./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d869d36578fc433cb3bcbc293e270e4f10048025e6637a1ca792146288a88a6e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:53:09,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:53:09,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 05:53:09,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:53:09,218 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:53:09,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:53:09,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:53:09,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:53:09,245 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:53:09,246 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:53:09,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:53:09,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:53:09,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:53:09,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:53:09,249 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:53:09,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:53:09,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:53:09,250 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:53:09,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:53:09,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:53:09,252 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:53:09,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:53:09,252 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:53:09,253 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:53:09,253 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:53:09,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:53:09,254 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:53:09,254 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:53:09,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:53:09,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:53:09,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:53:09,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:53:09,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:53:09,256 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:53:09,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:53:09,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:53:09,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:53:09,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:53:09,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:53:09,258 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:53:09,258 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:53:09,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:53:09,258 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_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d869d36578fc433cb3bcbc293e270e4f10048025e6637a1ca792146288a88a6e [2023-11-29 05:53:09,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:53:09,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:53:09,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:53:09,495 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:53:09,495 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:53:09,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-29 05:53:12,187 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:53:12,482 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:53:12,483 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7854267d-5621-49c7-be38-a5476980e566/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-29 05:53:12,499 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya/data/1d6c9691f/93cb7ea92e0a4fc48516278a8a6ad697/FLAG95444c18a [2023-11-29 05:53:12,513 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya/data/1d6c9691f/93cb7ea92e0a4fc48516278a8a6ad697 [2023-11-29 05:53:12,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:53:12,516 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:53:12,518 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:53:12,518 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:53:12,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:53:12,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:53:12" (1/1) ... [2023-11-29 05:53:12,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b5fec06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:12, skipping insertion in model container [2023-11-29 05:53:12,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:53:12" (1/1) ... [2023-11-29 05:53:12,617 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:53:13,006 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_7854267d-5621-49c7-be38-a5476980e566/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24323,24336] [2023-11-29 05:53:13,061 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_7854267d-5621-49c7-be38-a5476980e566/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28161,28174] [2023-11-29 05:53:13,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:53:13,212 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:53:13,354 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_7854267d-5621-49c7-be38-a5476980e566/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24323,24336] [2023-11-29 05:53:13,393 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_7854267d-5621-49c7-be38-a5476980e566/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28161,28174] [2023-11-29 05:53:13,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:53:13,519 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:53:13,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:13 WrapperNode [2023-11-29 05:53:13,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:53:13,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:53:13,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:53:13,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:53:13,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:13" (1/1) ... [2023-11-29 05:53:13,555 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:13" (1/1) ... [2023-11-29 05:53:13,626 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2467 [2023-11-29 05:53:13,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:53:13,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:53:13,627 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:53:13,627 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:53:13,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:13" (1/1) ... [2023-11-29 05:53:13,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:13" (1/1) ... [2023-11-29 05:53:13,648 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:13" (1/1) ... [2023-11-29 05:53:13,683 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 05:53:13,683 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:13" (1/1) ... [2023-11-29 05:53:13,683 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:13" (1/1) ... [2023-11-29 05:53:13,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:13" (1/1) ... [2023-11-29 05:53:13,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:13" (1/1) ... [2023-11-29 05:53:13,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:13" (1/1) ... [2023-11-29 05:53:13,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:13" (1/1) ... [2023-11-29 05:53:13,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:53:13,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:53:13,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:53:13,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:53:13,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:13" (1/1) ... [2023-11-29 05:53:13,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:53:13,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:13,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:13,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7854267d-5621-49c7-be38-a5476980e566/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:53:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:53:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:53:13,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:53:13,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:53:14,033 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:53:14,034 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:53:15,523 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:53:15,582 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:53:15,583 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 05:53:15,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:53:15 BoogieIcfgContainer [2023-11-29 05:53:15,584 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:53:15,586 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:53:15,587 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:53:15,590 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:53:15,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:53:12" (1/3) ... [2023-11-29 05:53:15,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d492adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:53:15, skipping insertion in model container [2023-11-29 05:53:15,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:13" (2/3) ... [2023-11-29 05:53:15,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d492adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:53:15, skipping insertion in model container [2023-11-29 05:53:15,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:53:15" (3/3) ... [2023-11-29 05:53:15,592 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-29 05:53:15,610 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:53:15,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 05:53:15,672 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:53:15,677 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43631a15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:53:15,678 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 05:53:15,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 632 states, 622 states have (on average 1.8054662379421222) internal successors, (1123), 631 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:15,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 05:53:15,705 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:15,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:15,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:15,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:15,710 INFO L85 PathProgramCache]: Analyzing trace with hash -936504081, now seen corresponding path program 1 times [2023-11-29 05:53:15,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:15,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471849182] [2023-11-29 05:53:15,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:15,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:16,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:16,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471849182] [2023-11-29 05:53:16,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471849182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:16,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:16,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:16,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57602511] [2023-11-29 05:53:16,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:16,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:53:16,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:16,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:53:16,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:53:16,835 INFO L87 Difference]: Start difference. First operand has 632 states, 622 states have (on average 1.8054662379421222) internal successors, (1123), 631 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:17,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:17,060 INFO L93 Difference]: Finished difference Result 1862 states and 3310 transitions. [2023-11-29 05:53:17,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:53:17,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2023-11-29 05:53:17,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:17,083 INFO L225 Difference]: With dead ends: 1862 [2023-11-29 05:53:17,084 INFO L226 Difference]: Without dead ends: 1220 [2023-11-29 05:53:17,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:53:17,093 INFO L413 NwaCegarLoop]: 1816 mSDtfsCounter, 2453 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2453 SdHoareTripleChecker+Valid, 2877 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:17,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2453 Valid, 2877 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:53:17,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2023-11-29 05:53:17,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1185. [2023-11-29 05:53:17,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1183 states have (on average 1.544378698224852) internal successors, (1827), 1184 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:17,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1827 transitions. [2023-11-29 05:53:17,180 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1827 transitions. Word has length 234 [2023-11-29 05:53:17,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:17,181 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 1827 transitions. [2023-11-29 05:53:17,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:17,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1827 transitions. [2023-11-29 05:53:17,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-11-29 05:53:17,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:17,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:17,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:53:17,191 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:17,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:17,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1983457189, now seen corresponding path program 1 times [2023-11-29 05:53:17,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:17,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062357782] [2023-11-29 05:53:17,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:17,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:17,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:17,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:17,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062357782] [2023-11-29 05:53:17,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062357782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:17,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:17,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:17,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354833868] [2023-11-29 05:53:17,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:17,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:53:17,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:17,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:17,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:17,446 INFO L87 Difference]: Start difference. First operand 1185 states and 1827 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:17,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:17,640 INFO L93 Difference]: Finished difference Result 3391 states and 5193 transitions. [2023-11-29 05:53:17,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:17,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2023-11-29 05:53:17,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:17,655 INFO L225 Difference]: With dead ends: 3391 [2023-11-29 05:53:17,655 INFO L226 Difference]: Without dead ends: 2330 [2023-11-29 05:53:17,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:17,659 INFO L413 NwaCegarLoop]: 1810 mSDtfsCounter, 830 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:17,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 2726 