./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-85.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_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/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_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-85.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/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_55ea0c41-981c-40c7-83ce-18527491a35a/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 a45c2430f9ee77637d939805617689caafff3a773f20a4396b37c0a4bb861fb3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:22:49,802 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:22:49,886 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:22:49,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:22:49,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:22:49,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:22:49,942 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:22:49,943 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:22:49,944 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:22:49,944 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:22:49,945 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:22:49,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:22:49,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:22:49,946 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:22:49,946 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:22:49,947 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:22:49,947 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:22:49,947 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:22:49,947 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:22:49,947 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:22:49,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:22:49,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:22:49,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:22:49,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:22:49,947 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:22:49,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:22:49,948 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:22:49,948 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:22:49,948 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:22:49,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:22:49,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:22:49,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:22:49,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:22:49,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:22:49,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:22:49,949 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:22:49,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:22:49,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:22:49,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:22:49,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:22:49,949 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:22:49,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:22:49,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:22:49,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:22:49,950 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:22:49,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:22:49,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:22:49,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:22:49,951 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_55ea0c41-981c-40c7-83ce-18527491a35a/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 -> a45c2430f9ee77637d939805617689caafff3a773f20a4396b37c0a4bb861fb3 [2024-11-24 01:22:50,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:22:50,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:22:50,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:22:50,263 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:22:50,263 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:22:50,265 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-85.i [2024-11-24 01:22:53,233 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/data/61e21ca41/9a69e661386c4ea7a732b843c81729c8/FLAGe6b062e4f [2024-11-24 01:22:53,556 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:22:53,557 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-85.i [2024-11-24 01:22:53,576 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/data/61e21ca41/9a69e661386c4ea7a732b843c81729c8/FLAGe6b062e4f [2024-11-24 01:22:53,809 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/data/61e21ca41/9a69e661386c4ea7a732b843c81729c8 [2024-11-24 01:22:53,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:22:53,815 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:22:53,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:22:53,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:22:53,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:22:53,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:22:53" (1/1) ... [2024-11-24 01:22:53,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24aaf659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:53, skipping insertion in model container [2024-11-24 01:22:53,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:22:53" (1/1) ... [2024-11-24 01:22:53,852 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:22:54,003 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_55ea0c41-981c-40c7-83ce-18527491a35a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-85.i[916,929] [2024-11-24 01:22:54,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:22:54,104 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:22:54,115 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_55ea0c41-981c-40c7-83ce-18527491a35a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-85.i[916,929] [2024-11-24 01:22:54,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:22:54,181 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:22:54,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54 WrapperNode [2024-11-24 01:22:54,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:22:54,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:22:54,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:22:54,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:22:54,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,264 INFO L138 Inliner]: procedures = 27, calls = 174, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 512 [2024-11-24 01:22:54,265 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:22:54,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:22:54,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:22:54,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:22:54,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,283 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,310 INFO L175 MemorySlicer]: Split 140 memory accesses to 2 slices as follows [2, 138]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 40 writes are split as follows [0, 40]. [2024-11-24 01:22:54,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,347 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,348 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,363 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,369 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:22:54,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:22:54,377 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:22:54,377 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:22:54,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:22:54,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:54,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:22:54,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:22:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:22:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 01:22:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 01:22:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:22:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:22:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:22:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:22:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:22:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:22:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:22:54,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:22:54,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:22:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:22:54,605 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:22:54,606 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:22:55,360 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-11-24 01:22:55,360 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:22:55,378 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:22:55,382 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:22:55,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:22:55 BoogieIcfgContainer [2024-11-24 01:22:55,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:22:55,385 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:22:55,386 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:22:55,393 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:22:55,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:22:53" (1/3) ... [2024-11-24 01:22:55,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c360e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:22:55, skipping insertion in model container [2024-11-24 01:22:55,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (2/3) ... [2024-11-24 01:22:55,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c360e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:22:55, skipping insertion in model container [2024-11-24 01:22:55,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:22:55" (3/3) ... [2024-11-24 01:22:55,397 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-85.i [2024-11-24 01:22:55,410 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:22:55,412 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-85.i that has 2 procedures, 131 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:22:55,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:22:55,501 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;@390eed93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:22:55,501 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:22:55,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 105 states have (on average 1.380952380952381) internal successors, (145), 106 states have internal predecessors, (145), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:22:55,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-24 01:22:55,519 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:55,519 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:55,520 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:55,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:55,525 INFO L85 PathProgramCache]: Analyzing trace with hash 809731980, now seen corresponding path program 1 times [2024-11-24 01:22:55,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:55,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091308916] [2024-11-24 01:22:55,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:55,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:55,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2024-11-24 01:22:55,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:55,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091308916] [2024-11-24 01:22:55,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091308916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:55,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967235693] [2024-11-24 01:22:55,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:55,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:55,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:55,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:55,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:22:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:56,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:22:56,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:56,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2024-11-24 01:22:56,309 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:22:56,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967235693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:56,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:56,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:22:56,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31151314] [2024-11-24 01:22:56,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:56,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:22:56,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:56,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:22:56,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:22:56,338 INFO L87 Difference]: Start difference. First operand has 131 states, 105 states have (on average 1.380952380952381) internal successors, (145), 106 states have internal predecessors, (145), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:22:56,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:56,372 INFO L93 Difference]: Finished difference Result 255 states and 399 transitions. [2024-11-24 01:22:56,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:22:56,374 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 179 [2024-11-24 01:22:56,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:56,380 INFO L225 Difference]: With dead ends: 255 [2024-11-24 01:22:56,380 INFO L226 Difference]: Without dead ends: 127 [2024-11-24 01:22:56,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 180 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 01:22:56,388 INFO L435 NwaCegarLoop]: 184 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, 184 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 01:22:56,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:22:56,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-24 01:22:56,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-24 01:22:56,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 102 states have (on average 1.3529411764705883) internal successors, (138), 102 states have internal predecessors, (138), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:22:56,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 184 transitions. [2024-11-24 01:22:56,437 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 184 transitions. Word has length 179 [2024-11-24 01:22:56,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:56,437 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 184 transitions. [2024-11-24 01:22:56,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:22:56,438 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 184 transitions. [2024-11-24 01:22:56,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-24 01:22:56,441 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:56,442 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:56,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:22:56,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:22:56,643 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:56,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:56,644 INFO L85 PathProgramCache]: Analyzing trace with hash 949240606, now seen corresponding path program 1 times [2024-11-24 01:22:56,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:56,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063512871] [2024-11-24 01:22:56,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:56,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:01,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:01,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:01,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063512871] [2024-11-24 01:23:01,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063512871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:01,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:01,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:23:01,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419867009] [2024-11-24 01:23:01,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:01,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:23:01,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:01,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:23:01,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:01,207 INFO L87 Difference]: Start difference. First operand 127 states and 184 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:02,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:02,475 INFO L93 Difference]: Finished difference Result 470 states and 679 transitions. [2024-11-24 01:23:02,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:23:02,476 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 179 [2024-11-24 01:23:02,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:02,483 INFO L225 Difference]: With dead ends: 470 [2024-11-24 01:23:02,484 INFO L226 Difference]: Without dead ends: 346 [2024-11-24 01:23:02,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:23:02,485 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 362 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:02,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 580 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:23:02,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-24 01:23:02,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 199. [2024-11-24 01:23:02,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 171 states have (on average 1.391812865497076) internal successors, (238), 172 states have internal predecessors, (238), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:02,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 288 transitions. [2024-11-24 01:23:02,520 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 288 transitions. Word has length 179 [2024-11-24 01:23:02,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:02,521 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 288 transitions. [2024-11-24 01:23:02,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:02,521 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 288 transitions. [2024-11-24 01:23:02,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 01:23:02,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:02,530 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:02,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:23:02,530 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:02,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:02,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1951990344, now seen corresponding path program 1 times [2024-11-24 01:23:02,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:02,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460668274] [2024-11-24 01:23:02,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:02,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:04,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:04,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:04,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460668274] [2024-11-24 01:23:04,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460668274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:04,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:04,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:23:04,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632479975] [2024-11-24 01:23:04,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:04,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:04,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:04,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:04,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:04,115 INFO L87 Difference]: Start difference. First operand 199 states and 288 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:04,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:04,801 INFO L93 Difference]: Finished difference Result 556 states and 803 transitions. [2024-11-24 01:23:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:04,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 01:23:04,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:04,808 INFO L225 Difference]: With dead ends: 556 [2024-11-24 01:23:04,808 INFO L226 Difference]: Without dead ends: 360 [2024-11-24 01:23:04,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:04,811 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 137 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:04,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 940 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:23:04,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-24 01:23:04,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 211. [2024-11-24 01:23:04,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 183 states have (on average 1.3879781420765027) internal successors, (254), 184 states have internal predecessors, (254), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 304 transitions. [2024-11-24 01:23:04,844 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 304 transitions. Word has length 180 [2024-11-24 01:23:04,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:04,845 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 304 transitions. [2024-11-24 01:23:04,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:04,845 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 304 transitions. [2024-11-24 01:23:04,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 01:23:04,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:04,848 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:04,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:23:04,849 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:04,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:04,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1321908598, now seen corresponding path program 1 times [2024-11-24 01:23:04,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:04,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106000253] [2024-11-24 01:23:04,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:04,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:05,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:05,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:05,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106000253] [2024-11-24 01:23:05,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106000253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:05,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:05,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:23:05,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727012067] [2024-11-24 01:23:05,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:05,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:23:05,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:05,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:23:05,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:05,635 INFO L87 Difference]: Start difference. First operand 211 states and 304 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:06,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:06,163 INFO L93 Difference]: Finished difference Result 631 states and 910 transitions. [2024-11-24 01:23:06,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:06,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 01:23:06,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:06,169 INFO L225 Difference]: With dead ends: 631 [2024-11-24 01:23:06,169 INFO L226 Difference]: Without dead ends: 423 [2024-11-24 01:23:06,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:06,171 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 150 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:06,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 694 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:23:06,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-24 01:23:06,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 257. [2024-11-24 01:23:06,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 229 states have (on average 1.4061135371179039) internal successors, (322), 230 states have internal predecessors, (322), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:06,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 372 transitions. [2024-11-24 01:23:06,215 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 372 transitions. Word has length 180 [2024-11-24 01:23:06,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:06,216 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 372 transitions. [2024-11-24 01:23:06,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:06,216 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 372 transitions. [2024-11-24 01:23:06,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 01:23:06,219 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:06,219 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:06,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:23:06,219 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:06,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:06,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1630099825, now seen corresponding path program 1 times [2024-11-24 01:23:06,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:06,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150685193] [2024-11-24 01:23:06,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:06,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:08,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:08,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:08,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150685193] [2024-11-24 01:23:08,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150685193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:08,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:08,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:23:08,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594388751] [2024-11-24 01:23:08,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:08,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:08,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:08,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:08,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:08,213 INFO L87 Difference]: Start difference. First operand 257 states and 372 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:08,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:08,954 INFO L93 Difference]: Finished difference Result 719 states and 1044 transitions. [2024-11-24 01:23:08,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:23:08,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 180 [2024-11-24 01:23:08,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:08,957 INFO L225 Difference]: With dead ends: 719 [2024-11-24 01:23:08,957 INFO L226 Difference]: Without dead ends: 465 [2024-11-24 01:23:08,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:23:08,959 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 149 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:08,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 763 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:23:08,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-11-24 01:23:08,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 265. [2024-11-24 01:23:08,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 237 states have (on average 1.3755274261603376) internal successors, (326), 238 states have internal predecessors, (326), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:08,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 376 transitions. [2024-11-24 01:23:08,999 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 376 transitions. Word has length 180 [2024-11-24 01:23:09,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:09,001 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 376 transitions. [2024-11-24 01:23:09,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:09,001 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 376 transitions. [2024-11-24 01:23:09,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 01:23:09,006 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:09,006 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:09,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:23:09,007 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:09,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:09,007 INFO L85 PathProgramCache]: Analyzing trace with hash 654033210, now seen corresponding path program 1 times [2024-11-24 01:23:09,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:09,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962653987] [2024-11-24 01:23:09,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:09,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:09,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:09,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:09,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962653987] [2024-11-24 01:23:09,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962653987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:09,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:09,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:23:09,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249560353] [2024-11-24 01:23:09,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:09,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:23:09,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:09,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:23:09,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:09,585 INFO L87 Difference]: Start difference. First operand 265 states and 376 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:10,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:10,063 INFO L93 Difference]: Finished difference Result 689 states and 978 transitions. [2024-11-24 01:23:10,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:10,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 01:23:10,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:10,068 INFO L225 Difference]: With dead ends: 689 [2024-11-24 01:23:10,068 INFO L226 Difference]: Without dead ends: 427 [2024-11-24 01:23:10,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:10,071 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 152 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:10,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 698 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:23:10,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-24 01:23:10,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 261. [2024-11-24 01:23:10,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 233 states have (on average 1.3733905579399142) internal successors, (320), 234 states have internal predecessors, (320), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:10,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 370 transitions. [2024-11-24 01:23:10,104 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 370 transitions. Word has length 180 [2024-11-24 01:23:10,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:10,105 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 370 transitions. [2024-11-24 01:23:10,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:10,105 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 370 transitions. [2024-11-24 01:23:10,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 01:23:10,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:10,108 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:10,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:23:10,108 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:10,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:10,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1049088925, now