./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-65.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_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/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_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-65.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/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_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/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 70d54a7730aec233a95490e3f0620c9d31c7d77ce29db2e5aff41d48560470e5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:58:21,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:58:21,938 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:58:21,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:58:21,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:58:21,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:58:21,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:58:22,000 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:58:22,000 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:58:22,001 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:58:22,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:58:22,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:58:22,003 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:58:22,003 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:58:22,003 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:58:22,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:58:22,004 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:58:22,004 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:58:22,005 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:58:22,005 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:58:22,005 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:58:22,005 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:58:22,005 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:58:22,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:58:22,006 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:58:22,006 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:58:22,006 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:58:22,006 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:58:22,006 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:58:22,006 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:58:22,007 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:58:22,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:58:22,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:58:22,008 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:58:22,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:58:22,008 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:58:22,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:58:22,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:58:22,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:58:22,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:58:22,009 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:58:22,009 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:58:22,009 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:58:22,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:58:22,009 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:58:22,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:58:22,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:58:22,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:58:22,009 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_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/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 -> 70d54a7730aec233a95490e3f0620c9d31c7d77ce29db2e5aff41d48560470e5 [2024-11-23 23:58:22,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:58:22,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:58:22,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:58:22,416 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:58:22,416 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:58:22,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-65.i [2024-11-23 23:58:25,805 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/data/7ea3def97/36254122d48545c78bbc9fcd2edc497f/FLAGe4d763d98 [2024-11-23 23:58:26,228 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:58:26,229 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-65.i [2024-11-23 23:58:26,244 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/data/7ea3def97/36254122d48545c78bbc9fcd2edc497f/FLAGe4d763d98 [2024-11-23 23:58:26,264 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/data/7ea3def97/36254122d48545c78bbc9fcd2edc497f [2024-11-23 23:58:26,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:58:26,268 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:58:26,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:58:26,270 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:58:26,274 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:58:26,275 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:58:26" (1/1) ... [2024-11-23 23:58:26,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f5e9eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:26, skipping insertion in model container [2024-11-23 23:58:26,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:58:26" (1/1) ... [2024-11-23 23:58:26,346 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:58:26,572 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_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-65.i[916,929] [2024-11-23 23:58:26,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:58:26,917 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:58:26,936 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_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-65.i[916,929] [2024-11-23 23:58:27,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:58:27,155 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:58:27,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27 WrapperNode [2024-11-23 23:58:27,159 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:58:27,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:58:27,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:58:27,161 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:58:27,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27" (1/1) ... [2024-11-23 23:58:27,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27" (1/1) ... [2024-11-23 23:58:27,367 INFO L138 Inliner]: procedures = 26, calls = 116, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 871 [2024-11-23 23:58:27,368 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:58:27,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:58:27,369 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:58:27,369 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:58:27,382 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27" (1/1) ... [2024-11-23 23:58:27,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27" (1/1) ... [2024-11-23 23:58:27,407 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27" (1/1) ... [2024-11-23 23:58:27,512 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 23:58:27,512 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27" (1/1) ... [2024-11-23 23:58:27,513 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27" (1/1) ... [2024-11-23 23:58:27,547 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27" (1/1) ... [2024-11-23 23:58:27,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27" (1/1) ... [2024-11-23 23:58:27,559 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27" (1/1) ... [2024-11-23 23:58:27,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27" (1/1) ... [2024-11-23 23:58:27,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27" (1/1) ... [2024-11-23 23:58:27,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:58:27,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:58:27,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:58:27,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:58:27,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27" (1/1) ... [2024-11-23 