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:53:17,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2023-11-29 05:53:17,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 2297. [2023-11-29 05:53:17,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2297 states, 2295 states have (on average 1.5359477124183007) internal successors, (3525), 2296 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:17,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2297 states to 2297 states and 3525 transitions. [2023-11-29 05:53:17,732 INFO L78 Accepts]: Start accepts. Automaton has 2297 states and 3525 transitions. Word has length 236 [2023-11-29 05:53:17,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:17,733 INFO L495 AbstractCegarLoop]: Abstraction has 2297 states and 3525 transitions. [2023-11-29 05:53:17,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:17,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2297 states and 3525 transitions. [2023-11-29 05:53:17,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-11-29 05:53:17,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:17,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:17,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:53:17,742 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:17,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:17,743 INFO L85 PathProgramCache]: Analyzing trace with hash 962947840, now seen corresponding path program 1 times [2023-11-29 05:53:17,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:17,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108090274] [2023-11-29 05:53:17,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:17,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:17,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:17,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:17,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108090274] [2023-11-29 05:53:17,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108090274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:17,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:17,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:17,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297105630] [2023-11-29 05:53:17,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:17,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:53:17,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:17,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:17,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:17,886 INFO L87 Difference]: Start difference. First operand 2297 states and 3525 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:17,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:17,975 INFO L93 Difference]: Finished difference Result 6826 states and 10461 transitions. [2023-11-29 05:53:17,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:17,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2023-11-29 05:53:17,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:17,999 INFO L225 Difference]: With dead ends: 6826 [2023-11-29 05:53:17,999 INFO L226 Difference]: Without dead ends: 4566 [2023-11-29 05:53:18,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:18,004 INFO L413 NwaCegarLoop]: 1904 mSDtfsCounter, 950 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 2854 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:18,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 2854 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:53:18,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4566 states. [2023-11-29 05:53:18,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4566 to 2316. [2023-11-29 05:53:18,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2316 states, 2314 states have (on average 1.535436473638721) internal successors, (3553), 2315 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:18,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2316 states to 2316 states and 3553 transitions. [2023-11-29 05:53:18,109 INFO L78 Accepts]: Start accepts. Automaton has 2316 states and 3553 transitions. Word has length 236 [2023-11-29 05:53:18,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:18,110 INFO L495 AbstractCegarLoop]: Abstraction has 2316 states and 3553 transitions. [2023-11-29 05:53:18,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:18,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2316 states and 3553 transitions. [2023-11-29 05:53:18,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-11-29 05:53:18,117 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:18,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:18,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:53:18,118 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:18,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:18,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2022152389, now seen corresponding path program 1 times [2023-11-29 05:53:18,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:18,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69877828] [2023-11-29 05:53:18,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:18,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:18,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:18,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:18,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69877828] [2023-11-29 05:53:18,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69877828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:18,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:18,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:18,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118095527] [2023-11-29 05:53:18,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:18,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:53:18,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:18,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:18,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:18,247 INFO L87 Difference]: Start difference. First operand 2316 states and 3553 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:18,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:18,329 INFO L93 Difference]: Finished difference Result 6845 states and 10482 transitions. [2023-11-29 05:53:18,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:18,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2023-11-29 05:53:18,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:18,353 INFO L225 Difference]: With dead ends: 6845 [2023-11-29 05:53:18,353 INFO L226 Difference]: Without dead ends: 4584 [2023-11-29 05:53:18,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:18,358 INFO L413 NwaCegarLoop]: 1904 mSDtfsCounter, 945 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 2854 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:18,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 2854 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:53:18,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2023-11-29 05:53:18,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 2334. [2023-11-29 05:53:18,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2334 states, 2332 states have (on average 1.532590051457976) internal successors, (3574), 2333 states have internal predecessors, (3574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:18,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2334 states to 2334 states and 3574 transitions. [2023-11-29 05:53:18,446 INFO L78 Accepts]: Start accepts. Automaton has 2334 states and 3574 transitions. Word has length 237 [2023-11-29 05:53:18,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:18,446 INFO L495 AbstractCegarLoop]: Abstraction has 2334 states and 3574 transitions. [2023-11-29 05:53:18,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:18,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2334 states and 3574 transitions. [2023-11-29 05:53:18,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-11-29 05:53:18,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:18,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:18,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:53:18,454 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:18,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:18,455 INFO L85 PathProgramCache]: Analyzing trace with hash 878327850, now seen corresponding path program 1 times [2023-11-29 05:53:18,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:18,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221393681] [2023-11-29 05:53:18,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:18,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:18,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:18,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:18,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221393681] [2023-11-29 05:53:18,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221393681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:18,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:18,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:18,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279802636] [2023-11-29 05:53:18,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:18,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:53:18,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:18,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:18,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:18,671 INFO L87 Difference]: Start difference. First operand 2334 states and 3574 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:18,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:18,789 INFO L93 Difference]: Finished difference Result 6588 states and 10019 transitions. [2023-11-29 05:53:18,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:18,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2023-11-29 05:53:18,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:18,813 INFO L225 Difference]: With dead ends: 6588 [2023-11-29 05:53:18,813 INFO L226 Difference]: Without dead ends: 4494 [2023-11-29 05:53:18,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:18,817 INFO L413 NwaCegarLoop]: 1872 mSDtfsCounter, 823 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:18,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 2788 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:53:18,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4494 states. [2023-11-29 05:53:18,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4494 to 4463. [2023-11-29 05:53:18,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4463 states, 4461 states have (on average 1.5202869311813494) internal successors, (6782), 4462 states have internal predecessors, (6782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:18,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4463 states to 4463 states and 6782 transitions. [2023-11-29 05:53:18,938 INFO L78 Accepts]: Start accepts. Automaton has 4463 states and 6782 transitions. Word has length 238 [2023-11-29 05:53:18,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:18,938 INFO L495 AbstractCegarLoop]: Abstraction has 4463 states and 6782 transitions. [2023-11-29 05:53:18,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:18,939 INFO L276 IsEmpty]: Start isEmpty. Operand 4463 states and 6782 transitions. [2023-11-29 05:53:18,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-11-29 05:53:18,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:18,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:18,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:53:18,950 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:18,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:18,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1386082605, now seen corresponding path program 1 times [2023-11-29 05:53:18,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:18,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291100115] [2023-11-29 05:53:18,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:18,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:19,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:19,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:19,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291100115] [2023-11-29 05:53:19,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291100115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:19,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:19,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:53:19,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156187423] [2023-11-29 05:53:19,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:19,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:53:19,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:19,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:53:19,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:53:19,545 INFO L87 Difference]: Start difference. First operand 4463 states and 6782 transitions. Second operand has 5 states, 5 states have (on average 47.6) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:19,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:19,727 INFO L93 Difference]: Finished difference Result 12948 states and 19619 transitions. [2023-11-29 05:53:19,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:53:19,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.6) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2023-11-29 05:53:19,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:19,772 INFO L225 Difference]: With dead ends: 12948 [2023-11-29 05:53:19,772 INFO L226 Difference]: Without dead ends: 8539 [2023-11-29 05:53:19,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:53:19,779 INFO L413 NwaCegarLoop]: 1548 mSDtfsCounter, 2178 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 3360 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:19,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 3360 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:53:19,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8539 states. [2023-11-29 05:53:19,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8539 to 8513. [2023-11-29 05:53:20,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8513 states, 8511 states have (on average 1.504171072729409) internal successors, (12802), 8512 states have internal predecessors, (12802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:20,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8513 states to 8513 states and 12802 transitions. [2023-11-29 05:53:20,030 INFO L78 Accepts]: Start accepts. Automaton has 8513 states and 12802 transitions. Word has length 238 [2023-11-29 05:53:20,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:20,030 INFO L495 AbstractCegarLoop]: Abstraction has 8513 states and 12802 transitions. [2023-11-29 05:53:20,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.6) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:20,031 INFO L276 IsEmpty]: Start isEmpty. Operand 8513 states and 12802 transitions. [2023-11-29 05:53:20,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-11-29 05:53:20,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:20,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:20,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 05:53:20,048 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:20,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:20,049 INFO L85 PathProgramCache]: Analyzing trace with hash -575909170, now seen corresponding path program 1 times [2023-11-29 05:53:20,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:20,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654392638] [2023-11-29 05:53:20,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:20,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:20,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:20,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:20,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654392638] [2023-11-29 05:53:20,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654392638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:20,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:20,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:53:20,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524362254] [2023-11-29 05:53:20,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:20,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:53:20,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:20,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:53:20,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:53:20,562 INFO L87 Difference]: Start difference. First operand 8513 states and 12802 transitions. Second operand has 5 states, 5 states have (on average 48.