./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-63.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-63.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC --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 ddb079fdd3784496be289fc7e9dce8b5519454d886eda78b14b11167cae45c0d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:47:50,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:47:50,306 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:47:50,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:47:50,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:47:50,364 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:47:50,368 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:47:50,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:47:50,369 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:47:50,369 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:47:50,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:47:50,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:47:50,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:47:50,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:47:50,370 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:47:50,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:47:50,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:47:50,371 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:47:50,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:47:50,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:47:50,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:47:50,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:47:50,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:47:50,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:47:50,372 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:47:50,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:47:50,374 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:47:50,374 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:47:50,374 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:47:50,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:47:50,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:47:50,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:47:50,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:47:50,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:47:50,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:47:50,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:47:50,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:47:50,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:47:50,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:47:50,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:47:50,376 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:47:50,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:47:50,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:47:50,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:47:50,376 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:47:50,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:47:50,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:47:50,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:47:50,377 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC 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 -> ddb079fdd3784496be289fc7e9dce8b5519454d886eda78b14b11167cae45c0d [2024-11-24 00:47:50,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:47:50,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:47:50,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:47:50,718 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:47:50,719 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:47:50,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-63.i [2024-11-24 00:47:54,549 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/data/b321a3d90/e31a65a5884c4d968fc8639d8e39d372/FLAG73f663425 [2024-11-24 00:47:54,975 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:47:54,976 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-63.i [2024-11-24 00:47:55,004 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/data/b321a3d90/e31a65a5884c4d968fc8639d8e39d372/FLAG73f663425 [2024-11-24 00:47:55,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/data/b321a3d90/e31a65a5884c4d968fc8639d8e39d372 [2024-11-24 00:47:55,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:47:55,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:47:55,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:47:55,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:47:55,050 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:47:55,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:55,052 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@184d1f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55, skipping insertion in model container [2024-11-24 00:47:55,052 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:55,114 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:47:55,315 WARN L250 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_83b28299-d828-4240-833e-039ee2895134/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-63.i[916,929] [2024-11-24 00:47:55,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:47:55,551 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:47:55,566 WARN L250 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_83b28299-d828-4240-833e-039ee2895134/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-63.i[916,929] [2024-11-24 00:47:55,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:47:55,739 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:47:55,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55 WrapperNode [2024-11-24 00:47:55,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:47:55,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:47:55,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:47:55,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:47:55,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:55,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:55,888 INFO L138 Inliner]: procedures = 26, calls = 109, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 916 [2024-11-24 00:47:55,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:47:55,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:47:55,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:47:55,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:47:55,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:55,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:55,910 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:55,978 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:47:55,978 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:55,978 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:56,004 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:56,006 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:56,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:56,021 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:56,031 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:56,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:47:56,053 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:47:56,054 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:47:56,054 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:47:56,055 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55" (1/1) ... [2024-11-24 00:47:56,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:47:56,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:47:56,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:47:56,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:47:56,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:47:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:47:56,132 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:47:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:47:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:47:56,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:47:56,402 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:47:56,404 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:47:58,342 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-24 00:47:58,342 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:47:58,377 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:47:58,378 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:47:58,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:47:58 BoogieIcfgContainer [2024-11-24 00:47:58,378 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:47:58,386 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:47:58,386 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:47:58,393 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:47:58,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:47:55" (1/3) ... [2024-11-24 00:47:58,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb60fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:47:58, skipping insertion in model container [2024-11-24 