seen corresponding path program 1 times [2024-11-24 01:23:10,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:10,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570600812] [2024-11-24 01:23:10,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:10,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:11,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:11,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570600812] [2024-11-24 01:23:11,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570600812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:11,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:11,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:23:11,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002288635] [2024-11-24 01:23:11,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:11,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:23:11,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:11,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:23:11,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:11,982 INFO L87 Difference]: Start difference. First operand 261 states and 370 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:12,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:12,997 INFO L93 Difference]: Finished difference Result 690 states and 983 transitions. [2024-11-24 01:23:12,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:23:12,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 180 [2024-11-24 01:23:12,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:13,001 INFO L225 Difference]: With dead ends: 690 [2024-11-24 01:23:13,003 INFO L226 Difference]: Without dead ends: 432 [2024-11-24 01:23:13,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:23:13,007 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 317 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:13,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 518 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:23:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-24 01:23:13,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 263. [2024-11-24 01:23:13,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 235 states have (on average 1.374468085106383) internal successors, (323), 236 states have internal predecessors, (323), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:13,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 373 transitions. [2024-11-24 01:23:13,034 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 373 transitions. Word has length 180 [2024-11-24 01:23:13,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:13,035 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 373 transitions. [2024-11-24 01:23:13,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:13,035 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 373 transitions. [2024-11-24 01:23:13,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 01:23:13,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:13,042 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:13,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:23:13,042 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:13,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:13,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1370979444, now seen corresponding path program 1 times [2024-11-24 01:23:13,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:13,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639195814] [2024-11-24 01:23:13,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:13,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:14,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:23:14,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:14,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639195814] [2024-11-24 01:23:14,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639195814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:14,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089552773] [2024-11-24 01:23:14,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:14,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:14,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:14,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:14,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:23:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:14,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-24 01:23:14,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:14,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-24 01:23:14,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:14,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 51 [2024-11-24 01:23:15,023 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:15,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 21 [2024-11-24 01:23:15,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:15,089 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:23:15,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089552773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:15,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:15,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2024-11-24 01:23:15,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925147637] [2024-11-24 01:23:15,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:15,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:23:15,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:15,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:23:15,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:23:15,094 INFO L87 Difference]: Start difference. First operand 263 states and 373 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:15,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:15,869 INFO L93 Difference]: Finished difference Result 767 states and 1079 transitions. [2024-11-24 01:23:15,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:23:15,870 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 01:23:15,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:15,873 INFO L225 Difference]: With dead ends: 767 [2024-11-24 01:23:15,873 INFO L226 Difference]: Without dead ends: 507 [2024-11-24 01:23:15,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:23:15,875 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 220 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:15,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 987 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:23:15,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-11-24 01:23:15,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 280. [2024-11-24 01:23:15,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 252 states have (on average 1.376984126984127) internal successors, (347), 253 states have internal predecessors, (347), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:15,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 397 transitions. [2024-11-24 01:23:15,897 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 397 transitions. Word has length 180 [2024-11-24 01:23:15,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:15,898 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 397 transitions. [2024-11-24 01:23:15,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:15,898 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 397 transitions. [2024-11-24 01:23:15,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 01:23:15,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:15,901 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:15,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:23:16,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:16,105 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:16,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:16,106 INFO L85 PathProgramCache]: Analyzing trace with hash 349911090, now seen corresponding path program 1 times [2024-11-24 01:23:16,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:16,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112666115] [2024-11-24 01:23:16,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:16,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:17,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:17,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:17,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112666115] [2024-11-24 01:23:17,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112666115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:17,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:17,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:23:17,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489119431] [2024-11-24 01:23:17,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:17,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:23:17,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:17,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:23:17,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:17,003 INFO L87 Difference]: Start difference. First operand 280 states and 397 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:18,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:18,379 INFO L93 Difference]: Finished difference Result 1043 states and 1483 transitions. [2024-11-24 01:23:18,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:23:18,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 01:23:18,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:18,385 INFO L225 Difference]: With dead ends: 1043 [2024-11-24 01:23:18,385 INFO L226 Difference]: Without dead ends: 766 [2024-11-24 01:23:18,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:23:18,389 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 258 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:18,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 1244 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:23:18,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2024-11-24 01:23:18,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 377. [2024-11-24 01:23:18,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 349 states have (on average 1.4068767908309456) internal successors, (491), 350 states have internal predecessors, (491), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:18,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 541 transitions. [2024-11-24 01:23:18,436 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 541 transitions. Word has length 180 [2024-11-24 01:23:18,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:18,436 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 541 transitions. [2024-11-24 01:23:18,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:18,437 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 541 transitions. [2024-11-24 01:23:18,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 01:23:18,441 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:18,441 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:18,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:23:18,442 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:18,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:18,442 INFO L85 PathProgramCache]: Analyzing trace with hash 553330994, now seen corresponding path program 1 times [2024-11-24 01:23:18,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:18,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006302973] [2024-11-24 01:23:18,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:18,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:19,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:19,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:19,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006302973] [2024-11-24 01:23:19,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006302973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:19,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:19,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:23:19,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351647792] [2024-11-24 01:23:19,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:19,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:23:19,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:19,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:23:19,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:19,283 INFO L87 Difference]: Start difference. First operand 377 states and 541 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:20,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:20,433 INFO L93 Difference]: Finished difference Result 1138 states and 1622 transitions. [2024-11-24 01:23:20,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:23:20,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 01:23:20,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:20,439 INFO L225 Difference]: With dead ends: 1138 [2024-11-24 01:23:20,439 INFO L226 Difference]: Without dead ends: 764 [2024-11-24 01:23:20,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:23:20,441 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 326 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:20,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 956 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:23:20,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-11-24 01:23:20,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 394. [2024-11-24 01:23:20,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 366 states have (on average 1.3989071038251366) internal successors, (512), 367 states have internal predecessors, (512), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:20,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 562 transitions. [2024-11-24 01:23:20,485 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 562 transitions. Word has length 180 [2024-11-24 01:23:20,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:20,486 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 562 transitions. [2024-11-24 01:23:20,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:20,486 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 562 transitions. [2024-11-24 01:23:20,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 01:23:20,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:20,490 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:20,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:23:20,491 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:20,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:20,492 INFO L85 PathProgramCache]: Analyzing trace with hash -467737360, now seen corresponding path program 1 times [2024-11-24 01:23:20,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:20,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457199737] [2024-11-24 01:23:20,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:20,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:20,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:20,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:20,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457199737] [2024-11-24 01:23:20,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457199737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:20,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:20,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:23:20,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323164190] [2024-11-24 01:23:20,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:20,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:23:20,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:20,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:23:20,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:23:20,866 INFO L87 Difference]: Start difference. First operand 394 states and 562 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:21,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:21,506 INFO L93 Difference]: Finished difference Result 1129 states and 1620 transitions. [2024-11-24 01:23:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:23:21,507 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 01:23:21,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:21,513 INFO L225 Difference]: With dead ends: 1129 [2024-11-24 01:23:21,513 INFO L226 Difference]: Without dead ends: 738 [2024-11-24 01:23:21,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:23:21,515 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 163 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:21,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1772 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:23:21,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-11-24 01:23:21,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 409. [2024-11-24 01:23:21,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 381 states have (on average 1.398950131233596) internal successors, (533), 382 states have internal predecessors, (533), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:21,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 583 transitions. [2024-11-24 01:23:21,549 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 583 transitions. Word has length 180 [2024-11-24 01:23:21,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:21,551 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 583 transitions. [2024-11-24 01:23:21,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:21,552 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 583 transitions. [2024-11-24 01:23:21,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 01:23:21,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:21,556 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:21,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:23:21,557 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:21,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:21,557 INFO L85 PathProgramCache]: Analyzing trace with hash 2023508472, now seen corresponding path program 1 times [2024-11-24 01:23:21,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:21,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555117553] [2024-11-24 01:23:21,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:21,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:21,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:21,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:21,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555117553] [2024-11-24 01:23:21,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555117553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:21,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:21,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:23:21,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561966253] [2024-11-24 01:23:21,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:21,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:23:21,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:21,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:23:21,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:23:21,675 INFO L87 Difference]: Start difference. First operand 409 states and 583 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:21,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:21,713 INFO L93 Difference]: Finished difference Result 781 states and 1111 transitions. [2024-11-24 01:23:21,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:23:21,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 01:23:21,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:21,717 INFO L225 Difference]: With dead ends: 781 [2024-11-24 01:23:21,717 INFO L226 Difference]: Without dead ends: 375 [2024-11-24 01:23:21,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:23:21,718 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 1 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:21,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 534 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:21,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-24 01:23:21,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2024-11-24 01:23:21,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 347 states have (on average 1.3804034582132565) internal successors, (479), 348 states have internal predecessors, (479), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:21,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 529 transitions. [2024-11-24 01:23:21,739 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 529 transitions. Word has length 180 [2024-11-24 01:23:21,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:21,739 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 529 transitions. [2024-11-24 01:23:21,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:21,739 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 529 transitions. [2024-11-24 01:23:21,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 01:23:21,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:21,742 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:21,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:23:21,742 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:21,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:21,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1305242691, now seen corresponding path program 1 times [2024-11-24 01:23:21,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:21,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835117958] [2024-11-24 01:23:21,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:21,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:23,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:23,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835117958] [2024-11-24 01:23:23,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835117958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:23,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:23,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:23:23,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095722144] [2024-11-24 01:23:23,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:23,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:23,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:23,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:23,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:23,139 INFO L87 Difference]: Start difference. First operand 375 states and 529 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:23,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:23,731 INFO L93 Difference]: Finished difference Result 973 states and 1384 transitions. [2024-11-24 01:23:23,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:23:23,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 181 [2024-11-24 01:23:23,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:23,735 INFO L225 Difference]: With dead ends: 973 [2024-11-24 01:23:23,735 INFO L226 Difference]: Without dead ends: 601 [2024-11-24 01:23:23,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:23:23,737 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 259 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:23,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 407 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:23:23,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-24 01:23:23,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 331. [2024-11-24 01:23:23,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 303 states have (on average 1.3564356435643565) internal successors, (411), 304 states have internal predecessors, (411), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:23,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 461 transitions. [2024-11-24 01:23:23,762 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 461 transitions. Word has length 181 [2024-11-24 01:23:23,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:23,764 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 461 transitions. [2024-11-24 01:23:23,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:23,764 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 461 transitions. [2024-11-24 01:23:23,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 01:23:23,766 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:23,767 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:23,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:23:23,767 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:23,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:23,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1627133210, now seen corresponding path program 1 times [2024-11-24 01:23:23,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:23,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035415201] [2024-11-24 01:23:23,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:23,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:24,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:23:24,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:24,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035415201] [2024-11-24 01:23:24,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035415201] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:24,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049808154] [2024-11-24 01:23:24,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:24,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:24,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:24,983 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:24,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:23:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:25,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-24 01:23:25,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:25,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-24 01:23:25,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2024-11-24 01:23:25,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 60 [2024-11-24 01:23:25,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2024-11-24 01:23:25,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 58 [2024-11-24 01:23:25,443 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:25,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 86 [2024-11-24 01:23:25,467 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:25,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 46 [2024-11-24 01:23:25,575 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:25,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 119 treesize of output 67 [2024-11-24 01:23:25,721 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:25,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 119 treesize of output 67 [2024-11-24 01:23:25,971 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:25,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 125 treesize of output 85 [2024-11-24 01:23:26,298 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:26,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 147 treesize of output 55 [2024-11-24 01:23:26,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:26,390 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:23:26,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049808154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:26,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:26,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2024-11-24 01:23:26,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761044993] [2024-11-24 01:23:26,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:26,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:23:26,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:26,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:23:26,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:23:26,392 INFO L87 Difference]: Start difference. First operand 331 states and 461 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:28,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:28,540 INFO L93 Difference]: Finished difference Result 1037 states and 1449 transitions. [2024-11-24 01:23:28,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:23:28,541 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-11-24 01:23:28,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:28,546 INFO L225 Difference]: With dead ends: 1037 [2024-11-24 01:23:28,546 INFO L226 Difference]: Without dead ends: 709 [2024-11-24 01:23:28,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:23:28,550 INFO L435 NwaCegarLoop]: 294 mSDtfsCounter, 407 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:28,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 2003 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 01:23:28,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2024-11-24 01:23:28,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 324. [2024-11-24 01:23:28,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 296 states have (on average 1.3581081081081081) internal successors, (402), 297 states have internal predecessors, (402), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:28,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 452 transitions. [2024-11-24 01:23:28,575 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 452 transitions. Word has length 181 [2024-11-24 01:23:28,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:28,576 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 452 transitions. [2024-11-24 01:23:28,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:28,576 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 452 transitions. [2024-11-24 01:23:28,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 01:23:28,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:28,580 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:28,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:23:28,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:28,781 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:28,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:28,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1328749556, now seen corresponding path program 1 times [2024-11-24 01:23:28,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:28,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798797590] [2024-11-24 01:23:28,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:28,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:28,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:28,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:28,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798797590] [2024-11-24 01:23:28,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798797590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:28,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:28,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:23:28,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499525960] [2024-11-24 01:23:28,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:28,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:23:28,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:28,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:23:28,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:28,929 INFO L87 Difference]: Start difference. First operand 324 states and 452 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:28,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:28,965 INFO L93 Difference]: Finished difference Result 651 states and 909 transitions. [2024-11-24 01:23:28,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:23:28,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-11-24 01:23:28,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:28,968 INFO L225 Difference]: With dead ends: 651 [2024-11-24 01:23:28,968 INFO L226 Difference]: Without dead ends: 330 [2024-11-24 01:23:28,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:28,970 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 1 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:28,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 