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:20,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:20,740 INFO L93 Difference]: Finished difference Result 24925 states and 37411 transitions. [2023-11-29 05:53:20,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:53:20,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2023-11-29 05:53:20,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:20,772 INFO L225 Difference]: With dead ends: 24925 [2023-11-29 05:53:20,772 INFO L226 Difference]: Without dead ends: 16528 [2023-11-29 05:53:20,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:53:20,785 INFO L413 NwaCegarLoop]: 1543 mSDtfsCounter, 1839 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 3355 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:20,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1839 Valid, 3355 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:53:20,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16528 states. [2023-11-29 05:53:21,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16528 to 16511. [2023-11-29 05:53:21,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16511 states, 16509 states have (on average 1.4911866254770125) internal successors, (24618), 16510 states have internal predecessors, (24618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:21,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16511 states to 16511 states and 24618 transitions. [2023-11-29 05:53:21,102 INFO L78 Accepts]: Start accepts. Automaton has 16511 states and 24618 transitions. Word has length 240 [2023-11-29 05:53:21,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:21,103 INFO L495 AbstractCegarLoop]: Abstraction has 16511 states and 24618 transitions. [2023-11-29 05:53:21,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:21,103 INFO L276 IsEmpty]: Start isEmpty. Operand 16511 states and 24618 transitions. [2023-11-29 05:53:21,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-11-29 05:53:21,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:21,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:21,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 05:53:21,136 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:21,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:21,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1649268917, now seen corresponding path program 1 times [2023-11-29 05:53:21,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:21,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553134550] [2023-11-29 05:53:21,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:21,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:21,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:21,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:21,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553134550] [2023-11-29 05:53:21,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553134550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:21,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:21,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:21,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496204073] [2023-11-29 05:53:21,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:21,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:53:21,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:21,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:53:21,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:53:21,706 INFO L87 Difference]: Start difference. First operand 16511 states and 24618 transitions. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:21,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:21,924 INFO L93 Difference]: Finished difference Result 48557 states and 72277 transitions. [2023-11-29 05:53:21,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:53:21,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2023-11-29 05:53:21,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:21,971 INFO L225 Difference]: With dead ends: 48557 [2023-11-29 05:53:21,971 INFO L226 Difference]: Without dead ends: 32275 [2023-11-29 05:53:21,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:53:21,993 INFO L413 NwaCegarLoop]: 1538 mSDtfsCounter, 2040 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:21,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 2448 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:53:22,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32275 states. [2023-11-29 05:53:22,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32275 to 32075. [2023-11-29 05:53:22,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32075 states, 32073 states have (on average 1.4788139556636424) internal successors, (47430), 32074 states have internal predecessors, (47430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:22,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32075 states to 32075 states and 47430 transitions. [2023-11-29 05:53:22,427 INFO L78 Accepts]: Start accepts. Automaton has 32075 states and 47430 transitions. Word has length 240 [2023-11-29 05:53:22,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:22,428 INFO L495 AbstractCegarLoop]: Abstraction has 32075 states and 47430 transitions. [2023-11-29 05:53:22,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:22,428 INFO L276 IsEmpty]: Start isEmpty. Operand 32075 states and 47430 transitions. [2023-11-29 05:53:22,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-11-29 05:53:22,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:22,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:22,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 05:53:22,555 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:22,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:22,563 INFO L85 PathProgramCache]: Analyzing trace with hash 684503914, now seen corresponding path program 1 times [2023-11-29 05:53:22,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:22,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497999908] [2023-11-29 05:53:22,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:22,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:22,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:22,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:22,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497999908] [2023-11-29 05:53:22,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497999908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:22,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:22,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:22,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25819078] [2023-11-29 05:53:22,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:22,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:53:22,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:22,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:22,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:22,681 INFO L87 Difference]: Start difference. First operand 32075 states and 47430 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:22,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:22,934 INFO L93 Difference]: Finished difference Result 93675 states and 138076 transitions. [2023-11-29 05:53:22,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:22,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 242 [2023-11-29 05:53:22,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:23,012 INFO L225 Difference]: With dead ends: 93675 [2023-11-29 05:53:23,013 INFO L226 Difference]: Without dead ends: 62979 [2023-11-29 05:53:23,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:23,038 INFO L413 NwaCegarLoop]: 1808 mSDtfsCounter, 806 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:23,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 2728 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:53:23,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62979 states. [2023-11-29 05:53:23,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62979 to 62779. [2023-11-29 05:53:23,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62779 states, 62777 states have (on average 1.4681173041081925) internal successors, (92164), 62778 states have internal predecessors, (92164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:24,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62779 states to 62779 states and 92164 transitions. [2023-11-29 05:53:24,089 INFO L78 Accepts]: Start accepts. Automaton has 62779 states and 92164 transitions. Word has length 242 [2023-11-29 05:53:24,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:24,090 INFO L495 AbstractCegarLoop]: Abstraction has 62779 states and 92164 transitions. [2023-11-29 05:53:24,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:24,090 INFO L276 IsEmpty]: Start isEmpty. Operand 62779 states and 92164 transitions. [2023-11-29 05:53:24,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-11-29 05:53:24,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:24,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:24,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 05:53:24,138 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:24,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:24,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1171871493, now seen corresponding path program 1 times [2023-11-29 05:53:24,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:24,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190418867] [2023-11-29 05:53:24,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:24,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:24,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:24,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:24,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190418867] [2023-11-29 05:53:24,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190418867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:24,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:24,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:24,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265703271] [2023-11-29 05:53:24,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:24,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:53:24,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:24,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:24,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:24,353 INFO L87 Difference]: Start difference. First operand 62779 states and 92164 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:24,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:24,924 INFO L93 Difference]: Finished difference Result 187215 states and 274670 transitions. [2023-11-29 05:53:24,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:24,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 242 [2023-11-29 05:53:24,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:25,061 INFO L225 Difference]: With dead ends: 187215 [2023-11-29 05:53:25,062 INFO L226 Difference]: Without dead ends: 125097 [2023-11-29 05:53:25,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:25,184 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 917 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:25,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 2821 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:53:25,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125097 states. [2023-11-29 05:53:25,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125097 to 62989. [2023-11-29 05:53:26,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62989 states, 62987 states have (on average 1.4681759728197883) internal successors, (92476), 62988 states have internal predecessors, (92476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:26,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62989 states to 62989 states and 92476 transitions. [2023-11-29 05:53:26,092 INFO L78 Accepts]: Start accepts. Automaton has 62989 states and 92476 transitions. Word has length 242 [2023-11-29 05:53:26,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:26,092 INFO L495 AbstractCegarLoop]: Abstraction has 62989 states and 92476 transitions. [2023-11-29 05:53:26,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:26,092 INFO L276 IsEmpty]: Start isEmpty. Operand 62989 states and 92476 transitions. [2023-11-29 05:53:26,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-11-29 05:53:26,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:26,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:26,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 05:53:26,125 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:26,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:26,125 INFO L85 PathProgramCache]: Analyzing trace with hash 862307932, now seen corresponding path program 1 times [2023-11-29 05:53:26,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:26,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81394398] [2023-11-29 05:53:26,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:26,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:26,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:26,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:26,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81394398] [2023-11-29 05:53:26,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81394398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:26,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:26,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:26,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245374795] [2023-11-29 05:53:26,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:26,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:53:26,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:26,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:26,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:26,207 INFO L87 Difference]: Start difference. First operand 62989 states and 92476 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:26,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:26,994 INFO L93 Difference]: Finished difference Result 187403 states and 274876 transitions. [2023-11-29 05:53:26,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:26,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2023-11-29 05:53:26,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:27,152 INFO L225 Difference]: With dead ends: 187403 [2023-11-29 05:53:27,152 INFO L226 Difference]: Without dead ends: 125275 [2023-11-29 05:53:27,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:27,196 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 912 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:27,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 2821 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:53:27,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125275 states. [2023-11-29 05:53:28,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125275 