./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-11.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-11.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB --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 47bbd7236274baed537e0bb85bffcf0820cc528026bb65d5e6c5429266d51874 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:54:24,333 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:54:24,464 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:54:24,470 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:54:24,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:54:24,512 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:54:24,513 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:54:24,513 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:54:24,514 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:54:24,515 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:54:24,516 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:54:24,516 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:54:24,516 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:54:24,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:54:24,517 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:54:24,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:54:24,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:54:24,518 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:54:24,518 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:54:24,518 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:54:24,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:54:24,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:54:24,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:54:24,519 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:54:24,519 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:54:24,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:54:24,519 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:54:24,519 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:54:24,520 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:54:24,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:54:24,521 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:54:24,521 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:54:24,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:54:24,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:54:24,522 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:54:24,522 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:54:24,522 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:54:24,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:54:24,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:54:24,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:54:24,523 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:54:24,523 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:54:24,523 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:54:24,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:54:24,523 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:54:24,523 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:54:24,523 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:54:24,524 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:54:24,524 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_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 47bbd7236274baed537e0bb85bffcf0820cc528026bb65d5e6c5429266d51874 [2024-11-28 03:54:24,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:54:24,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:54:24,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:54:24,937 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:54:24,937 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:54:24,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-11.i [2024-11-28 03:54:28,514 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/data/866b7a0a8/e561fb3301c64d7eb7c2eed20d7d1981/FLAG02a0345e2 [2024-11-28 03:54:28,970 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:54:28,971 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-11.i [2024-11-28 03:54:28,989 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/data/866b7a0a8/e561fb3301c64d7eb7c2eed20d7d1981/FLAG02a0345e2 [2024-11-28 03:54:29,023 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/data/866b7a0a8/e561fb3301c64d7eb7c2eed20d7d1981 [2024-11-28 03:54:29,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:54:29,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:54:29,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:54:29,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:54:29,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:54:29,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:29,038 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4df9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29, skipping insertion in model container [2024-11-28 03:54:29,039 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:29,084 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:54:29,279 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_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-11.i[916,929] [2024-11-28 03:54:29,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:54:29,538 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:54:29,553 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_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-11.i[916,929] [2024-11-28 03:54:29,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:54:29,779 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:54:29,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29 WrapperNode [2024-11-28 03:54:29,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:54:29,781 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:54:29,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:54:29,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:54:29,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:29,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:29,940 INFO L138 Inliner]: procedures = 26, calls = 129, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 842 [2024-11-28 03:54:29,940 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:54:29,941 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:54:29,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:54:29,942 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:54:29,954 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:29,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:29,974 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:30,034 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]. [2024-11-28 03:54:30,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:30,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:30,077 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:30,084 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:30,102 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:30,117 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:30,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:30,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:54:30,135 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:54:30,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:54:30,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:54:30,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29" (1/1) ... [2024-11-28 03:54:30,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:54:30,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:54:30,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:54:30,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:54:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:54:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:54:30,217 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:54:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:54:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:54:30,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:54:30,441 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:54:30,444 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:54:32,298 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-28 