23:58:27,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:58:27,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:58:27,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:58:27,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:58:27,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:58:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:58:27,692 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:58:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:58:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:58:27,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:58:27,984 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:58:27,987 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:58:30,270 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-23 23:58:30,270 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:58:30,299 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:58:30,302 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:58:30,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:58:30 BoogieIcfgContainer [2024-11-23 23:58:30,303 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:58:30,306 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:58:30,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:58:30,315 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:58:30,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:58:26" (1/3) ... [2024-11-23 23:58:30,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d16b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:58:30, skipping insertion in model container [2024-11-23 23:58:30,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:58:27" (2/3) ... [2024-11-23 23:58:30,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d16b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:58:30, skipping insertion in model container [2024-11-23 23:58:30,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:58:30" (3/3) ... [2024-11-23 23:58:30,321 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-65.i [2024-11-23 23:58:30,343 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:58:30,347 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-65.i that has 2 procedures, 347 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:58:30,464 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:58:30,477 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;@43467bba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:58:30,477 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:58:30,486 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 241 states have (on average 1.5809128630705394) internal successors, (381), 242 states have internal predecessors, (381), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-23 23:58:30,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2024-11-23 23:58:30,546 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:30,548 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:30,549 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:30,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:30,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1649976737, now seen corresponding path program 1 times [2024-11-23 23:58:30,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:30,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293065609] [2024-11-23 23:58:30,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:30,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:31,861 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 20808 trivial. 0 not checked. [2024-11-23 23:58:31,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:31,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293065609] [2024-11-23 23:58:31,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293065609] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:58:31,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809121911] [2024-11-23 23:58:31,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:31,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:58:31,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:58:31,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:58:31,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:58:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:32,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 1623 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:58:32,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:58:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 20808 trivial. 0 not checked. [2024-11-23 23:58:32,934 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:58:32,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809121911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:32,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:58:32,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:58:32,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940182052] [2024-11-23 23:58:32,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:32,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:58:32,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:32,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:58:32,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:58:32,989 INFO L87 Difference]: Start difference. First operand has 347 states, 241 states have (on average 1.5809128630705394) internal successors, (381), 242 states have internal predecessors, (381), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 2 states have call successors, (103), 2 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 2 states have call successors, (103) [2024-11-23 23:58:33,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:33,109 INFO L93 Difference]: Finished difference Result 685 states and 1269 transitions. [2024-11-23 23:58:33,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:58:33,112 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 2 states have call successors, (103), 2 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 2 states have call successors, (103) Word has length 681 [2024-11-23 23:58:33,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:33,125 INFO L225 Difference]: With dead ends: 685 [2024-11-23 23:58:33,125 INFO L226 Difference]: Without dead ends: 341 [2024-11-23 23:58:33,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 682 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:58:33,140 INFO L435 NwaCegarLoop]: 571 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, 571 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 [2024-11-23 23:58:33,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:33,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-23 23:58:33,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-11-23 23:58:33,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 236 states have (on average 1.5466101694915255) internal successors, (365), 236 states have internal predecessors, (365), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-23 23:58:33,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 571 transitions. [2024-11-23 23:58:33,272 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 571 transitions. Word has length 681 [2024-11-23 23:58:33,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:33,273 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 571 transitions. [2024-11-23 23:58:33,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 2 states have call successors, (103), 2 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 2 states have call successors, (103) [2024-11-23 23:58:33,274 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 571 transitions. [2024-11-23 23:58:33,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2024-11-23 23:58:33,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:33,301 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:33,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:58:33,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cae3ac-25bc-41dc-9a13-a3f6ebf6a019/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:58:33,506 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:33,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:33,509 INFO L85 PathProgramCache]: Analyzing trace with hash -2068310469, now seen corresponding path program 1 times [2024-11-23 23:58:33,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:33,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500949262] [2024-11-23 