to 63219. [2023-11-29 05:53:28,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63219 states, 63217 states have (on average 1.467010456048215) internal successors, (92740), 63218 states have internal predecessors, (92740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:28,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63219 states to 63219 states and 92740 transitions. [2023-11-29 05:53:28,255 INFO L78 Accepts]: Start accepts. Automaton has 63219 states and 92740 transitions. Word has length 243 [2023-11-29 05:53:28,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:28,255 INFO L495 AbstractCegarLoop]: Abstraction has 63219 states and 92740 transitions. [2023-11-29 05:53:28,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:28,255 INFO L276 IsEmpty]: Start isEmpty. Operand 63219 states and 92740 transitions. [2023-11-29 05:53:28,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-29 05:53:28,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:28,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:28,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 05:53:28,286 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:28,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:28,286 INFO L85 PathProgramCache]: Analyzing trace with hash 694591090, now seen corresponding path program 1 times [2023-11-29 05:53:28,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:28,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238566250] [2023-11-29 05:53:28,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:28,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:28,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:28,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:28,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238566250] [2023-11-29 05:53:28,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238566250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:28,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:28,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:53:28,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058081649] [2023-11-29 05:53:28,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:28,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:53:28,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:28,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:53:28,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:53:28,929 INFO L87 Difference]: Start difference. First operand 63219 states and 92740 transitions. Second operand has 5 states, 5 states have (on average 48.8) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:29,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:29,424 INFO L93 Difference]: Finished difference Result 184908 states and 270655 transitions. [2023-11-29 05:53:29,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:53:29,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 244 [2023-11-29 05:53:29,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:29,543 INFO L225 Difference]: With dead ends: 184908 [2023-11-29 05:53:29,543 INFO L226 Difference]: Without dead ends: 122269 [2023-11-29 05:53:29,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:53:29,588 INFO L413 NwaCegarLoop]: 1512 mSDtfsCounter, 2972 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2972 SdHoareTripleChecker+Valid, 2418 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:29,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2972 Valid, 2418 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:53:29,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122269 states. [2023-11-29 05:53:30,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122269 to 122239. [2023-11-29 05:53:30,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122239 states, 122237 states have (on average 1.4525061969780018) internal successors, (177550), 122238 states have internal predecessors, (177550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:30,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122239 states to 122239 states and 177550 transitions. [2023-11-29 05:53:30,995 INFO L78 Accepts]: Start accepts. Automaton has 122239 states and 177550 transitions. Word has length 244 [2023-11-29 05:53:30,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:30,995 INFO L495 AbstractCegarLoop]: Abstraction has 122239 states and 177550 transitions. [2023-11-29 05:53:30,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:30,995 INFO L276 IsEmpty]: Start isEmpty. Operand 122239 states and 177550 transitions. [2023-11-29 05:53:31,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-11-29 05:53:31,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:31,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:31,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 05:53:31,061 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:31,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:31,061 INFO L85 PathProgramCache]: Analyzing trace with hash -320626334, now seen corresponding path program 1 times [2023-11-29 05:53:31,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:31,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543764792] [2023-11-29 05:53:31,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:31,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:31,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:31,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:31,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543764792] [2023-11-29 05:53:31,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543764792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:31,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:31,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:31,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381177606] [2023-11-29 05:53:31,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:31,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:53:31,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:31,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:53:31,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:53:31,794 INFO L87 Difference]: Start difference. First operand 122239 states and 177550 transitions. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:32,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:32,657 INFO L93 Difference]: Finished difference Result 263952 states and 383618 transitions. [2023-11-29 05:53:32,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:53:32,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2023-11-29 05:53:32,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:32,789 INFO L225 Difference]: With dead ends: 263952 [2023-11-29 05:53:32,789 INFO L226 Difference]: Without dead ends: 143330 [2023-11-29 05:53:32,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:53:32,832 INFO L413 NwaCegarLoop]: 1458 mSDtfsCounter, 2071 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2071 SdHoareTripleChecker+Valid, 2368 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:32,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2071 Valid, 2368 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:53:32,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143330 states. [2023-11-29 05:53:34,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143330 to 122474. [2023-11-29 05:53:34,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122474 states, 122472 states have (on average 1.4512378339538834) internal successors, (177736), 122473 states have internal predecessors, (177736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:34,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122474 states to 122474 states and 177736 transitions. [2023-11-29 05:53:34,612 INFO L78 Accepts]: Start accepts. Automaton has 122474 states and 177736 transitions. Word has length 246 [2023-11-29 05:53:34,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:34,613 INFO L495 AbstractCegarLoop]: Abstraction has 122474 states and 177736 transitions. [2023-11-29 05:53:34,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:34,613 INFO L276 IsEmpty]: Start isEmpty. Operand 122474 states and 177736 transitions. [2023-11-29 05:53:34,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-11-29 05:53:34,689 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:34,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:34,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 05:53:34,690 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:34,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:34,690 INFO L85 PathProgramCache]: Analyzing trace with hash 925812101, now seen corresponding path program 1 times [2023-11-29 05:53:34,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:34,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682306891] [2023-11-29 05:53:34,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:34,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:34,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:34,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682306891] [2023-11-29 05:53:34,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682306891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:34,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:34,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:34,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235326120] [2023-11-29 05:53:34,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:34,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:53:34,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:34,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:34,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:34,772 INFO L87 Difference]: Start difference. First operand 122474 states and 177736 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:35,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:35,603 INFO L93 Difference]: Finished difference Result 361080 states and 523231 transitions. [2023-11-29 05:53:35,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:35,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 248 [2023-11-29 05:53:35,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:35,811 INFO L225 Difference]: With dead ends: 361080 [2023-11-29 05:53:35,811 INFO L226 Difference]: Without dead ends: 241083 [2023-11-29 05:53:35,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:35,847 INFO L413 NwaCegarLoop]: 1838 mSDtfsCounter, 884 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:35,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 2788 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:53:35,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241083 states. [2023-11-29 05:53:37,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241083 to 122947. [2023-11-29 05:53:37,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122947 states, 122945 states have (on average 1.4503802513318964) internal successors, (178317), 122946 states have internal predecessors, (178317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:37,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122947 states to 122947 states and 178317 transitions. [2023-11-29 05:53:37,945 INFO L78 Accepts]: Start accepts. Automaton has 122947 states and 178317 transitions. Word has length 248 [2023-11-29 05:53:37,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:37,945 INFO L495 AbstractCegarLoop]: Abstraction has 122947 states and 178317 transitions. [2023-11-29 05:53:37,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:37,945 INFO L276 IsEmpty]: Start isEmpty. Operand 122947 states and 178317 transitions. [2023-11-29 05:53:38,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-11-29 05:53:38,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:38,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:38,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 05:53:38,005 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:38,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:38,006 INFO L85 PathProgramCache]: Analyzing trace with hash -17411678, now seen corresponding path program 1 times [2023-11-29 05:53:38,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:38,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989336507] [2023-11-29 05:53:38,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:38,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:38,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:38,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:38,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989336507] [2023-11-29 05:53:38,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989336507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:38,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:38,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:38,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280636329] [2023-11-29 05:53:38,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:38,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:53:38,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:38,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:38,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:38,084 INFO L87 Difference]: Start difference. First operand 122947 states and 178317 transitions. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:38,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:38,947 INFO L93 Difference]: Finished difference Result 363499 states and 526790 transitions. [2023-11-29 05:53:38,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:38,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 249 [2023-11-29 05:53:38,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:39,144 INFO L225 Difference]: With dead ends: 363499 [2023-11-29 05:53:39,144 INFO L226 Difference]: Without dead ends: 243140 [2023-11-29 05:53:39,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:39,188 INFO L413 NwaCegarLoop]: 1838 mSDtfsCounter, 879 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:39,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 2788 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:53:39,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243140 states. [2023-11-29 05:53:40,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243140 to 123632. [2023-11-29 05:53:41,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123632 states, 123630 states have (on average 1.448847367143897) internal successors, (179121), 123631 states have internal predecessors, (179121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:41,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123632 states to 123632 states and 179121 transitions. [2023-11-29 05:53:41,207 INFO L78 Accepts]: Start accepts. Automaton has 123632 states and 179121 transitions. Word has length 249 [2023-11-29 05:53:41,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:41,207 INFO L495 AbstractCegarLoop]: Abstraction has 123632 states and 179121 transitions. [2023-11-29 05:53:41,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:41,208 INFO L276 IsEmpty]: Start isEmpty. Operand 123632 states and 179121 transitions. [2023-11-29 05:53:41,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-29 05:53:41,318 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:41,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:41,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 05:53:41,318 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:41,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:41,319 INFO L85 PathProgramCache]: Analyzing trace with hash -194482705, now seen corresponding path program 1 times [2023-11-29 05:53:41,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:41,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238175960] [2023-11-29 