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-06 22:06:08,956 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:08,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:08,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1889914307, now seen corresponding path program 1 times [2023-11-06 22:06:08,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:08,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469034167] [2023-11-06 22:06:08,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:08,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:10,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:10,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:10,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:10,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-06 22:06:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:10,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-06 22:06:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:10,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-06 22:06:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:10,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-06 22:06:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:10,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-06 22:06:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:10,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-06 22:06:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:10,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-06 22:06:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:10,924 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:10,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:10,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469034167] [2023-11-06 22:06:10,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469034167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:10,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:10,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:10,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255845209] [2023-11-06 22:06:10,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:10,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:10,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:10,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:10,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:10,928 INFO L87 Difference]: Start difference. First operand 1334 states and 2176 transitions. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:11,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:11,276 INFO L93 Difference]: Finished difference Result 2402 states and 3913 transitions. [2023-11-06 22:06:11,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:11,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 566 [2023-11-06 22:06:11,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:11,281 INFO L225 Difference]: With dead ends: 2402 [2023-11-06 22:06:11,281 INFO L226 Difference]: Without dead ends: 1334 [2023-11-06 22:06:11,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:11,284 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 3471 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3471 SdHoareTripleChecker+Valid, 3926 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:11,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3471 Valid, 3926 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:06:11,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2023-11-06 22:06:11,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1334. [2023-11-06 22:06:11,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1319 states have (on average 1.629264594389689) internal successors, (2149), 1319 states have internal predecessors, (2149), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:06:11,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 2175 transitions. [2023-11-06 22:06:11,319 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 2175 transitions. Word has length 566 [2023-11-06 22:06:11,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:11,320 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 2175 transitions. [2023-11-06 22:06:11,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:11,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 2175 transitions. [2023-11-06 22:06:11,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2023-11-06 22:06:11,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:11,327 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:11,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-06 22:06:11,327 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:11,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:11,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1200082817, now seen corresponding path program 1 times [2023-11-06 22:06:11,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:11,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776250722] [2023-11-06 22:06:11,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:11,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-06 22:06:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-06 22:06:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-06 22:06:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-06 22:06:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-06 22:06:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-06 22:06:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-06 22:06:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,149 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:13,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:13,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776250722] [2023-11-06 22:06:13,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776250722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:13,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:13,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:13,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105013] [2023-11-06 22:06:13,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:13,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:13,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:13,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:13,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:13,153 INFO L87 Difference]: Start difference. First operand 1334 states and 2175 transitions. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:13,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:13,460 INFO L93 Difference]: Finished difference Result 2402 states and 3911 transitions. [2023-11-06 22:06:13,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:13,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 566 [2023-11-06 22:06:13,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:13,464 INFO L225 Difference]: With dead ends: 2402 [2023-11-06 22:06:13,464 INFO L226 Difference]: Without dead ends: 1334 [2023-11-06 22:06:13,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:13,467 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 1780 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 3940 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:13,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 3940 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:06:13,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2023-11-06 22:06:13,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1334. [2023-11-06 22:06:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1319 states have (on average 1.6285064442759667) internal successors, (2148), 1319 states have internal predecessors, (2148), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:06:13,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 2174 transitions. [2023-11-06 22:06:13,499 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 2174 transitions. Word has length 566 [2023-11-06 22:06:13,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:13,500 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 2174 transitions. [2023-11-06 22:06:13,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:13,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 2174 transitions. [2023-11-06 22:06:13,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2023-11-06 22:06:13,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:13,507 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:13,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-06 22:06:13,507 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:13,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:13,508 INFO L85 PathProgramCache]: Analyzing trace with hash 429349251, now seen corresponding path program 1 times [2023-11-06 22:06:13,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:13,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103313921] [2023-11-06 22:06:13,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:13,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:15,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:15,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:15,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:15,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-06 22:06:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:15,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-06 22:06:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:15,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-06 22:06:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:15,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-06 22:06:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:15,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-06 22:06:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:15,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-06 22:06:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:15,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-06 22:06:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:15,396 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:15,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:15,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103313921] [2023-11-06 22:06:15,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103313921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:15,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:15,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:15,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015995176] [2023-11-06 22:06:15,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:15,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:15,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:15,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:15,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:15,400 INFO L87 Difference]: Start difference. First operand 1334 states and 2174 transitions. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:15,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:15,718 INFO L93 Difference]: Finished difference Result 2402 states and 3909 transitions. [2023-11-06 22:06:15,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:15,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 566 [2023-11-06 22:06:15,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:15,721 INFO L225 Difference]: With dead ends: 2402 [2023-11-06 22:06:15,722 INFO L226 Difference]: Without dead ends: 1334 [2023-11-06 22:06:15,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:15,724 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 3382 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3382 SdHoareTripleChecker+Valid, 3926 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:15,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3382 Valid, 3926 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:06:15,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2023-11-06 22:06:15,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1334. [2023-11-06 22:06:15,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1319 states have (on average 1.627748294162244) internal successors, (2147), 1319 states have internal predecessors, (2147), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:06:15,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 2173 transitions. [2023-11-06 22:06:15,758 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 2173 transitions. Word has length 566 [2023-11-06 22:06:15,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:15,759 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 2173 transitions. [2023-11-06 22:06:15,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:15,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 2173 transitions. [2023-11-06 22:06:15,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2023-11-06 22:06:15,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:15,766 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:15,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-06 22:06:15,766 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:15,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:15,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1754205445, now seen corresponding path program 1 times [2023-11-06 22:06:15,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:15,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310873499] [2023-11-06 22:06:15,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:15,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:18,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:18,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:18,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:18,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-06 22:06:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:18,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-06 22:06:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:18,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-06 22:06:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:18,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-06 22:06:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:18,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-06 22:06:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:18,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-06 22:06:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:18,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-06 22:06:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:18,834 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:18,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:18,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310873499] [2023-11-06 