707 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:28,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-24 01:23:28,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2024-11-24 01:23:28,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 302 states have (on average 1.3509933774834437) internal successors, (408), 303 states have internal predecessors, (408), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:28,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 458 transitions. [2024-11-24 01:23:28,989 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 458 transitions. Word has length 181 [2024-11-24 01:23:28,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:28,989 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 458 transitions. [2024-11-24 01:23:28,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:28,989 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 458 transitions. [2024-11-24 01:23:28,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 01:23:28,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:28,993 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:28,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:23:28,993 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:28,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:28,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1256362998, now seen corresponding path program 1 times [2024-11-24 01:23:28,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:28,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092529504] [2024-11-24 01:23:28,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:28,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:29,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:29,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:29,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092529504] [2024-11-24 01:23:29,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092529504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:29,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:29,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:23:29,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607016090] [2024-11-24 01:23:29,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:29,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:29,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:29,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:29,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:29,704 INFO L87 Difference]: Start difference. First operand 330 states and 458 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:30,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:30,322 INFO L93 Difference]: Finished difference Result 827 states and 1148 transitions. [2024-11-24 01:23:30,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:30,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-11-24 01:23:30,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:30,325 INFO L225 Difference]: With dead ends: 827 [2024-11-24 01:23:30,326 INFO L226 Difference]: Without dead ends: 500 [2024-11-24 01:23:30,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:23:30,329 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 293 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:30,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 508 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:23:30,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-24 01:23:30,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 324. [2024-11-24 01:23:30,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 296 states have (on average 1.3513513513513513) internal successors, (400), 297 states have internal predecessors, (400), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 450 transitions. [2024-11-24 01:23:30,351 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 450 transitions. Word has length 181 [2024-11-24 01:23:30,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:30,351 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 450 transitions. [2024-11-24 01:23:30,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:30,352 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 450 transitions. [2024-11-24 01:23:30,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 01:23:30,354 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:30,354 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:30,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:23:30,354 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:30,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash 588487610, now seen corresponding path program 1 times [2024-11-24 01:23:30,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:30,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595311984] [2024-11-24 01:23:30,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:30,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:31,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:31,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595311984] [2024-11-24 01:23:31,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595311984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:31,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:31,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:23:31,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94341379] [2024-11-24 01:23:31,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:31,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:31,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:31,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:31,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:31,032 INFO L87 Difference]: Start difference. First operand 324 states and 450 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:31,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:31,644 INFO L93 Difference]: Finished difference Result 815 states and 1134 transitions. [2024-11-24 01:23:31,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:31,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-11-24 01:23:31,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:31,647 INFO L225 Difference]: With dead ends: 815 [2024-11-24 01:23:31,647 INFO L226 Difference]: Without dead ends: 494 [2024-11-24 01:23:31,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:23:31,649 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 469 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:31,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 284 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:23:31,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-24 01:23:31,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 324. [2024-11-24 01:23:31,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 296 states have (on average 1.3445945945945945) internal successors, (398), 297 states have internal predecessors, (398), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:31,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 448 transitions. [2024-11-24 01:23:31,669 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 448 transitions. Word has length 181 [2024-11-24 01:23:31,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:31,669 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 448 transitions. [2024-11-24 01:23:31,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:31,670 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 448 transitions. [2024-11-24 01:23:31,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 01:23:31,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:31,672 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:31,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:23:31,672 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:31,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:31,672 INFO L85 PathProgramCache]: Analyzing trace with hash -432580744, now seen corresponding path program 1 times [2024-11-24 01:23:31,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:31,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664638608] [2024-11-24 01:23:31,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:31,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:32,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 42 proven. 24 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:23:32,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:32,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664638608] [2024-11-24 01:23:32,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664638608] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:32,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547526756] [2024-11-24 01:23:32,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:32,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:32,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:32,475 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:32,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:23:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:32,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 01:23:32,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:32,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-24 01:23:32,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:32,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2024-11-24 01:23:32,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:23:32,866 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:33,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:33,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547526756] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:33,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:23:33,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 9] total 16 [2024-11-24 01:23:33,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091589166] [2024-11-24 01:23:33,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:33,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:33,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:33,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:33,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:23:33,051 INFO L87 Difference]: Start difference. First operand 324 states and 448 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:33,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:33,485 INFO L93 Difference]: Finished difference Result 789 states and 1098 transitions. [2024-11-24 01:23:33,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:33,486 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-11-24 01:23:33,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:33,488 INFO L225 Difference]: With dead ends: 789 [2024-11-24 01:23:33,489 INFO L226 Difference]: Without dead ends: 468 [2024-11-24 01:23:33,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:23:33,490 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 128 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:33,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 1167 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:23:33,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-24 01:23:33,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 322. [2024-11-24 01:23:33,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 294 states have (on average 1.346938775510204) internal successors, (396), 295 states have internal predecessors, (396), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:33,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 446 transitions. [2024-11-24 01:23:33,536 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 446 transitions. Word has length 181 [2024-11-24 01:23:33,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:33,538 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 446 transitions. [2024-11-24 01:23:33,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:33,538 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 446 transitions. [2024-11-24 01:23:33,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-24 01:23:33,540 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:33,540 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:33,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 01:23:33,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-24 01:23:33,744 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:33,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:33,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1059094451, now seen corresponding path program 1 times [2024-11-24 01:23:33,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:33,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420096549] [2024-11-24 01:23:33,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:33,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:33,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:33,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:33,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420096549] [2024-11-24 01:23:33,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420096549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:33,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:33,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:33,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338113265] [2024-11-24 01:23:33,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:33,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:33,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:33,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:33,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:33,829 INFO L87 Difference]: Start difference. First operand 322 states and 446 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:33,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:33,853 INFO L93 Difference]: Finished difference Result 642 states and 891 transitions. [2024-11-24 01:23:33,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:33,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 182 [2024-11-24 01:23:33,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:33,856 INFO L225 Difference]: With dead ends: 642 [2024-11-24 01:23:33,856 INFO L226 Difference]: Without dead ends: 323 [2024-11-24 01:23:33,857 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 01:23:33,857 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 360 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 01:23:33,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 360 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:33,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-24 01:23:33,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-11-24 01:23:33,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 295 states have (on average 1.3457627118644069) internal successors, (397), 296 states have internal predecessors, (397), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:33,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 447 transitions. [2024-11-24 01:23:33,876 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 447 transitions. Word has length 182 [2024-11-24 01:23:33,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:33,878 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 447 transitions. [2024-11-24 01:23:33,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:33,878 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 447 transitions. [2024-11-24 01:23:33,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-24 01:23:33,879 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:33,879 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:33,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:23:33,880 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:33,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:33,880 INFO L85 PathProgramCache]: Analyzing trace with hash -2088453749, now seen corresponding path program 1 times [2024-11-24 01:23:33,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:33,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244408509] [2024-11-24 01:23:33,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:33,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:34,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:34,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:34,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244408509] [2024-11-24 01:23:34,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244408509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:34,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:34,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:23:34,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800970730] [2024-11-24 01:23:34,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:34,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:23:34,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:34,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:23:34,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:34,063 INFO L87 Difference]: Start difference. First operand 323 states and 447 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:34,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:34,446 INFO L93 Difference]: Finished difference Result 815 states and 1125 transitions. [2024-11-24 01:23:34,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:23:34,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 182 [2024-11-24 01:23:34,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:34,450 INFO L225 Difference]: With dead ends: 815 [2024-11-24 01:23:34,450 INFO L226 Difference]: Without dead ends: 495 [2024-11-24 01:23:34,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:34,451 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 93 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:34,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 592 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:23:34,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-24 01:23:34,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 323. [2024-11-24 01:23:34,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 295 states have (on average 1.3423728813559321) internal successors, (396), 296 states have internal predecessors, (396), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:34,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 446 transitions. [2024-11-24 01:23:34,472 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 446 transitions. Word has length 182 [2024-11-24 01:23:34,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:34,473 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 446 transitions. [2024-11-24 01:23:34,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:34,473 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 446 transitions. [2024-11-24 01:23:34,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-24 01:23:34,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:34,474 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:34,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:23:34,475 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:34,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:34,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1812146761, now seen corresponding path program 1 times [2024-11-24 01:23:34,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:34,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781556605] [2024-11-24 01:23:34,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:34,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:34,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:34,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:34,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781556605] [2024-11-24 01:23:34,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781556605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:34,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:34,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:23:34,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472287099] [2024-11-24 01:23:34,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:34,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:23:34,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:34,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:23:34,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:34,695 INFO L87 Difference]: Start difference. First operand 323 states and 446 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:34,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:34,904 INFO L93 Difference]: Finished difference Result 557 states and 767 transitions. [2024-11-24 01:23:34,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:23:34,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 182 [2024-11-24 01:23:34,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:34,906 INFO L225 Difference]: With dead ends: 557 [2024-11-24 01:23:34,906 INFO L226 Difference]: Without dead ends: 236 [2024-11-24 01:23:34,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:34,907 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:34,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 551 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:23:34,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-24 01:23:34,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 235. [2024-11-24 01:23:34,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 207 states have (on average 1.3091787439613527) internal successors, (271), 208 states have internal predecessors, (271), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:34,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 321 transitions. [2024-11-24 01:23:34,924 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 321 transitions. Word has length 182 [2024-11-24 01:23:34,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:34,924 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 321 transitions. [2024-11-24 01:23:34,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:34,924 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 321 transitions. [2024-11-24 01:23:34,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-24 01:23:34,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:34,926 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:34,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:23:34,926 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:34,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:34,926 INFO L85 PathProgramCache]: Analyzing trace with hash -121930257, now seen corresponding path program 1 times [2024-11-24 01:23:34,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:34,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111681970] [2024-11-24 01:23:34,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:34,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:36,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:36,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:36,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111681970] [2024-11-24 01:23:36,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111681970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:36,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:36,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:23:36,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398099397] [2024-11-24 01:23:36,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:36,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:36,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:36,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:36,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:36,078 INFO L87 Difference]: Start difference. First operand 235 states and 321 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:36,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:36,489 INFO L93 Difference]: Finished difference Result 640 states and 874 transitions. [2024-11-24 01:23:36,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:36,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 183 [2024-11-24 01:23:36,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:36,495 INFO L225 Difference]: With dead ends: 640 [2024-11-24 01:23:36,495 INFO L226 Difference]: Without dead ends: 408 [2024-11-24 01:23:36,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:36,498 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 74 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:36,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 543 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:23:36,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-24 01:23:36,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 334. [2024-11-24 01:23:36,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 306 states have (on average 1.303921568627451) internal successors, (399), 307 states have internal predecessors, (399), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 449 transitions. [2024-11-24 01:23:36,517 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 449 transitions. Word has length 183 [2024-11-24 01:23:36,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:36,518 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 449 transitions. [2024-11-24 01:23:36,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:36,518 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 449 transitions. [2024-11-24 01:23:36,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-24 01:23:36,520 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:36,521 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:36,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 01:23:36,521 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:36,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:36,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1157933421, now seen corresponding path program 1 times [2024-11-24 01:23:36,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:36,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394447555] [2024-11-24 01:23:36,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:36,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:37,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:37,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:37,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394447555] [2024-11-24 01:23:37,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394447555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:37,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:37,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:23:37,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317576811] [2024-11-24 01:23:37,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:37,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:23:37,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:37,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:23:37,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:23:37,284 INFO L87 Difference]: Start difference. First operand 334 states and 449 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:37,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:37,783 INFO L93 Difference]: Finished difference Result 729 states and 984 transitions. [2024-11-24 01:23:37,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:23:37,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 183 [2024-11-24 01:23:37,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:37,786 INFO L225 Difference]: With dead ends: 729 [2024-11-24 01:23:37,786 INFO L226 Difference]: Without dead ends: 398 [2024-11-24 01:23:37,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:23:37,787 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 148 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:37,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1114 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:23:37,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-24 01:23:37,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 340. [2024-11-24 01:23:37,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 312 states have (on average 1.2980769230769231) internal successors, (405), 313 states have internal predecessors, (405), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:37,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 455 transitions. [2024-11-24 01:23:37,810 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 455 transitions. Word has length 183 [2024-11-24 01:23:37,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:37,811 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 455 transitions. [2024-11-24 01:23:37,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:37,811 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 455 transitions. [2024-11-24 01:23:37,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-24 01:23:37,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:37,813 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:37,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 01:23:37,813 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:37,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:37,813 INFO L85 PathProgramCache]: Analyzing trace with hash 351981714, now seen corresponding path program 1 times [2024-11-24 01:23:37,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:37,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081822561] [2024-11-24 01:23:37,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:37,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:37,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:37,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:37,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081822561] [2024-11-24 01:23:37,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081822561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:37,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:37,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:23:37,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440679157] [2024-11-24 01:23:37,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:37,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:23:37,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:37,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:23:37,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:23:37,904 INFO L87 Difference]: Start difference. First operand 340 states and 455 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:37,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:37,928 INFO L93 Difference]: Finished difference Result 679 states and 911 transitions. [2024-11-24 01:23:37,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:23:37,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 185 [2024-11-24 01:23:37,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:37,930 INFO L225 Difference]: With dead ends: 679 [2024-11-24 01:23:37,931 INFO L226 Difference]: Without dead ends: 342 [2024-11-24 01:23:37,931 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 01:23:37,932 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 350 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 01:23:37,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 350 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:37,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-24 01:23:37,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2024-11-24 01:23:37,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 314 states have (on average 1.2961783439490446) internal successors, (407), 315 states have internal predecessors, (407), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:37,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 457 transitions. [2024-11-24 01:23:37,958 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 457 transitions. Word has length 185 [2024-11-24 01:23:37,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:37,958 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 457 transitions. [2024-11-24 01:23:37,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:37,959 