05:53:41,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:41,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:41,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:41,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:41,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238175960] [2023-11-29 05:53:41,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238175960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:41,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:41,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:41,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991852728] [2023-11-29 05:53:41,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:41,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:53:41,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:41,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:41,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:41,516 INFO L87 Difference]: Start difference. First operand 123632 states and 179121 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:42,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:42,646 INFO L93 Difference]: Finished difference Result 363985 states and 526798 transitions. [2023-11-29 05:53:42,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:42,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2023-11-29 05:53:42,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:42,852 INFO L225 Difference]: With dead ends: 363985 [2023-11-29 05:53:42,852 INFO L226 Difference]: Without dead ends: 242787 [2023-11-29 05:53:42,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:42,899 INFO L413 NwaCegarLoop]: 1843 mSDtfsCounter, 805 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:42,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 2763 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:53:43,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242787 states. [2023-11-29 05:53:45,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242787 to 242419. [2023-11-29 05:53:45,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242419 states, 242417 states have (on average 1.4379725844309599) internal successors, (348589), 242418 states have internal predecessors, (348589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:45,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242419 states to 242419 states and 348589 transitions. [2023-11-29 05:53:45,960 INFO L78 Accepts]: Start accepts. Automaton has 242419 states and 348589 transitions. Word has length 250 [2023-11-29 05:53:45,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:45,960 INFO L495 AbstractCegarLoop]: Abstraction has 242419 states and 348589 transitions. [2023-11-29 05:53:45,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:45,961 INFO L276 IsEmpty]: Start isEmpty. Operand 242419 states and 348589 transitions. [2023-11-29 05:53:46,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-29 05:53:46,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:46,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:46,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 05:53:46,137 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:46,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:46,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1177595022, now seen corresponding path program 1 times [2023-11-29 05:53:46,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:46,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981314637] [2023-11-29 05:53:46,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:46,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:46,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:46,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:46,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981314637] [2023-11-29 05:53:46,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981314637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:46,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:46,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:53:46,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774922199] [2023-11-29 05:53:46,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:46,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:53:46,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:46,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:53:46,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:53:46,650 INFO L87 Difference]: Start difference. First operand 242419 states and 348589 transitions. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 4 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:48,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:48,169 INFO L93 Difference]: Finished difference Result 519891 states and 748065 transitions. [2023-11-29 05:53:48,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:53:48,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 4 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2023-11-29 05:53:48,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:48,420 INFO L225 Difference]: With dead ends: 519891 [2023-11-29 05:53:48,420 INFO L226 Difference]: Without dead ends: 281871 [2023-11-29 05:53:48,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:53:48,518 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 2948 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2948 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:48,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2948 Valid, 2445 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:53:48,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281871 states. [2023-11-29 05:53:51,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281871 to 241959. [2023-11-29 05:53:51,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241959 states, 241957 states have (on average 1.4369371417235295) internal successors, (347677), 241958 states have internal predecessors, (347677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:51,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241959 states to 241959 states and 347677 transitions. [2023-11-29 05:53:51,673 INFO L78 Accepts]: Start accepts. Automaton has 241959 states and 347677 transitions. Word has length 250 [2023-11-29 05:53:51,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:51,673 INFO L495 AbstractCegarLoop]: Abstraction has 241959 states and 347677 transitions. [2023-11-29 05:53:51,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 4 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:51,673 INFO L276 IsEmpty]: Start isEmpty. Operand 241959 states and 347677 transitions. [2023-11-29 05:53:51,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-11-29 05:53:51,862 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:51,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:51,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 05:53:51,863 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:53:51,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:51,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1732337343, now seen corresponding path program 1 times [2023-11-29 05:53:51,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:51,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634763042] [2023-11-29 05:53:51,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:51,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:52,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:52,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:52,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634763042] [2023-11-29 05:53:52,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634763042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:52,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:52,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:53:52,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139771872] [2023-11-29 05:53:52,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:52,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:53:52,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:52,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:53:52,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:53:52,807 INFO L87 Difference]: Start difference. First operand 241959 states and 347677 transitions. Second operand has 5 states, 5 states have (on average 50.4) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:54,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:54,436 INFO L93 Difference]: Finished difference Result 706232 states and 1013265 transitions. [2023-11-29 05:53:54,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:53:54,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.4) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 252 [2023-11-29 05:53:54,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:54,904 INFO L225 Difference]: With dead ends: 706232 [2023-11-29 05:53:54,904 INFO L226 Difference]: Without dead ends: 468768 [2023-11-29 05:53:55,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:53:55,013 INFO L413 NwaCegarLoop]: 1526 mSDtfsCounter, 2913 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2913 SdHoareTripleChecker+Valid, 2432 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:55,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2913 Valid, 2432 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:53:55,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468768 states. [2023-11-29 05:53:59,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468768 to 468755. [2023-11-29 05:54:00,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468755 states, 468753 states have (on average 1.423728488137676) internal successors, (667377), 468754 states have internal predecessors, (667377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:00,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468755 states to 468755 states and 667377 transitions. [2023-11-29 05:54:00,963 INFO L78 Accepts]: Start accepts. Automaton has 468755 states and 667377 transitions. Word has length 252 [2023-11-29 05:54:00,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:00,964 INFO L495 AbstractCegarLoop]: Abstraction has 468755 states and 667377 transitions. [2023-11-29 05:54:00,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.4) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:00,964 INFO L276 IsEmpty]: Start isEmpty. Operand 468755 states and 667377 transitions. [2023-11-29 05:54:01,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-11-29 05:54:01,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:01,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:01,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 05:54:01,232 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:54:01,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:01,232 INFO L85 PathProgramCache]: Analyzing trace with hash 616493940, now seen corresponding path program 1 times [2023-11-29 05:54:01,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:01,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921708291] [2023-11-29 05:54:01,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:01,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:02,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:02,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:02,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921708291] [2023-11-29 05:54:02,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921708291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:02,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:02,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:54:02,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128722641] [2023-11-29 05:54:02,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:02,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:54:02,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:02,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:54:02,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:54:02,368 INFO L87 Difference]: Start difference. First operand 468755 states and 667377 transitions. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:04,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:04,791 INFO L93 Difference]: Finished difference Result 1006554 states and 1432956 transitions. [2023-11-29 05:54:04,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:54:04,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 252 [2023-11-29 05:54:04,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:05,871 INFO L225 Difference]: With dead ends: 1006554 [2023-11-29 05:54:05,871 INFO L226 Difference]: Without dead ends: 550148 [2023-11-29 05:54:06,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:54:06,008 INFO L413 NwaCegarLoop]: 1535 mSDtfsCounter, 1999 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:06,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1999 Valid, 2445 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:54:06,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550148 states. [2023-11-29 05:54:10,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550148 to 465374. [2023-11-29 05:54:10,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465374 states, 465372 states have (on average 1.4191807844047344) internal successors, (660447), 465373 states have internal predecessors, (660447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:12,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465374 states to 465374 states and 660447 transitions. [2023-11-29 05:54:12,383 INFO L78 Accepts]: Start accepts. Automaton has 465374 states and 660447 transitions. Word has length 252 [2023-11-29 05:54:12,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:12,383 INFO L495 AbstractCegarLoop]: Abstraction has 465374 states and 660447 transitions. [2023-11-29 05:54:12,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:12,383 INFO L276 IsEmpty]: Start isEmpty. Operand 465374 states and 660447 transitions. [2023-11-29 05:54:12,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-29 05:54:12,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:12,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:12,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 05:54:12,650 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:54:12,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:12,650 INFO L85 PathProgramCache]: Analyzing trace with hash -177060160, now seen corresponding path program 1 times [2023-11-29 05:54:12,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:12,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909952938] [2023-11-29 05:54:12,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:12,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:12,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:12,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:12,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909952938] [2023-11-29 05:54:12,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909952938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:12,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:12,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:54:12,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252006518] [2023-11-29 05:54:12,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:12,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:54:12,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:12,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:54:12,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:54:12,785 INFO L87 Difference]: Start difference. First operand 465374 states and 660447 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:16,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:16,603 INFO L93 Difference]: Finished difference Result 1364954 states and 1936678 transitions. [2023-11-29 05:54:16,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:54:16,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 254 [2023-11-29 