22:06:18,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310873499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:18,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:18,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:06:18,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628886156] [2023-11-06 22:06:18,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:18,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:06:18,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:18,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:06:18,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:18,838 INFO L87 Difference]: Start difference. First operand 1334 states and 2173 transitions. Second operand has 6 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:06:20,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:20,779 INFO L93 Difference]: Finished difference Result 3416 states and 5556 transitions. [2023-11-06 22:06:20,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:06:20,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 566 [2023-11-06 22:06:20,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:20,788 INFO L225 Difference]: With dead ends: 3416 [2023-11-06 22:06:20,789 INFO L226 Difference]: Without dead ends: 2348 [2023-11-06 22:06:20,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:06:20,792 INFO L413 NwaCegarLoop]: 1622 mSDtfsCounter, 3608 mSDsluCounter, 4814 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3625 SdHoareTripleChecker+Valid, 6436 SdHoareTripleChecker+Invalid, 1777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:20,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3625 Valid, 6436 Invalid, 1777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-06 22:06:20,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2348 states. [2023-11-06 22:06:20,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2348 to 1335. [2023-11-06 22:06:20,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1320 states have (on average 1.6272727272727272) internal successors, (2148), 1320 states have internal predecessors, (2148), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:06:20,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 2174 transitions. [2023-11-06 22:06:20,832 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 2174 transitions. Word has length 566 [2023-11-06 22:06:20,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:20,833 INFO L495 AbstractCegarLoop]: Abstraction has 1335 states and 2174 transitions. [2023-11-06 22:06:20,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:06:20,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 2174 transitions. [2023-11-06 22:06:20,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2023-11-06 22:06:20,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:20,840 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:20,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-06 22:06:20,840 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:20,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:20,841 INFO L85 PathProgramCache]: Analyzing trace with hash -615944893, now seen corresponding path program 1 times [2023-11-06 22:06:20,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:20,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830201057] [2023-11-06 22:06:20,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:20,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:24,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:24,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:24,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:24,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-06 22:06:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:24,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-06 22:06:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:24,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-06 22:06:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:24,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-06 22:06:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:24,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-06 22:06:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:24,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-06 22:06:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:24,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-06 22:06:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:24,726 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:24,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:24,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830201057] [2023-11-06 22:06:24,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830201057] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:24,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:24,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:24,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79249400] [2023-11-06 22:06:24,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:24,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:24,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:24,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:24,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:24,730 INFO L87 Difference]: Start difference. First operand 1335 states and 2174 transitions. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:06:25,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:25,891 INFO L93 Difference]: Finished difference Result 2407 states and 3914 transitions. [2023-11-06 22:06:25,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:06:25,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 566 [2023-11-06 22:06:25,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:25,896 INFO L225 Difference]: With dead ends: 2407 [2023-11-06 22:06:25,897 INFO L226 Difference]: Without dead ends: 1339 [2023-11-06 22:06:25,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:25,899 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 1789 mSDsluCounter, 3207 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1792 SdHoareTripleChecker+Valid, 4831 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:25,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1792 Valid, 4831 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-06 22:06:25,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2023-11-06 22:06:25,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1337. [2023-11-06 22:06:25,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1322 states have (on average 1.626323751891074) internal successors, (2150), 1322 states have internal predecessors, (2150), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:06:25,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 2176 transitions. [2023-11-06 22:06:25,936 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 2176 transitions. Word has length 566 [2023-11-06 22:06:25,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:25,937 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 2176 transitions. [2023-11-06 22:06:25,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:06:25,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 2176 transitions. [2023-11-06 22:06:25,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2023-11-06 22:06:25,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:25,944 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:25,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-11-06 22:06:25,944 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:25,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:25,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1482621571, now seen corresponding path program 1 times [2023-11-06 22:06:25,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:25,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934087496] [2023-11-06 22:06:25,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:25,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:29,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:29,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:29,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:29,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-06 22:06:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:29,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-06 22:06:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:29,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-06 22:06:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:29,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-06 22:06:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:29,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-06 22:06:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:29,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-06 22:06:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:29,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-06 22:06:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:29,395 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:29,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:29,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934087496] [2023-11-06 22:06:29,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934087496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:29,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:29,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:06:29,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461929985] [2023-11-06 22:06:29,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:29,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:06:29,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:29,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:06:29,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:06:29,399 INFO L87 Difference]: Start difference. First operand 1337 states and 2176 transitions. Second operand has 9 states, 9 states have (on average 57.77777777777778) internal successors, (520), 9 states have internal predecessors, (520), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:06:33,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:33,762 INFO L93 Difference]: Finished difference Result 4551 states and 7394 transitions. [2023-11-06 22:06:33,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:06:33,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 57.77777777777778) internal successors, (520), 9 states have internal predecessors, (520), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 567 [2023-11-06 22:06:33,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:33,774 INFO L225 Difference]: With dead ends: 4551 [2023-11-06 22:06:33,775 INFO L226 Difference]: Without dead ends: 3481 [2023-11-06 22:06:33,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:06:33,778 INFO L413 NwaCegarLoop]: 2940 mSDtfsCounter, 5585 mSDsluCounter, 15014 mSDsCounter, 0 mSdLazyCounter, 5518 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5605 SdHoareTripleChecker+Valid, 17954 SdHoareTripleChecker+Invalid, 5537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 5518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:33,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5605 Valid, 17954 Invalid, 5537 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 5518 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-06 22:06:33,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3481 states. [2023-11-06 22:06:33,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3481 to 1345. [2023-11-06 22:06:33,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1330 states have (on average 1.624812030075188) internal successors, (2161), 1330 states have internal predecessors, (2161), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:06:33,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 2187 transitions. [2023-11-06 22:06:33,829 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 2187 transitions. Word has length 567 [2023-11-06 22:06:33,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:33,829 INFO L495 AbstractCegarLoop]: Abstraction has 1345 states and 2187 transitions. [2023-11-06 22:06:33,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 57.77777777777778) internal successors, (520), 9 states have internal predecessors, (520), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:06:33,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 2187 transitions. [2023-11-06 22:06:33,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2023-11-06 22:06:33,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:33,836 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:33,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-11-06 22:06:33,836 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:33,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:33,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1047373013, now seen corresponding path program 1 times [2023-11-06 22:06:33,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:33,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943002849] [2023-11-06 22:06:33,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:33,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:34,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:34,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:34,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:34,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:06:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:34,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:06:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:34,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:06:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:34,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:06:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:34,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:06:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:34,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:06:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:34,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:06:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:34,815 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:34,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:34,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943002849] [2023-11-06 22:06:34,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943002849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:34,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:34,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:06:34,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420747708] [2023-11-06 22:06:34,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:34,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:06:34,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:34,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:06:34,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:06:34,818 