03:54:32,299 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:54:32,327 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:54:32,327 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:54:32,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:54:32 BoogieIcfgContainer [2024-11-28 03:54:32,331 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:54:32,334 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:54:32,334 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:54:32,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:54:32,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:54:29" (1/3) ... [2024-11-28 03:54:32,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28de8f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:54:32, skipping insertion in model container [2024-11-28 03:54:32,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:29" (2/3) ... [2024-11-28 03:54:32,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28de8f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:54:32, skipping insertion in model container [2024-11-28 03:54:32,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:54:32" (3/3) ... [2024-11-28 03:54:32,343 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-11.i [2024-11-28 03:54:32,362 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:54:32,367 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-11.i that has 2 procedures, 358 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:54:32,461 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:54:32,480 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;@4e268024, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:54:32,480 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:54:32,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 358 states, 239 states have (on average 1.5774058577405858) internal successors, (377), 240 states have internal predecessors, (377), 116 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-28 03:54:32,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2024-11-28 03:54:32,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:54:32,548 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:54:32,549 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:54:32,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:32,559 INFO L85 PathProgramCache]: Analyzing trace with hash -102075276, now seen corresponding path program 1 times [2024-11-28 03:54:32,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:32,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341894076] [2024-11-28 03:54:32,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:32,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 230 refuted. 0 times theorem prover too weak. 26450 trivial. 0 not checked. [2024-11-28 03:54:33,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:33,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341894076] [2024-11-28 03:54:33,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341894076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:54:33,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371367486] [2024-11-28 03:54:33,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:33,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:54:33,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:54:33,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:54:33,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:54:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:34,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 1636 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:54:34,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:54:34,559 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 26450 trivial. 0 not checked. [2024-11-28 03:54:34,559 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:54:34,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371367486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:34,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:54:34,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:54:34,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412010680] [2024-11-28 03:54:34,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:34,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:54:34,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:34,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:54:34,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:54:34,612 INFO L87 Difference]: Start difference. First operand has 358 states, 239 states have (on average 1.5774058577405858) internal successors, (377), 240 states have internal predecessors, (377), 116 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) Second operand has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 2 states have call successors, (116) [2024-11-28 03:54:34,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:54:34,697 INFO L93 Difference]: Finished difference Result 709 states and 1328 transitions. [2024-11-28 03:54:34,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:54:34,699 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 2 states have call successors, (116) Word has length 726 [2024-11-28 03:54:34,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:54:34,711 INFO L225 Difference]: With dead ends: 709 [2024-11-28 03:54:34,711 INFO L226 Difference]: Without dead ends: 354 [2024-11-28 03:54:34,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 727 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:54:34,722 INFO L435 NwaCegarLoop]: 599 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, 599 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 [2024-11-28 03:54:34,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:54:34,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-28 03:54:34,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2024-11-28 03:54:34,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 236 states have (on average 1.555084745762712) internal successors, (367), 236 states have internal predecessors, (367), 116 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-28 03:54:34,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 599 transitions. [2024-11-28 03:54:34,869 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 599 transitions. Word has length 726 [2024-11-28 03:54:34,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:54:34,872 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 599 transitions. [2024-11-28 03:54:34,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 2 states have call successors, (116) [2024-11-28 03:54:34,874 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 599 transitions. [2024-11-28 03:54:34,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2024-11-28 03:54:34,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:54:34,910 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:54:34,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:54:35,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5cadfa8-5de3-42b7-8636-7b1724cb1b2f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:54:35,112 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:54:35,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:35,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1294924080, now seen corresponding path program 1 times [2024-11-28 03:54:35,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:35,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653423920] [2024-11-28 03:54:35,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:35,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2024-11-28 03:54:36,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:36,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653423920] [2024-11-28 03:54:36,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653423920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:36,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:54:36,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:54:36,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009171418] [2024-11-28 03:54:36,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:36,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:54:36,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:36,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:54:36,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:54:36,343 