00:47:58,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:47:55" (2/3) ... [2024-11-24 00:47:58,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb60fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:47:58, skipping insertion in model container [2024-11-24 00:47:58,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:47:58" (3/3) ... [2024-11-24 00:47:58,397 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-63.i [2024-11-24 00:47:58,416 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:47:58,421 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-63.i that has 2 procedures, 368 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:47:58,546 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:47:58,563 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a6b6d27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:47:58,564 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:47:58,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 368 states, 269 states have (on average 1.5947955390334572) internal successors, (429), 270 states have internal predecessors, (429), 96 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 00:47:58,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-24 00:47:58,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:47:58,639 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:47:58,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:47:58,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:47:58,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1723170382, now seen corresponding path program 1 times [2024-11-24 00:47:58,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:47:58,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535346352] [2024-11-24 00:47:58,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:47:58,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:47:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:47:59,890 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 18050 trivial. 0 not checked. [2024-11-24 00:47:59,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:47:59,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535346352] [2024-11-24 00:47:59,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535346352] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:47:59,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467939563] [2024-11-24 00:47:59,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:47:59,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:47:59,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:47:59,898 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:47:59,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:48:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:00,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 1498 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:48:00,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:00,689 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 18050 trivial. 0 not checked. [2024-11-24 00:48:00,689 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:00,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467939563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:00,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:48:00,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:48:00,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612367527] [2024-11-24 00:48:00,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:00,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:48:00,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:00,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:48:00,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:48:00,734 INFO L87 Difference]: Start difference. First operand has 368 states, 269 states have (on average 1.5947955390334572) internal successors, (429), 270 states have internal predecessors, (429), 96 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 2 states have call successors, (96), 2 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 2 states have call successors, (96) [2024-11-24 00:48:00,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:00,816 INFO L93 Difference]: Finished difference Result 728 states and 1330 transitions. [2024-11-24 00:48:00,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:48:00,819 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 2 states have call successors, (96), 2 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 2 states have call successors, (96) Word has length 641 [2024-11-24 00:48:00,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:00,832 INFO L225 Difference]: With dead ends: 728 [2024-11-24 00:48:00,833 INFO L226 Difference]: Without dead ends: 363 [2024-11-24 00:48:00,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:48:00,842 INFO L435 NwaCegarLoop]: 607 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:00,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:00,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-24 00:48:00,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-11-24 00:48:00,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 265 states have (on average 1.5660377358490567) internal successors, (415), 265 states have internal predecessors, (415), 96 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 00:48:00,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 607 transitions. [2024-11-24 00:48:00,969 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 607 transitions. Word has length 641 [2024-11-24 00:48:00,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:00,970 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 607 transitions. [2024-11-24 00:48:00,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 2 states have call successors, (96), 2 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 2 states have call successors, (96) [2024-11-24 00:48:00,970 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 607 transitions. [2024-11-24 00:48:00,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-24 00:48:00,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:01,000 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:01,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:48:01,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b28299-d828-4240-833e-039ee2895134/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:48:01,204 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:01,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:01,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1123633014, now seen corresponding path program 1 times [2024-11-24 00:48:01,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:01,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283199386] [2024-11-24 00:48:01,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:01,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:02,355 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:48:02,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:02,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283199386] [2024-11-24 00:48:02,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283199386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:02,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:02,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:48:02,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460817354] [2024-11-24 00:48:02,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:02,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:02,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:02,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:02,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:02,364 INFO L87 Difference]: Start difference. First operand 363 states and 607 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:02,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:02,525 INFO L93 Difference]: Finished difference Result 965 states and 1616 transitions. [2024-11-24 00:48:02,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:48:02,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 641 [2024-11-24 00:48:02,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:02,544 INFO L225 Difference]: With dead ends: 965 [2024-11-24 00:48:02,544 INFO L226 Difference]: Without dead ends: 605 [2024-11-24 00:48:02,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:02,548 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 396 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:02,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:48:02,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-24 00:48:02,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 602. [2024-11-24 00:48:02,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 465 states have (on average 1.5870967741935484) internal successors, (738), 466 states have internal predecessors, (738), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 133 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-24 00:48:02,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1006 transitions. [2024-11-24 00:48:02,634 