INFO L87 Difference]: Start difference. First operand 1345 states and 2187 transitions. Second operand has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:06:34,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:34,898 INFO L93 Difference]: Finished difference Result 2426 states and 3938 transitions. [2023-11-06 22:06:34,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:34,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 568 [2023-11-06 22:06:34,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:34,902 INFO L225 Difference]: With dead ends: 2426 [2023-11-06 22:06:34,902 INFO L226 Difference]: Without dead ends: 1348 [2023-11-06 22:06:34,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:06:34,904 INFO L413 NwaCegarLoop]: 2055 mSDtfsCounter, 1 mSDsluCounter, 4079 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:34,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6134 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:34,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2023-11-06 22:06:34,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1347. [2023-11-06 22:06:34,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1332 states have (on average 1.6238738738738738) internal successors, (2163), 1332 states have internal predecessors, (2163), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:06:34,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 2189 transitions. [2023-11-06 22:06:34,941 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 2189 transitions. Word has length 568 [2023-11-06 22:06:34,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:34,941 INFO L495 AbstractCegarLoop]: Abstraction has 1347 states and 2189 transitions. [2023-11-06 22:06:34,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:06:34,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 2189 transitions. [2023-11-06 22:06:34,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2023-11-06 22:06:34,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:34,948 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:34,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-11-06 22:06:34,948 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:34,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:34,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1394079993, now seen corresponding path program 1 times [2023-11-06 22:06:34,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:34,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394853620] [2023-11-06 22:06:34,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:34,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:37,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:37,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:37,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:06:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:37,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:06:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:37,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:06:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:37,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:06:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:37,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:06:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:37,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:06:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:37,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:06:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:37,881 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:37,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:37,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394853620] [2023-11-06 22:06:37,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394853620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:37,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:37,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:06:37,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413883217] [2023-11-06 22:06:37,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:37,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:06:37,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:37,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:06:37,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:06:37,885 INFO L87 Difference]: Start difference. First operand 1347 states and 2189 transitions. Second operand has 7 states, 7 states have (on average 74.42857142857143) internal successors, (521), 7 states have internal predecessors, (521), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:06:38,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:38,418 INFO L93 Difference]: Finished difference Result 4565 states and 7407 transitions. [2023-11-06 22:06:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:06:38,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 74.42857142857143) internal successors, (521), 7 states have internal predecessors, (521), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 568 [2023-11-06 22:06:38,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:38,425 INFO L225 Difference]: With dead ends: 4565 [2023-11-06 22:06:38,425 INFO L226 Difference]: Without dead ends: 3485 [2023-11-06 22:06:38,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:06:38,429 INFO L413 NwaCegarLoop]: 5251 mSDtfsCounter, 5479 mSDsluCounter, 16117 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5496 SdHoareTripleChecker+Valid, 21368 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:38,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5496 Valid, 21368 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:06:38,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3485 states. [2023-11-06 22:06:38,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3485 to 1347. [2023-11-06 22:06:38,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1332 states have (on average 1.6231231231231231) internal successors, (2162), 1332 states have internal predecessors, (2162), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:06:38,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 2188 transitions. [2023-11-06 22:06:38,486 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 2188 transitions. Word has length 568 [2023-11-06 22:06:38,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:38,487 INFO L495 AbstractCegarLoop]: Abstraction has 1347 states and 2188 transitions. [2023-11-06 22:06:38,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.42857142857143) internal successors, (521), 7 states have internal predecessors, (521), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:06:38,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 2188 transitions. [2023-11-06 22:06:38,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2023-11-06 22:06:38,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:38,501 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:38,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-11-06 22:06:38,502 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:38,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:38,503 INFO L85 PathProgramCache]: Analyzing trace with hash -536869981, now seen corresponding path program 1 times [2023-11-06 22:06:38,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:38,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523736338] [2023-11-06 22:06:38,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:38,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:42,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:42,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:42,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:42,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:06:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:42,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:06:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:42,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:06:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:42,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:06:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:42,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:06:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:42,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:06:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:42,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:06:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:42,187 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:42,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:42,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523736338] [2023-11-06 22:06:42,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523736338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:42,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:42,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:42,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846792202] [2023-11-06 22:06:42,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:42,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:42,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:42,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:42,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:42,190 INFO L87 Difference]: Start difference. First operand 1347 states and 2188 transitions. Second operand has 5 states, 5 states have (on average 104.2) internal successors, (521), 5 states have internal predecessors, (521), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:06:43,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:43,464 INFO L93 Difference]: Finished difference Result 2431 states and 3942 transitions. [2023-11-06 22:06:43,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:06:43,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 104.2) internal successors, (521), 5 states have internal predecessors, (521), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 568 [2023-11-06 22:06:43,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:43,467 INFO L225 Difference]: With dead ends: 2431 [2023-11-06 22:06:43,467 INFO L226 Difference]: Without dead ends: 1351 [2023-11-06 22:06:43,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:43,469 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 1873 mSDsluCounter, 3207 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1876 SdHoareTripleChecker+Valid, 4831 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:43,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1876 Valid, 4831 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-06 22:06:43,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2023-11-06 22:06:43,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1349. [2023-11-06 22:06:43,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1334 states have (on average 1.6221889055472263) internal successors, (2164), 1334 states have internal predecessors, (2164), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:06:43,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 2190 transitions. [2023-11-06 22:06:43,506 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 2190 transitions. Word has length 568 [2023-11-06 22:06:43,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:43,507 INFO L495 AbstractCegarLoop]: Abstraction has 1349 states and 2190 transitions. [2023-11-06 22:06:43,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.2) internal successors, (521), 5 states have internal predecessors, (521), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:06:43,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 2190 transitions. [2023-11-06 22:06:43,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2023-11-06 22:06:43,513 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:43,513 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:43,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-11-06 22:06:43,514 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:43,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:43,514 INFO L85 PathProgramCache]: Analyzing trace with hash 668248513, now seen corresponding path program 1 times [2023-11-06 22:06:43,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:43,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829683486] [2023-11-06 22:06:43,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:43,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:48,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:48,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:48,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:48,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:06:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:48,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:06:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:48,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:06:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:48,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:06:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:48,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:06:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:48,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:06:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:48,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:06:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:48,081 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:48,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:48,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829683486] [2023-11-06 22:06:48,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829683486] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:48,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:48,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:48,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26761113] [2023-11-06 22:06:48,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:48,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:48,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:48,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:48,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:48,088 INFO L87 Difference]: Start difference. First operand 1349 states and 2190 transitions. Second operand has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:48,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:48,310 INFO L93 Difference]: Finished difference Result 4245 states and 6843 transitions. [2023-11-06 