INFO L87 Difference]: Start difference. First operand 354 states and 599 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:36,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:54:36,477 INFO L93 Difference]: Finished difference Result 910 states and 1546 transitions. [2024-11-28 03:54:36,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:54:36,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) Word has length 726 [2024-11-28 03:54:36,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:54:36,487 INFO L225 Difference]: With dead ends: 910 [2024-11-28 03:54:36,487 INFO L226 Difference]: Without dead ends: 559 [2024-11-28 03:54:36,489 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 [2024-11-28 03:54:36,490 INFO L435 NwaCegarLoop]: 788 mSDtfsCounter, 374 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:54:36,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 1342 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:54:36,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-11-28 03:54:36,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 556. [2024-11-28 03:54:36,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 399 states have (on average 1.5964912280701755) internal successors, (637), 400 states have internal predecessors, (637), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 153 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-28 03:54:36,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 945 transitions. [2024-11-28 03:54:36,598 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 945 transitions. Word has length 726 [2024-11-28 03:54:36,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:54:36,602 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 945 transitions. [2024-11-28 03:54:36,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:36,603 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 945 transitions. [2024-11-28 03:54:36,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2024-11-28 03:54:36,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:54:36,614 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:54:36,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:54:36,614 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:54:36,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:36,615 INFO L85 PathProgramCache]: Analyzing trace with hash -616118478, now seen corresponding path program 1 times [2024-11-28 03:54:36,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:36,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149645514] [2024-11-28 03:54:36,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:36,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:37,315 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2024-11-28 03:54:37,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:37,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149645514] [2024-11-28 03:54:37,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149645514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:37,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:54:37,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:54:37,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349818570] [2024-11-28 03:54:37,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:37,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:54:37,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:37,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:54:37,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:54:37,322 INFO L87 Difference]: Start difference. First operand 556 states and 945 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:37,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:54:37,472 INFO L93 Difference]: Finished difference Result 1439 states and 2427 transitions. [2024-11-28 03:54:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:54:37,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) Word has length 726 [2024-11-28 03:54:37,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:54:37,492 INFO L225 Difference]: With dead ends: 1439 [2024-11-28 03:54:37,495 INFO L226 Difference]: Without dead ends: 886 [2024-11-28 03:54:37,497 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 [2024-11-28 03:54:37,498 INFO L435 NwaCegarLoop]: 595 mSDtfsCounter, 326 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:54:37,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1178 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:54:37,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-11-28 03:54:37,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 883. [2024-11-28 03:54:37,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 604 states have (on average 1.544701986754967) internal successors, (933), 607 states have internal predecessors, (933), 274 states have call successors, (274), 4 states have call predecessors, (274), 4 states have return successors, (274), 271 states have call predecessors, (274), 274 states have call successors, (274) [2024-11-28 03:54:37,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1481 transitions. [2024-11-28 03:54:37,653 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1481 transitions. Word has length 726 [2024-11-28 03:54:37,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:54:37,656 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1481 transitions. [2024-11-28 03:54:37,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1481 transitions. [2024-11-28 03:54:37,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2024-11-28 03:54:37,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:54:37,667 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:54:37,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:54:37,668 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:54:37,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:37,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1833481652, now seen corresponding path program 1 times [2024-11-28 03:54:37,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:37,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075236529] [2024-11-28 03:54:37,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:37,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:38,259 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2024-11-28 03:54:38,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:38,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075236529] [2024-11-28 03:54:38,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075236529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:38,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:54:38,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:54:38,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507641650] [2024-11-28 03:54:38,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:38,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:54:38,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:38,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:54:38,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:54:38,263 INFO L87 Difference]: Start difference. First operand 883 states and 1481 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:54:38,436 INFO L93 Difference]: Finished difference Result 2415 states and 4059 transitions. [2024-11-28 03:54:38,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:54:38,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) Word has length 726 [2024-11-28 03:54:38,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:54:38,453 INFO L225 Difference]: With dead ends: 2415 [2024-11-28 03:54:38,454 INFO L226 Difference]: Without dead ends: 1535 [2024-11-28 03:54:38,458 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 [2024-11-28 03:54:38,460 INFO L435 NwaCegarLoop]: 700 mSDtfsCounter, 300 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:54:38,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1286 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:54:38,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-11-28 03:54:38,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1531. [2024-11-28 