./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-57.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85317af79e2001c8e1b318bf68e7fdcd0f9e26e9789b5022a63d412f2c352aaf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:26:55,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:26:56,039 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:26:56,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:26:56,048 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:26:56,086 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:26:56,087 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:26:56,087 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:26:56,088 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:26:56,088 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:26:56,089 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:26:56,089 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:26:56,090 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:26:56,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:26:56,090 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:26:56,090 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:26:56,090 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:26:56,090 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:26:56,090 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:26:56,090 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:26:56,090 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:26:56,091 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:26:56,091 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:26:56,091 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:26:56,091 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:26:56,091 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:26:56,091 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:26:56,091 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:26:56,091 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:26:56,091 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:26:56,092 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:26:56,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:26:56,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:26:56,092 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:26:56,092 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:26:56,092 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:26:56,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:26:56,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:26:56,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:26:56,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:26:56,093 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:26:56,093 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:26:56,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:26:56,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:26:56,094 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:26:56,094 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:26:56,094 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:26:56,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:26:56,094 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_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85317af79e2001c8e1b318bf68e7fdcd0f9e26e9789b5022a63d412f2c352aaf [2024-11-24 00:26:56,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:26:56,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:26:56,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:26:56,404 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:26:56,405 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:26:56,407 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-57.i [2024-11-24 00:26:59,678 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/data/7362ba8d1/4fdf4de029d24ba0866e05cbd99ccba7/FLAG2f4b31575 [2024-11-24 00:27:00,069 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:27:00,070 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-57.i [2024-11-24 00:27:00,098 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/data/7362ba8d1/4fdf4de029d24ba0866e05cbd99ccba7/FLAG2f4b31575 [2024-11-24 00:27:00,124 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/data/7362ba8d1/4fdf4de029d24ba0866e05cbd99ccba7 [2024-11-24 00:27:00,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:27:00,129 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:27:00,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:27:00,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:27:00,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:27:00,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:00,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@315debf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00, skipping insertion in model container [2024-11-24 00:27:00,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:00,196 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:27:00,388 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_d35154b2-3615-436d-b37f-d372596a5869/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-57.i[916,929] [2024-11-24 00:27:00,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:27:00,725 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:27:00,740 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_d35154b2-3615-436d-b37f-d372596a5869/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-57.i[916,929] [2024-11-24 00:27:00,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:27:00,933 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:27:00,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00 WrapperNode [2024-11-24 00:27:00,935 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:27:00,936 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:27:00,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:27:00,937 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:27:00,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:00,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:01,130 INFO L138 Inliner]: procedures = 26, calls = 126, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 890 [2024-11-24 00:27:01,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:27:01,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:27:01,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:27:01,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:27:01,143 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:01,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:01,158 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:01,239 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:27:01,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:01,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:01,284 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:01,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:01,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:01,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:01,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:01,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:27:01,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:27:01,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:27:01,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:27:01,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00" (1/1) ... [2024-11-24 00:27:01,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:27:01,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:27:01,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:27:01,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:27:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:27:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:27:01,435 