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 457 transitions. [2024-11-24 01:23:37,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-24 01:23:37,963 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:37,963 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:37,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 01:23:37,963 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:37,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash -812719466, now seen corresponding path program 1 times [2024-11-24 01:23:37,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:37,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716429336] [2024-11-24 01:23:37,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:37,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:38,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:38,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:38,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716429336] [2024-11-24 01:23:38,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716429336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:38,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:38,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:23:38,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183709772] [2024-11-24 01:23:38,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:38,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:23:38,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:38,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:23:38,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:38,156 INFO L87 Difference]: Start difference. First operand 342 states and 457 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:38,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:38,460 INFO L93 Difference]: Finished difference Result 749 states and 1004 transitions. [2024-11-24 01:23:38,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:23:38,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 185 [2024-11-24 01:23:38,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:38,463 INFO L225 Difference]: With dead ends: 749 [2024-11-24 01:23:38,463 INFO L226 Difference]: Without dead ends: 410 [2024-11-24 01:23:38,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:38,465 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 51 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:38,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 549 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:23:38,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-24 01:23:38,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 342. [2024-11-24 01:23:38,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 314 states have (on average 1.2898089171974523) internal successors, (405), 315 states have internal predecessors, (405), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:38,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 455 transitions. [2024-11-24 01:23:38,491 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 455 transitions. Word has length 185 [2024-11-24 01:23:38,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:38,491 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 455 transitions. [2024-11-24 01:23:38,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:38,491 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 455 transitions. [2024-11-24 01:23:38,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-24 01:23:38,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:38,494 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:38,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 01:23:38,494 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:38,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:38,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2092583144, now seen corresponding path program 1 times [2024-11-24 01:23:38,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:38,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55627862] [2024-11-24 01:23:38,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:38,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:38,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:38,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:38,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55627862] [2024-11-24 01:23:38,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55627862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:38,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:38,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:23:38,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205462238] [2024-11-24 01:23:38,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:38,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:23:38,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:38,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:23:38,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:23:38,694 INFO L87 Difference]: Start difference. First operand 342 states and 455 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:38,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:38,926 INFO L93 Difference]: Finished difference Result 671 states and 895 transitions. [2024-11-24 01:23:38,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:23:38,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 185 [2024-11-24 01:23:38,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:38,928 INFO L225 Difference]: With dead ends: 671 [2024-11-24 01:23:38,929 INFO L226 Difference]: Without dead ends: 332 [2024-11-24 01:23:38,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:23:38,930 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:38,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 435 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:23:38,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-24 01:23:38,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 330. [2024-11-24 01:23:38,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 302 states have (on average 1.2880794701986755) internal successors, (389), 303 states have internal predecessors, (389), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:38,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 439 transitions. [2024-11-24 01:23:38,950 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 439 transitions. Word has length 185 [2024-11-24 01:23:38,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:38,950 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 439 transitions. [2024-11-24 01:23:38,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:38,951 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 439 transitions. [2024-11-24 01:23:38,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-24 01:23:38,952 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:38,952 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:38,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 01:23:38,953 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:38,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:38,953 INFO L85 PathProgramCache]: Analyzing trace with hash -940134299, now seen corresponding path program 1 times [2024-11-24 01:23:38,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:38,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927601295] [2024-11-24 01:23:38,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:38,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:40,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:40,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:40,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927601295] [2024-11-24 01:23:40,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927601295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:40,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:40,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:23:40,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778367681] [2024-11-24 01:23:40,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:40,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:23:40,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:40,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:23:40,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:23:40,057 INFO L87 Difference]: Start difference. First operand 330 states and 439 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:40,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:40,730 INFO L93 Difference]: Finished difference Result 890 states and 1171 transitions. [2024-11-24 01:23:40,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:23:40,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 187 [2024-11-24 01:23:40,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:40,732 INFO L225 Difference]: With dead ends: 890 [2024-11-24 01:23:40,732 INFO L226 Difference]: Without dead ends: 563 [2024-11-24 01:23:40,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:23:40,734 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 146 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:40,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1135 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:23:40,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-11-24 01:23:40,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 422. [2024-11-24 01:23:40,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 394 states have (on average 1.251269035532995) internal successors, (493), 395 states have internal predecessors, (493), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:40,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 543 transitions. [2024-11-24 01:23:40,760 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 543 transitions. Word has length 187 [2024-11-24 01:23:40,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:40,761 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 543 transitions. [2024-11-24 01:23:40,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:40,761 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 543 transitions. [2024-11-24 01:23:40,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-24 01:23:40,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:40,763 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:40,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 01:23:40,763 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:40,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:40,764 INFO L85 PathProgramCache]: Analyzing trace with hash -681968861, now seen corresponding path program 1 times [2024-11-24 01:23:40,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:40,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862519161] [2024-11-24 01:23:40,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:40,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:40,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:40,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:40,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862519161] [2024-11-24 01:23:40,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862519161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:40,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:40,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:23:40,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989959772] [2024-11-24 01:23:40,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:40,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:23:40,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:40,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:23:40,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:23:40,880 INFO L87 Difference]: Start difference. First operand 422 states and 543 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:40,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:40,926 INFO L93 Difference]: Finished difference Result 851 states and 1097 transitions. [2024-11-24 01:23:40,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:23:40,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 187 [2024-11-24 01:23:40,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:40,929 INFO L225 Difference]: With dead ends: 851 [2024-11-24 01:23:40,929 INFO L226 Difference]: Without dead ends: 432 [2024-11-24 01:23:40,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:23:40,930 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 1 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:40,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 502 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:40,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-24 01:23:40,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 430. [2024-11-24 01:23:40,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 402 states have (on average 1.2462686567164178) internal successors, (501), 403 states have internal predecessors, (501), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 01:23:40,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 551 transitions. [2024-11-24 01:23:40,954 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 551 transitions. Word has length 187 [2024-11-24 01:23:40,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:40,954 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 551 transitions. [2024-11-24 01:23:40,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:40,954 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 551 transitions. [2024-11-24 01:23:40,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-24 01:23:40,956 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:40,956 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:40,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 01:23:40,956 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:40,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:40,957 INFO L85 PathProgramCache]: Analyzing trace with hash 80479717, now seen corresponding path program 1 times [2024-11-24 01:23:40,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:40,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679440060] [2024-11-24 01:23:40,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:40,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:42,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:42,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:42,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679440060] [2024-11-24 01:23:42,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679440060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:42,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:42,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:23:42,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491748996] [2024-11-24 01:23:42,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:42,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:42,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:42,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:42,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:42,701 INFO L87 Difference]: Start difference. First operand 430 states and 551 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:43,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:43,135 INFO L93 Difference]: Finished difference Result 942 states and 1201 transitions. [2024-11-24 01:23:43,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:43,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 188 [2024-11-24 01:23:43,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:43,138 INFO L225 Difference]: With dead ends: 942 [2024-11-24 01:23:43,138 INFO L226 Difference]: Without dead ends: 515 [2024-11-24 01:23:43,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:43,144 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 71 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:43,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 713 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:23:43,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-11-24 01:23:43,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 334. [2024-11-24 01:23:43,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 308 states have (on average 1.2435064935064934) internal successors, (383), 308 states have internal predecessors, (383), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:23:43,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 429 transitions. [2024-11-24 01:23:43,166 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 429 transitions. Word has length 188 [2024-11-24 01:23:43,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:43,166 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 429 transitions. [2024-11-24 01:23:43,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:43,168 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 429 transitions. [2024-11-24 01:23:43,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-24 01:23:43,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:43,169 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:43,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 01:23:43,170 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:43,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:43,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1326640703, now seen corresponding path program 1 times [2024-11-24 01:23:43,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:43,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815879042] [2024-11-24 01:23:43,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:43,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:44,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:44,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:44,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815879042] [2024-11-24 01:23:44,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815879042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:44,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:44,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:23:44,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877955239] [2024-11-24 01:23:44,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:44,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:44,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:44,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:44,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:44,631 INFO L87 Difference]: Start difference. First operand 334 states and 429 transitions. Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:44,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:44,954 INFO L93 Difference]: Finished difference Result 700 states and 899 transitions. [2024-11-24 01:23:44,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:44,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 189 [2024-11-24 01:23:44,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:44,956 INFO L225 Difference]: With dead ends: 700 [2024-11-24 01:23:44,956 INFO L226 Difference]: Without dead ends: 369 [2024-11-24 01:23:44,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:44,957 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 60 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:44,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 622 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:23:44,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-24 01:23:44,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 334. [2024-11-24 01:23:44,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 308 states have (on average 1.2402597402597402) internal successors, (382), 308 states have internal predecessors, (382), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:23:44,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 428 transitions. [2024-11-24 01:23:44,977 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 428 transitions. Word has length 189 [2024-11-24 01:23:44,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:44,977 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 428 transitions. [2024-11-24 01:23:44,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:44,978 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 428 transitions. [2024-11-24 01:23:44,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 01:23:44,979 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:44,979 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:44,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 01:23:44,979 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:44,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:44,980 INFO L85 PathProgramCache]: Analyzing trace with hash 186419967, now seen corresponding path program 1 times [2024-11-24 01:23:44,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:44,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078955331] [2024-11-24 01:23:44,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:44,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:46,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:46,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:46,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078955331] [2024-11-24 01:23:46,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078955331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:46,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:46,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:23:46,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174802374] [2024-11-24 01:23:46,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:46,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:46,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:46,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:46,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:46,113 INFO L87 Difference]: Start difference. First operand 334 states and 428 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:46,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:46,466 INFO L93 Difference]: Finished difference Result 784 states and 1002 transitions. [2024-11-24 01:23:46,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:23:46,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-11-24 01:23:46,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:46,468 INFO L225 Difference]: With dead ends: 784 [2024-11-24 01:23:46,468 INFO L226 Difference]: Without dead ends: 453 [2024-11-24 01:23:46,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:46,469 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 129 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:46,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 600 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:23:46,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-24 01:23:46,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 448. [2024-11-24 01:23:46,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 416 states have (on average 1.2451923076923077) internal successors, (518), 417 states have internal predecessors, (518), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 01:23:46,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 572 transitions. [2024-11-24 01:23:46,499 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 572 transitions. Word has length 190 [2024-11-24 01:23:46,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:46,499 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 572 transitions. [2024-11-24 01:23:46,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:46,499 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 572 transitions. [2024-11-24 01:23:46,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 01:23:46,501 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:46,501 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:46,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 01:23:46,502 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:46,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:46,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1466283645, now seen corresponding path program 1 times [2024-11-24 01:23:46,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:46,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753100858] [2024-11-24 01:23:46,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:46,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:46,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:46,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:46,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753100858] [2024-11-24 01:23:46,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753100858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:46,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:46,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:23:46,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824062908] [2024-11-24 01:23:46,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:46,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:23:46,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:46,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:23:46,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:46,636 INFO L87 Difference]: Start difference. First operand 448 states and 572 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:46,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:46,689 INFO L93 Difference]: Finished difference Result 897 states and 1146 transitions. [2024-11-24 01:23:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:23:46,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 190 [2024-11-24 01:23:46,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:46,691 INFO L225 Difference]: With dead ends: 897 [2024-11-24 01:23:46,692 INFO L226 Difference]: Without dead ends: 452 [2024-11-24 01:23:46,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:46,693 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 1 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:46,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 664 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:46,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-24 01:23:46,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 449. [2024-11-24 01:23:46,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 417 states have (on average 1.2398081534772183) internal successors, (517), 418 states have internal predecessors, (517), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 01:23:46,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 571 transitions. [2024-11-24 01:23:46,722 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 571 transitions. Word has length 190 [2024-11-24 01:23:46,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:46,723 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 571 transitions. [2024-11-24 01:23:46,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:23:46,723 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 571 transitions. [2024-11-24 01:23:46,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 01:23:46,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:46,725 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:46,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 01:23:46,725 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:46,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:46,726 INFO L85 PathProgramCache]: Analyzing trace with hash 434566461, now seen corresponding path program 1 times [2024-11-24 01:23:46,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:46,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237771831] [2024-11-24 01:23:46,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:46,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:48,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:48,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:48,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237771831] [2024-11-24 01:23:48,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237771831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:48,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:48,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:23:48,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906708868] [2024-11-24 01:23:48,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:48,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:23:48,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:48,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:23:48,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:23:48,100 INFO L87 Difference]: Start difference. First operand 449 states and 571 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:48,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:48,713 INFO L93 Difference]: Finished difference Result 945 states and 1201 transitions. [2024-11-24 01:23:48,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:23:48,713 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-11-24 01:23:48,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:48,715 INFO L225 Difference]: With dead ends: 945 [2024-11-24 01:23:48,715 INFO L226 Difference]: Without dead ends: 499 [2024-11-24 01:23:48,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:23:48,716 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 72 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:48,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1347 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:23:48,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-24 01:23:48,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 492. [2024-11-24 01:23:48,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 452 states have (on average 1.238938053097345) internal successors, (560), 454 states have internal predecessors, (560), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-24 01:23:48,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 626 transitions. [2024-11-24 01:23:48,754 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 626 transitions. Word has length 190 [2024-11-24 01:23:48,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:48,754 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 626 transitions. [2024-11-24 01:23:48,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:48,755 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 626 transitions. [2024-11-24 01:23:48,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 01:23:48,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:48,756 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:48,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 01:23:48,757 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:48,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:48,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1668966143, now seen corresponding path program 1 times [2024-11-24 01:23:48,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:48,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103375467] [2024-11-24 01:23:48,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:48,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:49,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:49,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:49,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103375467] [2024-11-24 01:23:49,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103375467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:49,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:49,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:23:49,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153498729] [2024-11-24 01:23:49,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:49,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:23:49,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:49,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:23:49,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:23:49,971 INFO L87 Difference]: Start difference. First operand 492 states and 626 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:50,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:50,495 INFO L93 Difference]: Finished difference Result 