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1006 transitions. Word has length 641 [2024-11-24 00:48:02,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:02,636 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 1006 transitions. [2024-11-24 00:48:02,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:02,636 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1006 transitions. [2024-11-24 00:48:02,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-24 00:48:02,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:02,656 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:02,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:48:02,656 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:02,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:02,659 INFO L85 PathProgramCache]: Analyzing trace with hash 128939316, now seen corresponding path program 1 times [2024-11-24 00:48:02,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:02,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751322950] [2024-11-24 00:48:02,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:02,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:03,726 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:48:03,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:03,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751322950] [2024-11-24 00:48:03,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751322950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:03,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:03,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:48:03,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631562518] [2024-11-24 00:48:03,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:03,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:03,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:03,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:03,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:03,739 INFO L87 Difference]: Start difference. First operand 602 states and 1006 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:03,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:03,814 INFO L93 Difference]: Finished difference Result 1203 states and 2013 transitions. [2024-11-24 00:48:03,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:48:03,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 641 [2024-11-24 00:48:03,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:03,831 INFO L225 Difference]: With dead ends: 1203 [2024-11-24 00:48:03,831 INFO L226 Difference]: Without dead ends: 604 [2024-11-24 00:48:03,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:03,837 INFO L435 NwaCegarLoop]: 606 mSDtfsCounter, 0 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:03,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1206 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:03,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-24 00:48:03,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2024-11-24 00:48:03,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 467 states have (on average 1.5845824411134903) internal successors, (740), 468 states have internal predecessors, (740), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 133 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-24 00:48:03,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 1008 transitions. [2024-11-24 00:48:03,955 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 1008 transitions. Word has length 641 [2024-11-24 00:48:03,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:03,963 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 1008 transitions. [2024-11-24 00:48:03,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:03,963 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 1008 transitions. [2024-11-24 00:48:03,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-24 00:48:03,977 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:03,978 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:03,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:48:03,978 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:03,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:03,979 INFO L85 PathProgramCache]: Analyzing trace with hash 562668402, now seen corresponding path program 1 times [2024-11-24 00:48:03,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:03,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636728350] [2024-11-24 00:48:03,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:03,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:04,601 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:48:04,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:04,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636728350] [2024-11-24 00:48:04,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636728350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:04,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:04,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:48:04,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946244157] [2024-11-24 00:48:04,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:04,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:04,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:04,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:04,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:04,607 INFO L87 Difference]: Start difference. First operand 604 states and 1008 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:04,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:04,725 INFO L93 Difference]: Finished difference Result 1212 states and 2018 transitions. [2024-11-24 00:48:04,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:48:04,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 641 [2024-11-24 00:48:04,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:04,734 INFO L225 Difference]: With dead ends: 1212 [2024-11-24 00:48:04,734 INFO L226 Difference]: Without dead ends: 611 [2024-11-24 00:48:04,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:04,737 INFO L435 NwaCegarLoop]: 622 mSDtfsCounter, 358 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:04,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1210 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:48:04,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-24 00:48:04,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 481. [2024-11-24 00:48:04,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 382 states have (on average 1.6073298429319371) internal successors, (614), 382 states have internal predecessors, (614), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 00:48:04,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 806 transitions. [2024-11-24 00:48:04,808 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 806 transitions. Word has length 641 [2024-11-24 00:48:04,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:04,810 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 806 transitions. [2024-11-24 00:48:04,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:04,810 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 806 transitions. [2024-11-24 00:48:04,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-24 00:48:04,832 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:04,833 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:04,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:48:04,833 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:04,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:04,834 INFO L85 PathProgramCache]: Analyzing trace with hash 810814896, now seen corresponding path program 1 times [2024-11-24 00:48:04,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:04,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896496057] [2024-11-24 00:48:04,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:04,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:05,294 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:48:05,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:05,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896496057] [2024-11-24 00:48:05,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896496057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:05,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:05,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:48:05,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739352530] [2024-11-24 00:48:05,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:05,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:05,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:05,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:05,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:05,300 INFO L87 Difference]: Start difference. First operand 481 states and 806 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:05,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:05,395 INFO L93 Difference]: Finished difference Result 1435 states and 2408 transitions. [2024-11-24 