03:54:38,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1092 states have (on average 1.5695970695970696) internal successors, (1714), 1099 states have internal predecessors, (1714), 430 states have call successors, (430), 8 states have call predecessors, (430), 8 states have return successors, (430), 423 states have call predecessors, (430), 430 states have call successors, (430) [2024-11-28 03:54:38,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 2574 transitions. [2024-11-28 03:54:38,689 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 2574 transitions. Word has length 726 [2024-11-28 03:54:38,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:54:38,693 INFO L471 AbstractCegarLoop]: Abstraction has 1531 states and 2574 transitions. [2024-11-28 03:54:38,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:38,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 2574 transitions. [2024-11-28 03:54:38,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2024-11-28 03:54:38,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:54:38,703 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:54:38,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:54:38,703 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:54:38,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:38,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1771442038, now seen corresponding path program 1 times [2024-11-28 03:54:38,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:38,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082883535] [2024-11-28 03:54:38,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:38,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:39,239 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2024-11-28 03:54:39,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:39,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082883535] [2024-11-28 03:54:39,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082883535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:39,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:54:39,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:54:39,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283872932] [2024-11-28 03:54:39,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:39,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:54:39,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:39,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:54:39,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:54:39,246 INFO L87 Difference]: Start difference. First operand 1531 states and 2574 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:39,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:54:39,448 INFO L93 Difference]: Finished difference Result 3081 states and 5162 transitions. [2024-11-28 03:54:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:54:39,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) Word has length 726 [2024-11-28 03:54:39,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:54:39,466 INFO L225 Difference]: With dead ends: 3081 [2024-11-28 03:54:39,466 INFO L226 Difference]: Without dead ends: 1553 [2024-11-28 03:54:39,472 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 [2024-11-28 03:54:39,473 INFO L435 NwaCegarLoop]: 696 mSDtfsCounter, 300 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:54:39,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1279 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:54:39,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2024-11-28 03:54:39,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1167. [2024-11-28 03:54:39,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 880 states have (on average 1.6181818181818182) internal successors, (1424), 883 states have internal predecessors, (1424), 278 states have call successors, (278), 8 states have call predecessors, (278), 8 states have return successors, (278), 275 states have call predecessors, (278), 278 states have call successors, (278) [2024-11-28 03:54:39,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1980 transitions. [2024-11-28 03:54:39,607 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1980 transitions. Word has length 726 [2024-11-28 03:54:39,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:54:39,609 INFO L471 AbstractCegarLoop]: Abstraction has 1167 states and 1980 transitions. [2024-11-28 03:54:39,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:39,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1980 transitions. [2024-11-28 03:54:39,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2024-11-28 03:54:39,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:54:39,618 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:54:39,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:54:39,618 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:54:39,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:39,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1911990648, now seen corresponding path program 1 times [2024-11-28 03:54:39,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:39,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736399031] [2024-11-28 03:54:39,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:39,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:40,640 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2024-11-28 03:54:40,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:40,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736399031] [2024-11-28 03:54:40,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736399031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:40,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:54:40,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:54:40,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847961348] [2024-11-28 03:54:40,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:40,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:54:40,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:40,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:54:40,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:54:40,644 INFO L87 Difference]: Start difference. First operand 1167 states and 1980 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:41,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:54:41,581 INFO L93 Difference]: Finished difference Result 3197 states and 5440 transitions. [2024-11-28 03:54:41,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:54:41,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) Word has length 726 [2024-11-28 03:54:41,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:54:41,595 INFO L225 Difference]: With dead ends: 3197 [2024-11-28 03:54:41,596 INFO L226 Difference]: Without dead ends: 2033 [2024-11-28 03:54:41,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:54:41,600 INFO L435 NwaCegarLoop]: 602 mSDtfsCounter, 981 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:54:41,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [981 Valid, 1821 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:54:41,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2024-11-28 03:54:41,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 1995. [2024-11-28 03:54:41,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1632 states have (on average 1.6629901960784315) internal successors, (2714), 1639 states have internal predecessors, (2714), 346 states have call successors, (346), 16 states have call predecessors, (346), 16 states have return successors, (346), 339 states have call predecessors, (346), 346 states have call successors, (346) [2024-11-28 03:54:41,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 3406 transitions. [2024-11-28 03:54:41,766 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 3406 transitions. Word has length 726 [2024-11-28 03:54:41,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:54:41,768 INFO L471 AbstractCegarLoop]: Abstraction has 1995 states and 3406 transitions. [2024-11-28 03:54:41,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:41,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 3406 transitions. [2024-11-28 