23:58:33,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:33,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:34,993 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2024-11-23 23:58:34,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:34,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500949262] [2024-11-23 23:58:34,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500949262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:34,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:34,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:34,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725733247] [2024-11-23 23:58:34,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:35,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:35,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:35,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:35,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:35,007 INFO L87 Difference]: Start difference. First operand 341 states and 571 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:35,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:35,235 INFO L93 Difference]: Finished difference Result 880 states and 1484 transitions. [2024-11-23 23:58:35,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:35,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 682 [2024-11-23 23:58:35,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:35,256 INFO L225 Difference]: With dead ends: 880 [2024-11-23 23:58:35,257 INFO L226 Difference]: Without dead ends: 542 [2024-11-23 23:58:35,260 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 [2024-11-23 23:58:35,261 INFO L435 NwaCegarLoop]: 676 mSDtfsCounter, 331 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:35,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1223 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:58:35,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-23 23:58:35,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 539. [2024-11-23 23:58:35,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 411 states have (on average 1.5961070559610706) internal successors, (656), 412 states have internal predecessors, (656), 125 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (125), 124 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-23 23:58:35,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 906 transitions. [2024-11-23 23:58:35,413 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 906 transitions. Word has length 682 [2024-11-23 23:58:35,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:35,420 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 906 transitions. [2024-11-23 23:58:35,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:35,420 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 906 transitions. [2024-11-23 23:58:35,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2024-11-23 23:58:35,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:35,452 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:35,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:58:35,454 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:35,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:35,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2075137141, now seen corresponding path program 1 times [2024-11-23 23:58:35,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:35,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390547657] [2024-11-23 23:58:35,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:35,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2024-11-23 23:58:36,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:36,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390547657] [2024-11-23 23:58:36,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390547657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:36,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:36,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:36,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698089336] [2024-11-23 23:58:36,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:36,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:36,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:36,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:36,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:36,218 INFO L87 Difference]: Start difference. First operand 539 states and 906 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:36,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:36,398 INFO L93 Difference]: Finished difference Result 1469 states and 2479 transitions. [2024-11-23 23:58:36,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:36,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 682 [2024-11-23 23:58:36,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:36,410 INFO L225 Difference]: With dead ends: 1469 [2024-11-23 23:58:36,411 INFO L226 Difference]: Without dead ends: 933 [2024-11-23 23:58:36,413 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 [2024-11-23 23:58:36,414 INFO L435 NwaCegarLoop]: 856 mSDtfsCounter, 323 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:36,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 1399 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:58:36,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2024-11-23 23:58:36,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 930. [2024-11-23 23:58:36,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 754 states have (on average 1.6153846153846154) internal successors, (1218), 757 states have internal predecessors, (1218), 171 states have call successors, (171), 4 states have call predecessors, (171), 4 states have return successors, (171), 168 states have call predecessors, (171), 171 states have call successors, (171) [2024-11-23 23:58:36,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1560 transitions. [2024-11-23 23:58:36,548 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1560 transitions. Word has length 682 [2024-11-23 23:58:36,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:36,550 INFO L471 AbstractCegarLoop]: Abstraction has 930 states and 1560 transitions. [2024-11-23 23:58:36,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:36,551 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1560 transitions. [2024-11-23 23:58:36,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2024-11-23 23:58:36,559 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:36,560 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:36,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:58:36,560 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:36,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:36,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1532103804, now seen corresponding path program 1 times [2024-11-23 23:58:36,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:36,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869439681] [2024-11-23 23:58:36,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:36,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:37,243 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2024-11-23 23:58:37,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:37,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869439681] [2024-11-23 23:58:37,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869439681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:37,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:37,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:37,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42813033] [2024-11-23 23:58:37,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:37,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:37,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:37,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:37,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:37,249 INFO L87 Difference]: Start difference. First operand 930 states and 1560 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:37,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:37,488 INFO L93 Difference]: Finished difference Result 2728 states and 4575 transitions. [2024-11-23 23:58:37,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:37,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 