1025 states and 1305 transitions. [2024-11-24 01:23:50,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:23:50,495 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-11-24 01:23:50,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:50,497 INFO L225 Difference]: With dead ends: 1025 [2024-11-24 01:23:50,497 INFO L226 Difference]: Without dead ends: 536 [2024-11-24 01:23:50,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:23:50,499 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 145 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:50,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1035 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:23:50,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-24 01:23:50,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 492. [2024-11-24 01:23:50,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 452 states have (on average 1.2367256637168142) internal successors, (559), 454 states have internal predecessors, (559), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-24 01:23:50,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 625 transitions. [2024-11-24 01:23:50,537 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 625 transitions. Word has length 190 [2024-11-24 01:23:50,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:50,538 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 625 transitions. [2024-11-24 01:23:50,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:50,538 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 625 transitions. [2024-11-24 01:23:50,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 01:23:50,539 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:50,540 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:50,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 01:23:50,540 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:50,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:50,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1410800705, now seen corresponding path program 1 times [2024-11-24 01:23:50,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:50,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823349687] [2024-11-24 01:23:50,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:50,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:52,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:52,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823349687] [2024-11-24 01:23:52,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823349687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:52,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:52,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:23:52,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620296899] [2024-11-24 01:23:52,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:52,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:23:52,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:52,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:23:52,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:23:52,488 INFO L87 Difference]: Start difference. First operand 492 states and 625 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:53,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:53,491 INFO L93 Difference]: Finished difference Result 1108 states and 1403 transitions. [2024-11-24 01:23:53,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:23:53,491 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-11-24 01:23:53,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:53,493 INFO L225 Difference]: With dead ends: 1108 [2024-11-24 01:23:53,494 INFO L226 Difference]: Without dead ends: 619 [2024-11-24 01:23:53,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:23:53,495 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 272 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:53,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 1372 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:23:53,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-11-24 01:23:53,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 564. [2024-11-24 01:23:53,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 513 states have (on average 1.230019493177388) internal successors, (631), 516 states have internal predecessors, (631), 41 states have call successors, (41), 9 states have call predecessors, (41), 9 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-24 01:23:53,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 713 transitions. [2024-11-24 01:23:53,544 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 713 transitions. Word has length 190 [2024-11-24 01:23:53,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:53,544 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 713 transitions. [2024-11-24 01:23:53,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:53,544 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 713 transitions. [2024-11-24 01:23:53,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 01:23:53,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:53,548 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:53,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-24 01:23:53,548 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:53,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:53,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1779725185, now seen corresponding path program 1 times [2024-11-24 01:23:53,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:53,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848760267] [2024-11-24 01:23:53,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:53,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:54,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:54,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:54,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848760267] [2024-11-24 01:23:54,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848760267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:54,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:54,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 01:23:54,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503626899] [2024-11-24 01:23:54,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:54,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:23:54,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:54,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:23:54,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:23:54,933 INFO L87 Difference]: Start difference. First operand 564 states and 713 transitions. Second operand has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:55,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:55,696 INFO L93 Difference]: Finished difference Result 1205 states and 1519 transitions. [2024-11-24 01:23:55,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:23:55,696 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-11-24 01:23:55,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:55,698 INFO L225 Difference]: With dead ends: 1205 [2024-11-24 01:23:55,698 INFO L226 Difference]: Without dead ends: 644 [2024-11-24 01:23:55,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:23:55,699 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 218 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:55,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 962 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:23:55,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-11-24 01:23:55,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 580. [2024-11-24 01:23:55,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 528 states have (on average 1.2272727272727273) internal successors, (648), 531 states have internal predecessors, (648), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-24 01:23:55,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 730 transitions. [2024-11-24 01:23:55,750 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 730 transitions. Word has length 190 [2024-11-24 01:23:55,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:55,750 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 730 transitions. [2024-11-24 01:23:55,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:55,751 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 730 transitions. [2024-11-24 01:23:55,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 01:23:55,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:55,753 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:55,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 01:23:55,753 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:55,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:55,753 INFO L85 PathProgramCache]: Analyzing trace with hash -758026945, now seen corresponding path program 1 times [2024-11-24 01:23:55,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:55,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080506228] [2024-11-24 01:23:55,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:55,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:57,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:57,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:57,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080506228] [2024-11-24 01:23:57,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080506228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:57,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:57,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:23:57,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369152348] [2024-11-24 01:23:57,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:57,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:57,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:57,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:57,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:57,032 INFO L87 Difference]: Start difference. First operand 580 states and 730 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:57,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:57,398 INFO L93 Difference]: Finished difference Result 1161 states and 1458 transitions. [2024-11-24 01:23:57,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:57,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-11-24 01:23:57,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:57,401 INFO L225 Difference]: With dead ends: 1161 [2024-11-24 01:23:57,401 INFO L226 Difference]: Without dead ends: 584 [2024-11-24 01:23:57,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:57,402 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 73 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:57,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 705 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:23:57,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-11-24 01:23:57,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 568. [2024-11-24 01:23:57,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 514 states have (on average 1.2237354085603114) internal successors, (629), 517 states have internal predecessors, (629), 41 states have call successors, (41), 12 states have call predecessors, (41), 12 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-24 01:23:57,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 711 transitions. [2024-11-24 01:23:57,455 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 711 transitions. Word has length 190 [2024-11-24 01:23:57,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:57,455 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 711 transitions. [2024-11-24 01:23:57,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:57,456 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 711 transitions. [2024-11-24 01:23:57,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-24 01:23:57,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:57,457 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:57,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-24 01:23:57,458 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:57,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:57,458 INFO L85 PathProgramCache]: Analyzing trace with hash 980903997, now seen corresponding path program 1 times [2024-11-24 01:23:57,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:57,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252711207] [2024-11-24 01:23:57,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:57,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:58,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:23:58,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:58,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252711207] [2024-11-24 01:23:58,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252711207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:58,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:58,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:23:58,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676047139] [2024-11-24 01:23:58,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:58,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:23:58,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:58,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:23:58,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:23:58,636 INFO L87 Difference]: Start difference. First operand 568 states and 711 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:59,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:59,557 INFO L93 Difference]: Finished difference Result 1638 states and 2042 transitions. [2024-11-24 01:23:59,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:23:59,557 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 191 [2024-11-24 01:23:59,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:59,561 INFO L225 Difference]: With dead ends: 1638 [2024-11-24 01:23:59,562 INFO L226 Difference]: Without dead ends: 1073 [2024-11-24 01:23:59,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:23:59,563 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 100 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:59,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1021 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:23:59,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2024-11-24 01:23:59,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1040. [2024-11-24 01:23:59,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 942 states have (on average 1.208067940552017) internal successors, (1138), 949 states have internal predecessors, (1138), 73 states have call successors, (73), 24 states have call predecessors, (73), 24 states have return successors, (73), 66 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-24 01:23:59,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1284 transitions. [2024-11-24 01:23:59,630 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1284 transitions. Word has length 191 [2024-11-24 01:23:59,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:59,630 INFO L471 AbstractCegarLoop]: Abstraction has 1040 states and 1284 transitions. [2024-11-24 01:23:59,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:23:59,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1284 transitions. [2024-11-24 01:23:59,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-24 01:23:59,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:59,633 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:59,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-24 01:23:59,633 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:59,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:59,634 INFO L85 PathProgramCache]: Analyzing trace with hash -48455301, now seen corresponding path program 1 times [2024-11-24 01:23:59,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:59,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835400220] [2024-11-24 01:23:59,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:59,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:00,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:00,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:00,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835400220] [2024-11-24 01:24:00,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835400220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:00,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:00,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:24:00,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959744830] [2024-11-24 01:24:00,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:00,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:24:00,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:00,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:24:00,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:24:00,706 INFO L87 Difference]: Start difference. First operand 1040 states and 1284 transitions. Second operand has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 8 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:24:01,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:01,300 INFO L93 Difference]: Finished difference Result 2602 states and 3215 transitions. [2024-11-24 01:24:01,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:24:01,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 8 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 191 [2024-11-24 01:24:01,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:01,305 INFO L225 Difference]: With dead ends: 2602 [2024-11-24 01:24:01,306 INFO L226 Difference]: Without dead ends: 1565 [2024-11-24 01:24:01,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:24:01,307 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 142 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:01,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 793 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:24:01,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2024-11-24 01:24:01,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1554. [2024-11-24 01:24:01,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1414 states have (on average 1.2065063649222065) internal successors, (1706), 1425 states have internal predecessors, (1706), 103 states have call successors, (103), 36 states have call predecessors, (103), 36 states have return successors, (103), 92 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-24 01:24:01,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 1912 transitions. [2024-11-24 01:24:01,451 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 1912 transitions. Word has length 191 [2024-11-24 01:24:01,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:01,452 INFO L471 AbstractCegarLoop]: Abstraction has 1554 states and 1912 transitions. [2024-11-24 01:24:01,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 8 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:24:01,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 1912 transitions. [2024-11-24 01:24:01,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-24 01:24:01,455 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:01,455 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:01,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-24 01:24:01,455 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:01,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:01,456 INFO L85 PathProgramCache]: Analyzing trace with hash -441482311, now seen corresponding path program 1 times [2024-11-24 01:24:01,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:01,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82623489] [2024-11-24 01:24:01,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:01,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:02,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:02,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:02,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82623489] [2024-11-24 01:24:02,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82623489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:02,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:02,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:24:02,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139474826] [2024-11-24 01:24:02,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:02,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:24:02,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:02,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:24:02,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:24:02,082 INFO L87 Difference]: Start difference. First operand 1554 states and 1912 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:24:02,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:02,734 INFO L93 Difference]: Finished difference Result 3761 states and 4632 transitions. [2024-11-24 01:24:02,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:24:02,735 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-11-24 01:24:02,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:02,741 INFO L225 Difference]: With dead ends: 3761 [2024-11-24 01:24:02,741 INFO L226 Difference]: Without dead ends: 2210 [2024-11-24 01:24:02,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:24:02,744 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 136 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:02,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1579 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:24:02,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2024-11-24 01:24:02,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 1862. [2024-11-24 01:24:02,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1722 states have (on average 1.2003484320557491) internal successors, (2067), 1733 states have internal predecessors, (2067), 103 states have call successors, (103), 36 states have call predecessors, (103), 36 states have return successors, (103), 92 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-24 01:24:02,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2273 transitions. [2024-11-24 01:24:02,878 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2273 transitions. Word has length 191 [2024-11-24 01:24:02,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:02,878 INFO L471 AbstractCegarLoop]: Abstraction has 1862 states and 2273 transitions. [2024-11-24 01:24:02,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:24:02,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2273 transitions. [2024-11-24 01:24:02,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-24 01:24:02,896 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:02,897 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:02,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 01:24:02,897 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:02,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:02,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1420262599, now seen corresponding path program 1 times [2024-11-24 01:24:02,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:02,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024872607] [2024-11-24 01:24:02,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:02,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:03,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:03,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:03,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024872607] [2024-11-24 01:24:03,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024872607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:03,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:03,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:24:03,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553135888] [2024-11-24 01:24:03,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:03,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:24:03,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:03,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:24:03,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:24:03,851 INFO L87 Difference]: Start difference. First operand 1862 states and 2273 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:24:04,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:04,363 INFO L93 Difference]: Finished difference Result 4689 states and 5700 transitions. [2024-11-24 01:24:04,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:24:04,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 191 [2024-11-24 01:24:04,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:04,370 INFO L225 Difference]: With dead ends: 4689 [2024-11-24 01:24:04,370 INFO L226 Difference]: Without dead ends: 2830 [2024-11-24 01:24:04,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:24:04,372 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 138 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:04,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 593 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:24:04,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2024-11-24 01:24:04,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2821. [2024-11-24 01:24:04,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2821 states, 2586 states have (on average 1.1879350348027842) internal successors, (3072), 2606 states have internal predecessors, (3072), 169 states have call successors, (169), 65 states have call predecessors, (169), 65 states have return successors, (169), 149 states have call predecessors, (169), 169 states have call successors, (169) [2024-11-24 01:24:04,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 3410 transitions. [2024-11-24 01:24:04,528 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 3410 transitions. Word has length 191 [2024-11-24 01:24:04,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:04,528 INFO L471 AbstractCegarLoop]: Abstraction has 2821 states and 3410 transitions. [2024-11-24 01:24:04,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:24:04,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 3410 transitions. [2024-11-24 01:24:04,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-24 01:24:04,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:04,530 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:04,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-24 01:24:04,531 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:04,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:04,531 INFO L85 PathProgramCache]: Analyzing trace with hash 76398493, now seen corresponding path program 1 times [2024-11-24 01:24:04,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:04,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656338278] [2024-11-24 01:24:04,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:04,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:05,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:05,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:05,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656338278] [2024-11-24 01:24:05,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656338278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:05,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:05,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:24:05,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065021230] [2024-11-24 01:24:05,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:05,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:24:05,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:05,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:24:05,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:24:05,539 INFO L87 Difference]: Start difference. First operand 2821 states and 3410 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:24:06,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:06,605 INFO L93 Difference]: Finished difference Result 7404 states and 9027 transitions. [2024-11-24 01:24:06,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:24:06,605 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 191 [2024-11-24 01:24:06,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:06,620 INFO L225 Difference]: With dead ends: 7404 [2024-11-24 01:24:06,621 INFO L226 Difference]: Without dead ends: 4627 [2024-11-24 01:24:06,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:24:06,625 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 361 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:06,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 892 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:24:06,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4627 states. [2024-11-24 01:24:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4627 to 3719. [2024-11-24 01:24:06,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3719 states, 3384 states have (on average 1.16903073286052) internal successors, (3956), 3414 states have internal predecessors, (3956), 239 states have call successors, (239), 95 states have call predecessors, (239), 95 states have return successors, (239), 209 states have call predecessors, (239), 239 states have call successors, (239) [2024-11-24 01:24:06,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3719 states to 3719 states and 4434 transitions. [2024-11-24 01:24:06,870 INFO L78 Accepts]: Start accepts. Automaton has 3719 states and 4434 transitions. Word has length 191 [2024-11-24 01:24:06,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:06,870 INFO L471 AbstractCegarLoop]: Abstraction has 3719 states and 4434 transitions. [2024-11-24 01:24:06,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:24:06,871 INFO L276 IsEmpty]: Start isEmpty. Operand 3719 states and 4434 transitions. [2024-11-24 01:24:06,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-24 01:24:06,874 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:06,875 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:06,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-24 01:24:06,875 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:06,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:06,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1720064963, now seen corresponding path program 1 times [2024-11-24 01:24:06,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:06,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357235044] [2024-11-24 01:24:06,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:06,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:08,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:08,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:08,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357235044] [2024-11-24 01:24:08,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357235044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:08,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:08,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:24:08,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983769563] [2024-11-24 01:24:08,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:08,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:24:08,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:08,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:24:08,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:24:08,573 INFO L87 Difference]: Start difference. First operand 3719 states and 4434 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:24:10,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:10,642 INFO L93 Difference]: Finished difference Result 11088 states and 13150 transitions. [2024-11-24 01:24:10,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:24:10,642 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 192 [2024-11-24 01:24:10,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:10,662 INFO L225 Difference]: With dead ends: 11088 [2024-11-24 01:24:10,662 INFO L226 Difference]: Without dead ends: 7413 [2024-11-24 