03:54:41,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2024-11-28 03:54:41,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:54:41,779 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:54:41,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:54:41,779 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:54:41,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:41,780 INFO L85 PathProgramCache]: Analyzing trace with hash 535169611, now seen corresponding path program 1 times [2024-11-28 03:54:41,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:41,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794470614] [2024-11-28 03:54:41,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:41,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:42,702 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2024-11-28 03:54:42,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:42,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794470614] [2024-11-28 03:54:42,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794470614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:42,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:54:42,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:54:42,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874088321] [2024-11-28 03:54:42,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:42,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:54:42,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:42,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:54:42,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:54:42,705 INFO L87 Difference]: Start difference. First operand 1995 states and 3406 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:42,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:54:42,983 INFO L93 Difference]: Finished difference Result 5979 states and 10212 transitions. [2024-11-28 03:54:42,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:54:42,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) Word has length 727 [2024-11-28 03:54:42,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:54:43,013 INFO L225 Difference]: With dead ends: 5979 [2024-11-28 03:54:43,014 INFO L226 Difference]: Without dead ends: 3987 [2024-11-28 03:54:43,020 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 [2024-11-28 03:54:43,021 INFO L435 NwaCegarLoop]: 1116 mSDtfsCounter, 583 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:54:43,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 1710 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:54:43,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3987 states. [2024-11-28 03:54:43,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3987 to 2243. [2024-11-28 03:54:43,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2243 states, 1880 states have (on average 1.6734042553191488) internal successors, (3146), 1887 states have internal predecessors, (3146), 346 states have call successors, (346), 16 states have call predecessors, (346), 16 states have return successors, (346), 339 states have call predecessors, (346), 346 states have call successors, (346) [2024-11-28 03:54:43,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 3838 transitions. [2024-11-28 03:54:43,334 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 3838 transitions. Word has length 727 [2024-11-28 03:54:43,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:54:43,336 INFO L471 AbstractCegarLoop]: Abstraction has 2243 states and 3838 transitions. [2024-11-28 03:54:43,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:43,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 3838 transitions. [2024-11-28 03:54:43,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2024-11-28 03:54:43,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:54:43,348 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:54:43,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:54:43,348 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:54:43,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:43,349 INFO L85 PathProgramCache]: Analyzing trace with hash 401156105, now seen corresponding path program 1 times [2024-11-28 03:54:43,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:43,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821645667] [2024-11-28 03:54:43,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:43,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:44,255 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2024-11-28 03:54:44,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:44,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821645667] [2024-11-28 03:54:44,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821645667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:44,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:54:44,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:54:44,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294577542] [2024-11-28 03:54:44,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:44,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:54:44,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:44,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:54:44,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:54:44,259 INFO L87 Difference]: Start difference. First operand 2243 states and 3838 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:44,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:54:44,638 INFO L93 Difference]: Finished difference Result 6723 states and 11508 transitions. [2024-11-28 03:54:44,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:54:44,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) Word has length 727 [2024-11-28 03:54:44,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:54:44,670 INFO L225 Difference]: With dead ends: 6723 [2024-11-28 03:54:44,670 INFO L226 Difference]: Without dead ends: 4483 [2024-11-28 03:54:44,678 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 [2024-11-28 03:54:44,679 INFO L435 NwaCegarLoop]: 598 mSDtfsCounter, 352 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:54:44,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 1191 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:54:44,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4483 states. [2024-11-28 03:54:45,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4483 to 4481. [2024-11-28 03:54:45,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4481 states, 3756 states have (on average 1.6719914802981897) internal successors, (6280), 3770 states have internal predecessors, (6280), 692 states have call successors, (692), 32 states have call predecessors, (692), 32 states have return successors, (692), 678 states have call predecessors, (692), 692 states have call successors, (692) [2024-11-28 03:54:45,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4481 states to 4481 states and 7664 transitions. [2024-11-28 03:54:45,088 INFO L78 Accepts]: Start accepts. Automaton has 4481 states and 7664 transitions. Word has length 727 [2024-11-28 03:54:45,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:54:45,089 INFO L471 AbstractCegarLoop]: Abstraction has 4481 states and 7664 transitions. [2024-11-28 03:54:45,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:45,090 INFO L276 IsEmpty]: Start isEmpty. Operand 4481 states and 7664 transitions. [2024-11-28 03:54:45,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2024-11-28 03:54:45,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:54:45,100 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:54:45,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:54:45,101 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:54:45,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:45,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1899666485, now seen corresponding path program 1 times [2024-11-28 03:54:45,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:45,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061900907] [2024-11-28 03:54:45,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:45,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:46,639 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2024-11-28 