683 [2024-11-23 23:58:37,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:37,509 INFO L225 Difference]: With dead ends: 2728 [2024-11-23 23:58:37,509 INFO L226 Difference]: Without dead ends: 1801 [2024-11-23 23:58:37,513 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 [2024-11-23 23:58:37,516 INFO L435 NwaCegarLoop]: 656 mSDtfsCounter, 549 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:37,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 1202 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:58:37,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2024-11-23 23:58:37,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1799. [2024-11-23 23:58:37,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1448 states have (on average 1.5925414364640884) internal successors, (2306), 1454 states have internal predecessors, (2306), 342 states have call successors, (342), 8 states have call predecessors, (342), 8 states have return successors, (342), 336 states have call predecessors, (342), 342 states have call successors, (342) [2024-11-23 23:58:37,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2990 transitions. [2024-11-23 23:58:37,828 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2990 transitions. Word has length 683 [2024-11-23 23:58:37,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:37,831 INFO L471 AbstractCegarLoop]: Abstraction has 1799 states and 2990 transitions. [2024-11-23 23:58:37,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:37,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2990 transitions. [2024-11-23 23:58:37,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2024-11-23 23:58:37,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:37,851 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:37,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:58:37,852 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:37,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:37,853 INFO L85 PathProgramCache]: Analyzing trace with hash 977502594, now seen corresponding path program 1 times [2024-11-23 23:58:37,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:37,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029756713] [2024-11-23 23:58:37,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:37,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:38,581 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2024-11-23 23:58:38,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:38,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029756713] [2024-11-23 23:58:38,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029756713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:38,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:38,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:38,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682912315] [2024-11-23 23:58:38,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:38,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:38,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:38,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:38,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:38,589 INFO L87 Difference]: Start difference. First operand 1799 states and 2990 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:38,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:38,923 INFO L93 Difference]: Finished difference Result 5391 states and 8964 transitions. [2024-11-23 23:58:38,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:38,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 683 [2024-11-23 23:58:38,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:38,958 INFO L225 Difference]: With dead ends: 5391 [2024-11-23 23:58:38,958 INFO L226 Difference]: Without dead ends: 3595 [2024-11-23 23:58:38,965 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 [2024-11-23 23:58:38,968 INFO L435 NwaCegarLoop]: 1057 mSDtfsCounter, 559 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:38,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 1619 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:38,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2024-11-23 23:58:39,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3593. [2024-11-23 23:58:39,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3593 states, 2892 states have (on average 1.5850622406639003) internal successors, (4584), 2904 states have internal predecessors, (4584), 684 states have call successors, (684), 16 states have call predecessors, (684), 16 states have return successors, (684), 672 states have call predecessors, (684), 684 states have call successors, (684) [2024-11-23 23:58:39,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 5952 transitions. [2024-11-23 23:58:39,428 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 5952 transitions. Word has length 683 [2024-11-23 23:58:39,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:39,430 INFO L471 AbstractCegarLoop]: Abstraction has 3593 states and 5952 transitions. [2024-11-23 23:58:39,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:39,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 5952 transitions. [2024-11-23 23:58:39,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2024-11-23 23:58:39,441 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:39,441 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:39,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:58:39,442 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:39,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:39,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1508559482, now seen corresponding path program 1 times [2024-11-23 23:58:39,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:39,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953204536] [2024-11-23 23:58:39,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:39,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:40,043 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2024-11-23 23:58:40,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:40,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953204536] [2024-11-23 23:58:40,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953204536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:40,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:40,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:40,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338293545] [2024-11-23 23:58:40,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:40,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:40,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:40,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:40,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:40,052 INFO L87 Difference]: Start difference. First operand 3593 states and 5952 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:40,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:40,583 INFO L93 Difference]: Finished difference Result 10773 states and 17850 transitions. [2024-11-23 23:58:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:40,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 683 [2024-11-23 23:58:40,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:40,640 INFO L225 Difference]: With dead ends: 10773 [2024-11-23 23:58:40,640 INFO L226 Difference]: Without dead ends: 7183 [2024-11-23 23:58:40,653 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 [2024-11-23 23:58:40,654 INFO L435 NwaCegarLoop]: 1110 mSDtfsCounter, 554 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:40,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 1661 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:58:40,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7183 states. [2024-11-23 23:58:41,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7183 to 3865. [2024-11-23 23:58:41,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3865 states, 3164 states have (on average 1.570164348925411) internal successors, (4968), 3176 states have internal predecessors, (4968), 684 states have call successors, (684), 16 states have call predecessors, (684), 16 states have return successors, (684), 672 states have call predecessors, (684), 684 states have call successors, (684) [2024-11-23 