01:24:10,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:24:10,666 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 387 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:10,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1547 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:24:10,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7413 states. [2024-11-24 01:24:10,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7413 to 3863. [2024-11-24 01:24:10,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3863 states, 3528 states have (on average 1.1689342403628118) internal successors, (4124), 3558 states have internal predecessors, (4124), 239 states have call successors, (239), 95 states have call predecessors, (239), 95 states have return successors, (239), 209 states have call predecessors, (239), 239 states have call successors, (239) [2024-11-24 01:24:10,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3863 states to 3863 states and 4602 transitions. [2024-11-24 01:24:10,936 INFO L78 Accepts]: Start accepts. Automaton has 3863 states and 4602 transitions. Word has length 192 [2024-11-24 01:24:10,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:10,936 INFO L471 AbstractCegarLoop]: Abstraction has 3863 states and 4602 transitions. [2024-11-24 01:24:10,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:24:10,936 INFO L276 IsEmpty]: Start isEmpty. Operand 3863 states and 4602 transitions. [2024-11-24 01:24:10,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-24 01:24:10,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:10,940 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:10,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-24 01:24:10,941 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:10,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:10,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1994824577, now seen corresponding path program 1 times [2024-11-24 01:24:10,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:10,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862875032] [2024-11-24 01:24:10,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:10,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:11,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:11,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:11,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862875032] [2024-11-24 01:24:11,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862875032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:11,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:11,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:24:11,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672260147] [2024-11-24 01:24:11,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:11,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:24:11,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:11,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:24:11,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:24:11,984 INFO L87 Difference]: Start difference. First operand 3863 states and 4602 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:24:12,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:12,519 INFO L93 Difference]: Finished difference Result 7426 states and 8859 transitions. [2024-11-24 01:24:12,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:24:12,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 192 [2024-11-24 01:24:12,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:12,532 INFO L225 Difference]: With dead ends: 7426 [2024-11-24 01:24:12,532 INFO L226 Difference]: Without dead ends: 3607 [2024-11-24 01:24:12,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:24:12,538 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 161 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:12,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 613 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:24:12,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2024-11-24 01:24:12,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 3605. [2024-11-24 01:24:12,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3605 states, 3270 states have (on average 1.1629969418960244) internal successors, (3803), 3300 states have internal predecessors, (3803), 239 states have call successors, (239), 95 states have call predecessors, (239), 95 states have return successors, (239), 209 states have call predecessors, (239), 239 states have call successors, (239) [2024-11-24 01:24:12,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3605 states to 3605 states and 4281 transitions. [2024-11-24 01:24:12,847 INFO L78 Accepts]: Start accepts. Automaton has 3605 states and 4281 transitions. Word has length 192 [2024-11-24 01:24:12,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:12,848 INFO L471 AbstractCegarLoop]: Abstraction has 3605 states and 4281 transitions. [2024-11-24 01:24:12,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:24:12,848 INFO L276 IsEmpty]: Start isEmpty. Operand 3605 states and 4281 transitions. [2024-11-24 01:24:12,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-24 01:24:12,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:12,852 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:12,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-24 01:24:12,852 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:12,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:12,853 INFO L85 PathProgramCache]: Analyzing trace with hash -504322129, now seen corresponding path program 1 times [2024-11-24 01:24:12,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:12,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346591926] [2024-11-24 01:24:12,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:12,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:13,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 42 proven. 24 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:24:13,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:13,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346591926] [2024-11-24 01:24:13,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346591926] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:13,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085360812] [2024-11-24 01:24:13,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:13,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:13,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:13,642 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:13,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:24:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:13,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 01:24:13,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:14,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:14,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:14,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:14,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:14,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:14,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:14,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:14,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:14,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:14,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:14,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2024-11-24 01:24:14,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 62 [2024-11-24 01:24:14,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2024-11-24 01:24:14,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 62 [2024-11-24 01:24:14,543 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:14,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 90 [2024-11-24 01:24:14,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 50 [2024-11-24 01:24:14,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:14,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 75 [2024-11-24 01:24:14,781 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:14,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 75 [2024-11-24 01:24:14,904 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:14,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 129 treesize of output 95 [2024-11-24 01:24:15,484 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:15,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 154 treesize of output 72 [2024-11-24 01:24:15,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 256 proven. 57 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2024-11-24 01:24:15,513 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:16,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:24:16,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085360812] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:24:16,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:24:16,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 7] total 17 [2024-11-24 01:24:16,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055771896] [2024-11-24 01:24:16,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:16,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 01:24:16,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:16,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 01:24:16,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:24:16,068 INFO L87 Difference]: Start difference. First operand 3605 states and 4281 transitions. Second operand has 17 states, 14 states have (on average 11.857142857142858) internal successors, (166), 17 states have internal predecessors, (166), 6 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (63), 3 states have call predecessors, (63), 6 states have call successors, (63) [2024-11-24 01:24:18,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:18,429 INFO L93 Difference]: Finished difference Result 6550 states and 7752 transitions. [2024-11-24 01:24:18,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-24 01:24:18,429 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 11.857142857142858) internal successors, (166), 17 states have internal predecessors, (166), 6 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (63), 3 states have call predecessors, (63), 6 states have call successors, (63) Word has length 193 [2024-11-24 01:24:18,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:18,437 INFO L225 Difference]: With dead ends: 6550 [2024-11-24 01:24:18,437 INFO L226 Difference]: Without dead ends: 2677 [2024-11-24 01:24:18,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 371 SyntacticMatches, 16 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=453, Invalid=1899, Unknown=0, NotChecked=0, Total=2352 [2024-11-24 01:24:18,444 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 340 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:18,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 673 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:24:18,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2024-11-24 01:24:18,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 1504. [2024-11-24 01:24:18,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1362 states have (on average 1.1674008810572687) internal successors, (1590), 1371 states have internal predecessors, (1590), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 92 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-24 01:24:18,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1792 transitions. [2024-11-24 01:24:18,562 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1792 transitions. Word has length 193 [2024-11-24 01:24:18,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:18,563 INFO L471 AbstractCegarLoop]: Abstraction has 1504 states and 1792 transitions. [2024-11-24 01:24:18,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 11.857142857142858) internal successors, (166), 17 states have internal predecessors, (166), 6 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (63), 3 states have call predecessors, (63), 6 states have call successors, (63) [2024-11-24 01:24:18,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1792 transitions. [2024-11-24 01:24:18,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-24 01:24:18,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:18,565 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:18,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 01:24:18,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:18,766 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:18,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:18,767 INFO L85 PathProgramCache]: Analyzing trace with hash -2068829550, now seen corresponding path program 1 times [2024-11-24 01:24:18,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:18,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55709122] [2024-11-24 01:24:18,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:18,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:20,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:20,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55709122] [2024-11-24 01:24:20,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55709122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:20,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:20,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:24:20,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184376420] [2024-11-24 01:24:20,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:20,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:24:20,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:20,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:24:20,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:24:20,255 INFO L87 Difference]: Start difference. First operand 1504 states and 1792 transitions. Second operand has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:24:21,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:21,110 INFO L93 Difference]: Finished difference Result 3674 states and 4364 transitions. [2024-11-24 01:24:21,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:24:21,111 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 196 [2024-11-24 01:24:21,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:21,118 INFO L225 Difference]: With dead ends: 3674 [2024-11-24 01:24:21,118 INFO L226 Difference]: Without dead ends: 2226 [2024-11-24 01:24:21,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:24:21,121 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 199 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:21,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1240 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:24:21,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2024-11-24 01:24:21,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 2223. [2024-11-24 01:24:21,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2223 states, 2004 states have (on average 1.158183632734531) internal successors, (2321), 2019 states have internal predecessors, (2321), 155 states have call successors, (155), 63 states have call predecessors, (155), 63 states have return successors, (155), 140 states have call predecessors, (155), 155 states have call successors, (155) [2024-11-24 01:24:21,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2223 states to 2223 states and 2631 transitions. [2024-11-24 01:24:21,382 INFO L78 Accepts]: Start accepts. Automaton has 2223 states and 2631 transitions. Word has length 196 [2024-11-24 01:24:21,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:21,382 INFO L471 AbstractCegarLoop]: Abstraction has 2223 states and 2631 transitions. [2024-11-24 01:24:21,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:24:21,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2223 states and 2631 transitions. [2024-11-24 01:24:21,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-24 01:24:21,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:21,386 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:21,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-24 01:24:21,386 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:21,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:21,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1833110736, now seen corresponding path program 1 times [2024-11-24 01:24:21,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:21,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321334498] [2024-11-24 01:24:21,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:21,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:22,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:22,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:22,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321334498] [2024-11-24 01:24:22,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321334498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:22,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:22,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:24:22,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581944377] [2024-11-24 01:24:22,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:22,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:24:22,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:22,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:24:22,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:24:22,877 INFO L87 Difference]: Start difference. First operand 2223 states and 2631 transitions. Second operand has 9 states, 7 states have (on average 12.0) internal successors, (84), 9 states have internal predecessors, (84), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-24 01:24:23,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:23,688 INFO L93 Difference]: Finished difference Result 4538 states and 5377 transitions. [2024-11-24 01:24:23,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:24:23,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 12.0) internal successors, (84), 9 states have internal predecessors, (84), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) Word has length 196 [2024-11-24 01:24:23,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:23,696 INFO L225 Difference]: With dead ends: 4538 [2024-11-24 01:24:23,696 INFO L226 Difference]: Without dead ends: 2371 [2024-11-24 01:24:23,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:24:23,700 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 133 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:23,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1015 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:24:23,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2024-11-24 01:24:23,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2218. [2024-11-24 01:24:23,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2218 states, 1998 states have (on average 1.157157157157157) internal successors, (2312), 2013 states have internal predecessors, (2312), 155 states have call successors, (155), 64 states have call predecessors, (155), 64 states have return successors, (155), 140 states have call predecessors, (155), 155 states have call successors, (155) [2024-11-24 01:24:24,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2218 states to 2218 states and 2622 transitions. [2024-11-24 01:24:24,003 INFO L78 Accepts]: Start accepts. Automaton has 2218 states and 2622 transitions. Word has length 196 [2024-11-24 01:24:24,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:24,003 INFO L471 AbstractCegarLoop]: Abstraction has 2218 states and 2622 transitions. [2024-11-24 01:24:24,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 12.0) internal successors, (84), 9 states have internal predecessors, (84), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-24 01:24:24,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2218 states and 2622 transitions. [2024-11-24 01:24:24,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-24 01:24:24,006 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:24,006 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:24,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-24 01:24:24,007 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:24,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:24,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2091276174, now seen corresponding path program 1 times [2024-11-24 01:24:24,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:24,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359463434] [2024-11-24 01:24:24,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:24,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:24,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:24,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:24,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359463434] [2024-11-24 01:24:24,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359463434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:24,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:24,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:24:24,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505924794] [2024-11-24 01:24:24,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:24,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:24:24,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:24,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:24:24,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:24:24,980 INFO L87 Difference]: Start difference. First operand 2218 states and 2622 transitions. Second operand has 7 states, 5 states have (on average 16.8) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-24 01:24:25,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:25,728 INFO L93 Difference]: Finished difference Result 4376 states and 5170 transitions. [2024-11-24 01:24:25,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:24:25,729 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 16.8) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) Word has length 196 [2024-11-24 01:24:25,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:25,735 INFO L225 Difference]: With dead ends: 4376 [2024-11-24 01:24:25,735 INFO L226 Difference]: Without dead ends: 2214 [2024-11-24 01:24:25,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:24:25,738 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 73 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:25,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 668 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:24:25,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2024-11-24 01:24:25,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2074. [2024-11-24 01:24:25,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2074 states, 1887 states have (on average 1.1505034446210918) internal successors, (2171), 1899 states have internal predecessors, (2171), 131 states have call successors, (131), 55 states have call predecessors, (131), 55 states have return successors, (131), 119 states have call predecessors, (131), 131 states have call successors, (131) [2024-11-24 01:24:25,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 2433 transitions. [2024-11-24 01:24:25,999 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 2433 transitions. Word has length 196 [2024-11-24 01:24:26,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:26,000 INFO L471 AbstractCegarLoop]: Abstraction has 2074 states and 2433 transitions. [2024-11-24 01:24:26,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 16.8) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-24 01:24:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 2433 transitions. [2024-11-24 01:24:26,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-24 01:24:26,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:26,003 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:26,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-24 01:24:26,003 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:26,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:26,004 INFO L85 PathProgramCache]: Analyzing trace with hash -593979319, now seen corresponding path program 1 times [2024-11-24 01:24:26,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:26,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828703241] [2024-11-24 01:24:26,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:26,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:26,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 15 proven. 51 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:24:26,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:26,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828703241] [2024-11-24 01:24:26,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828703241] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:26,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482676680] [2024-11-24 01:24:26,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:26,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:26,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:26,801 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:26,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:24:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:27,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-24 01:24:27,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:27,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:27,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:27,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:27,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:27,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:27,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:27,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:27,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:27,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:27,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2024-11-24 01:24:27,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 62 [2024-11-24 01:24:27,555 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:27,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2024-11-24 01:24:27,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 62 [2024-11-24 01:24:27,627 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:27,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 90 [2024-11-24 01:24:27,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 50 [2024-11-24 01:24:27,712 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:27,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 75 [2024-11-24 01:24:27,775 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:27,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 127 treesize of output 93 [2024-11-24 01:24:27,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:27,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 144 treesize of output 116 [2024-11-24 01:24:28,552 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:28,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 169 treesize of output 75 [2024-11-24 01:24:28,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 372 proven. 51 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2024-11-24 01:24:28,570 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:28,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 15 proven. 51 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:24:28,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482676680] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:24:28,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:24:28,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 7] total 15 [2024-11-24 01:24:28,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814960514] [2024-11-24 01:24:28,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:28,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:24:28,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:28,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:24:28,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:24:28,995 INFO L87 Difference]: Start difference. First operand 2074 states and 2433 transitions. Second operand has 15 states, 13 states have (on average 11.23076923076923) internal successors, (146), 15 states have internal predecessors, (146), 4 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (41), 2 states have call predecessors, (41), 4 states have call successors, (41) [2024-11-24 01:24:30,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:30,668 INFO L93 Difference]: Finished difference Result 4488 states and 5200 transitions. [2024-11-24 01:24:30,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-24 01:24:30,668 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 11.23076923076923) internal successors, (146), 15 states have internal predecessors, (146), 4 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (41), 2 states have call predecessors, (41), 4 states have call successors, (41) Word has length 196 [2024-11-24 01:24:30,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:30,674 INFO L225 Difference]: With dead ends: 4488 [2024-11-24 01:24:30,675 INFO L226 Difference]: Without dead ends: 2470 [2024-11-24 01:24:30,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 380 SyntacticMatches, 15 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=267, Invalid=789, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:24:30,678 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 394 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:30,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 482 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:24:30,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2024-11-24 01:24:30,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 1240. [2024-11-24 01:24:30,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 1133 states have (on average 1.1412180052956753) internal successors, (1293), 1137 states have internal predecessors, (1293), 75 states have call successors, (75), 31 states have call predecessors, (75), 31 states have return successors, (75), 71 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-24 01:24:30,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1443 transitions. [2024-11-24 01:24:30,838 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1443 transitions. Word has length 196 [2024-11-24 01:24:30,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:30,838 INFO L471 AbstractCegarLoop]: Abstraction has 1240 states and 1443 transitions. [2024-11-24 01:24:30,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 11.23076923076923) internal successors, (146), 15 states have internal predecessors, (146), 4 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (41), 2 states have call predecessors, (41), 4 states have call successors, (41) [2024-11-24 01:24:30,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1443 transitions. [2024-11-24 01:24:30,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-24 01:24:30,840 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:30,840 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:30,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:24:31,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-24 01:24:31,044 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:31,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:31,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1767884553, now seen corresponding path program 1 times [2024-11-24 01:24:31,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:31,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773395137] [2024-11-24 01:24:31,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:31,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:32,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 36 proven. 