03:54:46,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:46,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061900907] [2024-11-28 03:54:46,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061900907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:46,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:54:46,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:54:46,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155603123] [2024-11-28 03:54:46,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:46,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:54:46,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:46,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:54:46,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:54:46,646 INFO L87 Difference]: Start difference. First operand 4481 states and 7664 transitions. Second operand has 10 states, 10 states have (on average 15.0) internal successors, (150), 10 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:53,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:54:53,868 INFO L93 Difference]: Finished difference Result 23897 states and 40218 transitions. [2024-11-28 03:54:53,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:54:53,870 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.0) internal successors, (150), 10 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) Word has length 727 [2024-11-28 03:54:53,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:54:53,975 INFO L225 Difference]: With dead ends: 23897 [2024-11-28 03:54:53,975 INFO L226 Difference]: Without dead ends: 19419 [2024-11-28 03:54:53,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=244, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:54:53,995 INFO L435 NwaCegarLoop]: 1215 mSDtfsCounter, 2943 mSDsluCounter, 4837 mSDsCounter, 0 mSdLazyCounter, 2808 mSolverCounterSat, 790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2943 SdHoareTripleChecker+Valid, 6052 SdHoareTripleChecker+Invalid, 3598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 790 IncrementalHoareTripleChecker+Valid, 2808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:54:53,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2943 Valid, 6052 Invalid, 3598 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [790 Valid, 2808 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-28 03:54:54,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19419 states. [2024-11-28 03:54:55,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19419 to 15329. [2024-11-28 03:54:55,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15329 states, 12528 states have (on average 1.6436781609195403) internal successors, (20592), 12586 states have internal predecessors, (20592), 2672 states have call successors, (2672), 128 states have call predecessors, (2672), 128 states have return successors, (2672), 2614 states have call predecessors, (2672), 2672 states have call successors, (2672) [2024-11-28 03:54:55,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15329 states to 15329 states and 25936 transitions. [2024-11-28 03:54:55,621 INFO L78 Accepts]: Start accepts. Automaton has 15329 states and 25936 transitions. Word has length 727 [2024-11-28 03:54:55,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:54:55,622 INFO L471 AbstractCegarLoop]: Abstraction has 15329 states and 25936 transitions. [2024-11-28 03:54:55,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.0) internal successors, (150), 10 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:55,624 INFO L276 IsEmpty]: Start isEmpty. Operand 15329 states and 25936 transitions. [2024-11-28 03:54:55,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2024-11-28 03:54:55,640 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:54:55,640 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:54:55,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:54:55,641 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:54:55,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:55,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1501814473, now seen corresponding path program 1 times [2024-11-28 03:54:55,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:55,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099707905] [2024-11-28 03:54:55,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:55,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:57,572 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2024-11-28 03:54:57,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:57,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099707905] [2024-11-28 03:54:57,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099707905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:57,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:54:57,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:54:57,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849868550] [2024-11-28 03:54:57,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:57,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:54:57,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:57,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:54:57,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:54:57,576 INFO L87 Difference]: Start difference. First operand 15329 states and 25936 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:54:58,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:54:58,762 INFO L93 Difference]: Finished difference Result 31297 states and 52766 transitions. [2024-11-28 03:54:58,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:54:58,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) Word has length 727 [2024-11-28 03:54:58,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:54:58,843 INFO L225 Difference]: With dead ends: 31297 [2024-11-28 03:54:58,844 INFO L226 Difference]: Without dead ends: 15971 [2024-11-28 03:54:58,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:54:58,890 INFO L435 NwaCegarLoop]: 594 mSDtfsCounter, 42 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:54:58,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 1191 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:54:58,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15971 states. [2024-11-28 03:55:00,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15971 to 15585. [2024-11-28 03:55:00,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15585 states, 12784 states have (on average 1.6408010012515644) internal successors, (20976), 12842 states have internal predecessors, (20976), 2672 states have call successors, (2672), 128 states have call predecessors, (2672), 128 states have return successors, (2672), 2614 states have call predecessors, (2672), 2672 states have call successors, (2672) [2024-11-28 03:55:00,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15585 states to 15585 states and 26320 transitions. [2024-11-28 03:55:00,225 INFO L78 Accepts]: Start accepts. Automaton has 15585 states and 26320 transitions. Word has length 727 [2024-11-28 03:55:00,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:00,227 INFO L471 AbstractCegarLoop]: Abstraction has 15585 states and 26320 transitions. [2024-11-28 03:55:00,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:55:00,227 INFO L276 IsEmpty]: Start isEmpty. Operand 15585 states and 26320 transitions. [2024-11-28 03:55:00,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2024-11-28 03:55:00,244 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:00,244 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:00,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:55:00,244 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:00,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:00,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1503661515, now seen corresponding path program 1 times [2024-11-28 03:55:00,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:00,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072910096] [2024-11-28 03:55:00,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:00,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:18,486 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2024-11-28 