00:48:05,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:48:05,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 641 [2024-11-24 00:48:05,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:05,407 INFO L225 Difference]: With dead ends: 1435 [2024-11-24 00:48:05,407 INFO L226 Difference]: Without dead ends: 957 [2024-11-24 00:48:05,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:05,410 INFO L435 NwaCegarLoop]: 1027 mSDtfsCounter, 572 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:05,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1628 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:05,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2024-11-24 00:48:05,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 955. [2024-11-24 00:48:05,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 758 states have (on average 1.6055408970976253) internal successors, (1217), 758 states have internal predecessors, (1217), 192 states have call successors, (192), 4 states have call predecessors, (192), 4 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-24 00:48:05,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1601 transitions. [2024-11-24 00:48:05,535 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1601 transitions. Word has length 641 [2024-11-24 00:48:05,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:05,539 INFO L471 AbstractCegarLoop]: Abstraction has 955 states and 1601 transitions. [2024-11-24 00:48:05,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:05,539 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1601 transitions. [2024-11-24 00:48:05,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-24 00:48:05,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:05,549 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:05,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:48:05,549 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:05,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:05,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1433168402, now seen corresponding path program 1 times [2024-11-24 00:48:05,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:05,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21409317] [2024-11-24 00:48:05,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:05,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:06,000 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:48:06,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:06,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21409317] [2024-11-24 00:48:06,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21409317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:06,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:06,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:48:06,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476329064] [2024-11-24 00:48:06,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:06,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:06,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:06,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:06,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:06,009 INFO L87 Difference]: Start difference. First operand 955 states and 1601 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:06,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:06,183 INFO L93 Difference]: Finished difference Result 2851 states and 4783 transitions. [2024-11-24 00:48:06,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:48:06,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 641 [2024-11-24 00:48:06,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:06,197 INFO L225 Difference]: With dead ends: 2851 [2024-11-24 00:48:06,197 INFO L226 Difference]: Without dead ends: 1899 [2024-11-24 00:48:06,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:06,201 INFO L435 NwaCegarLoop]: 1171 mSDtfsCounter, 586 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:06,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1760 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:06,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2024-11-24 00:48:06,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1877. [2024-11-24 00:48:06,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1484 states have (on average 1.5970350404312668) internal successors, (2370), 1484 states have internal predecessors, (2370), 384 states have call successors, (384), 8 states have call predecessors, (384), 8 states have return successors, (384), 384 states have call predecessors, (384), 384 states have call successors, (384) [2024-11-24 00:48:06,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 3138 transitions. [2024-11-24 00:48:06,368 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 3138 transitions. Word has length 641 [2024-11-24 00:48:06,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:06,370 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 3138 transitions. [2024-11-24 00:48:06,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:06,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 3138 transitions. [2024-11-24 00:48:06,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-24 00:48:06,394 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:06,394 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:06,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:48:06,395 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:06,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:06,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1236057774, now seen corresponding path program 1 times [2024-11-24 00:48:06,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:06,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150567337] [2024-11-24 00:48:06,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:06,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:06,786 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:48:06,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:06,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150567337] [2024-11-24 00:48:06,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150567337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:06,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:06,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:48:06,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658210432] [2024-11-24 00:48:06,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:06,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:06,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:06,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:06,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:06,790 INFO L87 Difference]: Start difference. First operand 1877 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:06,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:06,990 INFO L93 Difference]: Finished difference Result 3865 states and 6442 transitions. [2024-11-24 00:48:06,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:48:06,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 641 [2024-11-24 00:48:06,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:07,006 INFO L225 Difference]: With dead ends: 3865 [2024-11-24 00:48:07,006 INFO L226 Difference]: Without dead ends: 1991 [2024-11-24 00:48:07,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:07,012 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 33 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:07,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1215 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:07,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2024-11-24 00:48:07,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1929. [2024-11-24 00:48:07,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1929 states, 1536 states have (on average 1.5924479166666667) internal successors, (2446), 1536 states have internal predecessors, (2446), 384 states have call successors, (384), 8 states have call predecessors, (384), 8 states have return successors, (384), 384 states have call predecessors, (384), 384 states have call successors, (384) [2024-11-24 00:48:07,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 3214 transitions. [2024-11-24 00:48:07,227 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 3214 transitions. Word has length 641 [2024-11-24 00:48:07,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:07,230 INFO L471 AbstractCegarLoop]: Abstraction has 1929 states and 3214 transitions. [2024-11-24 00:48:07,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:07,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 3214 transitions. [2024-11-24 00:48:07,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-24 00:48:07,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:07,238 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:07,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:48:07,238 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:07,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:07,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1948532462, now