22:06:48,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:06:48,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 569 [2023-11-06 22:06:48,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:48,316 INFO L225 Difference]: With dead ends: 4245 [2023-11-06 22:06:48,316 INFO L226 Difference]: Without dead ends: 3163 [2023-11-06 22:06:48,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:06:48,329 INFO L413 NwaCegarLoop]: 2898 mSDtfsCounter, 3719 mSDsluCounter, 7587 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3719 SdHoareTripleChecker+Valid, 10485 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:48,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3719 Valid, 10485 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:06:48,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2023-11-06 22:06:48,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 1718. [2023-11-06 22:06:48,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1718 states, 1703 states have (on average 1.6106870229007633) internal successors, (2743), 1703 states have internal predecessors, (2743), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:06:48,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 2769 transitions. [2023-11-06 22:06:48,388 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 2769 transitions. Word has length 569 [2023-11-06 22:06:48,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:48,391 INFO L495 AbstractCegarLoop]: Abstraction has 1718 states and 2769 transitions. [2023-11-06 22:06:48,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:48,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 2769 transitions. [2023-11-06 22:06:48,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2023-11-06 22:06:48,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:48,398 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:48,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-11-06 22:06:48,398 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:48,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:48,399 INFO L85 PathProgramCache]: Analyzing trace with hash 840777071, now seen corresponding path program 1 times [2023-11-06 22:06:48,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:48,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639137497] [2023-11-06 22:06:48,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:48,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:54,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:54,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:54,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:54,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:06:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:54,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:06:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:54,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:06:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:06:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:54,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:06:54,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:54,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:06:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:54,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:06:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:54,186 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:06:54,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:54,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639137497] [2023-11-06 22:06:54,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639137497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:54,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:54,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:06:54,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809242012] [2023-11-06 22:06:54,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:54,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:06:54,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:54,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:06:54,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:06:54,190 INFO L87 Difference]: Start difference. First operand 1718 states and 2769 transitions. Second operand has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:54,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:54,842 INFO L93 Difference]: Finished difference Result 6201 states and 9976 transitions. [2023-11-06 22:06:54,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:06:54,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 570 [2023-11-06 22:06:54,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:54,849 INFO L225 Difference]: With dead ends: 6201 [2023-11-06 22:06:54,850 INFO L226 Difference]: Without dead ends: 4750 [2023-11-06 22:06:54,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:06:54,853 INFO L413 NwaCegarLoop]: 2865 mSDtfsCounter, 11225 mSDsluCounter, 9193 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11235 SdHoareTripleChecker+Valid, 12058 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:54,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11235 Valid, 12058 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:06:54,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4750 states. [2023-11-06 22:06:54,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4750 to 2636. [2023-11-06 22:06:54,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2611 states have (on average 1.5978552278820375) internal successors, (4172), 2611 states have internal predecessors, (4172), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:06:54,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4218 transitions. [2023-11-06 22:06:54,945 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4218 transitions. Word has length 570 [2023-11-06 22:06:54,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:54,946 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4218 transitions. [2023-11-06 22:06:54,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:06:54,946 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4218 transitions. [2023-11-06 22:06:54,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1350 [2023-11-06 22:06:54,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:54,970 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:06:54,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-11-06 22:06:54,971 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:54,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:54,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1268020012, now seen corresponding path program 1 times [2023-11-06 22:06:54,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:54,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098863553] [2023-11-06 22:06:54,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:54,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:06:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:06:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:06:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:06:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:06:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:06:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:06:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:06:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:06:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:06:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 925 [2023-11-06 22:06:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 939 [2023-11-06 22:06:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2023-11-06 22:06:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 972 [2023-11-06 22:06:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 991 [2023-11-06 22:06:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1007 [2023-11-06 22:06:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1017 [2023-11-06 22:06:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2023-11-06 22:06:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1041 [2023-11-06 22:06:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1053 [2023-11-06 22:06:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:59,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-06 22:06:59,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:59,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098863553] [2023-11-06 22:06:59,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098863553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:59,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:59,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:59,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391093037] [2023-11-06 22:06:59,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:59,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:59,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:59,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:59,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:59,640 INFO L87 Difference]: Start difference. First operand 2636 states and 4218 transitions. Second operand has 5 states, 5 states have (on average 250.4) internal successors, (1252), 5 states have internal predecessors, (1252), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:06:59,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:59,962 INFO L93 Difference]: Finished difference Result 4087 states and 6547 transitions. [2023-11-06 22:06:59,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:59,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 250.4) internal successors, (1252), 5 states have internal predecessors, (1252), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 1349 [2023-11-06 22:06:59,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:59,967 INFO L225 Difference]: With dead ends: 4087 [2023-11-06 22:06:59,967 INFO L226 Difference]: Without dead ends: 2636 [2023-11-06 22:06:59,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:59,973 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 3198 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3208 SdHoareTripleChecker+Valid, 3926 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:59,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3208 Valid, 3926 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:06:59,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-06 22:07:00,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2023-11-06 22:07:00,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2611 states have (on average 1.5974722328609727) internal successors, (4171), 2611 states have internal predecessors, (4171), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:07:00,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4217 transitions. [2023-11-06 22:07:00,060 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4217 transitions. Word has length 1349 [2023-11-06 22:07:00,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:00,061 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4217 transitions. [2023-11-06 22:07:00,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 250.4) internal successors, (1252), 5 states have internal predecessors, (1252), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:00,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4217 transitions. [2023-11-06 22:07:00,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1351 [2023-11-06 22:07:00,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:00,087 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:07:00,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-11-06 22:07:00,088 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:00,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:00,089 INFO L85 PathProgramCache]: Analyzing trace with hash -264733776, now seen corresponding path program 1 times [2023-11-06 22:07:00,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:00,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026049075] [2023-11-06 22:07:00,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:00,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:07:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:07:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:07:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:07:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:07:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:07:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:07:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:07:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:07:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:07:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 926 [2023-11-06 22:07:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2023-11-06 22:07:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2023-11-06 22:07:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2023-11-06 22:07:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 992 [2023-11-06 22:07:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1008 [2023-11-06 22:07:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1018 [2023-11-06 22:07:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1030 [2023-11-06 22:07:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1042 [2023-11-06 22:07:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1054 [2023-11-06 22:07:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-06 22:07:03,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:03,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026049075] [2023-11-06 22:07:03,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026049075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:03,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:03,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:03,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325162059] [2023-11-06 22:07:03,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:03,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:03,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:03,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:03,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:03,441 INFO L87 Difference]: Start difference. First operand 2636 states and 4217 transitions. Second operand has 5 states, 5 states have (on average 250.6) internal successors, (1253), 5 states have internal predecessors, (1253), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:03,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:03,721 INFO L93 Difference]: Finished difference Result 4087 states and 6545 transitions. [2023-11-06 22:07:03,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:07:03,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 250.6) internal successors, (1253), 