03:55:18,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:18,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072910096] [2024-11-28 03:55:18,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072910096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:18,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:18,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:55:18,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523694332] [2024-11-28 03:55:18,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:18,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:55:18,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:18,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:55:18,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:55:18,490 INFO L87 Difference]: Start difference. First operand 15585 states and 26320 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 2 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2024-11-28 03:55:23,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:23,389 INFO L93 Difference]: Finished difference Result 48096 states and 80986 transitions. [2024-11-28 03:55:23,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:55:23,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 2 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) Word has length 727 [2024-11-28 03:55:23,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:23,547 INFO L225 Difference]: With dead ends: 48096 [2024-11-28 03:55:23,547 INFO L226 Difference]: Without dead ends: 32514 [2024-11-28 03:55:23,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:55:23,594 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 2348 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2348 SdHoareTripleChecker+Valid, 2669 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:23,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2348 Valid, 2669 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 03:55:23,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32514 states. [2024-11-28 03:55:26,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32514 to 32473. [2024-11-28 03:55:26,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32473 states, 26622 states have (on average 1.6342123056119) internal successors, (43506), 26739 states have internal predecessors, (43506), 5524 states have call successors, (5524), 326 states have call predecessors, (5524), 326 states have return successors, (5524), 5407 states have call predecessors, (5524), 5524 states have call successors, (5524) [2024-11-28 03:55:26,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32473 states to 32473 states and 54554 transitions. [2024-11-28 03:55:26,706 INFO L78 Accepts]: Start accepts. Automaton has 32473 states and 54554 transitions. Word has length 727 [2024-11-28 03:55:26,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:26,708 INFO L471 AbstractCegarLoop]: Abstraction has 32473 states and 54554 transitions. [2024-11-28 03:55:26,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 2 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2024-11-28 03:55:26,709 INFO L276 IsEmpty]: Start isEmpty. Operand 32473 states and 54554 transitions. [2024-11-28 03:55:26,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2024-11-28 03:55:26,730 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:26,730 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:26,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:55:26,731 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:26,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:26,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1299059131, now seen corresponding path program 1 times [2024-11-28 03:55:26,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:26,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377610245] [2024-11-28 03:55:26,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:26,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2024-11-28 03:55:28,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:28,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377610245] [2024-11-28 03:55:28,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377610245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:28,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:28,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:55:28,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662652935] [2024-11-28 03:55:28,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:28,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:55:28,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:28,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:55:28,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:55:28,092 INFO L87 Difference]: Start difference. First operand 32473 states and 54554 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:55:30,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:30,730 INFO L93 Difference]: Finished difference Result 72941 states and 122664 transitions. [2024-11-28 03:55:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:55:30,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) Word has length 727 [2024-11-28 03:55:30,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:30,923 INFO L225 Difference]: With dead ends: 72941 [2024-11-28 03:55:30,924 INFO L226 Difference]: Without dead ends: 40677 [2024-11-28 03:55:30,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:55:30,994 INFO L435 NwaCegarLoop]: 595 mSDtfsCounter, 574 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:30,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 2134 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:55:31,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40677 states. [2024-11-28 03:55:34,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40677 to 38755. [2024-11-28 03:55:34,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38755 states, 32904 states have (on average 1.6504984196450279) internal successors, (54308), 33020 states have internal predecessors, (54308), 5524 states have call successors, (5524), 326 states have call predecessors, (5524), 326 states have return successors, (5524), 5408 states have call predecessors, (5524), 5524 states have call successors, (5524) [2024-11-28 03:55:34,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38755 states to 38755 states and 65356 transitions. [2024-11-28 03:55:34,896 INFO L78 Accepts]: Start accepts. Automaton has 38755 states and 65356 transitions. Word has length 727 [2024-11-28 03:55:34,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:34,899 INFO L471 AbstractCegarLoop]: Abstraction has 38755 states and 65356 transitions. [2024-11-28 03:55:34,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:55:34,901 INFO L276 IsEmpty]: Start isEmpty. Operand 38755 states and 65356 transitions. [2024-11-28 03:55:34,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2024-11-28 03:55:34,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:34,937 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:34,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:55:34,937 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:34,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:34,939 INFO L85 PathProgramCache]: Analyzing trace with hash -205478634, now seen corresponding path program 1 times [2024-11-28 03:55:34,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:34,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418020831] [2024-11-28 03:55:34,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:34,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:36,391 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2024-11-28 03:55:36,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:36,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418020831] [2024-11-28 03:55:36,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418020831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:36,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:36,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:55:36,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679218783] [2024-11-28 