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:27:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:27:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:27:01,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:27:01,654 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:27:01,658 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:27:03,664 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-24 00:27:03,664 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:27:03,697 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:27:03,698 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:27:03,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:27:03 BoogieIcfgContainer [2024-11-24 00:27:03,698 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:27:03,701 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:27:03,701 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:27:03,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:27:03,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:27:00" (1/3) ... [2024-11-24 00:27:03,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61aa9242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:27:03, skipping insertion in model container [2024-11-24 00:27:03,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:00" (2/3) ... [2024-11-24 00:27:03,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61aa9242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:27:03, skipping insertion in model container [2024-11-24 00:27:03,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:27:03" (3/3) ... [2024-11-24 00:27:03,710 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-57.i [2024-11-24 00:27:03,727 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:27:03,732 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-57.i that has 2 procedures, 368 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:27:03,833 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:27:03,851 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;@66db0f8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:27:03,851 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:27:03,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 368 states, 252 states have (on average 1.5753968253968254) internal successors, (397), 253 states have internal predecessors, (397), 113 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-24 00:27:03,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2024-11-24 00:27:03,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:03,904 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:03,905 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:03,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:03,911 INFO L85 PathProgramCache]: Analyzing trace with hash 215651723, now seen corresponding path program 1 times [2024-11-24 00:27:03,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:03,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867307714] [2024-11-24 00:27:03,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:03,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:05,031 INFO L134 CoverageAnalysis]: Checked inductivity of 25312 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 25088 trivial. 0 not checked. [2024-11-24 00:27:05,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:05,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867307714] [2024-11-24 00:27:05,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867307714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:27:05,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914124874] [2024-11-24 00:27:05,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:05,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:27:05,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:27:05,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:27:05,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:27:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:05,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 1658 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:27:05,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:27:05,794 INFO L134 CoverageAnalysis]: Checked inductivity of 25312 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 25088 trivial. 0 not checked. [2024-11-24 00:27:05,794 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:27:05,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914124874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:05,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:27:05,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:27:05,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102988991] [2024-11-24 00:27:05,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:05,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:27:05,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:05,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:27:05,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:27:05,835 INFO L87 Difference]: Start difference. First operand has 368 states, 252 states have (on average 1.5753968253968254) internal successors, (397), 253 states have internal predecessors, (397), 113 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 2 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 2 states have call successors, (113), 2 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 2 states have call successors, (113) [2024-11-24 00:27:05,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:05,952 INFO L93 Difference]: Finished difference Result 729 states and 1353 transitions. [2024-11-24 00:27:05,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:27:05,955 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 2 states have call successors, (113), 2 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 2 states have call successors, (113) Word has length 733 [2024-11-24 00:27:05,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:05,968 INFO L225 Difference]: With dead ends: 729 [2024-11-24 00:27:05,968 INFO L226 Difference]: Without dead ends: 364 [2024-11-24 00:27:05,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 734 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:27:05,981 INFO L435 NwaCegarLoop]: 616 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, 616 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:05,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:27:06,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-24 00:27:06,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2024-11-24 00:27:06,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 249 states have (on average 1.5662650602409638) internal successors, (390), 249 states have internal predecessors, (390), 113 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-24 00:27:06,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 616 transitions. [2024-11-24 00:27:06,112 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 616 transitions. Word has length 733 [2024-11-24 00:27:06,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:06,113 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 616 transitions. [2024-11-24 00:27:06,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 2 states have call successors, (113), 2 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 2 states have call successors, (113) [2024-11-24 00:27:06,115 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 616 transitions. [2024-11-24 00:27:06,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2024-11-24 00:27:06,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:06,137 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:06,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:27:06,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d35154b2-3615-436d-b37f-d372596a5869/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:27:06,338 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:06,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:06,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1447805999, now seen corresponding path program 1 times [2024-11-24 00:27:06,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:06,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675656282] [2024-11-24 00:27:06,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:06,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:07,629 INFO L134 CoverageAnalysis]: Checked inductivity of 25312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2024-11-24 00:27:07,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:07,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675656282] [2024-11-24 00:27:07,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675656282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:07,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:07,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:27:07,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143695953] [2024-11-24 00:27:07,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:07,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:27:07,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:07,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:27:07,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:27:07,639 INFO L87 Difference]: Start difference. First operand 364 states and 616 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:27:07,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:07,821 INFO L93 Difference]: Finished difference Result 960 states and 1634 transitions. [2024-11-24 00:27:07,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:27:07,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) Word has length 733 [2024-11-24 00:27:07,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:07,831 INFO L225 Difference]: With dead ends: 960 [2024-11-24 00:27:07,832 INFO L226 Difference]: Without dead ends: 599 [2024-11-24 00:27:07,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:27:07,835 INFO L435 NwaCegarLoop]: 1004 mSDtfsCounter, 403 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:07,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1602 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:27:07,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-11-24 00:27:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 596. [2024-11-24 00:27:07,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 442 states have (on average 1.6176470588235294) internal successors, (715), 443 states have internal predecessors, (715), 151 states have call successors, (151), 2 states have call predecessors, (151), 2 states have return successors, (151), 150 states have call predecessors, (151), 151 states have call successors, (151) [2024-11-24 00:27:07,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 1017 transitions. [2024-11-24 00:27:07,978 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 1017 transitions. Word has length 733 [2024-11-24 00:27:07,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:07,984 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 1017 transitions. [2024-11-24 00:27:07,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:27:07,985 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 1017 transitions. [2024-11-24 00:27:08,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2024-11-24 00:27:08,021 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:08,021 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:08,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:27:08,022 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:08,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:08,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1790430095, now seen corresponding path program 1 times [2024-11-24 00:27:08,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:08,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356214816] [2024-11-24 00:27:08,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:08,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:08,789 INFO L134 CoverageAnalysis]: Checked inductivity of 25312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2024-11-24 00:27:08,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:08,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356214816] [2024-11-24 00:27:08,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356214816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:08,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:08,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:27:08,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974897286] [2024-11-24 00:27:08,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:08,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:27:08,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:08,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:27:08,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:27:08,796 INFO L87 Difference]: Start difference. First operand 596 states and 1017 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:27:08,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:08,958 INFO L93 Difference]: Finished difference Result 1781 states and 3043 transitions. [2024-11-24 00:27:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:27:08,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) Word has length 733 [2024-11-24 00:27:08,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:08,976 INFO L225 Difference]: With dead ends: 1781 [2024-11-24 00:27:08,979 INFO L226 Difference]: Without dead ends: 1188 [2024-11-24 00:27:08,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:27:08,986 INFO L435 NwaCegarLoop]: 963 mSDtfsCounter, 594 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:08,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 1568 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:27:08,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2024-11-24 00:27:09,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1186. [2024-11-24 00:27:09,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 879 states have (on average 1.6154721274175199) internal successors, (1420), 881 states have internal predecessors, (1420), 302 states have call successors, (302), 4 states have call predecessors, (302), 4 states have return successors, (302), 300 states have call predecessors, (302), 302 states have call successors, (302) [2024-11-24 00:27:09,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 2024 transitions. [2024-11-24 00:27:09,225 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 2024 transitions. Word has length 733 [2024-11-24 00:27:09,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:09,230 INFO L471 AbstractCegarLoop]: Abstraction has 1186 states and 2024 transitions. [2024-11-24 00:27:09,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:27:09,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 2024 transitions. [2024-11-24 00:27:09,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2024-11-24 00:27:09,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:09,240 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:09,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:27:09,241 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:09,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:09,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1288383475, now seen corresponding path program 1 times [2024-11-24 00:27:09,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:09,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65325385] [2024-11-24 00:27:09,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:09,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:09,816 INFO L134 CoverageAnalysis]: Checked inductivity of 25312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2024-11-24 00:27:09,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:09,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65325385] [2024-11-24 00:27:09,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65325385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:09,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:09,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:27:09,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055191687] [2024-11-24 00:27:09,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:09,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:27:09,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:09,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:27:09,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:27:09,825 INFO L87 Difference]: Start difference. First operand 1186 states and 2024 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:27:10,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:10,011 INFO L93 Difference]: Finished difference Result 3075 states and 5192 transitions. [2024-11-24 00:27:10,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:27:10,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) Word has length 733 [2024-11-24 00:27:10,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:10,032 INFO L225 Difference]: With dead ends: 3075 [2024-11-24 00:27:10,033 INFO L226 Difference]: Without dead ends: 1892 [2024-11-24 00:27:10,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:27:10,041 INFO L435 NwaCegarLoop]: 871 mSDtfsCounter, 353 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:10,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 1480 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:27:10,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2024-11-24 00:27:10,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1888. [2024-11-24 00:27:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1888 states, 1307 states have (on average 1.5455241009946443) internal successors, (2020), 1313 states have internal predecessors, (2020), 572 states have call successors, (572), 8 states have call predecessors, (572), 8 states have return successors, (572), 566 states have call predecessors, (572), 572 states have call successors, (572) [2024-11-24 00:27:10,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1888 states to 1888 states and 3164 transitions. [2024-11-24 00:27:10,362 INFO L78 Accepts]: Start accepts. Automaton has 1888 states and 3164 transitions. Word has length 733 [2024-11-24 00:27:10,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:10,363 INFO L471 AbstractCegarLoop]: Abstraction has 1888 states and 3164 transitions. [2024-11-24 00:27:10,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:27:10,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1888 states and 3164 transitions. [2024-11-24 00:27:10,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2024-11-24 00:27:10,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:10,372 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:10,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:27:10,373 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:10,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:10,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1360770033, now seen corresponding path program 1 times [2024-11-24 00:27:10,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:10,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617477278] [2024-11-24 00:27:10,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:10,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:11,541 INFO L134 CoverageAnalysis]: Checked inductivity of 25312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2024-11-24 00:27:11,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:11,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617477278] [2024-11-24 00:27:11,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617477278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:11,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:11,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:27:11,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149949998] [2024-11-24 00:27:11,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:11,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:27:11,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:11,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:27:11,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:27:11,546 INFO L87 Difference]: Start difference. First operand 1888 states and 3164 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:27:12,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:12,018 INFO L93 Difference]: Finished difference Result 5658 states and 9486 transitions. [2024-11-24 00:27:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:27:12,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) Word has length 733 [2024-11-24 00:27:12,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:12,055 INFO L225 Difference]: With dead ends: 5658 [2024-11-24 00:27:12,055 INFO L226 Difference]: Without dead ends: 3773 [2024-11-24 00:27:12,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:27:12,065 INFO L435 NwaCegarLoop]: 604 mSDtfsCounter, 393 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:12,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 1202 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:27:12,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3773 states. [2024-11-24 00:27:12,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3773 to 3767. [2024-11-24 00:27:12,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3767 states, 2606 states have (on average 1.5441289332310053) internal successors, (4024), 2618 states have internal predecessors, (4024), 1144 states have call successors, (1144), 16 states have call predecessors, (1144), 16 states have return successors, (1144), 1132 states have call predecessors, (1144), 1144 states have call successors, (1144) [2024-11-24 00:27:12,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3767 states to 3767 states and 6312 transitions. [2024-11-24 00:27:12,701 INFO L78 Accepts]: Start accepts. Automaton has 3767 states and 6312 transitions. Word has length 733 [2024-11-24 00:27:12,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:12,702 INFO L471 AbstractCegarLoop]: Abstraction has 3767 states and 6312 transitions. [2024-11-24 00:27:12,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:27:12,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3767 states and 6312 transitions. [2024-11-24 00:27:12,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2024-11-24 00:27:12,715 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:12,715 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:12,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:27:12,716 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:12,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:12,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1074939863, now seen corresponding path program 1 times [2024-11-24 00:27:12,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:12,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804664569] [2024-11-24 00:27:12,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:12,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:14,650 INFO L134 CoverageAnalysis]: Checked inductivity of 25312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2024-11-24 00:27:14,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:14,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804664569] [2024-11-24 00:27:14,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804664569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:14,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:14,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:27:14,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207375745] [2024-11-24 00:27:14,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:14,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:27:14,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:14,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:27:14,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:27:14,660 INFO L87 Difference]: Start difference. First operand 3767 states and 6312 transitions. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:27:20,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:20,197 INFO L93 Difference]: Finished difference Result 11892 states and 19718 transitions. [2024-11-24 00:27:20,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:27:20,198 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) Word has length 734 [2024-11-24 00:27:20,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:20,261 INFO L225 Difference]: With dead ends: 11892 [2024-11-24 00:27:20,262 INFO L226 Difference]: Without dead ends: 8128 [2024-11-24 00:27:20,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:27:20,280 INFO L435 NwaCegarLoop]: 877 mSDtfsCounter, 1853 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 784 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 2940 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 784 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:20,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 2940 Invalid, 1757 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [784 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-24 00:27:20,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8128 states. [2024-11-24 00:27:21,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8128 to 5727. [2024-11-24 00:27:21,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5727 states, 4098 states have (on average 1.5661298194241093) internal successors, (6418), 4118 states have internal predecessors, (6418), 1596 states have call successors, (1596), 32 states have call predecessors, (1596), 32 states have return successors, (1596), 1576 states have call predecessors, (1596), 1596 states have call successors, (1596) [2024-11-24 00:27:21,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5727 states to 5727 states and 9610 transitions. [2024-11-24 00:27:21,255 INFO L78 Accepts]: Start accepts. Automaton has 5727 states and 9610 transitions. Word has length 734 [2024-11-24 00:27:21,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:21,257 INFO L471 AbstractCegarLoop]: Abstraction has 5727 states and 9610 transitions. [2024-11-24 00:27:21,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:27:21,262 INFO L276 IsEmpty]: Start isEmpty. Operand 5727 states and 9610 transitions. [2024-11-24 00:27:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2024-11-24 00:27:21,280 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:21,280 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:21,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:27:21,281 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:21,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:21,281 INFO L85 PathProgramCache]: Analyzing trace with hash 565466773, now seen corresponding path program 1 times [2024-11-24 00:27:21,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:21,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273672503] [2024-11-24 00:27:21,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:21,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:24,487 INFO L134 CoverageAnalysis]: Checked inductivity of 25312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2024-11-24 00:27:24,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:24,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273672503] [2024-11-24 00:27:24,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273672503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:24,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:24,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:27:24,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192045429] [2024-11-24 00:27:24,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:24,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:27:24,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:24,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:27:24,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:27:24,491 INFO L87 Difference]: Start difference. First operand 5727 states and 9610 transitions. Second operand has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 2 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2024-11-24 00:27:31,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:31,350 INFO L93 Difference]: Finished difference Result 38797 states and 65214 transitions. [2024-11-24 00:27:31,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:27:31,351 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 2 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) Word has length 734 [2024-11-24 00:27:31,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:31,520 INFO L225 Difference]: With dead ends: 38797 [2024-11-24 00:27:31,520 INFO L226 Difference]: Without dead ends: 33073 [2024-11-24 00:27:31,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:27:31,555 INFO L435 NwaCegarLoop]: 1085 mSDtfsCounter, 4109 mSDsluCounter, 4844 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4109 SdHoareTripleChecker+Valid, 5929 SdHoareTripleChecker+Invalid, 2330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 844 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:31,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4109 Valid, 5929 Invalid, 2330 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [844 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-24 00:27:31,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33073 states. [2024-11-24 00:27:34,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33073 to 21644. [2024-11-24 00:27:34,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21644 states, 16034 states have (on average 1.587376824248472) internal successors, (25452), 16119 states have internal predecessors, (25452), 5488 states have call successors, (5488), 121 states have call predecessors, (5488), 121 states have return successors, (5488), 5403 states have call predecessors, (5488), 5488 states have call successors, (5488) [2024-11-24 00:27:34,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21644 states to 21644 states and 36428 transitions. [2024-11-24 00:27:34,605 INFO L78 Accepts]: Start accepts. Automaton has 21644 states and 36428 transitions. Word has length 734 [2024-11-24 00:27:34,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:34,606 INFO L471 AbstractCegarLoop]: Abstraction has 21644 states and 36428 transitions. [2024-11-24 00:27:34,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 2 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2024-11-24 00:27:34,608 INFO L276 IsEmpty]: Start isEmpty. Operand 21644 states and 36428 transitions. [2024-11-24 00:27:34,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2024-11-24 00:27:34,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:34,635 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:34,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:27:34,635 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:34,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:34,636 INFO L85 PathProgramCache]: Analyzing trace with hash 72840599, now seen corresponding path program 1 times [2024-11-24 00:27:34,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:34,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106618937] [2024-11-24 00:27:34,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:34,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:35,717 INFO L134 CoverageAnalysis]: Checked inductivity of 25312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2024-11-24 00:27:35,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:35,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106618937] [2024-11-24 00:27:35,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106618937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:35,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:35,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:27:35,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122606133] [2024-11-24 00:27:35,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:35,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:27:35,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:35,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:27:35,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:27:35,722 INFO L87 Difference]: Start difference. First operand 21644 states and 36428 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 3 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 3 states have call predecessors, (113), 3 states have call successors, (113) [2024-11-24 00:27:40,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:40,428 INFO L93 Difference]: Finished difference Result 64672 states and 108856 transitions. [2024-11-24 00:27:40,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:27:40,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 3 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 3 states have call predecessors, (113), 3 states have call successors, (113) Word has length 734 [2024-11-24 00:27:40,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:40,635 INFO L225 Difference]: With dead ends: 64672 [2024-11-24 00:27:40,636 INFO L226 Difference]: Without dead ends: 43080 [2024-11-24 00:27:40,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:27:40,707 INFO L435 NwaCegarLoop]: 770 mSDtfsCounter, 1010 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:40,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 1940 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:27:40,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43080 states. [2024-11-24 00:27:46,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43080 to 43078. [2024-11-24 00:27:46,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43078 states, 31888 states have (on average 1.579591068740592) internal successors, (50370), 32057 states have internal predecessors, (50370), 10948 states have call successors, (10948), 241 states have call predecessors, (10948), 241 states have return successors, (10948), 10779 states have call predecessors, (10948), 10948 states have call successors, (10948) [2024-11-24 00:27:46,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43078 states to 43078 states and 72266 transitions. [2024-11-24 00:27:46,512 INFO L78 Accepts]: Start accepts. Automaton has 43078 states and 72266 transitions. Word has length 734 [2024-11-24 00:27:46,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:46,514 INFO L471 AbstractCegarLoop]: Abstraction has 43078 states and 72266 transitions. [2024-11-24 00:27:46,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 3 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 3 states have call predecessors, (113), 3 states have call successors, (113) [2024-11-24 00:27:46,514 INFO L276 IsEmpty]: Start isEmpty. Operand 43078 states and 72266 transitions. [2024-11-24 00:27:46,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2024-11-24 00:27:46,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:46,563 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:46,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:27:46,565 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:46,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:46,566 INFO L85 PathProgramCache]: Analyzing trace with hash -491264429, now seen corresponding path program 1 times [2024-11-24 00:27:46,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:46,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791320390] [2024-11-24 00:27:46,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:46,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:49,532 INFO L134 CoverageAnalysis]: Checked inductivity of 25312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2024-11-24 00:27:49,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:49,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791320390] [2024-11-24 00:27:49,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791320390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:49,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:49,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:27:49,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389951958] [2024-11-24 00:27:49,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:49,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:27:49,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:49,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:27:49,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:27:49,537 INFO L87 Difference]: Start difference. First operand 43078 states and 72266 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 2 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2024-11-24 00:27:56,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:56,418 INFO L93 Difference]: Finished difference Result 84923 states and 142702 transitions. [2024-11-24 00:27:56,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:27:56,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 2 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) Word has length 734 [2024-11-24 00:27:56,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:56,775 INFO L225 Difference]: With dead ends: 84923 [2024-11-24 00:27:56,775 INFO L226 Difference]: Without dead ends: 63331 [2024-11-24 00:27:56,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:27:56,875 INFO L435 NwaCegarLoop]: 871 mSDtfsCounter, 2796 mSDsluCounter, 3571 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2796 SdHoareTripleChecker+Valid, 4442 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:56,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2796 Valid, 4442 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 00:27:56,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63331 states. [2024-11-24 00:28:02,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63331 to 52045. [2024-11-24 00:28:02,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52045 states, 39492 states have (on average 1.5950572267801073) internal successors, (62992), 39708 states have internal predecessors, (62992), 12264 states have call successors, (12264), 288 states have call predecessors, (12264), 288 states have return successors, (12264), 12048 states have call predecessors, (12264), 12264 states have call successors, (12264) [2024-11-24 00:28:02,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52045 states to 52045 states and 87520 transitions. [2024-11-24 00:28:02,775 INFO L78 Accepts]: Start accepts. Automaton has 52045 states and 87520 transitions. Word has length 734 [2024-11-24 00:28:02,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:02,776 INFO L471 AbstractCegarLoop]: Abstraction has 52045 states and 87520 transitions. [2024-11-24 00:28:02,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 2 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2024-11-24 00:28:02,776 INFO L276 IsEmpty]: Start isEmpty. Operand 52045 states and 87520 transitions. [2024-11-24 00:28:02,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 736 [2024-11-24 00:28:02,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:02,824 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:02,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:28:02,825 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:02,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:02,826 INFO L85 PathProgramCache]: Analyzing trace with hash -702335516, now seen corresponding path program 1 times [2024-11-24 00:28:02,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:02,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327540354] [2024-11-24 00:28:02,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:02,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:03,214 INFO L134 CoverageAnalysis]: Checked inductivity of 25312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2024-11-24 00:28:03,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:03,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327540354] [2024-11-24 00:28:03,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327540354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:03,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:03,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:28:03,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33082104] [2024-11-24 00:28:03,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:03,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:28:03,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:03,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:28:03,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:28:03,217 INFO L87 Difference]: Start difference. First operand 52045 states and 87520 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:28:08,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:08,851 INFO L93 Difference]: Finished difference Result 104757 states and 176244 transitions. [2024-11-24 00:28:08,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:28:08,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) Word has length 735 [2024-11-24 00:28:08,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:09,071 INFO L225 Difference]: With dead ends: 104757 [2024-11-24 00:28:09,071 INFO L226 Difference]: Without dead ends: 52673 [2024-11-24 00:28:09,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:28:09,197 INFO L435 NwaCegarLoop]: 995 mSDtfsCounter, 1470 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:09,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 2876 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:28:09,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52673 states. [2024-11-24 00:28:15,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52673 to 52595. [2024-11-24 00:28:15,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52595 states, 40042 states have (on average 1.5975226012686679) internal successors, (63968), 40258 states have internal predecessors, (63968), 12264 states have call successors, (12264), 288 states have call predecessors, (12264), 288 states have return successors, (12264), 12048 states have call predecessors, (12264), 12264 states have call successors, (12264) [2024-11-24 00:28:15,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52595 states to 52595 states and 88496 transitions. [2024-11-24 00:28:15,335 INFO L78 Accepts]: Start accepts. Automaton has 52595 states and 88496 transitions. Word has length 735 [2024-11-24 00:28:15,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:15,336 INFO L471 AbstractCegarLoop]: Abstraction has 52595 states and 88496 transitions. [2024-11-24 00:28:15,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:28:15,336 INFO L276 IsEmpty]: Start isEmpty. Operand 52595 states and 88496 transitions. [2024-11-24 00:28:15,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 736 [2024-11-24 00:28:15,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:15,375 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:15,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:28:15,375 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:15,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:15,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1967131614, now seen corresponding path program 1 times [2024-11-24 00:28:15,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:15,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495305833] [2024-11-24 00:28:15,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:15,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:16,333 INFO L134 CoverageAnalysis]: Checked inductivity of 25312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2024-11-24 00:28:16,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:16,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495305833] [2024-11-24 00:28:16,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495305833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:16,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:16,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:28:16,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076576989] [2024-11-24 00:28:16,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:16,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:28:16,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:16,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:28:16,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:28:16,337 INFO L87 Difference]: Start difference. First operand 52595 states and 88496 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:28:21,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:21,458 INFO L93 Difference]: Finished difference Result 100665 states and 169047 transitions. [2024-11-24 00:28:21,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:28:21,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) Word has length 735 [2024-11-24 00:28:21,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:21,723 INFO L225 Difference]: With dead ends: 100665 [2024-11-24 00:28:21,724 INFO L226 Difference]: Without dead ends: 47985 [2024-11-24 00:28:21,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:28:21,849 INFO L435 NwaCegarLoop]: 1185 mSDtfsCounter, 995 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:21,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 2351 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:28:21,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47985 states. [2024-11-24 00:28:28,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47985 to 45361. [2024-11-24 