seen corresponding path program 1 times [2024-11-24 00:48:07,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:07,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938770938] [2024-11-24 00:48:07,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:07,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:08,673 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:48:08,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:08,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938770938] [2024-11-24 00:48:08,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938770938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:08,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:08,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:48:08,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441454600] [2024-11-24 00:48:08,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:08,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:08,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:08,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:08,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:08,677 INFO L87 Difference]: Start difference. First operand 1929 states and 3214 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:08,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:08,977 INFO L93 Difference]: Finished difference Result 5781 states and 9636 transitions. [2024-11-24 00:48:08,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:48:08,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 641 [2024-11-24 00:48:08,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:09,011 INFO L225 Difference]: With dead ends: 5781 [2024-11-24 00:48:09,012 INFO L226 Difference]: Without dead ends: 3855 [2024-11-24 00:48:09,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:09,021 INFO L435 NwaCegarLoop]: 603 mSDtfsCounter, 435 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:09,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 1199 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:09,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2024-11-24 00:48:09,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3837. [2024-11-24 00:48:09,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3837 states, 3052 states have (on average 1.5884665792922674) internal successors, (4848), 3052 states have internal predecessors, (4848), 768 states have call successors, (768), 16 states have call predecessors, (768), 16 states have return successors, (768), 768 states have call predecessors, (768), 768 states have call successors, (768) [2024-11-24 00:48:09,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3837 states to 3837 states and 6384 transitions. [2024-11-24 00:48:09,563 INFO L78 Accepts]: Start accepts. Automaton has 3837 states and 6384 transitions. Word has length 641 [2024-11-24 00:48:09,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:09,565 INFO L471 AbstractCegarLoop]: Abstraction has 3837 states and 6384 transitions. [2024-11-24 00:48:09,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:09,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3837 states and 6384 transitions. [2024-11-24 00:48:09,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-24 00:48:09,575 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:09,575 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:09,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:48:09,577 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:09,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:09,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1909936660, now seen corresponding path program 1 times [2024-11-24 00:48:09,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:09,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632650785] [2024-11-24 00:48:09,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:09,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:10,556 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:48:10,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:10,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632650785] [2024-11-24 00:48:10,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632650785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:10,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:10,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:48:10,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854361400] [2024-11-24 00:48:10,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:10,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:10,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:10,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:10,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:10,560 INFO L87 Difference]: Start difference. First operand 3837 states and 6384 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:11,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:11,207 INFO L93 Difference]: Finished difference Result 11505 states and 19146 transitions. [2024-11-24 00:48:11,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:48:11,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 642 [2024-11-24 00:48:11,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:11,266 INFO L225 Difference]: With dead ends: 11505 [2024-11-24 00:48:11,266 INFO L226 Difference]: Without dead ends: 7671 [2024-11-24 00:48:11,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:11,283 INFO L435 NwaCegarLoop]: 616 mSDtfsCounter, 418 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:11,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1204 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:48:11,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7671 states. [2024-11-24 00:48:12,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7671 to 7669. [2024-11-24 00:48:12,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7669 states, 6100 states have (on average 1.5862295081967213) internal successors, (9676), 6100 states have internal predecessors, (9676), 1536 states have call successors, (1536), 32 states have call predecessors, (1536), 32 states have return successors, (1536), 1536 states have call predecessors, (1536), 1536 states have call successors, (1536) [2024-11-24 00:48:12,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7669 states to 7669 states and 12748 transitions. [2024-11-24 00:48:12,434 INFO L78 Accepts]: Start accepts. Automaton has 7669 states and 12748 transitions. Word has length 642 [2024-11-24 00:48:12,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:12,436 INFO L471 AbstractCegarLoop]: Abstraction has 7669 states and 12748 transitions. [2024-11-24 00:48:12,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:12,436 INFO L276 IsEmpty]: Start isEmpty. Operand 7669 states and 12748 transitions. [2024-11-24 00:48:12,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-24 00:48:12,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:12,449 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:12,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:48:12,449 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:12,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:12,450 INFO L85 PathProgramCache]: Analyzing trace with hash 2038928081, now seen corresponding path program 1 times [2024-11-24 00:48:12,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:12,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929127884] [2024-11-24 00:48:12,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:12,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:13,388 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:48:13,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:13,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929127884] [2024-11-24 00:48:13,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929127884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:13,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:13,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:48:13,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703422391] [2024-11-24 00:48:13,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:13,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:13,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:13,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:13,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:13,396 INFO L87 Difference]: Start difference. First operand 7669 states and 12748 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:14,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:14,263 INFO L93 Difference]: Finished difference Result 23001 states and 38238 transitions. [2024-11-24 00:48:14,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:48:14,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 643 [2024-11-24 00:48:14,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:14,367 INFO L225 Difference]: With dead ends: 23001 [2024-11-24 00:48:14,367 INFO L226 Difference]: Without dead ends: 15335 [2024-11-24 00:48:14,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:14,393 