5 states have internal predecessors, (1253), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 1350 [2023-11-06 22:07:03,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:03,725 INFO L225 Difference]: With dead ends: 4087 [2023-11-06 22:07:03,725 INFO L226 Difference]: Without dead ends: 2636 [2023-11-06 22:07:03,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:03,727 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 3182 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3192 SdHoareTripleChecker+Valid, 3926 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:03,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3192 Valid, 3926 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:07:03,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-06 22:07:03,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2023-11-06 22:07:03,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2611 states have (on average 1.597089237839908) internal successors, (4170), 2611 states have internal predecessors, (4170), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:07:03,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4216 transitions. [2023-11-06 22:07:03,807 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4216 transitions. Word has length 1350 [2023-11-06 22:07:03,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:03,808 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4216 transitions. [2023-11-06 22:07:03,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 250.6) internal successors, (1253), 5 states have internal predecessors, (1253), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:03,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4216 transitions. [2023-11-06 22:07:03,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1352 [2023-11-06 22:07:03,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:03,834 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:07:03,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-11-06 22:07:03,835 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:03,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:03,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1919562274, now seen corresponding path program 1 times [2023-11-06 22:07:03,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:03,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663488403] [2023-11-06 22:07:03,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:03,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:07:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:07:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:07:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:07:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:07:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:07:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:07:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:07:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:07:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:07:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 927 [2023-11-06 22:07:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 941 [2023-11-06 22:07:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2023-11-06 22:07:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 974 [2023-11-06 22:07:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 993 [2023-11-06 22:07:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1009 [2023-11-06 22:07:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1019 [2023-11-06 22:07:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1031 [2023-11-06 22:07:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1043 [2023-11-06 22:07:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1055 [2023-11-06 22:07:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:07,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-06 22:07:07,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:07,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663488403] [2023-11-06 22:07:07,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663488403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:07,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:07,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:07,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263513241] [2023-11-06 22:07:07,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:07,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:07,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:07,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:07,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:07,625 INFO L87 Difference]: Start difference. First operand 2636 states and 4216 transitions. Second operand has 5 states, 5 states have (on average 250.8) internal successors, (1254), 5 states have internal predecessors, (1254), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:07,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:07,916 INFO L93 Difference]: Finished difference Result 4087 states and 6543 transitions. [2023-11-06 22:07:07,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:07:07,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 250.8) internal successors, (1254), 5 states have internal predecessors, (1254), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 1351 [2023-11-06 22:07:07,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:07,920 INFO L225 Difference]: With dead ends: 4087 [2023-11-06 22:07:07,920 INFO L226 Difference]: Without dead ends: 2636 [2023-11-06 22:07:07,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:07,922 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 1712 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 3940 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:07,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 3940 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:07:07,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-06 22:07:07,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2023-11-06 22:07:07,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2611 states have (on average 1.5967062428188434) internal successors, (4169), 2611 states have internal predecessors, (4169), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:07:08,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4215 transitions. [2023-11-06 22:07:08,001 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4215 transitions. Word has length 1351 [2023-11-06 22:07:08,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:08,002 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4215 transitions. [2023-11-06 22:07:08,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 250.8) internal successors, (1254), 5 states have internal predecessors, (1254), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:08,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4215 transitions. [2023-11-06 22:07:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1353 [2023-11-06 22:07:08,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:08,029 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:07:08,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-11-06 22:07:08,030 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:08,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:08,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1495996706, now seen corresponding path program 1 times [2023-11-06 22:07:08,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:08,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895220611] [2023-11-06 22:07:08,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:08,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:07:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:07:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:07:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:07:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:07:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:07:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:07:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:07:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:07:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:07:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 928 [2023-11-06 22:07:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 942 [2023-11-06 22:07:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 956 [2023-11-06 22:07:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2023-11-06 22:07:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 994 [2023-11-06 22:07:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1010 [2023-11-06 22:07:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1020 [2023-11-06 22:07:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1032 [2023-11-06 22:07:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1044 [2023-11-06 22:07:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1056 [2023-11-06 22:07:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-06 22:07:11,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:11,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895220611] [2023-11-06 22:07:11,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895220611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:11,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:11,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:11,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522518822] [2023-11-06 22:07:11,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:11,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:11,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:11,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:11,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:11,659 INFO L87 Difference]: Start difference. First operand 2636 states and 4215 transitions. Second operand has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:11,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:11,916 INFO L93 Difference]: Finished difference Result 4087 states and 6541 transitions. [2023-11-06 22:07:11,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:07:11,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 1352 [2023-11-06 22:07:11,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:11,919 INFO L225 Difference]: With dead ends: 4087 [2023-11-06 22:07:11,919 INFO L226 Difference]: Without dead ends: 2636 [2023-11-06 22:07:11,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:11,921 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 3150 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3160 SdHoareTripleChecker+Valid, 3926 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:11,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3160 Valid, 3926 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:07:11,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-06 22:07:11,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2023-11-06 22:07:11,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2611 states have (on average 1.5963232477977787) internal successors, (4168), 2611 states have internal predecessors, (4168), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:07:11,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4214 transitions. [2023-11-06 22:07:11,999 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4214 transitions. Word has length 1352 [2023-11-06 22:07:11,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:12,000 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4214 transitions. [2023-11-06 22:07:12,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:12,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4214 transitions. [2023-11-06 22:07:12,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1354 [2023-11-06 22:07:12,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:12,022 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:07:12,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-11-06 22:07:12,023 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:12,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:12,023 INFO L85 PathProgramCache]: Analyzing trace with hash 298302352, now seen corresponding path program 1 times [2023-11-06 22:07:12,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:12,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432623418] [2023-11-06 22:07:12,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:12,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:07:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:07:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:07:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:07:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:07:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:07:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:07:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:07:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:07:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:07:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 929 [2023-11-06 22:07:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 943 [2023-11-06 22:07:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 957 [2023-11-06 22:07:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 976 [2023-11-06 22:07:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 995 [2023-11-06 22:07:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1011 [2023-11-06 22:07:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1021 [2023-11-06 22:07:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1033 [2023-11-06 22:07:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1045 [2023-11-06 22:07:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1057 [2023-11-06 22:07:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-06 22:07:15,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:15,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432623418] [2023-11-06 22:07:15,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432623418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:15,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:15,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:15,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684491083] [2023-11-06 22:07:15,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:15,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:15,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:15,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:15,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:15,450 INFO L87 Difference]: Start difference. First operand 2636 states and 4214 transitions. Second operand has 5 states, 5 states have (on average 251.2) internal successors, (1256), 5 states have internal