05:54:16,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:17,739 INFO L225 Difference]: With dead ends: 1364954 [2023-11-29 05:54:17,739 INFO L226 Difference]: Without dead ends: 915777 [2023-11-29 05:54:18,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:54:18,535 INFO L413 NwaCegarLoop]: 1805 mSDtfsCounter, 851 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:18,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 2755 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:54:19,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915777 states. [2023-11-29 05:54:25,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915777 to 469105. [2023-11-29 05:54:25,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469105 states, 469103 states have (on average 1.4188291270787012) internal successors, (665577), 469104 states have internal predecessors, (665577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:26,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469105 states to 469105 states and 665577 transitions. [2023-11-29 05:54:26,331 INFO L78 Accepts]: Start accepts. Automaton has 469105 states and 665577 transitions. Word has length 254 [2023-11-29 05:54:26,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:26,332 INFO L495 AbstractCegarLoop]: Abstraction has 469105 states and 665577 transitions. [2023-11-29 05:54:26,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:26,332 INFO L276 IsEmpty]: Start isEmpty. Operand 469105 states and 665577 transitions. [2023-11-29 05:54:27,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-11-29 05:54:27,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:27,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:27,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 05:54:27,195 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:54:27,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:27,195 INFO L85 PathProgramCache]: Analyzing trace with hash -310312755, now seen corresponding path program 1 times [2023-11-29 05:54:27,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:27,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434735296] [2023-11-29 05:54:27,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:27,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:27,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:27,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:27,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434735296] [2023-11-29 05:54:27,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434735296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:27,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:27,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:54:27,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624895154] [2023-11-29 05:54:27,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:27,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:54:27,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:27,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:54:27,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:54:27,280 INFO L87 Difference]: Start difference. First operand 469105 states and 665577 transitions. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:30,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:30,529 INFO L93 Difference]: Finished difference Result 1369879 states and 1942605 transitions. [2023-11-29 05:54:30,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:54:30,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 255 [2023-11-29 05:54:30,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:31,544 INFO L225 Difference]: With dead ends: 1369879 [2023-11-29 05:54:31,544 INFO L226 Difference]: Without dead ends: 919974 [2023-11-29 05:54:31,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:54:31,732 INFO L413 NwaCegarLoop]: 1805 mSDtfsCounter, 846 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:31,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 2755 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:54:32,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919974 states. [2023-11-29 05:54:38,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919974 to 473688. [2023-11-29 05:54:38,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473688 states, 473686 states have (on average 1.4164552045025607) internal successors, (670955), 473687 states have internal predecessors, (670955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:40,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473688 states to 473688 states and 670955 transitions. [2023-11-29 05:54:40,062 INFO L78 Accepts]: Start accepts. Automaton has 473688 states and 670955 transitions. Word has length 255 [2023-11-29 05:54:40,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:40,062 INFO L495 AbstractCegarLoop]: Abstraction has 473688 states and 670955 transitions. [2023-11-29 05:54:40,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:40,063 INFO L276 IsEmpty]: Start isEmpty. Operand 473688 states and 670955 transitions. [2023-11-29 05:54:40,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-11-29 05:54:40,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:40,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:40,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 05:54:40,371 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:54:40,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:40,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1972531091, now seen corresponding path program 1 times [2023-11-29 05:54:40,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:40,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620189767] [2023-11-29 05:54:40,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:40,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:41,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:41,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:41,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620189767] [2023-11-29 05:54:41,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620189767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:41,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:41,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:54:41,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776023762] [2023-11-29 05:54:41,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:41,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:54:41,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:41,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:54:41,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:54:41,174 INFO L87 Difference]: Start difference. First operand 473688 states and 670955 transitions. Second operand has 5 states, 5 states have (on average 51.2) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:43,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:43,833 INFO L93 Difference]: Finished difference Result 1007210 states and 1427747 transitions. [2023-11-29 05:54:43,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:54:43,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 51.2) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 256 [2023-11-29 05:54:43,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:44,608 INFO L225 Difference]: With dead ends: 1007210 [2023-11-29 05:54:44,608 INFO L226 Difference]: Without dead ends: 551652 [2023-11-29 05:54:44,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:54:44,834 INFO L413 NwaCegarLoop]: 1517 mSDtfsCounter, 2950 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2950 SdHoareTripleChecker+Valid, 2423 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:44,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2950 Valid, 2423 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:54:45,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551652 states. [2023-11-29 05:54:50,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551652 to 468634. [2023-11-29 05:54:50,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468634 states, 468632 states have (on average 1.4140071527339149) internal successors, (662649), 468633 states have internal predecessors, (662649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:51,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468634 states to 468634 states and 662649 transitions. [2023-11-29 05:54:51,267 INFO L78 Accepts]: Start accepts. Automaton has 468634 states and 662649 transitions. Word has length 256 [2023-11-29 05:54:51,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:51,267 INFO L495 AbstractCegarLoop]: Abstraction has 468634 states and 662649 transitions. [2023-11-29 05:54:51,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.2) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:51,267 INFO L276 IsEmpty]: Start isEmpty. Operand 468634 states and 662649 transitions. [2023-11-29 05:54:52,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-11-29 05:54:52,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:52,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:52,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 05:54:52,156 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:54:52,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:52,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1669918145, now seen corresponding path program 1 times [2023-11-29 05:54:52,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:52,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140997692] [2023-11-29 05:54:52,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:52,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:52,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:52,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:52,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140997692] [2023-11-29 05:54:52,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140997692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:52,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:52,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:54:52,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543632697] [2023-11-29 05:54:52,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:52,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:54:52,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:52,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:54:52,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:54:52,606 INFO L87 Difference]: Start difference. First operand 468634 states and 662649 transitions. Second operand has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:54:55,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:55,763 INFO L93 Difference]: Finished difference Result 1244400 states and 1756981 transitions. [2023-11-29 05:54:55,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:54:55,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 258 [2023-11-29 05:54:55,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:56,669 INFO L225 Difference]: With dead ends: 1244400 [2023-11-29 05:54:56,670 INFO L226 Difference]: Without dead ends: 803750 [2023-11-29 05:54:56,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:54:56,836 INFO L413 NwaCegarLoop]: 1396 mSDtfsCounter, 1849 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1849 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:56,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1849 Valid, 3311 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:54:57,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803750 states. [2023-11-29 05:55:03,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803750 to 489200. [2023-11-29 05:55:03,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489200 states, 489198 states have (on average 1.4115695485263635) internal successors, (690537), 489199 states have internal predecessors, (690537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:55:04,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489200 states to 489200 states and 690537 transitions. [2023-11-29 05:55:04,299 INFO L78 Accepts]: Start accepts. Automaton has 489200 states and 690537 transitions. Word has length 258 [2023-11-29 05:55:04,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:55:04,299 INFO L495 AbstractCegarLoop]: Abstraction has 489200 states and 690537 transitions. [2023-11-29 05:55:04,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:55:04,299 INFO L276 IsEmpty]: Start isEmpty. Operand 489200 states and 690537 transitions. [2023-11-29 05:55:05,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-11-29 05:55:05,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:55:05,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:55:05,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 05:55:05,185 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:55:05,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:55:05,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1039086858, now seen corresponding path program 1 times [2023-11-29 05:55:05,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:55:05,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938609903] [2023-11-29 05:55:05,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:05,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:55:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:55:05,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:55:05,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:55:05,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938609903] [2023-11-29 05:55:05,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938609903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:55:05,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:55:05,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:55:05,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585951372] [2023-11-29 05:55:05,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:55:05,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:55:05,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:55:05,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:55:05,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:55:05,282 INFO L87 Difference]: Start difference. First operand 489200 states and 690537 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:55:08,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:55:08,431 INFO L93 Difference]: Finished difference Result 1366852 states and 1926769 transitions. [2023-11-29 05:55:08,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:55:08,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 260 [2023-11-29 05:55:08,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:55:09,459 INFO L225 Difference]: With dead ends: 1366852 [2023-11-29 05:55:09,459 INFO L226 Difference]: Without dead ends: 930082 [2023-11-29 05:55:09,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:55:09,639 INFO L413 NwaCegarLoop]: 1772 mSDtfsCounter, 818 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:55:09,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 2721 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:55:10,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930082 states. [2023-11-29 05:55:16,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930082 to 501328. [2023-11-29 05:55:16,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501328 states, 501326 states have (on average 1.4104295408576455) internal successors, (707085), 501327 states have internal predecessors, (707085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:55:18,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501328 states to 501328 states and 707085 transitions. [2023-11-29 05:55:18,108 INFO L78 Accepts]: Start accepts. Automaton has 501328 states and 707085 transitions. Word has length 260 [2023-11-29 05:55:18,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:55:18,109 INFO L495 AbstractCegarLoop]: Abstraction has 501328 states and 