23:58:41,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3865 states to 3865 states and 6336 transitions. [2024-11-23 23:58:41,356 INFO L78 Accepts]: Start accepts. Automaton has 3865 states and 6336 transitions. Word has length 683 [2024-11-23 23:58:41,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:41,358 INFO L471 AbstractCegarLoop]: Abstraction has 3865 states and 6336 transitions. [2024-11-23 23:58:41,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3865 states and 6336 transitions. [2024-11-23 23:58:41,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2024-11-23 23:58:41,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:41,377 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:41,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:58:41,377 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:41,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:41,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1901776754, now seen corresponding path program 1 times [2024-11-23 23:58:41,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:41,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261036790] [2024-11-23 23:58:41,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:41,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:41,895 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2024-11-23 23:58:41,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:41,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261036790] [2024-11-23 23:58:41,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261036790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:41,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:41,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:41,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886132369] [2024-11-23 23:58:41,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:41,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:41,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:41,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:41,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:41,899 INFO L87 Difference]: Start difference. First operand 3865 states and 6336 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:42,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:42,112 INFO L93 Difference]: Finished difference Result 7423 states and 12157 transitions. [2024-11-23 23:58:42,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:42,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 684 [2024-11-23 23:58:42,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:42,138 INFO L225 Difference]: With dead ends: 7423 [2024-11-23 23:58:42,138 INFO L226 Difference]: Without dead ends: 3561 [2024-11-23 23:58:42,147 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 [2024-11-23 23:58:42,149 INFO L435 NwaCegarLoop]: 560 mSDtfsCounter, 0 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:42,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1112 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:42,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3561 states. [2024-11-23 23:58:42,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3561 to 3561. [2024-11-23 23:58:42,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3561 states, 2860 states have (on average 1.5524475524475525) internal successors, (4440), 2872 states have internal predecessors, (4440), 684 states have call successors, (684), 16 states have call predecessors, (684), 16 states have return successors, (684), 672 states have call predecessors, (684), 684 states have call successors, (684) [2024-11-23 23:58:42,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3561 states to 3561 states and 5808 transitions. [2024-11-23 23:58:42,528 INFO L78 Accepts]: Start accepts. Automaton has 3561 states and 5808 transitions. Word has length 684 [2024-11-23 23:58:42,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:42,530 INFO L471 AbstractCegarLoop]: Abstraction has 3561 states and 5808 transitions. [2024-11-23 23:58:42,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:42,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3561 states and 5808 transitions. [2024-11-23 23:58:42,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2024-11-23 23:58:42,538 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:42,539 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:42,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:58:42,539 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:42,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:42,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1504327925, now seen corresponding path program 1 times [2024-11-23 23:58:42,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:42,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163551108] [2024-11-23 23:58:42,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:42,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:43,192 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2024-11-23 23:58:43,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:43,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163551108] [2024-11-23 23:58:43,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163551108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:43,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:43,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:58:43,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947203127] [2024-11-23 23:58:43,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:43,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:58:43,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:43,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:58:43,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:58:43,200 INFO L87 Difference]: Start difference. First operand 3561 states and 5808 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:43,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:43,475 INFO L93 Difference]: Finished difference Result 7119 states and 11613 transitions. [2024-11-23 23:58:43,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:58:43,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 685 [2024-11-23 23:58:43,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:43,508 INFO L225 Difference]: With dead ends: 7119 [2024-11-23 23:58:43,508 INFO L226 Difference]: Without dead ends: 3561 [2024-11-23 23:58:43,517 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 [2024-11-23 23:58:43,517 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 391 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:43,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 552 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:58:43,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3561 states. [2024-11-23 23:58:43,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3561 to 3561. [2024-11-23 23:58:43,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3561 states, 2860 states have (on average 1.5510489510489511) internal successors, (4436), 2872 states have internal predecessors, (4436), 684 states have call successors, (684), 16 states have call predecessors, (684), 16 states have return successors, (684), 672 states have call predecessors, (684), 684 states have call successors, (684) [2024-11-23 23:58:43,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3561 states to 3561 states and 5804 transitions. [2024-11-23 23:58:43,867 INFO L78 Accepts]: Start accepts. Automaton has 3561 states and 5804 transitions. Word has length 685 [2024-11-23 23:58:43,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:43,868 INFO L471 AbstractCegarLoop]: Abstraction has 3561 states and 5804 transitions. [2024-11-23 23:58:43,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:43,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3561 states and 5804 transitions. [2024-11-23 23:58:43,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2024-11-23 23:58:43,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:43,878 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:43,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:58:43,878 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:43,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:43,879 INFO L85 PathProgramCache]: Analyzing trace