predecessors, (1256), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:15,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:15,661 INFO L93 Difference]: Finished difference Result 4087 states and 6539 transitions. [2023-11-06 22:07:15,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:07:15,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 251.2) internal successors, (1256), 5 states have internal predecessors, (1256), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 1353 [2023-11-06 22:07:15,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:15,665 INFO L225 Difference]: With dead ends: 4087 [2023-11-06 22:07:15,665 INFO L226 Difference]: Without dead ends: 2636 [2023-11-06 22:07:15,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:15,667 INFO L413 NwaCegarLoop]: 1993 mSDtfsCounter, 1690 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 4002 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:15,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1700 Valid, 4002 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:07:15,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-06 22:07:15,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2023-11-06 22:07:15,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2611 states have (on average 1.595940252776714) internal successors, (4167), 2611 states have internal predecessors, (4167), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:07:15,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4213 transitions. [2023-11-06 22:07:15,732 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4213 transitions. Word has length 1353 [2023-11-06 22:07:15,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:15,732 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4213 transitions. [2023-11-06 22:07:15,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 251.2) internal successors, (1256), 5 states have internal predecessors, (1256), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:15,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4213 transitions. [2023-11-06 22:07:15,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1355 [2023-11-06 22:07:15,753 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:15,755 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:07:15,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-11-06 22:07:15,755 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:15,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:15,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1536702868, now seen corresponding path program 1 times [2023-11-06 22:07:15,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:15,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58836413] [2023-11-06 22:07:15,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:15,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:07:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:07:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:07:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:07:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:07:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:07:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:07:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:07:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:07:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:07:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2023-11-06 22:07:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 944 [2023-11-06 22:07:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 958 [2023-11-06 22:07:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 977 [2023-11-06 22:07:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 996 [2023-11-06 22:07:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1012 [2023-11-06 22:07:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1022 [2023-11-06 22:07:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1034 [2023-11-06 22:07:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1046 [2023-11-06 22:07:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1058 [2023-11-06 22:07:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-06 22:07:19,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:19,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58836413] [2023-11-06 22:07:19,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58836413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:19,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:19,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:19,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090948788] [2023-11-06 22:07:19,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:19,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:19,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:19,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:19,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:19,245 INFO L87 Difference]: Start difference. First operand 2636 states and 4213 transitions. Second operand has 5 states, 5 states have (on average 251.4) internal successors, (1257), 5 states have internal predecessors, (1257), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:19,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:19,461 INFO L93 Difference]: Finished difference Result 4087 states and 6537 transitions. [2023-11-06 22:07:19,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:07:19,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 251.4) internal successors, (1257), 5 states have internal predecessors, (1257), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 1354 [2023-11-06 22:07:19,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:19,464 INFO L225 Difference]: With dead ends: 4087 [2023-11-06 22:07:19,464 INFO L226 Difference]: Without dead ends: 2636 [2023-11-06 22:07:19,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:19,466 INFO L413 NwaCegarLoop]: 1992 mSDtfsCounter, 1682 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 4000 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:19,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 4000 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:07:19,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-06 22:07:19,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2023-11-06 22:07:19,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2611 states have (on average 1.5955572577556492) internal successors, (4166), 2611 states have internal predecessors, (4166), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:07:19,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4212 transitions. [2023-11-06 22:07:19,519 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4212 transitions. Word has length 1354 [2023-11-06 22:07:19,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:19,520 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4212 transitions. [2023-11-06 22:07:19,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 251.4) internal successors, (1257), 5 states have internal predecessors, (1257), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:19,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4212 transitions. [2023-11-06 22:07:19,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1356 [2023-11-06 22:07:19,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:19,543 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:07:19,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-11-06 22:07:19,543 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:19,544 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:19,544 INFO L85 PathProgramCache]: Analyzing trace with hash 933805122, now seen corresponding path program 1 times [2023-11-06 22:07:19,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:19,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214740412] [2023-11-06 22:07:19,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:19,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:07:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:07:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:07:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:07:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:07:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:07:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:07:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:07:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:07:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:07:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 931 [2023-11-06 22:07:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 945 [2023-11-06 22:07:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 959 [2023-11-06 22:07:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 978 [2023-11-06 22:07:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2023-11-06 22:07:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1013 [2023-11-06 22:07:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1023 [2023-11-06 22:07:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1035 [2023-11-06 22:07:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1047 [2023-11-06 22:07:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1059 [2023-11-06 22:07:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:23,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-06 22:07:23,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:23,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214740412] [2023-11-06 22:07:23,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214740412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:23,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:23,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:23,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959736043] [2023-11-06 22:07:23,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:23,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:23,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:23,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:23,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:23,512 INFO L87 Difference]: Start difference. First operand 2636 states and 4212 transitions. Second operand has 5 states, 5 states have (on average 251.6) internal successors, (1258), 5 states have internal predecessors, (1258), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-06 22:07:24,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:24,369 INFO L93 Difference]: Finished difference Result 4087 states and 6535 transitions. [2023-11-06 22:07:24,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:07:24,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 251.6) internal successors, (1258), 5 states have internal predecessors, (1258), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 1355 [2023-11-06 22:07:24,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:24,373 INFO L225 Difference]: With dead ends: 4087 [2023-11-06 22:07:24,373 INFO L226 Difference]: Without dead ends: 2636 [2023-11-06 22:07:24,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:24,376 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 3009 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3012 SdHoareTripleChecker+Valid, 3200 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:24,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3012 Valid, 3200 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 22:07:24,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-06 22:07:24,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2023-11-06 22:07:24,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2611 states have (on average 1.5951742627345844) internal successors, (4165), 2611 states have internal predecessors, (4165), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:07:24,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4211 transitions. [2023-11-06 22:07:24,446 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4211 transitions. Word has length 1355 [2023-11-06 22:07:24,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:24,447 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4211 transitions. [2023-11-06 22:07:24,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 251.6) internal successors, (1258), 5 states have internal predecessors, (1258), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-06 22:07:24,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4211 transitions. [2023-11-06 22:07:24,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1357 [2023-11-06 22:07:24,468 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:24,469 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:07:24,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-11-06 22:07:24,469 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:24,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:24,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1320312070, now seen corresponding path program 1 times [2023-11-06 22:07:24,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:24,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31657139] [2023-11-06 22:07:24,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:24,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:07:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:07:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:07:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:07:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:07:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:07:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:07:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:07:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:07:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:07:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2023-11-06 22:07:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 946 [2023-11-06 22:07:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 960 [2023-11-06 22:07:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 979 [2023-11-06 22:07:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 998 [2023-11-06 22:07:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1014 [2023-11-06 22:07:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2023-11-06 22:07:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1036 [2023-11-06 22:07:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1048 [2023-11-06 22:07:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1060 [2023-11-06 22:07:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-06 22:07:27,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:27,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31657139] [2023-11-06 