INFO L435 NwaCegarLoop]: 605 mSDtfsCounter, 394 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:14,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1202 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:14,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15335 states. [2024-11-24 00:48:16,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15335 to 14981. [2024-11-24 00:48:16,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14981 states, 11844 states have (on average 1.579533941236069) internal successors, (18708), 11844 states have internal predecessors, (18708), 3072 states have call successors, (3072), 64 states have call predecessors, (3072), 64 states have return successors, (3072), 3072 states have call predecessors, (3072), 3072 states have call successors, (3072) [2024-11-24 00:48:16,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14981 states to 14981 states and 24852 transitions. [2024-11-24 00:48:16,260 INFO L78 Accepts]: Start accepts. Automaton has 14981 states and 24852 transitions. Word has length 643 [2024-11-24 00:48:16,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:16,261 INFO L471 AbstractCegarLoop]: Abstraction has 14981 states and 24852 transitions. [2024-11-24 00:48:16,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:16,263 INFO L276 IsEmpty]: Start isEmpty. Operand 14981 states and 24852 transitions. [2024-11-24 00:48:16,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-24 00:48:16,278 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:16,279 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:16,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:48:16,281 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:16,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:16,283 INFO L85 PathProgramCache]: Analyzing trace with hash -887051307, now seen corresponding path program 1 times [2024-11-24 00:48:16,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:16,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069104090] [2024-11-24 00:48:16,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:16,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:17,363 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:48:17,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:17,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069104090] [2024-11-24 00:48:17,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069104090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:17,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:17,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:48:17,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43241800] [2024-11-24 00:48:17,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:17,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:17,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:17,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:17,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:17,367 INFO L87 Difference]: Start difference. First operand 14981 states and 24852 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:18,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:18,651 INFO L93 Difference]: Finished difference Result 30131 states and 49867 transitions. [2024-11-24 00:48:18,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:48:18,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 643 [2024-11-24 00:48:18,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:18,742 INFO L225 Difference]: With dead ends: 30131 [2024-11-24 00:48:18,742 INFO L226 Difference]: Without dead ends: 15153 [2024-11-24 00:48:18,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:18,793 INFO L435 NwaCegarLoop]: 656 mSDtfsCounter, 391 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:18,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 935 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:18,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15153 states. [2024-11-24 00:48:20,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15153 to 15152. [2024-11-24 00:48:20,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15152 states, 11957 states have (on average 1.571380781132391) internal successors, (18789), 11958 states have internal predecessors, (18789), 3098 states have call successors, (3098), 96 states have call predecessors, (3098), 96 states have return successors, (3098), 3097 states have call predecessors, (3098), 3098 states have call successors, (3098) [2024-11-24 00:48:20,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15152 states to 15152 states and 24985 transitions. [2024-11-24 00:48:20,658 INFO L78 Accepts]: Start accepts. Automaton has 15152 states and 24985 transitions. Word has length 643 [2024-11-24 00:48:20,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:20,659 INFO L471 AbstractCegarLoop]: Abstraction has 15152 states and 24985 transitions. [2024-11-24 00:48:20,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:20,660 INFO L276 IsEmpty]: Start isEmpty. Operand 15152 states and 24985 transitions. [2024-11-24 00:48:20,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-24 00:48:20,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:20,673 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:20,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:48:20,673 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:20,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:20,676 INFO L85 PathProgramCache]: Analyzing trace with hash -89320581, now seen corresponding path program 1 times [2024-11-24 00:48:20,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:20,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619674842] [2024-11-24 00:48:20,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:20,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:22,083 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:48:22,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:22,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619674842] [2024-11-24 00:48:22,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619674842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:22,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:22,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:48:22,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752640776] [2024-11-24 00:48:22,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:22,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:22,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:22,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:22,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:22,087 INFO L87 Difference]: Start difference. First operand 15152 states and 24985 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:24,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:24,636 INFO L93 Difference]: Finished difference Result 45140 states and 74523 transitions. [2024-11-24 00:48:24,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:48:24,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 644 [2024-11-24 00:48:24,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:24,779 INFO L225 Difference]: With dead ends: 45140 [2024-11-24 00:48:24,779 INFO L226 Difference]: Without dead ends: 30034 [2024-11-24 00:48:24,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:24,831 INFO L435 NwaCegarLoop]: 1151 mSDtfsCounter, 1227 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:24,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 1536 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:48:24,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30034 states. [2024-11-24 00:48:26,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30034 to 15872. [2024-11-24 00:48:26,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15872 states, 12637 states have (on average 1.566194508190235) internal successors, (19792), 12639 states have internal predecessors, (19792), 3136 states have call successors, (3136), 98 states have call predecessors, (3136), 98 states have return successors, (3136), 3134 states have call predecessors, (3136), 3136 states have call successors, (3136) [2024-11-24 00:48:26,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15872 states to 15872 states and 26064 transitions. [2024-11-24 00:48:26,795 INFO L78 Accepts]: Start accepts. Automaton has 15872 states and 26064 transitions. Word has length 644 [2024-11-24 00:48:26,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:26,797 INFO L471 AbstractCegarLoop]: Abstraction has 15872 states and 26064 transitions. [2024-11-24 00:48:26,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:26,797 INFO L276 IsEmpty]: Start isEmpty. Operand 15872 states and 26064 transitions. [2024-11-24 00:48:26,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-24 00:48:26,814 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:26,815 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:26,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:48:26,815 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:26,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:26,816 