30 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:24:32,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:32,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773395137] [2024-11-24 01:24:32,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773395137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:32,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884035462] [2024-11-24 01:24:32,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:32,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:32,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:32,081 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:32,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:24:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:32,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-24 01:24:32,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:32,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 01:24:32,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 01:24:32,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 01:24:32,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 01:24:32,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 01:24:32,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2024-11-24 01:24:32,778 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:32,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 28 [2024-11-24 01:24:32,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 493 proven. 93 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2024-11-24 01:24:32,788 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:33,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 36 proven. 30 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:24:33,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884035462] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:24:33,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:24:33,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 8] total 14 [2024-11-24 01:24:33,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706299028] [2024-11-24 01:24:33,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:33,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:24:33,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:33,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:24:33,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:24:33,109 INFO L87 Difference]: Start difference. First operand 1240 states and 1443 transitions. Second operand has 14 states, 11 states have (on average 8.909090909090908) internal successors, (98), 14 states have internal predecessors, (98), 5 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 5 states have call successors, (36) [2024-11-24 01:24:34,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:34,393 INFO L93 Difference]: Finished difference Result 2395 states and 2774 transitions. [2024-11-24 01:24:34,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 01:24:34,394 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 8.909090909090908) internal successors, (98), 14 states have internal predecessors, (98), 5 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 5 states have call successors, (36) Word has length 196 [2024-11-24 01:24:34,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:34,398 INFO L225 Difference]: With dead ends: 2395 [2024-11-24 01:24:34,398 INFO L226 Difference]: Without dead ends: 1211 [2024-11-24 01:24:34,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 387 SyntacticMatches, 9 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2024-11-24 01:24:34,400 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 666 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:34,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 589 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:24:34,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2024-11-24 01:24:34,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 988. [2024-11-24 01:24:34,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 878 states have (on average 1.132118451025057) internal successors, (994), 882 states have internal predecessors, (994), 75 states have call successors, (75), 34 states have call predecessors, (75), 34 states have return successors, (75), 71 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-24 01:24:34,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1144 transitions. [2024-11-24 01:24:34,561 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1144 transitions. Word has length 196 [2024-11-24 01:24:34,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:34,562 INFO L471 AbstractCegarLoop]: Abstraction has 988 states and 1144 transitions. [2024-11-24 01:24:34,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 8.909090909090908) internal successors, (98), 14 states have internal predecessors, (98), 5 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 5 states have call successors, (36) [2024-11-24 01:24:34,562 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1144 transitions. [2024-11-24 01:24:34,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-24 01:24:34,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:34,564 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:34,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 01:24:34,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-24 01:24:34,765 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:34,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:34,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1444101200, now seen corresponding path program 1 times [2024-11-24 01:24:34,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:34,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938470091] [2024-11-24 01:24:34,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:34,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:34,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:34,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938470091] [2024-11-24 01:24:34,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938470091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:34,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:34,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:24:34,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978671295] [2024-11-24 01:24:34,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:34,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:24:34,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:34,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:24:34,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:24:34,869 INFO L87 Difference]: Start difference. First operand 988 states and 1144 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:24:34,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:34,971 INFO L93 Difference]: Finished difference Result 1767 states and 2051 transitions. [2024-11-24 01:24:34,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:24:34,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 196 [2024-11-24 01:24:34,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:34,976 INFO L225 Difference]: With dead ends: 1767 [2024-11-24 01:24:34,976 INFO L226 Difference]: Without dead ends: 839 [2024-11-24 01:24:34,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:24:34,978 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 1 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:34,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 486 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:24:34,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-11-24 01:24:35,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 839. [2024-11-24 01:24:35,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 729 states have (on average 1.1248285322359397) internal successors, (820), 733 states have internal predecessors, (820), 75 states have call successors, (75), 34 states have call predecessors, (75), 34 states have return successors, (75), 71 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-24 01:24:35,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 970 transitions. [2024-11-24 01:24:35,134 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 970 transitions. Word has length 196 [2024-11-24 01:24:35,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:35,135 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 970 transitions. [2024-11-24 01:24:35,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:24:35,135 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 970 transitions. [2024-11-24 01:24:35,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-24 01:24:35,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:35,137 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:35,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-24 01:24:35,137 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:35,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:35,137 INFO L85 PathProgramCache]: Analyzing trace with hash -140625975, now seen corresponding path program 1 times [2024-11-24 01:24:35,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:35,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615202781] [2024-11-24 01:24:35,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:35,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:36,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 21 proven. 45 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:24:36,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:36,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615202781] [2024-11-24 01:24:36,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615202781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:36,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027653359] [2024-11-24 01:24:36,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:36,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:36,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:36,015 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:36,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:24:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:36,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-24 01:24:36,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:36,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:36,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:36,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:36,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:36,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:36,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:36,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:36,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:36,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2024-11-24 01:24:36,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 62 [2024-11-24 01:24:36,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2024-11-24 01:24:36,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 62 [2024-11-24 01:24:36,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:36,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 90 [2024-11-24 01:24:36,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 50 [2024-11-24 01:24:36,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:36,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 75 [2024-11-24 01:24:36,932 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:36,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 127 treesize of output 93 [2024-11-24 01:24:37,095 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:37,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 144 treesize of output 116 [2024-11-24 01:24:37,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:37,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 169 treesize of output 75 [2024-11-24 01:24:37,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 456 proven. 45 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2024-11-24 01:24:37,823 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:38,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 21 proven. 45 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:24:38,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027653359] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:24:38,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:24:38,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 9] total 19 [2024-11-24 01:24:38,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550612800] [2024-11-24 01:24:38,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:38,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 01:24:38,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:38,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 01:24:38,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:24:38,257 INFO L87 Difference]: Start difference. First operand 839 states and 970 transitions. Second operand has 19 states, 17 states have (on average 8.764705882352942) internal successors, (149), 19 states have internal predecessors, (149), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-24 01:24:40,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:40,173 INFO L93 Difference]: Finished difference Result 1735 states and 2001 transitions. [2024-11-24 01:24:40,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-24 01:24:40,174 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 8.764705882352942) internal successors, (149), 19 states have internal predecessors, (149), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) Word has length 196 [2024-11-24 01:24:40,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:40,179 INFO L225 Difference]: With dead ends: 1735 [2024-11-24 01:24:40,179 INFO L226 Difference]: Without dead ends: 956 [2024-11-24 01:24:40,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 378 SyntacticMatches, 14 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=355, Invalid=1625, Unknown=0, NotChecked=0, Total=1980 [2024-11-24 01:24:40,181 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 484 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:40,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 678 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:24:40,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-24 01:24:40,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 556. [2024-11-24 01:24:40,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 464 states have (on average 1.1163793103448276) internal successors, (518), 467 states have internal predecessors, (518), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 60 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-24 01:24:40,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 644 transitions. [2024-11-24 01:24:40,315 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 644 transitions. Word has length 196 [2024-11-24 01:24:40,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:40,316 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 644 transitions. [2024-11-24 01:24:40,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 8.764705882352942) internal successors, (149), 19 states have internal predecessors, (149), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-24 01:24:40,316 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 644 transitions. [2024-11-24 01:24:40,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-24 01:24:40,318 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:40,318 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:40,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 01:24:40,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-24 01:24:40,518 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:40,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:40,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1241284343, now seen corresponding path program 1 times [2024-11-24 01:24:40,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:40,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949092928] [2024-11-24 01:24:40,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:40,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:41,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:24:41,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:41,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949092928] [2024-11-24 01:24:41,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949092928] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:41,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939150127] [2024-11-24 01:24:41,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:41,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:41,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:41,727 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:41,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 01:24:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:42,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-24 01:24:42,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:42,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 01:24:42,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:42,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:42,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:42,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:42,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:42,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:42,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:24:42,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-24 01:24:42,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2024-11-24 01:24:42,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:42,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 79 [2024-11-24 01:24:42,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 39 [2024-11-24 01:24:42,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:42,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 53 [2024-11-24 01:24:42,562 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:42,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 71 [2024-11-24 01:24:42,634 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:42,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 32 [2024-11-24 01:24:42,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 508 proven. 39 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-11-24 01:24:42,650 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:43,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:24:43,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939150127] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:24:43,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:24:43,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 9] total 20 [2024-11-24 01:24:43,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424434343] [2024-11-24 01:24:43,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:43,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 01:24:43,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:43,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 01:24:43,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:24:43,007 INFO L87 Difference]: Start difference. First operand 556 states and 644 transitions. Second operand has 20 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 20 states have internal predecessors, (118), 5 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 2 states have call predecessors, (38), 5 states have call successors, (38) [2024-11-24 01:24:44,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:44,203 INFO L93 Difference]: Finished difference Result 1258 states and 1456 transitions. [2024-11-24 01:24:44,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 01:24:44,204 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 20 states have internal predecessors, (118), 5 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 2 states have call predecessors, (38), 5 states have call successors, (38) Word has length 196 [2024-11-24 01:24:44,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:44,208 INFO L225 Difference]: With dead ends: 1258 [2024-11-24 01:24:44,208 INFO L226 Difference]: Without dead ends: 762 [2024-11-24 01:24:44,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 386 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=296, Invalid=1036, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 01:24:44,210 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 309 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:44,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 454 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:24:44,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2024-11-24 01:24:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 538. [2024-11-24 01:24:44,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 446 states have (on average 1.1076233183856503) internal successors, (494), 449 states have internal predecessors, (494), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 60 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-24 01:24:44,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 620 transitions. [2024-11-24 01:24:44,314 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 620 transitions. Word has length 196 [2024-11-24 01:24:44,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:44,314 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 620 transitions. [2024-11-24 01:24:44,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 20 states have internal predecessors, (118), 5 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 2 states have call predecessors, (38), 5 states have call successors, (38) [2024-11-24 01:24:44,314 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 620 transitions. [2024-11-24 01:24:44,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-24 01:24:44,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:44,315 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:44,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 01:24:44,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:44,515 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:44,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:44,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1511299529, now seen corresponding path program 1 times [2024-11-24 01:24:44,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:44,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66157175] [2024-11-24 01:24:44,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:44,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:45,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 30 proven. 36 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:24:45,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:45,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66157175] [2024-11-24 01:24:45,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66157175] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:45,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579602508] [2024-11-24 01:24:45,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:45,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:45,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:45,114 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:45,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 01:24:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:45,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-24 01:24:45,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:45,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 01:24:45,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 01:24:45,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 01:24:45,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 01:24:45,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 01:24:45,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 01:24:45,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 01:24:45,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 38 [2024-11-24 01:24:45,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 48 [2024-11-24 01:24:45,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 60 [2024-11-24 01:24:45,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 522 proven. 36 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-24 01:24:45,805 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 30 proven. 36 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:24:46,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579602508] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:24:46,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:24:46,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-24 01:24:46,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123667220] [2024-11-24 01:24:46,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:46,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:24:46,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:46,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:24:46,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:24:46,089 INFO L87 Difference]: Start difference. First operand 538 states and 620 transitions. Second operand has 11 states, 8 states have (on average 11.875) internal successors, (95), 11 states have internal predecessors, (95), 5 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (37), 2 states have call predecessors, (37), 5 states have call successors, (37) [2024-11-24 01:24:46,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:46,761 INFO L93 Difference]: Finished difference Result 772 states and 882 transitions. [2024-11-24 01:24:46,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:24:46,762 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 11.875) internal successors, (95), 11 states have internal predecessors, (95), 5 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (37), 2 states have call predecessors, (37), 5 states have call successors, (37) Word has length 196 [2024-11-24 01:24:46,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:46,764 INFO L225 Difference]: With dead ends: 772 [2024-11-24 01:24:46,764 INFO L226 Difference]: Without dead ends: 294 [2024-11-24 01:24:46,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 387 SyntacticMatches, 9 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:24:46,765 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 225 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:46,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 310 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:24:46,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-24 01:24:46,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 272. [2024-11-24 01:24:46,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 215 states have (on average 1.0744186046511628) internal successors, (231), 216 states have internal predecessors, (231), 37 states have call successors, (37), 19 states have call predecessors, (37), 19 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-24 01:24:46,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 305 transitions. [2024-11-24 01:24:46,818 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 305 transitions. Word has length 196 [2024-11-24 01:24:46,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:46,819 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 305 transitions. [2024-11-24 01:24:46,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 11.875) internal successors, (95), 11 states have internal predecessors, (95), 5 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (37), 2 states have call predecessors, (37), 5 states have call successors, (37) [2024-11-24 01:24:46,819 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 305 transitions. [2024-11-24 01:24:46,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-24 01:24:46,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:46,820 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:46,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-24 01:24:47,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:47,021 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:47,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:47,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1783592572, now seen corresponding path program 1 times [2024-11-24 01:24:47,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:47,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453514445] [2024-11-24 01:24:47,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:47,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:47,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:47,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:47,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453514445] [2024-11-24 01:24:47,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453514445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:47,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:47,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:24:47,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637607300] [2024-11-24 01:24:47,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:47,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:24:47,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:47,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:24:47,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:24:47,666 INFO L87 Difference]: Start difference. First operand 272 states and 305 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:24:48,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:48,007 INFO L93 Difference]: Finished difference Result 480 states and 540 transitions. [2024-11-24 01:24:48,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:24:48,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 198 [2024-11-24 01:24:48,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:48,009 INFO L225 Difference]: With dead ends: 480 [2024-11-24 01:24:48,010 INFO L226 Difference]: Without dead ends: 272 [2024-11-24 01:24:48,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:24:48,010 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 170 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:48,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 212 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:24:48,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-24 01:24:48,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-11-24 01:24:48,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 215 states have (on average 1.069767441860465) internal successors, (230), 216 states have internal predecessors, (230), 37 states have call successors, (37), 19 states have call predecessors, (37), 19 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-24 01:24:48,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 304 transitions. [2024-11-24 01:24:48,079 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 304 transitions. Word has length 198 [2024-11-24 01:24:48,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:48,080 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 304 transitions. [2024-11-24 01:24:48,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:24:48,080 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 304 transitions. [2024-11-24 01:24:48,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-24 01:24:48,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:48,080 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:48,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-24 01:24:48,081 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:48,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:48,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1212443285, now seen corresponding path program 1 times [2024-11-24 01:24:48,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:48,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432423023] [2024-11-24 01:24:48,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:48,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:48,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:48,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:48,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432423023] [2024-11-24 01:24:48,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432423023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:48,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:48,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:24:48,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784371949] [2024-11-24 01:24:48,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:48,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:24:48,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:48,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:24:48,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:24:48,610 INFO L87 Difference]: Start difference. First operand 272 states and 304 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:24:48,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:48,979 INFO L93 Difference]: Finished difference Result 644 states and 718 transitions. [2024-11-24 01:24:48,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:24:48,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 200 [2024-11-24 01:24:48,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:48,982 INFO L225 Difference]: With dead ends: 644 [2024-11-24 01:24:48,982 INFO L226 Difference]: Without dead ends: 436 [2024-11-24 01:24:48,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:24:48,983 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 74 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:48,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 347 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:24:48,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-24 01:24:49,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 433. [2024-11-24 01:24:49,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 349 states have (on average 1.0744985673352436) internal successors, (375), 351 states have internal predecessors, (375), 53 states have call successors, (53), 30 states have call predecessors, (53), 30 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-24 01:24:49,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 481 transitions. [2024-11-24 01:24:49,063 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 481 transitions. Word has length 200 [2024-11-24 01:24:49,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:49,063 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 481 transitions. [2024-11-24 01:24:49,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:24:49,064 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 481 transitions. [2024-11-24 01:24:49,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-24 01:24:49,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:49,064 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:49,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-24 01:24:49,065 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:49,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:49,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1892501655, now seen corresponding path program 1 times [2024-11-24 01:24:49,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:49,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488478275] [2024-11-24 01:24:49,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:49,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:50,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 48 proven. 