707085 transitions. [2023-11-29 05:55:18,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:55:18,109 INFO L276 IsEmpty]: Start isEmpty. Operand 501328 states and 707085 transitions. [2023-11-29 05:55:18,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-11-29 05:55:18,449 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:55:18,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:55:18,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 05:55:18,450 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:55:18,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:55:18,450 INFO L85 PathProgramCache]: Analyzing trace with hash -533435491, now seen corresponding path program 1 times [2023-11-29 05:55:18,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:55:18,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742318409] [2023-11-29 05:55:18,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:18,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:55:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:55:18,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:55:18,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:55:18,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742318409] [2023-11-29 05:55:18,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742318409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:55:18,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:55:18,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:55:18,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114014761] [2023-11-29 05:55:18,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:55:18,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:55:18,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:55:18,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:55:18,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:55:18,561 INFO L87 Difference]: Start difference. First operand 501328 states and 707085 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:55:22,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:55:22,309 INFO L93 Difference]: Finished difference Result 1382052 states and 1945643 transitions. [2023-11-29 05:55:22,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:55:22,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 261 [2023-11-29 05:55:22,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:55:23,414 INFO L225 Difference]: With dead ends: 1382052 [2023-11-29 05:55:23,414 INFO L226 Difference]: Without dead ends: 944570 [2023-11-29 05:55:23,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:55:23,686 INFO L413 NwaCegarLoop]: 1772 mSDtfsCounter, 813 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:55:23,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 2721 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:55:24,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944570 states. [2023-11-29 05:55:31,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944570 to 515816. [2023-11-29 05:55:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515816 states, 515814 states have (on average 1.4026393234770673) internal successors, (723501), 515815 states have internal predecessors, (723501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:55:32,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515816 states to 515816 states and 723501 transitions. [2023-11-29 05:55:32,252 INFO L78 Accepts]: Start accepts. Automaton has 515816 states and 723501 transitions. Word has length 261 [2023-11-29 05:55:32,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:55:32,252 INFO L495 AbstractCegarLoop]: Abstraction has 515816 states and 723501 transitions. [2023-11-29 05:55:32,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:55:32,253 INFO L276 IsEmpty]: Start isEmpty. Operand 515816 states and 723501 transitions. [2023-11-29 05:55:33,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-11-29 05:55:33,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:55:33,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:55:33,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 05:55:33,216 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:55:33,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:55:33,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1491126877, now seen corresponding path program 1 times [2023-11-29 05:55:33,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:55:33,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633430372] [2023-11-29 05:55:33,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:33,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:55:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:55:33,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:55:33,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:55:33,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633430372] [2023-11-29 05:55:33,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633430372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:55:33,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:55:33,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:55:33,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646779746] [2023-11-29 05:55:33,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:55:33,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:55:33,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:55:33,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:55:33,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:55:33,601 INFO L87 Difference]: Start difference. First operand 515816 states and 723501 transitions. Second operand has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:55:36,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:55:36,650 INFO L93 Difference]: Finished difference Result 1360101 states and 1907149 transitions. [2023-11-29 05:55:36,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:55:36,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2023-11-29 05:55:36,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:55:37,693 INFO L225 Difference]: With dead ends: 1360101 [2023-11-29 05:55:37,693 INFO L226 Difference]: Without dead ends: 903139 [2023-11-29 05:55:37,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:55:37,887 INFO L413 NwaCegarLoop]: 1452 mSDtfsCounter, 1824 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1824 SdHoareTripleChecker+Valid, 3367 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:55:37,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1824 Valid, 3367 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:55:38,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903139 states. [2023-11-29 05:55:45,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903139 to 530891. [2023-11-29 05:55:45,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530891 states, 530889 states have (on average 1.3981623277182236) internal successors, (742269), 530890 states have internal predecessors, (742269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:55:46,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530891 states to 530891 states and 742269 transitions. [2023-11-29 05:55:46,041 INFO L78 Accepts]: Start accepts. Automaton has 530891 states and 742269 transitions. Word has length 262 [2023-11-29 05:55:46,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:55:46,041 INFO L495 AbstractCegarLoop]: Abstraction has 530891 states and 742269 transitions. [2023-11-29 05:55:46,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:55:46,041 INFO L276 IsEmpty]: Start isEmpty. Operand 530891 states and 742269 transitions. [2023-11-29 05:55:47,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-29 05:55:47,010 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:55:47,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:55:47,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 05:55:47,010 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:55:47,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:55:47,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1980788384, now seen corresponding path program 1 times [2023-11-29 05:55:47,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:55:47,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562338903] [2023-11-29 05:55:47,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:47,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:55:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:55:47,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:55:47,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:55:47,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562338903] [2023-11-29 05:55:47,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562338903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:55:47,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:55:47,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:55:47,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973324574] [2023-11-29 05:55:47,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:55:47,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:55:47,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:55:47,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:55:47,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:55:47,290 INFO L87 Difference]: Start difference. First operand 530891 states and 742269 transitions. Second operand has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:55:50,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:55:50,270 INFO L93 Difference]: Finished difference Result 1374536 states and 1921971 transitions. [2023-11-29 05:55:50,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:55:50,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 264 [2023-11-29 05:55:50,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:55:51,262 INFO L225 Difference]: With dead ends: 1374536 [2023-11-29 05:55:51,262 INFO L226 Difference]: Without dead ends: 928962 [2023-11-29 05:55:51,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:55:51,442 INFO L413 NwaCegarLoop]: 1445 mSDtfsCounter, 1811 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 3360 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:55:51,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 3360 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:55:52,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928962 states. [2023-11-29 05:55:58,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928962 to 562304. [2023-11-29 05:55:59,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562304 states, 562302 states have (on average 1.392477707708669) internal successors, (782993), 562303 states have internal predecessors, (782993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:56:00,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562304 states to 562304 states and 782993 transitions. [2023-11-29 05:56:00,625 INFO L78 Accepts]: Start accepts. Automaton has 562304 states and 782993 transitions. Word has length 264 [2023-11-29 05:56:00,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:56:00,625 INFO L495 AbstractCegarLoop]: Abstraction has 562304 states and 782993 transitions. [2023-11-29 05:56:00,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:56:00,625 INFO L276 IsEmpty]: Start isEmpty. Operand 562304 states and 782993 transitions. [2023-11-29 05:56:01,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-29 05:56:01,090 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:56:01,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:56:01,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 05:56:01,091 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:56:01,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:56:01,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1612103817, now seen corresponding path program 1 times [2023-11-29 05:56:01,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:56:01,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663046940] [2023-11-29 05:56:01,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:56:01,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:56:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:56:02,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:56:02,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:56:02,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663046940] [2023-11-29 05:56:02,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663046940] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:56:02,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:56:02,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:56:02,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390063315] [2023-11-29 05:56:02,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:56:02,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:56:02,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:56:02,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:56:02,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:56:02,073 INFO L87 Difference]: Start difference. First operand 562304 states and 782993 transitions. Second operand has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:56:06,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:56:06,257 INFO L93 Difference]: Finished difference Result 1778360 states and 2479047 transitions. [2023-11-29 05:56:06,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:56:06,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 264 [2023-11-29 05:56:06,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:56:08,359 INFO L225 Difference]: With dead ends: 1778360 [2023-11-29 05:56:08,359 INFO L226 Difference]: Without dead ends: 1355750 [2023-11-29 05:56:08,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:56:08,587 INFO L413 NwaCegarLoop]: 1714 mSDtfsCounter, 2285 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2285 SdHoareTripleChecker+Valid, 4394 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:56:08,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2285 Valid, 4394 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:56:09,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355750 states. [2023-11-29 05:56:18,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355750 to 668546. [2023-11-29 05:56:18,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668546 states, 668544 states have (on average 1.3849933587018954) internal successors, (925929), 668545 states have internal predecessors, (925929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:56:19,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668546 states to 668546 states and 925929 transitions. [2023-11-29 05:56:19,958 INFO L78 Accepts]: Start accepts. Automaton has 668546 states and 925929 transitions. Word has length 264 [2023-11-29 05:56:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:56:19,959 INFO L495 AbstractCegarLoop]: Abstraction has 668546 states and 925929 transitions. [2023-11-29 05:56:19,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:56:19,959 INFO L276 IsEmpty]: Start isEmpty. Operand 668546 states and 925929 transitions. [2023-11-29 05:56:21,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-11-29 05:56:21,109 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:56:21,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:56:21,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 05:56:21,110 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:56:21,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:56:21,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1944083865, now seen corresponding path program 1 times [2023-11-29 05:56:21,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:56:21,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043931296] [2023-11-29 