INFO L85 PathProgramCache]: Analyzing trace with hash 497485433, now seen corresponding path program 1 times [2024-11-24 00:48:26,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:26,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992118063] [2024-11-24 00:48:26,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:26,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:28,510 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:48:28,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:28,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992118063] [2024-11-24 00:48:28,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992118063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:28,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:28,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:48:28,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091889009] [2024-11-24 00:48:28,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:28,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:48:28,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:28,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:48:28,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:48:28,515 INFO L87 Difference]: Start difference. First operand 15872 states and 26064 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:33,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:33,081 INFO L93 Difference]: Finished difference Result 48947 states and 80590 transitions. [2024-11-24 00:48:33,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:48:33,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 644 [2024-11-24 00:48:33,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:33,265 INFO L225 Difference]: With dead ends: 48947 [2024-11-24 00:48:33,265 INFO L226 Difference]: Without dead ends: 33121 [2024-11-24 00:48:33,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:48:33,309 INFO L435 NwaCegarLoop]: 1711 mSDtfsCounter, 1601 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:33,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 2656 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:48:33,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33121 states. [2024-11-24 00:48:36,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33121 to 16168. [2024-11-24 00:48:36,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16168 states, 12960 states have (on average 1.5592592592592593) internal successors, (20208), 12961 states have internal predecessors, (20208), 3110 states have call successors, (3110), 97 states have call predecessors, (3110), 97 states have return successors, (3110), 3109 states have call predecessors, (3110), 3110 states have call successors, (3110) [2024-11-24 00:48:36,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16168 states to 16168 states and 26428 transitions. [2024-11-24 00:48:36,505 INFO L78 Accepts]: Start accepts. Automaton has 16168 states and 26428 transitions. Word has length 644 [2024-11-24 00:48:36,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:36,506 INFO L471 AbstractCegarLoop]: Abstraction has 16168 states and 26428 transitions. [2024-11-24 00:48:36,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:36,506 INFO L276 IsEmpty]: Start isEmpty. Operand 16168 states and 26428 transitions. [2024-11-24 00:48:36,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-24 00:48:36,520 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:36,521 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:36,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:48:36,521 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:36,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:36,522 INFO L85 PathProgramCache]: Analyzing trace with hash -484389410, now seen corresponding path program 1 times [2024-11-24 00:48:36,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:36,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830428466] [2024-11-24 00:48:36,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:36,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:37,251 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:48:37,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:37,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830428466] [2024-11-24 00:48:37,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830428466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:37,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:37,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:48:37,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528738460] [2024-11-24 00:48:37,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:37,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:37,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:37,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:37,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:37,255 INFO L87 Difference]: Start difference. First operand 16168 states and 26428 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:41,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:41,381 INFO L93 Difference]: Finished difference Result 51027 states and 83488 transitions. [2024-11-24 00:48:41,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:48:41,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 645 [2024-11-24 00:48:41,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:41,544 INFO L225 Difference]: With dead ends: 51027 [2024-11-24 00:48:41,544 INFO L226 Difference]: Without dead ends: 34929 [2024-11-24 00:48:41,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:48:41,596 INFO L435 NwaCegarLoop]: 1140 mSDtfsCounter, 1602 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:41,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1602 Valid, 1893 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 00:48:41,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34929 states. [2024-11-24 00:48:44,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34929 to 16232. [2024-11-24 00:48:44,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16232 states, 13024 states have (on average 1.5565110565110565) internal successors, (20272), 13025 states have internal predecessors, (20272), 3110 states have call successors, (3110), 97 states have call predecessors, (3110), 97 states have return successors, (3110), 3109 states have call predecessors, (3110), 3110 states have call successors, (3110) [2024-11-24 00:48:44,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16232 states to 16232 states and 26492 transitions. [2024-11-24 00:48:44,582 INFO L78 Accepts]: Start accepts. Automaton has 16232 states and 26492 transitions. Word has length 645 [2024-11-24 00:48:44,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:44,583 INFO L471 AbstractCegarLoop]: Abstraction has 16232 states and 26492 transitions. [2024-11-24 00:48:44,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:48:44,584 INFO L276 IsEmpty]: Start isEmpty. Operand 16232 states and 26492 transitions. [2024-11-24 00:48:44,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-24 00:48:44,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:44,601 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:44,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:48:44,602 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:44,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:44,603 INFO L85 PathProgramCache]: Analyzing trace with hash 102416604, now seen corresponding path program 1 times [2024-11-24 00:48:44,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:44,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849681366] [2024-11-24 00:48:44,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:44,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:47,968 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:48:47,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:47,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849681366] [2024-11-24 00:48:47,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849681366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:47,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:47,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:48:47,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853915537] [2024-11-24 00:48:47,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:47,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:48:47,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:47,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:48:47,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:48:47,971 INFO L87 Difference]: Start difference. First operand 16232 states and 26492 transitions. Second operand has 11 states, 11 states have (on average 15.272727272727273) internal successors, (168), 11 states have internal predecessors, (168), 2 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2024-11-24 00:49:03,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:03,333 INFO L93 Difference]: Finished difference Result 110637 states and 179285 transitions. [2024-11-24 