18 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:24:50,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:50,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488478275] [2024-11-24 01:24:50,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488478275] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:50,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629766667] [2024-11-24 01:24:50,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:50,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:50,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:50,965 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:50,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 01:24:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:51,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-24 01:24:51,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:51,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 55 [2024-11-24 01:24:51,498 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:51,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 70 [2024-11-24 01:24:51,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:51,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 104 treesize of output 91 [2024-11-24 01:24:52,381 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:52,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 118 treesize of output 48 [2024-11-24 01:24:52,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:24:52,467 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:53,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:53,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629766667] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:53,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:24:53,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14, 13] total 22 [2024-11-24 01:24:53,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496085259] [2024-11-24 01:24:53,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:53,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:24:53,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:53,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:24:53,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:24:53,090 INFO L87 Difference]: Start difference. First operand 433 states and 481 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:24:54,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:54,005 INFO L93 Difference]: Finished difference Result 817 states and 906 transitions. [2024-11-24 01:24:54,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:24:54,006 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 200 [2024-11-24 01:24:54,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:54,008 INFO L225 Difference]: With dead ends: 817 [2024-11-24 01:24:54,009 INFO L226 Difference]: Without dead ends: 448 [2024-11-24 01:24:54,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 401 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=621, Unknown=0, NotChecked=0, Total=702 [2024-11-24 01:24:54,009 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 72 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:54,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 1068 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:24:54,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-24 01:24:54,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 439. [2024-11-24 01:24:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 353 states have (on average 1.0708215297450425) internal successors, (378), 355 states have internal predecessors, (378), 54 states have call successors, (54), 31 states have call predecessors, (54), 31 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-24 01:24:54,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 486 transitions. [2024-11-24 01:24:54,099 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 486 transitions. Word has length 200 [2024-11-24 01:24:54,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:54,099 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 486 transitions. [2024-11-24 01:24:54,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:24:54,100 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 486 transitions. [2024-11-24 01:24:54,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-24 01:24:54,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:54,101 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:54,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-24 01:24:54,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-24 01:24:54,302 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:54,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:54,302 INFO L85 PathProgramCache]: Analyzing trace with hash -964296791, now seen corresponding path program 1 times [2024-11-24 01:24:54,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:54,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030644202] [2024-11-24 01:24:54,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:54,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:55,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:55,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030644202] [2024-11-24 01:24:55,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030644202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:55,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:55,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:24:55,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56229580] [2024-11-24 01:24:55,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:55,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:24:55,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:55,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:24:55,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:24:55,088 INFO L87 Difference]: Start difference. First operand 439 states and 486 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:24:55,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:55,705 INFO L93 Difference]: Finished difference Result 867 states and 964 transitions. [2024-11-24 01:24:55,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:24:55,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 200 [2024-11-24 01:24:55,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:55,708 INFO L225 Difference]: With dead ends: 867 [2024-11-24 01:24:55,709 INFO L226 Difference]: Without dead ends: 498 [2024-11-24 01:24:55,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:24:55,710 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 113 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:55,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1670 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:24:55,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-24 01:24:55,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 461. [2024-11-24 01:24:55,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 367 states have (on average 1.0681198910081744) internal successors, (392), 369 states have internal predecessors, (392), 61 states have call successors, (61), 32 states have call predecessors, (61), 32 states have return successors, (61), 59 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 01:24:55,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 514 transitions. [2024-11-24 01:24:55,853 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 514 transitions. Word has length 200 [2024-11-24 01:24:55,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:55,853 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 514 transitions. [2024-11-24 01:24:55,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:24:55,853 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 514 transitions. [2024-11-24 01:24:55,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-24 01:24:55,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:55,855 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:55,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-24 01:24:55,855 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:55,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:55,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1644355161, now seen corresponding path program 1 times [2024-11-24 01:24:55,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:55,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530147753] [2024-11-24 01:24:55,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:55,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:56,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:56,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:56,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530147753] [2024-11-24 01:24:56,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530147753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:56,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:56,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:24:56,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31586790] [2024-11-24 01:24:56,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:56,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:24:56,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:56,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:24:56,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:24:56,659 INFO L87 Difference]: Start difference. First operand 461 states and 514 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:24:57,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:57,159 INFO L93 Difference]: Finished difference Result 854 states and 951 transitions. [2024-11-24 01:24:57,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:24:57,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 200 [2024-11-24 01:24:57,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:57,162 INFO L225 Difference]: With dead ends: 854 [2024-11-24 01:24:57,162 INFO L226 Difference]: Without dead ends: 463 [2024-11-24 01:24:57,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:24:57,163 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 71 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:57,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 734 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:24:57,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-24 01:24:57,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 354. [2024-11-24 01:24:57,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 294 states have (on average 1.0680272108843538) internal successors, (314), 295 states have internal predecessors, (314), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 01:24:57,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 390 transitions. [2024-11-24 01:24:57,259 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 390 transitions. Word has length 200 [2024-11-24 01:24:57,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:57,259 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 390 transitions. [2024-11-24 01:24:57,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:24:57,260 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 390 transitions. [2024-11-24 01:24:57,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-24 01:24:57,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:57,261 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:57,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-24 01:24:57,261 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:57,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:57,262 INFO L85 PathProgramCache]: Analyzing trace with hash 879426107, now seen corresponding path program 1 times [2024-11-24 01:24:57,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:57,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052035093] [2024-11-24 01:24:57,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:57,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:58,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:24:58,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:58,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052035093] [2024-11-24 01:24:58,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052035093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:58,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:58,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:24:58,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192521912] [2024-11-24 01:24:58,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:58,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:24:58,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:58,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:24:58,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:24:58,098 INFO L87 Difference]: Start difference. First operand 354 states and 390 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:24:58,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:58,957 INFO L93 Difference]: Finished difference Result 568 states and 626 transitions. [2024-11-24 01:24:58,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:24:58,957 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 202 [2024-11-24 01:24:58,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:58,959 INFO L225 Difference]: With dead ends: 568 [2024-11-24 01:24:58,959 INFO L226 Difference]: Without dead ends: 566 [2024-11-24 01:24:58,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:24:58,960 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 144 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:58,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1222 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:24:58,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-24 01:24:59,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 415. [2024-11-24 01:24:59,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 355 states have (on average 1.064788732394366) internal successors, (378), 356 states have internal predecessors, (378), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 01:24:59,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 454 transitions. [2024-11-24 01:24:59,034 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 454 transitions. Word has length 202 [2024-11-24 01:24:59,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:59,034 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 454 transitions. [2024-11-24 01:24:59,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:24:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 454 transitions. [2024-11-24 01:24:59,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-24 01:24:59,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:59,035 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:59,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-24 01:24:59,035 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:59,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:59,036 INFO L85 PathProgramCache]: Analyzing trace with hash -141409857, now seen corresponding path program 1 times [2024-11-24 01:24:59,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:59,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088649965] [2024-11-24 01:24:59,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:59,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:00,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:25:00,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:00,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088649965] [2024-11-24 01:25:00,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088649965] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:25:00,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082446205] [2024-11-24 01:25:00,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:00,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:00,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:00,572 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:25:00,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 01:25:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:01,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-24 01:25:01,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:25:01,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:25:01,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:25:01,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:25:01,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:25:01,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:25:01,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:25:01,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:25:01,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2024-11-24 01:25:01,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 62 [2024-11-24 01:25:01,303 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:25:01,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2024-11-24 01:25:01,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 62 [2024-11-24 01:25:01,376 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:25:01,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 90 [2024-11-24 01:25:01,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 50 [2024-11-24 01:25:01,555 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:25:01,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 75 [2024-11-24 01:25:01,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:25:01,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 84 [2024-11-24 01:25:01,875 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:25:01,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 138 treesize of output 87 [2024-11-24 01:25:01,955 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:25:01,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 132 treesize of output 54 [2024-11-24 01:25:01,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 508 proven. 39 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-11-24 01:25:01,979 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:25:02,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 01:25:02,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082446205] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:25:02,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:25:02,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8] total 16 [2024-11-24 01:25:02,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000969990] [2024-11-24 01:25:02,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:25:02,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:25:02,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:02,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:25:02,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:25:02,377 INFO L87 Difference]: Start difference. First operand 415 states and 454 transitions. Second operand has 16 states, 13 states have (on average 9.615384615384615) internal successors, (125), 16 states have internal predecessors, (125), 5 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 2 states have call predecessors, (38), 5 states have call successors, (38) [2024-11-24 01:25:04,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:04,356 INFO L93 Difference]: Finished difference Result 929 states and 1016 transitions. [2024-11-24 01:25:04,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-24 01:25:04,357 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 9.615384615384615) internal successors, (125), 16 states have internal predecessors, (125), 5 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 2 states have call predecessors, (38), 5 states have call successors, (38) Word has length 204 [2024-11-24 01:25:04,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:04,359 INFO L225 Difference]: With dead ends: 929 [2024-11-24 01:25:04,359 INFO L226 Difference]: Without dead ends: 584 [2024-11-24 01:25:04,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 398 SyntacticMatches, 16 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=334, Invalid=1226, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 01:25:04,360 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 168 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:04,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 735 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:25:04,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-11-24 01:25:04,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 310. [2024-11-24 01:25:04,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 250 states have (on average 1.048) internal successors, (262), 251 states have internal predecessors, (262), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 01:25:04,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 338 transitions. [2024-11-24 01:25:04,461 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 338 transitions. Word has length 204 [2024-11-24 01:25:04,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:04,461 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 338 transitions. [2024-11-24 01:25:04,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 9.615384615384615) internal successors, (125), 16 states have internal predecessors, (125), 5 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 2 states have call predecessors, (38), 5 states have call successors, (38) [2024-11-24 01:25:04,462 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 338 transitions. [2024-11-24 01:25:04,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-24 01:25:04,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:04,463 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:25:04,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-24 01:25:04,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ea0c41-981c-40c7-83ce-18527491a35a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:04,663 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:04,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:04,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1769694592, now seen corresponding path program 1 times [2024-11-24 01:25:04,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:04,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201104493] [2024-11-24 01:25:04,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:04,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:06,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:25:06,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:06,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201104493] [2024-11-24 01:25:06,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201104493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:06,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:06,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:25:06,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392888591] [2024-11-24 01:25:06,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:06,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:25:06,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:06,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:25:06,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:25:06,478 INFO L87 Difference]: Start difference. First operand 310 states and 338 transitions. Second operand has 14 states, 13 states have (on average 7.076923076923077) internal successors, (92), 14 states have internal predecessors, (92), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:25:07,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:07,309 INFO L93 Difference]: Finished difference Result 317 states and 345 transitions. [2024-11-24 01:25:07,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:25:07,310 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.076923076923077) internal successors, (92), 14 states have internal predecessors, (92), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 204 [2024-11-24 01:25:07,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:07,312 INFO L225 Difference]: With dead ends: 317 [2024-11-24 01:25:07,312 INFO L226 Difference]: Without dead ends: 315 [2024-11-24 01:25:07,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:25:07,313 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 129 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:07,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 972 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:25:07,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-24 01:25:07,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 311. [2024-11-24 01:25:07,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 251 states have (on average 1.047808764940239) internal successors, (263), 252 states have internal predecessors, (263), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 01:25:07,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 339 transitions. [2024-11-24 01:25:07,368 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 339 transitions. Word has length 204 [2024-11-24 01:25:07,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:07,369 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 339 transitions. [2024-11-24 01:25:07,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.076923076923077) internal successors, (92), 14 states have internal predecessors, (92), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:25:07,369 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 339 transitions. [2024-11-24 01:25:07,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-24 01:25:07,369 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:07,369 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:25:07,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-24 01:25:07,370 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:07,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:07,370 INFO L85 PathProgramCache]: Analyzing trace with hash -750265342, now seen corresponding path program 1 times [2024-11-24 01:25:07,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:07,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520421263] [2024-11-24 01:25:07,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:07,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:07,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 01:25:07,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:07,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520421263] [2024-11-24 01:25:07,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520421263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:07,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:07,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:25:07,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720648580] [2024-11-24 01:25:07,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:07,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:25:07,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:07,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:25:07,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:25:07,675 INFO L87 Difference]: Start difference. First operand 311 states and 339 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:25:07,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:07,947 INFO L93 Difference]: Finished difference Result 545 states and 595 transitions. [2024-11-24 01:25:07,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:25:07,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 204 [2024-11-24 01:25:07,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:07,950 INFO L225 Difference]: With dead ends: 545 [2024-11-24 01:25:07,950 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 01:25:07,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:25:07,951 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 26 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:07,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 361 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:25:07,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 01:25:07,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 01:25:07,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:25:07,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 01:25:07,953 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204 [2024-11-24 01:25:07,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:07,954 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:25:07,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:25:07,958 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 01:25:07,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 01:25:07,964 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:25:07,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-24 01:25:07,968 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:07,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.