22:07:27,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31657139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:27,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:27,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:27,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822826185] [2023-11-06 22:07:27,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:27,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:27,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:27,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:27,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:27,413 INFO L87 Difference]: Start difference. First operand 2636 states and 4211 transitions. Second operand has 5 states, 5 states have (on average 251.8) internal successors, (1259), 5 states have internal predecessors, (1259), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:27,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:27,721 INFO L93 Difference]: Finished difference Result 4087 states and 6533 transitions. [2023-11-06 22:07:27,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:07:27,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 251.8) internal successors, (1259), 5 states have internal predecessors, (1259), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 1356 [2023-11-06 22:07:27,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:27,726 INFO L225 Difference]: With dead ends: 4087 [2023-11-06 22:07:27,726 INFO L226 Difference]: Without dead ends: 2636 [2023-11-06 22:07:27,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:27,729 INFO L413 NwaCegarLoop]: 1959 mSDtfsCounter, 2986 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:27,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2996 Valid, 3920 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:07:27,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-06 22:07:27,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2023-11-06 22:07:27,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2611 states have (on average 1.5947912677135196) internal successors, (4164), 2611 states have internal predecessors, (4164), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:07:27,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4210 transitions. [2023-11-06 22:07:27,798 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4210 transitions. Word has length 1356 [2023-11-06 22:07:27,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:27,799 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4210 transitions. [2023-11-06 22:07:27,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 251.8) internal successors, (1259), 5 states have internal predecessors, (1259), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:27,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4210 transitions. [2023-11-06 22:07:27,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1358 [2023-11-06 22:07:27,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:27,821 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:07:27,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-11-06 22:07:27,822 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:27,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:27,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1325774058, now seen corresponding path program 1 times [2023-11-06 22:07:27,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:27,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250036381] [2023-11-06 22:07:27,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:27,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:07:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:07:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:07:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:07:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:07:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:07:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:07:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:07:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:07:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:07:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 933 [2023-11-06 22:07:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 947 [2023-11-06 22:07:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 961 [2023-11-06 22:07:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 980 [2023-11-06 22:07:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 999 [2023-11-06 22:07:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1015 [2023-11-06 22:07:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1025 [2023-11-06 22:07:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1037 [2023-11-06 22:07:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1049 [2023-11-06 22:07:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1061 [2023-11-06 22:07:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:30,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-06 22:07:30,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:30,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250036381] [2023-11-06 22:07:30,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250036381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:30,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:30,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:30,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745564051] [2023-11-06 22:07:30,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:30,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:30,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:30,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:30,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:30,672 INFO L87 Difference]: Start difference. First operand 2636 states and 4210 transitions. Second operand has 5 states, 5 states have (on average 252.0) internal successors, (1260), 5 states have internal predecessors, (1260), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:30,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:30,998 INFO L93 Difference]: Finished difference Result 4087 states and 6531 transitions. [2023-11-06 22:07:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:07:30,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 252.0) internal successors, (1260), 5 states have internal predecessors, (1260), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 1357 [2023-11-06 22:07:31,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:31,003 INFO L225 Difference]: With dead ends: 4087 [2023-11-06 22:07:31,003 INFO L226 Difference]: Without dead ends: 2636 [2023-11-06 22:07:31,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:31,006 INFO L413 NwaCegarLoop]: 1959 mSDtfsCounter, 2970 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2980 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:31,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2980 Valid, 3920 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:07:31,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-06 22:07:31,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2023-11-06 22:07:31,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2611 states have (on average 1.594408272692455) internal successors, (4163), 2611 states have internal predecessors, (4163), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:07:31,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4209 transitions. [2023-11-06 22:07:31,078 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4209 transitions. Word has length 1357 [2023-11-06 22:07:31,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:31,079 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4209 transitions. [2023-11-06 22:07:31,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 252.0) internal successors, (1260), 5 states have internal predecessors, (1260), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:31,080 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4209 transitions. [2023-11-06 22:07:31,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1359 [2023-11-06 22:07:31,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:31,100 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:07:31,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-11-06 22:07:31,101 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:31,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:31,102 INFO L85 PathProgramCache]: Analyzing trace with hash 432870072, now seen corresponding path program 1 times [2023-11-06 22:07:31,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:31,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615690477] [2023-11-06 22:07:31,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:31,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:07:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:07:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:07:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:07:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:07:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:07:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:07:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:07:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:07:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:07:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 934 [2023-11-06 22:07:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 948 [2023-11-06 22:07:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 962 [2023-11-06 22:07:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 981 [2023-11-06 22:07:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1000 [2023-11-06 22:07:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1016 [2023-11-06 22:07:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1026 [2023-11-06 22:07:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1038 [2023-11-06 22:07:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1050 [2023-11-06 22:07:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1062 [2023-11-06 22:07:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:33,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-06 22:07:33,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:33,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615690477] [2023-11-06 22:07:33,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615690477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:33,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:33,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:33,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886021695] [2023-11-06 22:07:33,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:33,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:33,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:33,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:33,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:33,987 INFO L87 Difference]: Start difference. First operand 2636 states and 4209 transitions. Second operand has 5 states, 5 states have (on average 252.2) internal successors, (1261), 5 states have internal predecessors, (1261), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:34,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:34,277 INFO L93 Difference]: Finished difference Result 4087 states and 6529 transitions. [2023-11-06 22:07:34,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:07:34,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 252.2) internal successors, (1261), 5 states have internal predecessors, (1261), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 1358 [2023-11-06 22:07:34,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:34,280 INFO L225 Difference]: With dead ends: 4087 [2023-11-06 22:07:34,280 INFO L226 Difference]: Without dead ends: 2636 [2023-11-06 22:07:34,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:34,283 INFO L413 NwaCegarLoop]: 1959 mSDtfsCounter, 2954 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2964 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:34,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2964 Valid, 3920 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:07:34,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-06 22:07:34,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2023-11-06 22:07:34,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2611 states have (on average 1.5940252776713904) internal successors, (4162), 2611 states have internal predecessors, (4162), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:07:34,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4208 transitions. [2023-11-06 22:07:34,341 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4208 transitions. Word has length 1358 [2023-11-06 22:07:34,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:34,342 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4208 transitions. [2023-11-06 22:07:34,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 252.2) internal successors, (1261), 5 states have internal predecessors, (1261), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:34,342 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4208 transitions. [2023-11-06 22:07:34,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1360 [2023-11-06 22:07:34,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:34,359 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:07:34,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-11-06 22:07:34,359 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:34,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:34,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1335331492, now seen corresponding path program 1 times [2023-11-06 22:07:34,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:34,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747768390] [2023-11-06 22:07:34,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:34,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:07:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:07:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:07:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:07:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:07:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:07:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:07:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:07:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:07:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:07:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 935 [2023-11-06 22:07:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 949 [2023-11-06 22:07:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 963 [2023-11-06 22:07:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 982 [2023-11-06 