with hash -402143544, now seen corresponding path program 1 times [2024-11-23 23:58:43,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:43,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529506471] [2024-11-23 23:58:43,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:43,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:46,103 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2024-11-23 23:58:46,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:46,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529506471] [2024-11-23 23:58:46,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529506471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:46,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:46,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:58:46,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529229551] [2024-11-23 23:58:46,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:46,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:58:46,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:46,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:58:46,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:58:46,108 INFO L87 Difference]: Start difference. First operand 3561 states and 5804 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:48,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:48,726 INFO L93 Difference]: Finished difference Result 11728 states and 19233 transitions. [2024-11-23 23:58:48,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:58:48,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 687 [2024-11-23 23:58:48,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:48,770 INFO L225 Difference]: With dead ends: 11728 [2024-11-23 23:58:48,770 INFO L226 Difference]: Without dead ends: 8170 [2024-11-23 23:58:48,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:58:48,782 INFO L435 NwaCegarLoop]: 1592 mSDtfsCounter, 1421 mSDsluCounter, 2435 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 4027 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:48,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 4027 Invalid, 474 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [207 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 23:58:48,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8170 states. [2024-11-23 23:58:49,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8170 to 3593. [2024-11-23 23:58:49,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3593 states, 2892 states have (on average 1.5449515905947442) internal successors, (4468), 2904 states have internal predecessors, (4468), 684 states have call successors, (684), 16 states have call predecessors, (684), 16 states have return successors, (684), 672 states have call predecessors, (684), 684 states have call successors, (684) [2024-11-23 23:58:49,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 5836 transitions. [2024-11-23 23:58:49,750 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 5836 transitions. Word has length 687 [2024-11-23 23:58:49,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:49,751 INFO L471 AbstractCegarLoop]: Abstraction has 3593 states and 5836 transitions. [2024-11-23 23:58:49,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:58:49,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 5836 transitions. [2024-11-23 23:58:49,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-23 23:58:49,760 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:49,760 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:49,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:58:49,761 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:49,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:49,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1964333275, now seen corresponding path program 1 times [2024-11-23 23:58:49,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:49,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976317301] [2024-11-23 23:58:49,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:49,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:55,177 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2024-11-23 23:58:55,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:55,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976317301] [2024-11-23 23:58:55,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976317301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:55,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:55,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:58:55,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491782538] [2024-11-23 23:58:55,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:55,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:58:55,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:55,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:58:55,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:58:55,181 INFO L87 Difference]: Start difference. First operand 3593 states and 5836 transitions. Second operand has 11 states, 11 states have (on average 16.0) internal successors, (176), 11 states have internal predecessors, (176), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:59:10,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:10,526 INFO L93 Difference]: Finished difference Result 29333 states and 47414 transitions. [2024-11-23 23:59:10,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 23:59:10,527 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.0) internal successors, (176), 11 states have internal predecessors, (176), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 688 [2024-11-23 23:59:10,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:10,646 INFO L225 Difference]: With dead ends: 29333 [2024-11-23 23:59:10,646 INFO L226 Difference]: Without dead ends: 25743 [2024-11-23 23:59:10,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:59:10,668 INFO L435 NwaCegarLoop]: 1015 mSDtfsCounter, 6142 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 2526 mSolverCounterSat, 2658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6142 SdHoareTripleChecker+Valid, 4189 SdHoareTripleChecker+Invalid, 5184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2658 IncrementalHoareTripleChecker+Valid, 2526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:10,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6142 Valid, 4189 Invalid, 5184 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2658 Valid, 2526 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2024-11-23 23:59:10,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25743 states. [2024-11-23 23:59:13,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25743 to 13763. [2024-11-23 23:59:13,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13763 states, 11202 states have (on average 1.5475807891447955) internal successors, (17336), 11258 states have internal predecessors, (17336), 2492 states have call successors, (2492), 68 states have call predecessors, (2492), 68 states have return successors, (2492), 2436 states have call predecessors, (2492), 2492 states have call successors, (2492) [2024-11-23 23:59:14,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13763 states to 13763 states and 22320 transitions. [2024-11-23 23:59:14,027 INFO L78 Accepts]: Start accepts. Automaton has 13763 states and 22320 transitions. Word has length 688 [2024-11-23 23:59:14,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:14,029 INFO L471 AbstractCegarLoop]: Abstraction has 13763 states and 22320 transitions. [2024-11-23 23:59:14,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.0) internal successors, (176), 11 states have internal predecessors, (176), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:59:14,029 INFO L276 IsEmpty]: Start isEmpty. Operand 13763 states and 22320 transitions. [2024-11-23 23:59:14,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-23 23:59:14,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:14,048 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:59:14,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:59:14,049 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:59:14,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:14,050 INFO L85 PathProgramCache]: Analyzing trace with hash -55875485, now seen corresponding path program 1 times [2024-11-23 23:59:14,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:14,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894874084] [2024-11-23 23:59:14,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:14,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:16,410 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2024-11-23 23:59:16,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:16,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894874084] [2024-11-23 23:59:16,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894874084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:16,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:59:16,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:59:16,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170723690] [2024-11-23 23:59:16,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:16,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:59:16,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:16,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:59:16,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:59:16,413 INFO L87 Difference]: Start difference. First operand 13763 states and 22320 transitions. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 3 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) [2024-11-23 23:59:19,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:19,755 INFO L93 Difference]: Finished difference Result 28056 states and 45054 transitions. [2024-11-23 23:59:19,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:59:19,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 3 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) Word has length 688 [2024-11-23 23:59:19,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:19,821 INFO L225 Difference]: With dead ends: 28056 [2024-11-23 23:59:19,822 INFO L226 Difference]: Without dead ends: 14296 [2024-11-23 23:59:19,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:59:19,856 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 688 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:19,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 1520 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 23:59:19,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14296 states. [2024-11-23 23:59:22,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14296 to 14295. [2024-11-23 23:59:22,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14295 states, 11594 states have (on average 1.523546662066586) internal successors, (17664), 11651 states have internal predecessors, (17664), 2504 states have call successors, (2504), 196 states have call predecessors, (2504), 196 states have return successors, (2504), 2447 states have call predecessors, (2504), 2504 states have call successors, (2504) [2024-11-23 23:59:22,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14295 states to 14295 states and 22672 transitions. [2024-11-23 23:59:22,345 INFO L78 Accepts]: Start accepts. Automaton has 14295 states and 22672 transitions. Word has length 688 [2024-11-23 23:59:22,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:22,346 INFO L471 AbstractCegarLoop]: Abstraction has 14295 states and 22672 transitions. [2024-11-23 23:59:22,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 3 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) [2024-11-23 23:59:22,346 INFO L276 IsEmpty]: Start isEmpty. Operand 14295 states and 22672 transitions. [2024-11-23 23:59:22,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-23 23:59:22,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:22,366 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:59:22,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:59:22,366 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:59:22,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:22,367 INFO L85 PathProgramCache]: Analyzing trace with hash 624182885, now seen corresponding path program 1 times [2024-11-23 23:59:22,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:22,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964406199] [2024-11-23 23:59:22,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:22,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:24,251 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2024-11-23 23:59:24,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:24,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964406199] [2024-11-23 23:59:24,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964406199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:24,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:59:24,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:59:24,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944080999] [2024-11-23 23:59:24,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:24,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:59:24,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:24,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:59:24,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:59:24,255 INFO L87 Difference]: Start difference. First operand 14295 states and 22672 transitions. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:59:30,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:30,593 INFO L93 Difference]: Finished difference Result 46145 states and 73934 transitions. [2024-11-23 23:59:30,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:59:30,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 688 [2024-11-23 23:59:30,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:30,731 INFO L225 Difference]: With dead ends: 46145 [2024-11-23 23:59:30,731 INFO L226 Difference]: Without dead ends: 31873 [2024-11-23 23:59:30,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:59:30,769 INFO L435 NwaCegarLoop]: 1592 mSDtfsCounter, 1408 mSDsluCounter, 3462 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 5054 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:30,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 5054 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 23:59:30,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31873 states. [2024-11-23 23:59:33,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31873 to 14223. [2024-11-23 23:59:33,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14223 states, 11490 states have (on average 1.5227154046997389) internal successors, (17496), 11547 states have internal predecessors, (17496), 2534 states have call successors, (2534), 198 states have call predecessors, (2534), 198 states have return successors, (2534), 2477 states have call predecessors, (2534), 2534 states have call successors, (2534) [2024-11-23 23:59:33,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14223 states to 14223 states and 22564 transitions. [2024-11-23 23:59:33,390 INFO L78 Accepts]: Start accepts. Automaton has 14223 states and 22564 transitions. Word has length 688 [2024-11-23 23:59:33,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:33,392 INFO L471 AbstractCegarLoop]: Abstraction has 14223 states and 22564 transitions. [2024-11-23 23:59:33,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:59:33,392 INFO L276 IsEmpty]: Start isEmpty. Operand 14223 states and 22564 transitions. [2024-11-23 23:59:33,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2024-11-23 23:59:33,408 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:33,408 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:59:33,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:59:33,409 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:59:33,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:33,410 INFO L85 PathProgramCache]: Analyzing trace with hash -2083461248, now seen corresponding path program 1 times [2024-11-23 23:59:33,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:33,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440025923] [2024-11-23 23:59:33,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:33,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:35,043 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2024-11-23 23:59:35,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:35,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440025923] [2024-11-23 23:59:35,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440025923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:35,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:59:35,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:59:35,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792382474] [2024-11-23 23:59:35,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:35,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:59:35,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:35,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:59:35,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:59:35,048 INFO L87 Difference]: Start difference. First operand 14223 states and 22564 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:59:43,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:43,005 INFO L93 Difference]: Finished difference Result 56719 states and 90027 transitions. [2024-11-23 23:59:43,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:59:43,006 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 691 [2024-11-23 23:59:43,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:43,173 INFO L225 Difference]: With dead ends: 56719 [2024-11-23 23:59:43,173 INFO L226 Difference]: Without dead ends: 42575 [2024-11-23 23:59:43,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:59:43,211 INFO L435 NwaCegarLoop]: 913 mSDtfsCounter, 1206 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:43,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 2673 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 23:59:43,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42575 states. [2024-11-23 23:59:50,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42575 to 42571. [2024-11-23 23:59:50,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42571 states, 34462 states have (on average 1.5228367477221287) internal successors, (52480), 34631 states have internal predecessors, (52480), 7518 states have call successors, (7518), 590 states have call predecessors, (7518), 590 states have return successors, (7518), 7349 states have call predecessors, (7518), 7518 states have call successors, (7518) [2024-11-23 23:59:50,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42571 states to 42571 states and 67516 transitions. [2024-11-23 23:59:50,812 INFO L78 Accepts]: Start accepts. Automaton has 42571 states and 67516 transitions. Word has length 691 [2024-11-23 23:59:50,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:50,813 INFO L471 AbstractCegarLoop]: Abstraction has 42571 states and 67516 transitions. [2024-11-23 23:59:50,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-23 23:59:50,813 INFO L276 IsEmpty]: Start isEmpty. Operand 42571 states and 67516 transitions. [2024-11-23 23:59:50,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2024-11-23 23:59:50,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:50,846 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:59:50,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:59:50,846 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:59:50,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:50,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1730425790, now seen corresponding path program 1 times [2024-11-23 23:59:50,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:50,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632445674] [2024-11-23 23:59:50,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:50,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:52,018 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2024-11-23 23:59:52,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:52,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632445674] [2024-11-23 23:59:52,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632445674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:52,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:59:52,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:59:52,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742177336] [2024-11-23 23:59:52,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:52,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:59:52,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:52,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:59:52,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:59:52,022 INFO L87 Difference]: Start difference. First operand 42571 states and 67516 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-24 00:00:01,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:00:01,539 INFO L93 Difference]: Finished difference Result 112901 states and 178949 transitions. [2024-11-24 00:00:01,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:00:01,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 691 [2024-11-24 00:00:01,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:00:01,804 INFO L225 Difference]: With dead ends: 112901 [2024-11-24 00:00:01,804 INFO L226 Difference]: Without dead ends: 70409 [2024-11-24 00:00:01,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:00:01,905 INFO L435 NwaCegarLoop]: 834 mSDtfsCounter, 617 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:00:01,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 1881 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:00:01,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70409 states. [2024-11-24 00:00:08,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70409 to 47471. [2024-11-24 00:00:08,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47471 states, 39362 states have (on average 1.544179665667395) internal successors, (60782), 39531 states have internal predecessors, (60782), 7518 states have call successors, (7518), 590 states have call predecessors, (7518), 590 states have return successors, (7518), 7349 states have call predecessors, (7518), 7518 states have call successors, (7518) [2024-11-24 00:00:08,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47471 states to 47471 states and 75818 transitions. [2024-11-24 00:00:08,301 INFO L78 Accepts]: Start accepts. Automaton has 47471 states and 75818 transitions. Word has length 691 [2024-11-24 00:00:08,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:00:08,302 INFO L471 AbstractCegarLoop]: Abstraction has 47471 states and 75818 transitions. [2024-11-24 00:00:08,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2024-11-24 00:00:08,302 INFO L276 IsEmpty]: Start isEmpty. Operand 47471 states and 75818 transitions. [2024-11-24 00:00:08,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-24 00:00:08,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:00:08,327 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:00:08,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:00:08,327 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:00:08,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:00:08,328 INFO L85 PathProgramCache]: Analyzing trace with hash -23612981, now seen corresponding path program 1 times [2024-11-24 00:00:08,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:00:08,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206353332] [2024-11-24 00:00:08,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:00:08,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:00:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:00:08,799 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2024-11-24 00:00:08,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:00:08,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206353332] [2024-11-24 00:00:08,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206353332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:00:08,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:00:08,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:00:08,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711865655] [2024-11-24 00:00:08,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:00:08,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:00:08,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:00:08,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:00:08,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:00:08,804 INFO L87 Difference]: Start difference. First operand 47471 states and 75818 transitions. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103)