00:49:03,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:49:03,334 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.272727272727273) internal successors, (168), 11 states have internal predecessors, (168), 2 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 645 [2024-11-24 00:49:03,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:03,673 INFO L225 Difference]: With dead ends: 110637 [2024-11-24 00:49:03,673 INFO L226 Difference]: Without dead ends: 94475 [2024-11-24 00:49:03,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:49:03,728 INFO L435 NwaCegarLoop]: 890 mSDtfsCounter, 6860 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 2851 mSolverCounterSat, 2398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6860 SdHoareTripleChecker+Valid, 4627 SdHoareTripleChecker+Invalid, 5249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2398 IncrementalHoareTripleChecker+Valid, 2851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:03,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6860 Valid, 4627 Invalid, 5249 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2398 Valid, 2851 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-24 00:49:03,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94475 states. [2024-11-24 00:49:09,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94475 to 37534. [2024-11-24 00:49:09,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37534 states, 31113 states have (on average 1.5805933211197891) internal successors, (49177), 31114 states have internal predecessors, (49177), 6194 states have call successors, (6194), 226 states have call predecessors, (6194), 226 states have return successors, (6194), 6193 states have call predecessors, (6194), 6194 states have call successors, (6194) [2024-11-24 00:49:09,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37534 states to 37534 states and 61565 transitions. [2024-11-24 00:49:09,708 INFO L78 Accepts]: Start accepts. Automaton has 37534 states and 61565 transitions. Word has length 645 [2024-11-24 00:49:09,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:09,709 INFO L471 AbstractCegarLoop]: Abstraction has 37534 states and 61565 transitions. [2024-11-24 00:49:09,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.272727272727273) internal successors, (168), 11 states have internal predecessors, (168), 2 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2024-11-24 00:49:09,710 INFO L276 IsEmpty]: Start isEmpty. Operand 37534 states and 61565 transitions. [2024-11-24 00:49:09,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-24 00:49:09,732 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:09,733 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:09,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:49:09,733 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:09,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:09,734 INFO L85 PathProgramCache]: Analyzing trace with hash -407056486, now seen corresponding path program 1 times [2024-11-24 00:49:09,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:09,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128279286] [2024-11-24 00:49:09,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:09,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:49:12,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:12,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128279286] [2024-11-24 00:49:12,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128279286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:12,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:12,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:49:12,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811834974] [2024-11-24 00:49:12,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:12,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:49:12,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:12,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:49:12,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:49:12,686 INFO L87 Difference]: Start difference. First operand 37534 states and 61565 transitions. Second operand has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:49:31,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:31,974 INFO L93 Difference]: Finished difference Result 188805 states and 310642 transitions. [2024-11-24 00:49:31,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:49:31,982 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 645 [2024-11-24 00:49:31,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:33,428 INFO L225 Difference]: With dead ends: 188805 [2024-11-24 00:49:33,429 INFO L226 Difference]: Without dead ends: 151363 [2024-11-24 00:49:33,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:49:33,596 INFO L435 NwaCegarLoop]: 2288 mSDtfsCounter, 1575 mSDsluCounter, 5923 mSDsCounter, 0 mSdLazyCounter, 1763 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 8211 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 1763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:33,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1575 Valid, 8211 Invalid, 2349 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [586 Valid, 1763 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-24 00:49:33,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151363 states. [2024-11-24 00:49:49,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151363 to 76331. [2024-11-24 00:49:49,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76331 states, 63495 states have (on average 1.5760453579021971) internal successors, (100071), 63496 states have internal predecessors, (100071), 12384 states have call successors, (12384), 451 states have call predecessors, (12384), 451 states have return successors, (12384), 12383 states have call predecessors, (12384), 12384 states have call successors, (12384) [2024-11-24 00:49:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76331 states to 76331 states and 124839 transitions. [2024-11-24 00:49:50,413 INFO L78 Accepts]: Start accepts. Automaton has 76331 states and 124839 transitions. Word has length 645 [2024-11-24 00:49:50,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:50,420 INFO L471 AbstractCegarLoop]: Abstraction has 76331 states and 124839 transitions. [2024-11-24 00:49:50,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:49:50,421 INFO L276 IsEmpty]: Start isEmpty. Operand 76331 states and 124839 transitions. [2024-11-24 00:49:50,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-24 00:49:50,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:50,514 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:50,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:49:50,517 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:50,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:50,523 INFO L85 PathProgramCache]: Analyzing trace with hash -829758312, now seen corresponding path program 1 times [2024-11-24 00:49:50,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:50,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830327232] [2024-11-24 00:49:50,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:50,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:54,293 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-24 00:49:54,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:54,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830327232] [2024-11-24 00:49:54,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830327232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:54,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:54,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:49:54,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659683379] [2024-11-24 00:49:54,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:54,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:49:54,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:54,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:49:54,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:49:54,303 INFO L87 Difference]: Start difference. First operand 76331 states and 124839 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-24 00:50:25,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:25,112 INFO L93 Difference]: Finished difference Result 260853 states and 422381 transitions. [2024-11-24 00:50:25,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:50:25,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 645 [2024-11-24 00:50:25,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:26,061 INFO L225 Difference]: With dead ends: 260853 [2024-11-24 00:50:26,062 INFO L226 Difference]: Without dead ends: 184691 [2024-11-24 00:50:26,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:50:26,251 INFO L435 NwaCegarLoop]: 1013 mSDtfsCounter, 990 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:26,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 2673 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:50:26,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184691 states.