05:56:21,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:56:21,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:56:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:56:21,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:56:21,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:56:21,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043931296] [2023-11-29 05:56:21,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043931296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:56:21,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:56:21,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:56:21,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892270990] [2023-11-29 05:56:21,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:56:21,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:56:21,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:56:21,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:56:21,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:56:21,187 INFO L87 Difference]: Start difference. First operand 668546 states and 925929 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:56:24,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:56:24,724 INFO L93 Difference]: Finished difference Result 1504806 states and 2091709 transitions. [2023-11-29 05:56:24,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:56:24,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2023-11-29 05:56:24,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:56:26,074 INFO L225 Difference]: With dead ends: 1504806 [2023-11-29 05:56:26,074 INFO L226 Difference]: Without dead ends: 1089364 [2023-11-29 05:56:26,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:56:26,323 INFO L413 NwaCegarLoop]: 1739 mSDtfsCounter, 785 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 2688 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:56:26,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 2688 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:56:27,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089364 states. [2023-11-29 05:56:35,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089364 to 678626. [2023-11-29 05:56:35,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678626 states, 678624 states have (on average 1.3849804899325695) internal successors, (939881), 678625 states have internal predecessors, (939881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:56:37,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678626 states to 678626 states and 939881 transitions. [2023-11-29 05:56:37,577 INFO L78 Accepts]: Start accepts. Automaton has 678626 states and 939881 transitions. Word has length 266 [2023-11-29 05:56:37,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:56:37,577 INFO L495 AbstractCegarLoop]: Abstraction has 678626 states and 939881 transitions. [2023-11-29 05:56:37,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:56:37,577 INFO L276 IsEmpty]: Start isEmpty. Operand 678626 states and 939881 transitions. [2023-11-29 05:56:38,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-11-29 05:56:38,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:56:38,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:56:38,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 05:56:38,109 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:56:38,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:56:38,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1798387246, now seen corresponding path program 1 times [2023-11-29 05:56:38,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:56:38,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269549894] [2023-11-29 05:56:38,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:56:38,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:56:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:56:38,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:56:38,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:56:38,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269549894] [2023-11-29 05:56:38,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269549894] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:56:38,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:56:38,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:56:38,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650360611] [2023-11-29 05:56:38,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:56:38,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:56:38,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:56:38,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:56:38,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:56:38,181 INFO L87 Difference]: Start difference. First operand 678626 states and 939881 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:56:42,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:56:42,097 INFO L93 Difference]: Finished difference Result 1513414 states and 2101245 transitions. [2023-11-29 05:56:42,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:56:42,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 267 [2023-11-29 05:56:42,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:56:43,363 INFO L225 Difference]: With dead ends: 1513414 [2023-11-29 05:56:43,363 INFO L226 Difference]: Without dead ends: 1097972 [2023-11-29 05:56:43,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:56:43,539 INFO L413 NwaCegarLoop]: 1736 mSDtfsCounter, 777 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:56:43,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 2685 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:56:44,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097972 states. [2023-11-29 05:56:52,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097972 to 687650. [2023-11-29 05:56:52,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687650 states, 687648 states have (on average 1.3806729605844852) internal successors, (949417), 687649 states have internal predecessors, (949417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:56:53,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687650 states to 687650 states and 949417 transitions. [2023-11-29 05:56:53,482 INFO L78 Accepts]: Start accepts. Automaton has 687650 states and 949417 transitions. Word has length 267 [2023-11-29 05:56:53,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:56:53,482 INFO L495 AbstractCegarLoop]: Abstraction has 687650 states and 949417 transitions. [2023-11-29 05:56:53,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:56:53,483 INFO L276 IsEmpty]: Start isEmpty. Operand 687650 states and 949417 transitions. [2023-11-29 05:56:54,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-11-29 05:56:54,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:56:54,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:56:54,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 05:56:54,613 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:56:54,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:56:54,613 INFO L85 PathProgramCache]: Analyzing trace with hash 55739220, now seen corresponding path program 1 times [2023-11-29 05:56:54,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:56:54,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800595302] [2023-11-29 05:56:54,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:56:54,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:56:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:56:54,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:56:54,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:56:54,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800595302] [2023-11-29 05:56:54,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800595302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:56:54,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:56:54,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:56:54,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687759883] [2023-11-29 05:56:54,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:56:54,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:56:54,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:56:54,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:56:54,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:56:54,865 INFO L87 Difference]: Start difference. First operand 687650 states and 949417 transitions. Second operand has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:56:59,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:56:59,856 INFO L93 Difference]: Finished difference Result 2066086 states and 2861556 transitions. [2023-11-29 05:56:59,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:56:59,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 268 [2023-11-29 05:56:59,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:57:02,191 INFO L225 Difference]: With dead ends: 2066086 [2023-11-29 05:57:02,192 INFO L226 Difference]: Without dead ends: 1637588 [2023-11-29 05:57:02,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:57:02,561 INFO L413 NwaCegarLoop]: 2634 mSDtfsCounter, 1755 mSDsluCounter, 2682 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 5316 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:57:02,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1755 Valid, 5316 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:57:03,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637588 states. [2023-11-29 05:57:14,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637588 to 799024. [2023-11-29 05:57:15,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799024 states, 799022 states have (on average 1.3765853756216975) internal successors, (1099922), 799023 states have internal predecessors, (1099922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:57:16,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799024 states to 799024 states and 1099922 transitions. [2023-11-29 05:57:16,984 INFO L78 Accepts]: Start accepts. Automaton has 799024 states and 1099922 transitions. Word has length 268 [2023-11-29 05:57:16,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:57:16,984 INFO L495 AbstractCegarLoop]: Abstraction has 799024 states and 1099922 transitions. [2023-11-29 05:57:16,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:57:16,985 INFO L276 IsEmpty]: Start isEmpty. Operand 799024 states and 1099922 transitions. [2023-11-29 05:57:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-11-29 05:57:17,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:57:17,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:57:17,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 05:57:17,706 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:57:17,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:57:17,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1216429447, now seen corresponding path program 1 times [2023-11-29 05:57:17,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:57:17,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069283587] [2023-11-29 05:57:17,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:57:17,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:57:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:57:17,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:57:17,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:57:17,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069283587] [2023-11-29 05:57:17,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069283587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:57:17,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:57:17,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:57:17,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489117390] [2023-11-29 05:57:17,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:57:17,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:57:17,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:57:17,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:57:17,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:57:17,806 INFO L87 Difference]: Start difference. First operand 799024 states and 1099922 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:57:22,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:57:22,653 INFO L93 Difference]: Finished difference Result 1800305 states and 2489551 transitions. [2023-11-29 05:57:22,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:57:22,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 268 [2023-11-29 05:57:22,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:57:24,652 INFO L225 Difference]: With dead ends: 1800305 [2023-11-29 05:57:24,652 INFO L226 Difference]: Without dead ends: 1315198 [2023-11-29 05:57:24,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:57:24,882 INFO L413 NwaCegarLoop]: 1852 mSDtfsCounter, 788 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 2768 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:57:24,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 2768 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:57:25,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315198 states. [2023-11-29 05:57:37,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315198 to 1315160. [2023-11-29 05:57:37,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315160 states, 1315158 states have (on average 1.3708307290835018) internal successors, (1802859), 1315159 states have internal predecessors, (1802859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:57:41,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315160 states to 1315160 states and 1802859 transitions. [2023-11-29 05:57:41,726 INFO L78 Accepts]: Start accepts. Automaton has 1315160 states and 1802859 transitions. Word has length 268 [2023-11-29 05:57:41,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:57:41,727 INFO L495 AbstractCegarLoop]: Abstraction has 1315160 states and 1802859 transitions. [2023-11-29 05:57:41,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:57:41,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1315160 states and 1802859 transitions. [2023-11-29 05:57:43,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-11-29 05:57:43,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:57:43,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:57:43,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 05:57:43,284 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:57:43,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:57:43,284 INFO L85 PathProgramCache]: Analyzing trace with hash -736756724, now seen corresponding path program 1 times [2023-11-29 05:57:43,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:57:43,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966956529] [2023-11-29 05:57:43,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:57:43,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:57:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:57:43,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:57:43,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:57:43,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966956529] [2023-11-29 05:57:43,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966956529] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:57:43,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:57:43,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:57:43,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241241871] [2023-11-29 05:57:43,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:57:43,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:57:43,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:57:43,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:57:43,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:57:43,587 INFO L87 Difference]: Start difference. First operand 1315160 states and 1802859 transitions. Second operand has 4 states, 4 states have (on average 67.5) internal successors, (270), 4 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)