03:55:36,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:36,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:55:36,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:36,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:55:36,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:55:36,395 INFO L87 Difference]: Start difference. First operand 38755 states and 65356 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:55:42,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:42,553 INFO L93 Difference]: Finished difference Result 114143 states and 185753 transitions. [2024-11-28 03:55:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:55:42,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) Word has length 728 [2024-11-28 03:55:42,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:42,915 INFO L225 Difference]: With dead ends: 114143 [2024-11-28 03:55:42,916 INFO L226 Difference]: Without dead ends: 80823 [2024-11-28 03:55:42,996 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 [2024-11-28 03:55:42,997 INFO L435 NwaCegarLoop]: 817 mSDtfsCounter, 666 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:42,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 1516 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:55:43,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80823 states. [2024-11-28 03:55:49,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80823 to 66639. [2024-11-28 03:55:49,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66639 states, 55444 states have (on average 1.5742009955991632) internal successors, (87280), 55688 states have internal predecessors, (87280), 10548 states have call successors, (10548), 646 states have call predecessors, (10548), 646 states have return successors, (10548), 10304 states have call predecessors, (10548), 10548 states have call successors, (10548) [2024-11-28 03:55:50,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66639 states to 66639 states and 108376 transitions. [2024-11-28 03:55:50,097 INFO L78 Accepts]: Start accepts. Automaton has 66639 states and 108376 transitions. Word has length 728 [2024-11-28 03:55:50,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:50,098 INFO L471 AbstractCegarLoop]: Abstraction has 66639 states and 108376 transitions. [2024-11-28 03:55:50,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:55:50,099 INFO L276 IsEmpty]: Start isEmpty. Operand 66639 states and 108376 transitions. [2024-11-28 03:55:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2024-11-28 03:55:50,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:50,130 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:50,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:55:50,131 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:50,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:50,132 INFO L85 PathProgramCache]: Analyzing trace with hash 217223192, now seen corresponding path program 1 times [2024-11-28 03:55:50,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:50,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009179634] [2024-11-28 03:55:50,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:50,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:53,379 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2024-11-28 03:55:53,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:53,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009179634] [2024-11-28 03:55:53,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009179634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:53,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:53,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:55:53,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035098889] [2024-11-28 03:55:53,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:53,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:55:53,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:53,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:55:53,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:55:53,385 INFO L87 Difference]: Start difference. First operand 66639 states and 108376 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:56:01,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:01,888 INFO L93 Difference]: Finished difference Result 198871 states and 323390 transitions. [2024-11-28 03:56:01,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:01,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) Word has length 728 [2024-11-28 03:56:01,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:02,415 INFO L225 Difference]: With dead ends: 198871 [2024-11-28 03:56:02,415 INFO L226 Difference]: Without dead ends: 132891 [2024-11-28 03:56:02,534 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 [2024-11-28 03:56:02,535 INFO L435 NwaCegarLoop]: 785 mSDtfsCounter, 391 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:02,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1376 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:56:02,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132891 states. [2024-11-28 03:56:10,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132891 to 132889. [2024-11-28 03:56:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132889 states, 110622 states have (on average 1.573502558261467) internal successors, (174064), 111110 states have internal predecessors, (174064), 20980 states have call successors, (20980), 1286 states have call predecessors, (20980), 1286 states have return successors, (20980), 20492 states have call predecessors, (20980), 20980 states have call successors, (20980) [2024-11-28 03:56:10,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132889 states to 132889 states and 216024 transitions. [2024-11-28 03:56:10,972 INFO L78 Accepts]: Start accepts. Automaton has 132889 states and 216024 transitions. Word has length 728 [2024-11-28 03:56:10,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:10,973 INFO L471 AbstractCegarLoop]: Abstraction has 132889 states and 216024 transitions. [2024-11-28 03:56:10,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 1 states have call predecessors, (116), 1 states have call successors, (116) [2024-11-28 03:56:10,974 INFO L276 IsEmpty]: Start isEmpty. Operand 132889 states and 216024 transitions. [2024-11-28 03:56:11,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2024-11-28 03:56:11,025 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:11,025 INFO L218 NwaCegarLoop]: trace histogram [116, 116, 116, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:11,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:56:11,026 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:11,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:11,027 INFO L85 PathProgramCache]: Analyzing trace with hash -167917428, now seen corresponding path program 1 times [2024-11-28 03:56:11,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:11,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427301776] [2024-11-28 03:56:11,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:11,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:15,354 INFO L134 CoverageAnalysis]: Checked inductivity of 26680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2024-11-28 03:56:15,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:15,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427301776] [2024-11-28 03:56:15,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427301776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:15,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:15,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:56:15,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005435909] [2024-11-28 03:56:15,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:15,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:56:15,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:15,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:56:15,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:56:15,360 INFO L87 Difference]: Start difference. First operand 132889 states and 216024 transitions. Second operand has 15 states, 15 states have (on average 10.133333333333333) internal successors, (152), 15 states have internal predecessors, (152), 3 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116)