22:07:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2023-11-06 22:07:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1017 [2023-11-06 22:07:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1027 [2023-11-06 22:07:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1039 [2023-11-06 22:07:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1051 [2023-11-06 22:07:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1063 [2023-11-06 22:07:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:37,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-06 22:07:37,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:37,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747768390] [2023-11-06 22:07:37,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747768390] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:37,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:37,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:37,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63374675] [2023-11-06 22:07:37,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:37,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:37,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:37,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:37,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:37,637 INFO L87 Difference]: Start difference. First operand 2636 states and 4208 transitions. Second operand has 5 states, 5 states have (on average 252.4) internal successors, (1262), 5 states have internal predecessors, (1262), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:37,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:37,917 INFO L93 Difference]: Finished difference Result 4087 states and 6527 transitions. [2023-11-06 22:07:37,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:07:37,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 252.4) internal successors, (1262), 5 states have internal predecessors, (1262), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 1359 [2023-11-06 22:07:37,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:37,922 INFO L225 Difference]: With dead ends: 4087 [2023-11-06 22:07:37,922 INFO L226 Difference]: Without dead ends: 2636 [2023-11-06 22:07:37,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:37,924 INFO L413 NwaCegarLoop]: 1959 mSDtfsCounter, 2938 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2948 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:37,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2948 Valid, 3920 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:07:37,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-06 22:07:37,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2023-11-06 22:07:37,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2611 states have (on average 1.5936422826503256) internal successors, (4161), 2611 states have internal predecessors, (4161), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:07:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4207 transitions. [2023-11-06 22:07:37,995 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4207 transitions. Word has length 1359 [2023-11-06 22:07:37,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:37,996 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4207 transitions. [2023-11-06 22:07:37,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 252.4) internal successors, (1262), 5 states have internal predecessors, (1262), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:37,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4207 transitions. [2023-11-06 22:07:38,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1361 [2023-11-06 22:07:38,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:38,017 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:07:38,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-11-06 22:07:38,018 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:38,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:38,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1113578346, now seen corresponding path program 1 times [2023-11-06 22:07:38,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:38,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892339546] [2023-11-06 22:07:38,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:38,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:07:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:07:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:07:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:07:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:07:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:07:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:07:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:07:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:07:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:07:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2023-11-06 22:07:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 950 [2023-11-06 22:07:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2023-11-06 22:07:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 983 [2023-11-06 22:07:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1002 [2023-11-06 22:07:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1018 [2023-11-06 22:07:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1028 [2023-11-06 22:07:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1040 [2023-11-06 22:07:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1052 [2023-11-06 22:07:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1064 [2023-11-06 22:07:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:41,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-06 22:07:41,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:41,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892339546] [2023-11-06 22:07:41,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892339546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:41,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:41,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:41,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207314587] [2023-11-06 22:07:41,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:41,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:41,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:41,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:41,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:41,150 INFO L87 Difference]: Start difference. First operand 2636 states and 4207 transitions. Second operand has 5 states, 5 states have (on average 252.6) internal successors, (1263), 5 states have internal predecessors, (1263), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:41,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:41,383 INFO L93 Difference]: Finished difference Result 4087 states and 6525 transitions. [2023-11-06 22:07:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:07:41,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 252.6) internal successors, (1263), 5 states have internal predecessors, (1263), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 1360 [2023-11-06 22:07:41,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:41,388 INFO L225 Difference]: With dead ends: 4087 [2023-11-06 22:07:41,388 INFO L226 Difference]: Without dead ends: 2636 [2023-11-06 22:07:41,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:41,390 INFO L413 NwaCegarLoop]: 1988 mSDtfsCounter, 2916 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2926 SdHoareTripleChecker+Valid, 3978 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:41,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2926 Valid, 3978 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:07:41,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-06 22:07:41,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2023-11-06 22:07:41,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2611 states have (on average 1.5932592876292608) internal successors, (4160), 2611 states have internal predecessors, (4160), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:07:41,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4206 transitions. [2023-11-06 22:07:41,460 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4206 transitions. Word has length 1360 [2023-11-06 22:07:41,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:41,460 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4206 transitions. [2023-11-06 22:07:41,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 252.6) internal successors, (1263), 5 states have internal predecessors, (1263), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:41,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4206 transitions. [2023-11-06 22:07:41,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1362 [2023-11-06 22:07:41,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:41,481 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:07:41,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-11-06 22:07:41,481 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:41,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:41,482 INFO L85 PathProgramCache]: Analyzing trace with hash -290768690, now seen corresponding path program 1 times [2023-11-06 22:07:41,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:41,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680989109] [2023-11-06 22:07:41,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:41,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:07:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-06 22:07:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-06 22:07:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:07:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-06 22:07:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 22:07:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-06 22:07:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 22:07:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-06 22:07:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-11-06 22:07:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 937 [2023-11-06 22:07:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-11-06 22:07:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 965 [2023-11-06 22:07:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2023-11-06 22:07:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2023-11-06 22:07:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1019 [2023-11-06 22:07:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2023-11-06 22:07:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1041 [2023-11-06 22:07:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1053 [2023-11-06 22:07:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2023-11-06 22:07:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-06 22:07:44,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:44,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680989109] [2023-11-06 22:07:44,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680989109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:44,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:44,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:44,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132808575] [2023-11-06 22:07:44,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:44,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:44,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:44,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:44,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:44,824 INFO L87 Difference]: Start difference. First operand 2636 states and 4206 transitions. Second operand has 5 states, 5 states have (on average 252.8) internal successors, (1264), 5 states have internal predecessors, (1264), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:45,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:45,041 INFO L93 Difference]: Finished difference Result 4087 states and 6523 transitions. [2023-11-06 22:07:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:07:45,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 252.8) internal successors, (1264), 5 states have internal predecessors, (1264), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 1361 [2023-11-06 22:07:45,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:45,045 INFO L225 Difference]: With dead ends: 4087 [2023-11-06 22:07:45,045 INFO L226 Difference]: Without dead ends: 2636 [2023-11-06 22:07:45,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:45,047 INFO L413 NwaCegarLoop]: 1987 mSDtfsCounter, 2900 mSDsluCounter, 1989 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2910 SdHoareTripleChecker+Valid, 3976 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:45,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2910 Valid, 3976 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:07:45,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-06 22:07:45,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2023-11-06 22:07:45,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2611 states have (on average 1.592876292608196) internal successors, (4159), 2611 states have internal predecessors, (4159), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:07:45,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4205 transitions. [2023-11-06 22:07:45,094 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4205 transitions. Word has length 1361 [2023-11-06 22:07:45,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:45,095 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4205 transitions. [2023-11-06 22:07:45,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 252.8) internal successors, (1264), 5 states have internal predecessors, (1264), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 22:07:45,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4205 transitions. [2023-11-06 22:07:45,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1363 [2023-11-06 22:07:45,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:45,112 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:07:45,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-11-06 22:07:45,112 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:45,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:45,113 INFO L85 PathProgramCache]: Analyzing trace with hash 2104047388, now seen corresponding path program 1 times [2023-11-06 22:07:45,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:45,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371002368] [2023-11-06 22:07:45,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:45,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat