./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-86.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_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/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_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-86.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/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_812704f3-c4e8-4c95-88d3-09a679ae2bef/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 a806d48a99ead9732da218ab0539f2c78630232c1efa4792aeda8612b71a9641 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:40:45,544 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:40:45,657 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:40:45,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:40:45,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:40:45,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:40:45,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:40:45,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:40:45,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:40:45,725 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:40:45,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:40:45,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:40:45,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:40:45,727 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:40:45,727 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:40:45,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:40:45,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:40:45,728 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:40:45,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:40:45,729 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:40:45,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:40:45,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:40:45,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:40:45,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:40:45,730 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:40:45,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:40:45,730 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:40:45,730 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:40:45,730 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:40:45,730 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:40:45,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:40:45,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:40:45,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:40:45,731 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:40:45,732 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:40:45,732 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:40:45,732 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:40:45,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:40:45,733 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:40:45,733 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:40:45,733 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:40:45,733 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:40:45,733 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:40:45,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:40:45,734 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:40:45,734 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:40:45,734 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:40:45,734 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:40:45,734 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_812704f3-c4e8-4c95-88d3-09a679ae2bef/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 -> a806d48a99ead9732da218ab0539f2c78630232c1efa4792aeda8612b71a9641 [2024-11-24 01:40:46,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:40:46,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:40:46,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:40:46,166 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:40:46,167 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:40:46,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-86.i [2024-11-24 01:40:50,092 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/data/87c1de4b7/7e3e7e85dab04ccd88a649ac618aeb07/FLAG3c60013e5 [2024-11-24 01:40:50,533 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:40:50,534 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-86.i [2024-11-24 01:40:50,544 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/data/87c1de4b7/7e3e7e85dab04ccd88a649ac618aeb07/FLAG3c60013e5 [2024-11-24 01:40:50,562 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/data/87c1de4b7/7e3e7e85dab04ccd88a649ac618aeb07 [2024-11-24 01:40:50,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:40:50,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:40:50,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:40:50,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:40:50,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:40:50,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:40:50" (1/1) ... [2024-11-24 01:40:50,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa08ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:50, skipping insertion in model container [2024-11-24 01:40:50,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:40:50" (1/1) ... [2024-11-24 01:40:50,611 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:40:50,799 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_812704f3-c4e8-4c95-88d3-09a679ae2bef/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-86.i[915,928] [2024-11-24 01:40:50,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:40:50,902 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:40:50,916 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_812704f3-c4e8-4c95-88d3-09a679ae2bef/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-86.i[915,928] [2024-11-24 01:40:50,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:40:51,008 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:40:51,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51 WrapperNode [2024-11-24 01:40:51,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:40:51,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:40:51,011 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:40:51,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:40:51,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51" (1/1) ... [2024-11-24 01:40:51,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51" (1/1) ... [2024-11-24 01:40:51,132 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 247 [2024-11-24 01:40:51,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:40:51,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:40:51,134 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:40:51,134 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:40:51,148 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51" (1/1) ... [2024-11-24 01:40:51,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51" (1/1) ... [2024-11-24 01:40:51,162 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51" (1/1) ... [2024-11-24 01:40:51,202 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 01:40:51,205 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51" (1/1) ... [2024-11-24 01:40:51,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51" (1/1) ... [2024-11-24 01:40:51,228 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51" (1/1) ... [2024-11-24 01:40:51,233 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51" (1/1) ... [2024-11-24 01:40:51,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51" (1/1) ... [2024-11-24 01:40:51,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51" (1/1) ... [2024-11-24 01:40:51,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51" (1/1) ... [2024-11-24 01:40:51,256 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:40:51,257 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:40:51,257 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:40:51,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:40:51,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51" (1/1) ... [2024-11-24 01:40:51,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:40:51,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:40:51,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:40:51,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:40:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:40:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:40:51,342 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:40:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:40:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:40:51,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:40:51,481 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:40:51,484 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:40:52,297 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-24 01:40:52,297 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:40:52,317 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:40:52,319 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:40:52,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:40:52 BoogieIcfgContainer [2024-11-24 01:40:52,319 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:40:52,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:40:52,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:40:52,328 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:40:52,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:40:50" (1/3) ... [2024-11-24 01:40:52,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560c4e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:40:52, skipping insertion in model container [2024-11-24 01:40:52,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:40:51" (2/3) ... [2024-11-24 01:40:52,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560c4e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:40:52, skipping insertion in model container [2024-11-24 01:40:52,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:40:52" (3/3) ... [2024-11-24 01:40:52,334 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-86.i [2024-11-24 01:40:52,355 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:40:52,357 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-86.i that has 2 procedures, 104 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:40:52,455 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:40:52,475 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;@77519098, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:40:52,475 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:40:52,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-24 01:40:52,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-24 01:40:52,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:52,501 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:52,501 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:52,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:52,508 INFO L85 PathProgramCache]: Analyzing trace with hash 750140910, now seen corresponding path program 1 times [2024-11-24 01:40:52,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:52,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096035995] [2024-11-24 01:40:52,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:52,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-24 01:40:53,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:40:53,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096035995] [2024-11-24 01:40:53,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096035995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:40:53,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074374764] [2024-11-24 01:40:53,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:53,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:40:53,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:40:53,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:40:53,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:40:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:53,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:40:53,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:40:53,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-24 01:40:53,480 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:40:53,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074374764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:40:53,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:40:53,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:40:53,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886436593] [2024-11-24 01:40:53,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:40:53,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:40:53,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:40:53,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:40:53,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:40:53,534 INFO L87 Difference]: Start difference. First operand has 104 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:40:53,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:40:53,594 INFO L93 Difference]: Finished difference Result 201 states and 355 transitions. [2024-11-24 01:40:53,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:40:53,598 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 197 [2024-11-24 01:40:53,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:40:53,611 INFO L225 Difference]: With dead ends: 201 [2024-11-24 01:40:53,611 INFO L226 Difference]: Without dead ends: 100 [2024-11-24 01:40:53,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 198 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 01:40:53,622 INFO L435 NwaCegarLoop]: 157 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, 157 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 01:40:53,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:40:53,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-24 01:40:53,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-24 01:40:53,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-24 01:40:53,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 157 transitions. [2024-11-24 01:40:53,707 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 157 transitions. Word has length 197 [2024-11-24 01:40:53,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:40:53,712 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 157 transitions. [2024-11-24 01:40:53,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:40:53,712 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 157 transitions. [2024-11-24 01:40:53,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-24 01:40:53,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:53,719 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:53,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:40:53,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:40:53,921 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:53,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:53,922 INFO L85 PathProgramCache]: Analyzing trace with hash -263955024, now seen corresponding path program 1 times [2024-11-24 01:40:53,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:53,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133776723] [2024-11-24 01:40:53,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:53,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:54,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:40:54,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:40:54,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133776723] [2024-11-24 01:40:54,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133776723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:40:54,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:40:54,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:40:54,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178860837] [2024-11-24 01:40:54,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:40:54,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:40:54,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:40:54,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:40:54,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:40:54,582 INFO L87 Difference]: Start difference. First operand 100 states and 157 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:40:54,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:40:54,651 INFO L93 Difference]: Finished difference Result 198 states and 313 transitions. [2024-11-24 01:40:54,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:40:54,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-24 01:40:54,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:40:54,656 INFO L225 Difference]: With dead ends: 198 [2024-11-24 01:40:54,657 INFO L226 Difference]: Without dead ends: 101 [2024-11-24 01:40:54,658 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 01:40:54,659 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:40:54,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 306 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:40:54,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-24 01:40:54,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-24 01:40:54,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 68 states have (on average 1.411764705882353) internal successors, (96), 68 states have internal predecessors, (96), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-24 01:40:54,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 158 transitions. [2024-11-24 01:40:54,680 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 158 transitions. Word has length 197 [2024-11-24 01:40:54,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:40:54,682 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 158 transitions. [2024-11-24 01:40:54,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:40:54,683 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 158 transitions. [2024-11-24 01:40:54,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-24 01:40:54,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:54,688 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:54,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:40:54,689 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:54,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:54,690 INFO L85 PathProgramCache]: Analyzing trace with hash 2036867566, now seen corresponding path program 1 times [2024-11-24 01:40:54,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:54,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146197649] [2024-11-24 01:40:54,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:54,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:41:05,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:41:05,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:41:05,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146197649] [2024-11-24 01:41:05,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146197649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:41:05,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:41:05,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:41:05,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103523865] [2024-11-24 01:41:05,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:41:05,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:41:05,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:41:05,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:41:05,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:41:05,662 INFO L87 Difference]: Start difference. First operand 101 states and 158 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:41:07,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:41:07,979 INFO L93 Difference]: Finished difference Result 383 states and 590 transitions. [2024-11-24 01:41:07,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:41:07,982 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-24 01:41:07,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:41:07,989 INFO L225 Difference]: With dead ends: 383 [2024-11-24 01:41:07,990 INFO L226 Difference]: Without dead ends: 285 [2024-11-24 01:41:07,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2024-11-24 01:41:07,996 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 431 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:41:07,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1058 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:41:07,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-24 01:41:08,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 199. [2024-11-24 01:41:08,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 134 states have (on average 1.3955223880597014) internal successors, (187), 134 states have internal predecessors, (187), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-24 01:41:08,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 311 transitions. [2024-11-24 01:41:08,078 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 311 transitions. Word has length 197 [2024-11-24 01:41:08,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:41:08,081 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 311 transitions. [2024-11-24 01:41:08,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:41:08,082 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 311 transitions. [2024-11-24 01:41:08,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-24 01:41:08,089 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:41:08,090 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:08,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:41:08,090 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:41:08,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:41:08,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1557035152, now seen corresponding path program 1 times [2024-11-24 01:41:08,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:41:08,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963886077] [2024-11-24 01:41:08,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:41:08,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:41:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:41:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:41:08,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:41:08,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963886077] [2024-11-24 01:41:08,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963886077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:41:08,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:41:08,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:41:08,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989387173] [2024-11-24 01:41:08,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:41:08,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:41:08,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:41:08,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:41:08,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:41:08,253 INFO L87 Difference]: Start difference. First operand 199 states and 311 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:41:08,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:41:08,336 INFO L93 Difference]: Finished difference Result 394 states and 619 transitions. [2024-11-24 01:41:08,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:41:08,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-24 01:41:08,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:41:08,344 INFO L225 Difference]: With dead ends: 394 [2024-11-24 01:41:08,346 INFO L226 Difference]: Without dead ends: 296 [2024-11-24 01:41:08,347 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 01:41:08,348 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 148 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:41:08,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 314 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:41:08,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-24 01:41:08,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 294. [2024-11-24 01:41:08,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 197 states have (on average 1.3908629441624365) internal successors, (274), 197 states have internal predecessors, (274), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:41:08,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 460 transitions. [2024-11-24 01:41:08,435 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 460 transitions. Word has length 197 [2024-11-24 01:41:08,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:41:08,439 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 460 transitions. [2024-11-24 01:41:08,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:41:08,439 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 460 transitions. [2024-11-24 01:41:08,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-24 01:41:08,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:41:08,443 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:08,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:41:08,445 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:41:08,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:41:08,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1246982480, now seen corresponding path program 1 times [2024-11-24 01:41:08,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:41:08,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849528378] [2024-11-24 01:41:08,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:41:08,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:41:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:41:08,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:41:08,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:41:08,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849528378] [2024-11-24 01:41:08,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849528378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:41:08,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:41:08,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:41:08,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49093832] [2024-11-24 01:41:08,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:41:08,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:41:08,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:41:08,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:41:08,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:41:08,772 INFO L87 Difference]: Start difference. First operand 294 states and 460 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:41:09,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:41:09,155 INFO L93 Difference]: Finished difference Result 510 states and 792 transitions. [2024-11-24 01:41:09,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:41:09,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-24 01:41:09,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:41:09,163 INFO L225 Difference]: With dead ends: 510 [2024-11-24 01:41:09,165 INFO L226 Difference]: Without dead ends: 314 [2024-11-24 01:41:09,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:41:09,168 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 149 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:41:09,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 535 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:41:09,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-24 01:41:09,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 292. [2024-11-24 01:41:09,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 195 states have (on average 1.3846153846153846) internal successors, (270), 195 states have internal predecessors, (270), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:41:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 456 transitions. [2024-11-24 01:41:09,235 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 456 transitions. Word has length 197 [2024-11-24 01:41:09,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:41:09,237 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 456 transitions. [2024-11-24 01:41:09,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:41:09,240 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 456 transitions. [2024-11-24 01:41:09,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-24 01:41:09,243 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:41:09,243 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:09,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:41:09,244 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:41:09,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:41:09,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1228112962, now seen corresponding path program 1 times [2024-11-24 01:41:09,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:41:09,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630292594] [2024-11-24 01:41:09,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:41:09,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:41:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:41:21,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:41:21,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:41:21,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630292594] [2024-11-24 01:41:21,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630292594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:41:21,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:41:21,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 01:41:21,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407122352] [2024-11-24 01:41:21,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:41:21,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:41:21,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:41:21,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:41:21,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:41:21,597 INFO L87 Difference]: Start difference. First operand 292 states and 456 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:41:27,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:41:27,553 INFO L93 Difference]: Finished difference Result 342 states and 514 transitions. [2024-11-24 01:41:27,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:41:27,555 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-11-24 01:41:27,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:41:27,559 INFO L225 Difference]: With dead ends: 342 [2024-11-24 01:41:27,559 INFO L226 Difference]: Without dead ends: 340 [2024-11-24 01:41:27,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2024-11-24 01:41:27,561 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 322 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:41:27,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 1164 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:41:27,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-24 01:41:27,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 293. [2024-11-24 01:41:27,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 196 states have (on average 1.3826530612244898) internal successors, (271), 196 states have internal predecessors, (271), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:41:27,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 457 transitions. [2024-11-24 01:41:27,624 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 457 transitions. Word has length 198 [2024-11-24 01:41:27,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:41:27,625 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 457 transitions. [2024-11-24 01:41:27,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:41:27,626 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 457 transitions. [2024-11-24 01:41:27,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-24 01:41:27,629 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:41:27,629 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:27,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:41:27,629 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:41:27,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:41:27,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1440270376, now seen corresponding path program 1 times [2024-11-24 01:41:27,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:41:27,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028350942] [2024-11-24 01:41:27,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:41:27,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:41:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:41:27,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:41:27,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:41:27,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028350942] [2024-11-24 01:41:27,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028350942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:41:27,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:41:27,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:41:27,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345867729] [2024-11-24 01:41:27,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:41:27,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:41:27,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:41:27,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:41:27,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:41:27,993 INFO L87 Difference]: Start difference. First operand 293 states and 457 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:41:28,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:41:28,050 INFO L93 Difference]: Finished difference Result 497 states and 776 transitions. [2024-11-24 01:41:28,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:41:28,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-11-24 01:41:28,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:41:28,055 INFO L225 Difference]: With dead ends: 497 [2024-11-24 01:41:28,055 INFO L226 Difference]: Without dead ends: 301 [2024-11-24 01:41:28,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 01:41:28,062 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 6 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:41:28,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 305 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:41:28,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-24 01:41:28,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 293. [2024-11-24 01:41:28,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 196 states have (on average 1.3673469387755102) internal successors, (268), 196 states have internal predecessors, (268), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:41:28,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 454 transitions. [2024-11-24 01:41:28,115 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 454 transitions. Word has length 198 [2024-11-24 01:41:28,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:41:28,116 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 454 transitions. [2024-11-24 01:41:28,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:41:28,117 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 454 transitions. [2024-11-24 01:41:28,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-24 01:41:28,120 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:41:28,120 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:28,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:41:28,121 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:41:28,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:41:28,122 INFO L85 PathProgramCache]: Analyzing trace with hash 334736986, now seen corresponding path program 1 times [2024-11-24 01:41:28,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:41:28,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749738805] [2024-11-24 01:41:28,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:41:28,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:41:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:41:35,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:41:35,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:41:35,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749738805] [2024-11-24 01:41:35,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749738805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:41:35,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:41:35,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 01:41:35,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102158986] [2024-11-24 01:41:35,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:41:35,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:41:35,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:41:35,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:41:35,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:41:35,462 INFO L87 Difference]: Start difference. First operand 293 states and 454 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:41:37,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:41:37,708 INFO L93 Difference]: Finished difference Result 347 states and 514 transitions. [2024-11-24 01:41:37,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 01:41:37,709 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2024-11-24 01:41:37,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:41:37,711 INFO L225 Difference]: With dead ends: 347 [2024-11-24 01:41:37,712 INFO L226 Difference]: Without dead ends: 345 [2024-11-24 01:41:37,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=276, Invalid=846, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 01:41:37,713 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 522 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:41:37,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1117 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:41:37,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-24 01:41:37,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 293. [2024-11-24 01:41:37,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 196 states have (on average 1.3673469387755102) internal successors, (268), 196 states have internal predecessors, (268), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:41:37,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 454 transitions. [2024-11-24 01:41:37,751 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 454 transitions. Word has length 198 [2024-11-24 01:41:37,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:41:37,751 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 454 transitions. [2024-11-24 01:41:37,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:41:37,752 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 454 transitions. [2024-11-24 01:41:37,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-24 01:41:37,754 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:41:37,754 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:37,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:41:37,754 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:41:37,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:41:37,755 INFO L85 PathProgramCache]: Analyzing trace with hash -109385737, now seen corresponding path program 1 times [2024-11-24 01:41:37,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:41:37,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319889080] [2024-11-24 01:41:37,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:41:37,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:41:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:41:47,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:41:47,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:41:47,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319889080] [2024-11-24 01:41:47,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319889080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:41:47,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:41:47,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 01:41:47,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282925709] [2024-11-24 01:41:47,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:41:47,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:41:47,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:41:47,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:41:47,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:41:47,968 INFO L87 Difference]: Start difference. First operand 293 states and 454 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:41:57,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:41:57,943 INFO L93 Difference]: Finished difference Result 363 states and 533 transitions. [2024-11-24 01:41:57,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 01:41:57,944 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-11-24 01:41:57,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:41:57,947 INFO L225 Difference]: With dead ends: 363 [2024-11-24 01:41:57,947 INFO L226 Difference]: Without dead ends: 361 [2024-11-24 01:41:57,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=262, Invalid=668, Unknown=0, NotChecked=0, Total=930 [2024-11-24 01:41:57,949 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 369 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:41:57,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 957 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-24 01:41:57,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-24 01:41:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 303. [2024-11-24 01:41:57,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 206 states have (on average 1.3640776699029127) internal successors, (281), 206 states have internal predecessors, (281), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:41:57,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 467 transitions. [2024-11-24 01:41:57,991 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 467 transitions. Word has length 198 [2024-11-24 01:41:57,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:41:57,992 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 467 transitions. [2024-11-24 01:41:57,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:41:57,993 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 467 transitions. [2024-11-24 01:41:57,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-24 01:41:57,995 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:41:57,995 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:57,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:41:57,996 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:41:57,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:41:57,996 INFO L85 PathProgramCache]: Analyzing trace with hash 570672633, now seen corresponding path program 1 times [2024-11-24 01:41:57,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:41:57,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736173222] [2024-11-24 01:41:57,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:41:57,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:41:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:42:09,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:42:09,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:42:09,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736173222] [2024-11-24 01:42:09,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736173222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:42:09,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:42:09,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 01:42:09,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847189711] [2024-11-24 01:42:09,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:42:09,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:42:09,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:42:09,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:42:09,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:42:09,054 INFO L87 Difference]: Start difference. First operand 303 states and 467 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:42:17,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:42:17,575 INFO L93 Difference]: Finished difference Result 357 states and 527 transitions. [2024-11-24 01:42:17,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 01:42:17,576 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-11-24 01:42:17,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:42:17,579 INFO L225 Difference]: With dead ends: 357 [2024-11-24 01:42:17,579 INFO L226 Difference]: Without dead ends: 355 [2024-11-24 01:42:17,580 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=281, Invalid=711, Unknown=0, NotChecked=0, Total=992 [2024-11-24 01:42:17,580 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 256 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:42:17,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 1156 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 01:42:17,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-24 01:42:17,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 303. [2024-11-24 01:42:17,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 206 states have (on average 1.3640776699029127) internal successors, (281), 206 states have internal predecessors, (281), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:42:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 467 transitions. [2024-11-24 01:42:17,609 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 467 transitions. Word has length 198 [2024-11-24 01:42:17,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:42:17,610 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 467 transitions. [2024-11-24 01:42:17,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:42:17,610 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 467 transitions. [2024-11-24 01:42:17,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-24 01:42:17,615 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:42:17,615 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:17,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:42:17,616 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:42:17,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:42:17,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1840413906, now seen corresponding path program 1 times [2024-11-24 01:42:17,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:42:17,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507678099] [2024-11-24 01:42:17,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:42:17,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:42:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:42:24,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:42:24,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:42:24,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507678099] [2024-11-24 01:42:24,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507678099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:42:24,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:42:24,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 01:42:24,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434728374] [2024-11-24 01:42:24,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:42:24,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 01:42:24,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:42:24,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 01:42:24,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:42:24,935 INFO L87 Difference]: Start difference. First operand 303 states and 467 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:42:31,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:42:31,123 INFO L93 Difference]: Finished difference Result 345 states and 513 transitions. [2024-11-24 01:42:31,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:42:31,124 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 199 [2024-11-24 01:42:31,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:42:31,127 INFO L225 Difference]: With dead ends: 345 [2024-11-24 01:42:31,127 INFO L226 Difference]: Without dead ends: 343 [2024-11-24 01:42:31,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2024-11-24 01:42:31,129 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 474 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:42:31,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1294 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-24 01:42:31,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-24 01:42:31,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 300. [2024-11-24 01:42:31,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 203 states have (on average 1.3645320197044335) internal successors, (277), 203 states have internal predecessors, (277), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:42:31,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 463 transitions. [2024-11-24 01:42:31,164 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 463 transitions. Word has length 199 [2024-11-24 01:42:31,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:42:31,165 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 463 transitions. [2024-11-24 01:42:31,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:42:31,165 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 463 transitions. [2024-11-24 01:42:31,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-24 01:42:31,168 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:42:31,168 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:31,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:42:31,168 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:42:31,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:42:31,169 INFO L85 PathProgramCache]: Analyzing trace with hash 959358423, now seen corresponding path program 1 times [2024-11-24 01:42:31,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:42:31,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986016024] [2024-11-24 01:42:31,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:42:31,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:42:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:42:37,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:42:37,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:42:37,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986016024] [2024-11-24 01:42:37,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986016024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:42:37,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:42:37,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 01:42:37,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688463332] [2024-11-24 01:42:37,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:42:37,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:42:37,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:42:37,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:42:37,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:42:37,202 INFO L87 Difference]: Start difference. First operand 300 states and 463 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:42:40,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:42:40,202 INFO L93 Difference]: Finished difference Result 358 states and 528 transitions. [2024-11-24 01:42:40,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:42:40,202 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-11-24 01:42:40,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:42:40,205 INFO L225 Difference]: With dead ends: 358 [2024-11-24 01:42:40,205 INFO L226 Difference]: Without dead ends: 356 [2024-11-24 01:42:40,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=293, Invalid=763, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:42:40,206 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 294 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:42:40,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 1179 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 01:42:40,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-24 01:42:40,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 305. [2024-11-24 01:42:40,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 208 states have (on average 1.3653846153846154) internal successors, (284), 208 states have internal predecessors, (284), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:42:40,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 470 transitions. [2024-11-24 01:42:40,239 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 470 transitions. Word has length 199 [2024-11-24 01:42:40,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:42:40,240 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 470 transitions. [2024-11-24 01:42:40,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:42:40,241 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 470 transitions. [2024-11-24 01:42:40,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-24 01:42:40,244 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:42:40,244 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:40,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:42:40,245 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:42:40,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:42:40,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1774605967, now seen corresponding path program 1 times [2024-11-24 01:42:40,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:42:40,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839616879] [2024-11-24 01:42:40,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:42:40,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:42:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:42:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:42:45,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:42:45,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839616879] [2024-11-24 01:42:45,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839616879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:42:45,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:42:45,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 01:42:45,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516143895] [2024-11-24 01:42:45,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:42:45,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:42:45,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:42:45,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:42:45,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:42:45,310 INFO L87 Difference]: Start difference. First operand 305 states and 470 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:42:49,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:42:49,456 INFO L93 Difference]: Finished difference Result 358 states and 528 transitions. [2024-11-24 01:42:49,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:42:49,457 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-11-24 01:42:49,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:42:49,460 INFO L225 Difference]: With dead ends: 358 [2024-11-24 01:42:49,460 INFO L226 Difference]: Without dead ends: 356 [2024-11-24 01:42:49,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=298, Invalid=758, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:42:49,461 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 365 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:42:49,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1038 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-24 01:42:49,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-24 01:42:49,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 306. [2024-11-24 01:42:49,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 209 states have (on average 1.3636363636363635) internal successors, (285), 209 states have internal predecessors, (285), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:42:49,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 471 transitions. [2024-11-24 01:42:49,493 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 471 transitions. Word has length 199 [2024-11-24 01:42:49,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:42:49,494 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 471 transitions. [2024-11-24 01:42:49,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:42:49,494 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 471 transitions. [2024-11-24 01:42:49,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-24 01:42:49,496 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:42:49,496 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:49,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:42:49,497 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:42:49,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:42:49,497 INFO L85 PathProgramCache]: Analyzing trace with hash 566331413, now seen corresponding path program 1 times [2024-11-24 01:42:49,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:42:49,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275791430] [2024-11-24 01:42:49,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:42:49,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:42:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:43:04,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:43:04,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:43:04,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275791430] [2024-11-24 01:43:04,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275791430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:43:04,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:43:04,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 01:43:04,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548527157] [2024-11-24 01:43:04,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:43:04,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 01:43:04,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:43:04,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 01:43:04,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:43:04,583 INFO L87 Difference]: Start difference. First operand 306 states and 471 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:43:14,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:43:14,299 INFO L93 Difference]: Finished difference Result 354 states and 524 transitions. [2024-11-24 01:43:14,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:43:14,300 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-11-24 01:43:14,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:43:14,302 INFO L225 Difference]: With dead ends: 354 [2024-11-24 01:43:14,302 INFO L226 Difference]: Without dead ends: 352 [2024-11-24 01:43:14,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=315, Invalid=807, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 01:43:14,304 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 281 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:43:14,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 980 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 01:43:14,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-24 01:43:14,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 306. [2024-11-24 01:43:14,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 209 states have (on average 1.3636363636363635) internal successors, (285), 209 states have internal predecessors, (285), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:43:14,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 471 transitions. [2024-11-24 01:43:14,331 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 471 transitions. Word has length 199 [2024-11-24 01:43:14,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:43:14,332 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 471 transitions. [2024-11-24 01:43:14,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:43:14,332 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 471 transitions. [2024-11-24 01:43:14,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-24 01:43:14,333 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:43:14,333 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:14,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:43:14,334 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:43:14,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:43:14,334 INFO L85 PathProgramCache]: Analyzing trace with hash 2127334319, now seen corresponding path program 1 times [2024-11-24 01:43:14,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:43:14,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239686724] [2024-11-24 01:43:14,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:43:14,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:43:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:43:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:43:20,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:43:20,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239686724] [2024-11-24 01:43:20,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239686724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:43:20,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:43:20,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 01:43:20,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495878322] [2024-11-24 01:43:20,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:43:20,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 01:43:20,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:43:20,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 01:43:20,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:43:20,560 INFO L87 Difference]: Start difference. First operand 306 states and 471 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:43:25,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:43:25,215 INFO L93 Difference]: Finished difference Result 353 states and 522 transitions. [2024-11-24 01:43:25,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 01:43:25,215 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-11-24 01:43:25,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:43:25,218 INFO L225 Difference]: With dead ends: 353 [2024-11-24 01:43:25,218 INFO L226 Difference]: Without dead ends: 351 [2024-11-24 01:43:25,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=409, Invalid=1073, Unknown=0, NotChecked=0, Total=1482 [2024-11-24 01:43:25,219 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 269 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:43:25,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 1238 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:43:25,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-24 01:43:25,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 304. [2024-11-24 01:43:25,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 207 states have (on average 1.3623188405797102) internal successors, (282), 207 states have internal predecessors, (282), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:43:25,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 468 transitions. [2024-11-24 01:43:25,250 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 468 transitions. Word has length 199 [2024-11-24 01:43:25,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:43:25,250 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 468 transitions. [2024-11-24 01:43:25,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:43:25,251 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 468 transitions. [2024-11-24 01:43:25,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-24 01:43:25,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:43:25,252 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:25,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:43:25,252 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:43:25,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:43:25,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1872439518, now seen corresponding path program 1 times [2024-11-24 01:43:25,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:43:25,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851355485] [2024-11-24 01:43:25,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:43:25,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:43:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:43:40,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:43:40,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:43:40,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851355485] [2024-11-24 01:43:40,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851355485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:43:40,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:43:40,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 01:43:40,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487900882] [2024-11-24 01:43:40,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:43:40,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 01:43:40,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:43:40,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 01:43:40,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:43:40,042 INFO L87 Difference]: Start difference. First operand 304 states and 468 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:43:52,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:43:52,746 INFO L93 Difference]: Finished difference Result 361 states and 531 transitions. [2024-11-24 01:43:52,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:43:52,747 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-11-24 01:43:52,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:43:52,749 INFO L225 Difference]: With dead ends: 361 [2024-11-24 01:43:52,749 INFO L226 Difference]: Without dead ends: 359 [2024-11-24 01:43:52,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=318, Invalid=804, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 01:43:52,751 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 328 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:43:52,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 951 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-24 01:43:52,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-24 01:43:52,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 310. [2024-11-24 01:43:52,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 213 states have (on average 1.3615023474178405) internal successors, (290), 213 states have internal predecessors, (290), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:43:52,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 476 transitions. [2024-11-24 01:43:52,779 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 476 transitions. Word has length 199 [2024-11-24 01:43:52,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:43:52,779 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 476 transitions. [2024-11-24 01:43:52,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:43:52,779 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 476 transitions. [2024-11-24 01:43:52,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-24 01:43:52,781 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:43:52,781 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:52,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:43:52,781 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:43:52,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:43:52,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1192381148, now seen corresponding path program 1 times [2024-11-24 01:43:52,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:43:52,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163905475] [2024-11-24 01:43:52,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:43:52,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:43:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:09,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:44:09,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:09,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163905475] [2024-11-24 01:44:09,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163905475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:09,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:09,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 01:44:09,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408588892] [2024-11-24 01:44:09,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:09,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:44:09,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:09,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:44:09,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:44:09,578 INFO L87 Difference]: Start difference. First operand 310 states and 476 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:44:20,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:20,858 INFO L93 Difference]: Finished difference Result 355 states and 525 transitions. [2024-11-24 01:44:20,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:44:20,858 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-11-24 01:44:20,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:20,860 INFO L225 Difference]: With dead ends: 355 [2024-11-24 01:44:20,860 INFO L226 Difference]: Without dead ends: 353 [2024-11-24 01:44:20,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=341, Invalid=849, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 01:44:20,861 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 247 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:20,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 1174 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 01:44:20,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-24 01:44:20,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 310. [2024-11-24 01:44:20,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 213 states have (on average 1.3615023474178405) internal successors, (290), 213 states have internal predecessors, (290), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:44:20,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 476 transitions. [2024-11-24 01:44:20,885 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 476 transitions. Word has length 199 [2024-11-24 01:44:20,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:20,885 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 476 transitions. [2024-11-24 01:44:20,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:44:20,886 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 476 transitions. [2024-11-24 01:44:20,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-24 01:44:20,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:20,887 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:20,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:44:20,888 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:20,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:20,888 INFO L85 PathProgramCache]: Analyzing trace with hash 877138845, now seen corresponding path program 1 times [2024-11-24 01:44:20,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:20,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997355247] [2024-11-24 01:44:20,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:20,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:32,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:44:32,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:32,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997355247] [2024-11-24 01:44:32,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997355247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:32,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:32,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 01:44:32,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866028933] [2024-11-24 01:44:32,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:32,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:44:32,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:32,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:44:32,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:44:32,835 INFO L87 Difference]: Start difference. First operand 310 states and 476 transitions. Second operand has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:44:45,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:45,603 INFO L93 Difference]: Finished difference Result 362 states and 533 transitions. [2024-11-24 01:44:45,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 01:44:45,604 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 200 [2024-11-24 01:44:45,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:45,606 INFO L225 Difference]: With dead ends: 362 [2024-11-24 01:44:45,607 INFO L226 Difference]: Without dead ends: 360 [2024-11-24 01:44:45,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=354, Invalid=978, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 01:44:45,608 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 280 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:45,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 1257 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-24 01:44:45,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-24 01:44:45,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 313. [2024-11-24 01:44:45,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 216 states have (on average 1.3611111111111112) internal successors, (294), 216 states have internal predecessors, (294), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:44:45,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 480 transitions. [2024-11-24 01:44:45,635 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 480 transitions. Word has length 200 [2024-11-24 01:44:45,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:45,636 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 480 transitions. [2024-11-24 01:44:45,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:44:45,636 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 480 transitions. [2024-11-24 01:44:45,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-24 01:44:45,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:45,638 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:45,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:44:45,638 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:45,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:45,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1578203423, now seen corresponding path program 1 times [2024-11-24 01:44:45,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:45,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491417899] [2024-11-24 01:44:45,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:45,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:56,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:44:56,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:56,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491417899] [2024-11-24 01:44:56,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491417899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:56,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:56,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 01:44:56,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929986290] [2024-11-24 01:44:56,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:56,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:44:56,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:56,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:44:56,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:44:56,334 INFO L87 Difference]: Start difference. First operand 313 states and 480 transitions. Second operand has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:45:06,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:45:06,096 INFO L93 Difference]: Finished difference Result 352 states and 522 transitions. [2024-11-24 01:45:06,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 01:45:06,097 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 200 [2024-11-24 01:45:06,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:45:06,099 INFO L225 Difference]: With dead ends: 352 [2024-11-24 01:45:06,099 INFO L226 Difference]: Without dead ends: 350 [2024-11-24 01:45:06,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=356, Invalid=904, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 01:45:06,100 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 329 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:45:06,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 1024 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 01:45:06,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-24 01:45:06,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 310. [2024-11-24 01:45:06,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 213 states have (on average 1.3615023474178405) internal successors, (290), 213 states have internal predecessors, (290), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:45:06,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 476 transitions. [2024-11-24 01:45:06,128 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 476 transitions. Word has length 200 [2024-11-24 01:45:06,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:45:06,129 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 476 transitions. [2024-11-24 01:45:06,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:45:06,129 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 476 transitions. [2024-11-24 01:45:06,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-24 01:45:06,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:45:06,131 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:45:06,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:45:06,131 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:45:06,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:45:06,132 INFO L85 PathProgramCache]: Analyzing trace with hash 2139266060, now seen corresponding path program 1 times [2024-11-24 01:45:06,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:45:06,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152931052] [2024-11-24 01:45:06,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:45:06,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:45:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:45:20,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:45:20,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:45:20,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152931052] [2024-11-24 01:45:20,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152931052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:45:20,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:45:20,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-24 01:45:20,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333545139] [2024-11-24 01:45:20,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:45:20,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 01:45:20,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:45:20,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 01:45:20,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:45:20,914 INFO L87 Difference]: Start difference. First operand 310 states and 476 transitions. Second operand has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-24 01:45:38,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:45:38,434 INFO L93 Difference]: Finished difference Result 356 states and 526 transitions. [2024-11-24 01:45:38,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 01:45:38,435 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 200 [2024-11-24 01:45:38,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:45:38,436 INFO L225 Difference]: With dead ends: 356 [2024-11-24 01:45:38,436 INFO L226 Difference]: Without dead ends: 354 [2024-11-24 01:45:38,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=375, Invalid=1031, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 01:45:38,437 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 334 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:45:38,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 1252 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-24 01:45:38,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-24 01:45:38,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 312. [2024-11-24 01:45:38,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 215 states have (on average 1.3627906976744186) internal successors, (293), 215 states have internal predecessors, (293), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:45:38,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 479 transitions. [2024-11-24 01:45:38,471 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 479 transitions. Word has length 200 [2024-11-24 01:45:38,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:45:38,472 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 479 transitions. [2024-11-24 01:45:38,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-24 01:45:38,472 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 479 transitions. [2024-11-24 01:45:38,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-24 01:45:38,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:45:38,474 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:45:38,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:45:38,474 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:45:38,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:45:38,474 INFO L85 PathProgramCache]: Analyzing trace with hash -594698330, now seen corresponding path program 1 times [2024-11-24 01:45:38,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:45:38,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801723785] [2024-11-24 01:45:38,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:45:38,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:45:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:45:52,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:45:52,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:45:52,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801723785] [2024-11-24 01:45:52,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801723785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:45:52,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:45:52,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 01:45:52,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625942470] [2024-11-24 01:45:52,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:45:52,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 01:45:52,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:45:52,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 01:45:52,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:45:52,758 INFO L87 Difference]: Start difference. First operand 312 states and 479 transitions. Second operand has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:46:07,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:46:07,591 INFO L93 Difference]: Finished difference Result 356 states and 526 transitions. [2024-11-24 01:46:07,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 01:46:07,592 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 200 [2024-11-24 01:46:07,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:46:07,594 INFO L225 Difference]: With dead ends: 356 [2024-11-24 01:46:07,594 INFO L226 Difference]: Without dead ends: 354 [2024-11-24 01:46:07,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=353, Invalid=979, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 01:46:07,595 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 262 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:46:07,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1336 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-24 01:46:07,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-24 01:46:07,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 313. [2024-11-24 01:46:07,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 216 states have (on average 1.3611111111111112) internal successors, (294), 216 states have internal predecessors, (294), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:46:07,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 480 transitions. [2024-11-24 01:46:07,627 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 480 transitions. Word has length 200 [2024-11-24 01:46:07,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:46:07,628 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 480 transitions. [2024-11-24 01:46:07,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:46:07,628 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 480 transitions. [2024-11-24 01:46:07,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-24 01:46:07,629 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:46:07,630 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:07,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:46:07,630 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:46:07,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:46:07,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1746239050, now seen corresponding path program 1 times [2024-11-24 01:46:07,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:46:07,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725593514] [2024-11-24 01:46:07,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:46:07,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:46:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:46:22,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:46:22,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:46:22,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725593514] [2024-11-24 01:46:22,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725593514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:46:22,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:46:22,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 01:46:22,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732917809] [2024-11-24 01:46:22,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:46:22,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 01:46:22,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:46:22,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 01:46:22,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:46:22,791 INFO L87 Difference]: Start difference. First operand 313 states and 480 transitions. Second operand has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:46:39,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:46:39,254 INFO L93 Difference]: Finished difference Result 352 states and 522 transitions. [2024-11-24 01:46:39,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 01:46:39,255 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 200 [2024-11-24 01:46:39,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:46:39,258 INFO L225 Difference]: With dead ends: 352 [2024-11-24 01:46:39,258 INFO L226 Difference]: Without dead ends: 350 [2024-11-24 01:46:39,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=392, Invalid=940, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 01:46:39,263 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 218 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:46:39,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 1093 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-24 01:46:39,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-24 01:46:39,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 313. [2024-11-24 01:46:39,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 216 states have (on average 1.3611111111111112) internal successors, (294), 216 states have internal predecessors, (294), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:46:39,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 480 transitions. [2024-11-24 01:46:39,292 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 480 transitions. Word has length 200 [2024-11-24 01:46:39,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:46:39,293 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 480 transitions. [2024-11-24 01:46:39,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:46:39,293 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 480 transitions. [2024-11-24 01:46:39,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-24 01:46:39,295 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:46:39,295 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:39,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 01:46:39,295 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:46:39,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:46:39,296 INFO L85 PathProgramCache]: Analyzing trace with hash -987725340, now seen corresponding path program 1 times [2024-11-24 01:46:39,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:46:39,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557558356] [2024-11-24 01:46:39,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:46:39,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:46:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:46:52,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:46:52,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:46:52,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557558356] [2024-11-24 01:46:52,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557558356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:46:52,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:46:52,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 01:46:52,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581350270] [2024-11-24 01:46:52,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:46:52,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 01:46:52,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:46:52,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 01:46:52,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:46:52,552 INFO L87 Difference]: Start difference. First operand 313 states and 480 transitions. Second operand has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:47:03,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:03,393 INFO L93 Difference]: Finished difference Result 346 states and 515 transitions. [2024-11-24 01:47:03,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 01:47:03,394 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 200 [2024-11-24 01:47:03,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:03,397 INFO L225 Difference]: With dead ends: 346 [2024-11-24 01:47:03,397 INFO L226 Difference]: Without dead ends: 344 [2024-11-24 01:47:03,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=393, Invalid=939, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 01:47:03,398 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 230 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:03,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1154 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-24 01:47:03,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-24 01:47:03,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 311. [2024-11-24 01:47:03,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 214 states have (on average 1.3598130841121496) internal successors, (291), 214 states have internal predecessors, (291), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:47:03,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 477 transitions. [2024-11-24 01:47:03,425 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 477 transitions. Word has length 200 [2024-11-24 01:47:03,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:03,426 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 477 transitions. [2024-11-24 01:47:03,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:47:03,426 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 477 transitions. [2024-11-24 01:47:03,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-24 01:47:03,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:03,428 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:47:03,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 01:47:03,429 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:03,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:03,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1200430072, now seen corresponding path program 1 times [2024-11-24 01:47:03,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:03,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280793398] [2024-11-24 01:47:03,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:03,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:19,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:47:19,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:19,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280793398] [2024-11-24 01:47:19,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280793398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:19,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:47:19,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-24 01:47:19,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413996650] [2024-11-24 01:47:19,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:19,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 01:47:19,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:19,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 01:47:19,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:47:19,201 INFO L87 Difference]: Start difference. First operand 311 states and 477 transitions. Second operand has 20 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:47:43,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:43,736 INFO L93 Difference]: Finished difference Result 355 states and 525 transitions. [2024-11-24 01:47:43,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 01:47:43,737 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 201 [2024-11-24 01:47:43,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:43,740 INFO L225 Difference]: With dead ends: 355 [2024-11-24 01:47:43,740 INFO L226 Difference]: Without dead ends: 353 [2024-11-24 01:47:43,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=386, Invalid=1096, Unknown=0, NotChecked=0, Total=1482 [2024-11-24 01:47:43,742 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 296 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:43,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1315 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-24 01:47:43,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-24 01:47:43,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 311. [2024-11-24 01:47:43,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 214 states have (on average 1.3598130841121496) internal successors, (291), 214 states have internal predecessors, (291), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:47:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 477 transitions. [2024-11-24 01:47:43,770 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 477 transitions. Word has length 201 [2024-11-24 01:47:43,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:43,771 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 477 transitions. [2024-11-24 01:47:43,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:47:43,772 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 477 transitions. [2024-11-24 01:47:43,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-24 01:47:43,773 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:43,773 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:47:43,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 01:47:43,774 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:47:43,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:43,774 INFO L85 PathProgramCache]: Analyzing trace with hash -499365494, now seen corresponding path program 1 times [2024-11-24 01:47:43,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:43,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603961865] [2024-11-24 01:47:43,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:43,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:04,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-24 01:48:04,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:04,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603961865] [2024-11-24 01:48:04,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603961865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:04,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:04,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-24 01:48:04,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889267073] [2024-11-24 01:48:04,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:04,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 01:48:04,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:04,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 01:48:04,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:48:04,995 INFO L87 Difference]: Start difference. First operand 311 states and 477 transitions. Second operand has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 21 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:48:29,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:48:29,538 INFO L93 Difference]: Finished difference Result 345 states and 514 transitions. [2024-11-24 01:48:29,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 01:48:29,539 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 21 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 201 [2024-11-24 01:48:29,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:48:29,540 INFO L225 Difference]: With dead ends: 345 [2024-11-24 01:48:29,540 INFO L226 Difference]: Without dead ends: 343 [2024-11-24 01:48:29,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 26.2s TimeCoverageRelationStatistics Valid=424, Invalid=1136, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 01:48:29,542 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 336 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:48:29,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1190 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-24 01:48:29,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-24 01:48:29,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 303. [2024-11-24 01:48:29,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 206 states have (on average 1.3592233009708738) internal successors, (280), 206 states have internal predecessors, (280), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:48:29,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 466 transitions. [2024-11-24 01:48:29,575 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 466 transitions. Word has length 201 [2024-11-24 01:48:29,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:48:29,576 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 466 transitions. [2024-11-24 01:48:29,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 21 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:48:29,577 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 466 transitions. [2024-11-24 01:48:29,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-24 01:48:29,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:48:29,580 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:29,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 01:48:29,581 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:48:29,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:29,582 INFO L85 PathProgramCache]: Analyzing trace with hash -704856996, now seen corresponding path program 1 times [2024-11-24 01:48:29,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:29,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771816148] [2024-11-24 01:48:29,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:29,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:39,597 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7620 trivial. 0 not checked. [2024-11-24 01:48:39,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:39,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771816148] [2024-11-24 01:48:39,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771816148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:39,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:39,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 01:48:39,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232752516] [2024-11-24 01:48:39,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:39,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:48:39,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:39,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:48:39,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:48:39,599 INFO L87 Difference]: Start difference. First operand 303 states and 466 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:48:42,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:48:42,917 INFO L93 Difference]: Finished difference Result 601 states and 901 transitions. [2024-11-24 01:48:42,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:48:42,919 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 391 [2024-11-24 01:48:42,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:48:42,922 INFO L225 Difference]: With dead ends: 601 [2024-11-24 01:48:42,922 INFO L226 Difference]: Without dead ends: 408 [2024-11-24 01:48:42,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:48:42,926 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 91 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:48:42,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1189 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-24 01:48:42,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-24 01:48:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 318. [2024-11-24 01:48:42,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 221 states have (on average 1.3619909502262444) internal successors, (301), 221 states have internal predecessors, (301), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:48:42,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 487 transitions. [2024-11-24 01:48:42,961 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 487 transitions. Word has length 391 [2024-11-24 01:48:42,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:48:42,962 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 487 transitions. [2024-11-24 01:48:42,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:48:42,962 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 487 transitions. [2024-11-24 01:48:42,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-24 01:48:42,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:48:42,965 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:42,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 01:48:42,966 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:48:42,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:42,966 INFO L85 PathProgramCache]: Analyzing trace with hash 306260254, now seen corresponding path program 1 times [2024-11-24 01:48:42,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:42,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591945360] [2024-11-24 01:48:42,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:42,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:52,761 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7620 trivial. 0 not checked. [2024-11-24 01:48:52,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:52,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591945360] [2024-11-24 01:48:52,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591945360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:52,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:52,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 01:48:52,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456901547] [2024-11-24 01:48:52,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:52,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:48:52,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:52,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:48:52,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:48:52,764 INFO L87 Difference]: Start difference. First operand 318 states and 487 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:48:57,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:48:57,039 INFO L93 Difference]: Finished difference Result 609 states and 915 transitions. [2024-11-24 01:48:57,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:48:57,040 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 391 [2024-11-24 01:48:57,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:48:57,043 INFO L225 Difference]: With dead ends: 609 [2024-11-24 01:48:57,043 INFO L226 Difference]: Without dead ends: 398 [2024-11-24 01:48:57,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:48:57,045 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 84 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:48:57,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 1194 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-24 01:48:57,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-24 01:48:57,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 314. [2024-11-24 01:48:57,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 217 states have (on average 1.359447004608295) internal successors, (295), 217 states have internal predecessors, (295), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:48:57,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 481 transitions. [2024-11-24 01:48:57,076 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 481 transitions. Word has length 391 [2024-11-24 01:48:57,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:48:57,076 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 481 transitions. [2024-11-24 01:48:57,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:48:57,077 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 481 transitions. [2024-11-24 01:48:57,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-24 01:48:57,079 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:48:57,080 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:57,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 01:48:57,080 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:48:57,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:57,080 INFO L85 PathProgramCache]: Analyzing trace with hash -322228464, now seen corresponding path program 1 times [2024-11-24 01:48:57,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:57,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336313683] [2024-11-24 01:48:57,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:57,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:04,633 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7620 trivial. 0 not checked. [2024-11-24 01:49:04,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:04,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336313683] [2024-11-24 01:49:04,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336313683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:04,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:04,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:49:04,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98074957] [2024-11-24 01:49:04,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:04,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:49:04,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:04,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:49:04,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:49:04,635 INFO L87 Difference]: Start difference. First operand 314 states and 481 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:49:06,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:49:06,993 INFO L93 Difference]: Finished difference Result 419 states and 610 transitions. [2024-11-24 01:49:06,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:49:06,994 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 392 [2024-11-24 01:49:06,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:49:06,996 INFO L225 Difference]: With dead ends: 419 [2024-11-24 01:49:06,997 INFO L226 Difference]: Without dead ends: 417 [2024-11-24 01:49:06,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:49:07,000 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 94 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:49:07,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 858 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:49:07,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-24 01:49:07,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 323. [2024-11-24 01:49:07,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 226 states have (on average 1.3628318584070795) internal successors, (308), 226 states have internal predecessors, (308), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:49:07,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 494 transitions. [2024-11-24 01:49:07,037 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 494 transitions. Word has length 392 [2024-11-24 01:49:07,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:49:07,037 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 494 transitions. [2024-11-24 01:49:07,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:49:07,038 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 494 transitions. [2024-11-24 01:49:07,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-24 01:49:07,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:49:07,042 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:07,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 01:49:07,042 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:49:07,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:07,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1240621484, now seen corresponding path program 1 times [2024-11-24 01:49:07,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:07,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448091081] [2024-11-24 01:49:07,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:07,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:19,719 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 67 proven. 2 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-11-24 01:49:19,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:19,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448091081] [2024-11-24 01:49:19,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448091081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:49:19,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785630127] [2024-11-24 01:49:19,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:19,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:49:19,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:49:19,723 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:49:19,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:49:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:19,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:49:19,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:49:21,277 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 4063 proven. 72 refuted. 0 times theorem prover too weak. 3498 trivial. 0 not checked. [2024-11-24 01:49:21,277 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:49:22,320 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 172 proven. 72 refuted. 0 times theorem prover too weak. 7389 trivial. 0 not checked. [2024-11-24 01:49:22,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785630127] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:49:22,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:49:22,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 7, 7] total 27 [2024-11-24 01:49:22,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803109072] [2024-11-24 01:49:22,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:49:22,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-24 01:49:22,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:22,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-24 01:49:22,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2024-11-24 01:49:22,323 INFO L87 Difference]: Start difference. First operand 323 states and 494 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 7 states have call successors, (116), 3 states have call predecessors, (116), 5 states have return successors, (116), 7 states have call predecessors, (116), 7 states have call successors, (116) [2024-11-24 01:49:30,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:49:30,821 INFO L93 Difference]: Finished difference Result 872 states and 1298 transitions. [2024-11-24 01:49:30,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-24 01:49:30,821 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 7 states have call successors, (116), 3 states have call predecessors, (116), 5 states have return successors, (116), 7 states have call predecessors, (116), 7 states have call successors, (116) Word has length 392 [2024-11-24 01:49:30,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:49:30,826 INFO L225 Difference]: With dead ends: 872 [2024-11-24 01:49:30,826 INFO L226 Difference]: Without dead ends: 645 [2024-11-24 01:49:30,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 830 GetRequests, 781 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=447, Invalid=2003, Unknown=0, NotChecked=0, Total=2450 [2024-11-24 01:49:30,829 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 691 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:49:30,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 1796 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-24 01:49:30,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-11-24 01:49:30,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 324. [2024-11-24 01:49:30,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 224 states have (on average 1.3348214285714286) internal successors, (299), 224 states have internal predecessors, (299), 93 states have call successors, (93), 6 states have call predecessors, (93), 6 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:49:30,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 485 transitions. [2024-11-24 01:49:30,896 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 485 transitions. Word has length 392 [2024-11-24 01:49:30,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:49:30,897 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 485 transitions. [2024-11-24 01:49:30,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 7 states have call successors, (116), 3 states have call predecessors, (116), 5 states have return successors, (116), 7 states have call predecessors, (116), 7 states have call successors, (116) [2024-11-24 01:49:30,898 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 485 transitions. [2024-11-24 01:49:30,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-24 01:49:30,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:49:30,902 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:30,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:49:31,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-24 01:49:31,102 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:49:31,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:31,103 INFO L85 PathProgramCache]: Analyzing trace with hash 796498761, now seen corresponding path program 1 times [2024-11-24 01:49:31,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:31,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341788233] [2024-11-24 01:49:31,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:31,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:39,599 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7620 trivial. 0 not checked. [2024-11-24 01:49:39,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:39,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341788233] [2024-11-24 01:49:39,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341788233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:39,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:39,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 01:49:39,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406855508] [2024-11-24 01:49:39,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:39,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:49:39,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:39,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:49:39,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:49:39,602 INFO L87 Difference]: Start difference. First operand 324 states and 485 transitions. Second operand has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:49:42,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:49:42,711 INFO L93 Difference]: Finished difference Result 416 states and 592 transitions. [2024-11-24 01:49:42,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:49:42,712 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 392 [2024-11-24 01:49:42,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:49:42,716 INFO L225 Difference]: With dead ends: 416 [2024-11-24 01:49:42,716 INFO L226 Difference]: Without dead ends: 414 [2024-11-24 01:49:42,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:49:42,717 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 83 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:49:42,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1106 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:49:42,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-24 01:49:42,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 331. [2024-11-24 01:49:42,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 231 states have (on average 1.3333333333333333) internal successors, (308), 231 states have internal predecessors, (308), 93 states have call successors, (93), 6 states have call predecessors, (93), 6 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:49:42,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 494 transitions. [2024-11-24 01:49:42,768 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 494 transitions. Word has length 392 [2024-11-24 01:49:42,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:49:42,769 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 494 transitions. [2024-11-24 01:49:42,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:49:42,769 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 494 transitions. [2024-11-24 01:49:42,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-24 01:49:42,773 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:49:42,773 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:42,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 01:49:42,774 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:49:42,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:42,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1476557131, now seen corresponding path program 1 times [2024-11-24 01:49:42,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:42,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816503250] [2024-11-24 01:49:42,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:42,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:51,227 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7620 trivial. 0 not checked. [2024-11-24 01:49:51,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:51,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816503250] [2024-11-24 01:49:51,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816503250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:51,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:51,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 01:49:51,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235074193] [2024-11-24 01:49:51,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:51,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:49:51,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:51,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:49:51,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:49:51,230 INFO L87 Difference]: Start difference. First operand 331 states and 494 transitions. Second operand has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:49:54,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:49:54,888 INFO L93 Difference]: Finished difference Result 400 states and 575 transitions. [2024-11-24 01:49:54,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:49:54,889 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 392 [2024-11-24 01:49:54,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:49:54,893 INFO L225 Difference]: With dead ends: 400 [2024-11-24 01:49:54,893 INFO L226 Difference]: Without dead ends: 398 [2024-11-24 01:49:54,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:49:54,894 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 91 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:49:54,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1091 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 01:49:54,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-24 01:49:54,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 331. [2024-11-24 01:49:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 231 states have (on average 1.3333333333333333) internal successors, (308), 231 states have internal predecessors, (308), 93 states have call successors, (93), 6 states have call predecessors, (93), 6 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:49:54,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 494 transitions. [2024-11-24 01:49:54,946 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 494 transitions. Word has length 392 [2024-11-24 01:49:54,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:49:54,950 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 494 transitions. [2024-11-24 01:49:54,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:49:54,953 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 494 transitions. [2024-11-24 01:49:54,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-24 01:49:54,956 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:49:54,957 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:54,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 01:49:54,957 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:49:54,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:54,958 INFO L85 PathProgramCache]: Analyzing trace with hash -2082895369, now seen corresponding path program 1 times [2024-11-24 01:49:54,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:54,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782976316] [2024-11-24 01:49:54,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:54,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:02,922 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7620 trivial. 0 not checked. [2024-11-24 01:50:02,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:50:02,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782976316] [2024-11-24 01:50:02,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782976316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:50:02,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:50:02,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:50:02,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176023748] [2024-11-24 01:50:02,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:50:02,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:50:02,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:50:02,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:50:02,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:50:02,924 INFO L87 Difference]: Start difference. First operand 331 states and 494 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:50:05,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:50:05,724 INFO L93 Difference]: Finished difference Result 653 states and 947 transitions. [2024-11-24 01:50:05,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:50:05,725 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 392 [2024-11-24 01:50:05,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:50:05,728 INFO L225 Difference]: With dead ends: 653 [2024-11-24 01:50:05,729 INFO L226 Difference]: Without dead ends: 421 [2024-11-24 01:50:05,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:50:05,730 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 106 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:50:05,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 843 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:50:05,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-24 01:50:05,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 333. [2024-11-24 01:50:05,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 233 states have (on average 1.3390557939914163) internal successors, (312), 233 states have internal predecessors, (312), 93 states have call successors, (93), 6 states have call predecessors, (93), 6 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-24 01:50:05,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 498 transitions. [2024-11-24 01:50:05,781 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 498 transitions. Word has length 392 [2024-11-24 01:50:05,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:50:05,782 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 498 transitions. [2024-11-24 01:50:05,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-24 01:50:05,783 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 498 transitions. [2024-11-24 01:50:05,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-24 01:50:05,786 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:50:05,786 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:50:05,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 01:50:05,786 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:50:05,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:05,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1824729931, now seen corresponding path program 1 times [2024-11-24 01:50:05,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:50:05,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164435106] [2024-11-24 01:50:05,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:05,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:50:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:06,379 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-11-24 01:50:06,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:50:06,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164435106] [2024-11-24 01:50:06,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164435106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:50:06,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:50:06,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:50:06,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149277925] [2024-11-24 01:50:06,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:50:06,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:50:06,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:50:06,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:50:06,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:50:06,381 INFO L87 Difference]: Start difference. First operand 333 states and 498 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-24 01:50:06,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:50:06,701 INFO L93 Difference]: Finished difference Result 839 states and 1237 transitions. [2024-11-24 01:50:06,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:50:06,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 392 [2024-11-24 01:50:06,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:50:06,705 INFO L225 Difference]: With dead ends: 839 [2024-11-24 01:50:06,706 INFO L226 Difference]: Without dead ends: 605 [2024-11-24 01:50:06,707 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:50:06,707 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 296 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:50:06,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 833 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:50:06,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-24 01:50:06,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 462. [2024-11-24 01:50:06,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 329 states have (on average 1.3404255319148937) internal successors, (441), 329 states have internal predecessors, (441), 124 states have call successors, (124), 8 states have call predecessors, (124), 8 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-24 01:50:06,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 689 transitions. [2024-11-24 01:50:06,796 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 689 transitions. Word has length 392 [2024-11-24 01:50:06,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:50:06,797 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 689 transitions. [2024-11-24 01:50:06,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-24 01:50:06,798 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 689 transitions. [2024-11-24 01:50:06,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-24 01:50:06,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:50:06,802 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:50:06,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 01:50:06,802 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:50:06,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:06,803 INFO L85 PathProgramCache]: Analyzing trace with hash 957635214, now seen corresponding path program 1 times [2024-11-24 01:50:06,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:50:06,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139695101] [2024-11-24 01:50:06,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:06,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:50:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 5 proven. 64 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-11-24 01:50:20,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:50:20,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139695101] [2024-11-24 01:50:20,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139695101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:50:20,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62131818] [2024-11-24 01:50:20,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:20,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:50:20,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:50:20,598 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:50:20,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_812704f3-c4e8-4c95-88d3-09a679ae2bef/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:50:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:20,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-11-24 01:50:20,881 INFO L279 TraceCheckSpWp]: Computing forward predicates...