00:28:28,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45361 states, 33568 states have (on average 1.581923260247855) internal successors, (53102), 33700 states have internal predecessors, (53102), 11456 states have call successors, (11456), 336 states have call predecessors, (11456), 336 states have return successors, (11456), 11324 states have call predecessors, (11456), 11456 states have call successors, (11456) [2024-11-24 00:28:28,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45361 states to 45361 states and 76014 transitions. [2024-11-24 00:28:28,930 INFO L78 Accepts]: Start accepts. Automaton has 45361 states and 76014 transitions. Word has length 735 [2024-11-24 00:28:28,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:28,931 INFO L471 AbstractCegarLoop]: Abstraction has 45361 states and 76014 transitions. [2024-11-24 00:28:28,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:28:28,931 INFO L276 IsEmpty]: Start isEmpty. Operand 45361 states and 76014 transitions. [2024-11-24 00:28:28,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 736 [2024-11-24 00:28:28,982 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:28,983 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:28,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:28:28,983 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:28,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:28,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1782419390, now seen corresponding path program 1 times [2024-11-24 00:28:28,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:28,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184972709] [2024-11-24 00:28:28,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:28,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:33,060 INFO L134 CoverageAnalysis]: Checked inductivity of 25312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2024-11-24 00:28:33,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:33,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184972709] [2024-11-24 00:28:33,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184972709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:33,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:33,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:28:33,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462514731] [2024-11-24 00:28:33,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:33,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:28:33,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:33,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:28:33,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:28:33,065 INFO L87 Difference]: Start difference. First operand 45361 states and 76014 transitions. Second operand has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 11 states have internal predecessors, (173), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:28:49,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:49,875 INFO L93 Difference]: Finished difference Result 123157 states and 205423 transitions. [2024-11-24 00:28:49,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:28:49,875 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 11 states have internal predecessors, (173), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) Word has length 735 [2024-11-24 00:28:49,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:50,256 INFO L225 Difference]: With dead ends: 123157 [2024-11-24 00:28:50,257 INFO L226 Difference]: Without dead ends: 94407 [2024-11-24 00:28:50,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:28:50,360 INFO L435 NwaCegarLoop]: 997 mSDtfsCounter, 4263 mSDsluCounter, 5478 mSDsCounter, 0 mSdLazyCounter, 2930 mSolverCounterSat, 1276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4263 SdHoareTripleChecker+Valid, 6475 SdHoareTripleChecker+Invalid, 4206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1276 IncrementalHoareTripleChecker+Valid, 2930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:50,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4263 Valid, 6475 Invalid, 4206 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1276 Valid, 2930 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-24 00:28:50,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94407 states. [2024-11-24 00:28:59,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94407 to 74913. [2024-11-24 00:28:59,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74913 states, 56808 states have (on average 1.592610195747078) internal successors, (90473), 57068 states have internal predecessors, (90473), 17480 states have call successors, (17480), 624 states have call predecessors, (17480), 624 states have return successors, (17480), 17220 states have call predecessors, (17480), 17480 states have call successors, (17480) [2024-11-24 00:28:59,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74913 states to 74913 states and 125433 transitions. [2024-11-24 00:28:59,891 INFO L78 Accepts]: Start accepts. Automaton has 74913 states and 125433 transitions. Word has length 735 [2024-11-24 00:28:59,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:59,893 INFO L471 AbstractCegarLoop]: Abstraction has 74913 states and 125433 transitions. [2024-11-24 00:28:59,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 11 states have internal predecessors, (173), 1 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 1 states have call predecessors, (113), 1 states have call successors, (113) [2024-11-24 00:28:59,893 INFO L276 IsEmpty]: Start isEmpty. Operand 74913 states and 125433 transitions. [2024-11-24 00:28:59,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 736 [2024-11-24 00:28:59,973 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:59,973 INFO L218 NwaCegarLoop]: trace histogram [113, 113, 113, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:59,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:28:59,974 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:59,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:59,975 INFO L85 PathProgramCache]: Analyzing trace with hash -283492458, now seen corresponding path program 1 times [2024-11-24 00:28:59,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:59,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91894613] [2024-11-24 00:28:59,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:59,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:29:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:29:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 25312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2024-11-24 00:29:03,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:29:03,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91894613] [2024-11-24 00:29:03,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91894613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:29:03,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:29:03,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:29:03,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484555401] [2024-11-24 00:29:03,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:29:03,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:29:03,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:29:03,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:29:03,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:29:03,443 INFO L87 Difference]: Start difference. First operand 74913 states and 125433 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 2 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113)