./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-63.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_68edabdc-96d1-4310-82fa-88a3ba107246/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68edabdc-96d1-4310-82fa-88a3ba107246/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_68edabdc-96d1-4310-82fa-88a3ba107246/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68edabdc-96d1-4310-82fa-88a3ba107246/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-63.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68edabdc-96d1-4310-82fa-88a3ba107246/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_68edabdc-96d1-4310-82fa-88a3ba107246/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 c66ddf4ed963c9002160029fe33b5c34d87306e43d6877b57e0974d5eaabbb18 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:30:33,491 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:30:33,625 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68edabdc-96d1-4310-82fa-88a3ba107246/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:30:33,639 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:30:33,640 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:30:33,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:30:33,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:30:33,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:30:33,691 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:30:33,692 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:30:33,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:30:33,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:30:33,694 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:30:33,694 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:30:33,694 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:30:33,695 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:30:33,695 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:30:33,695 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:30:33,695 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:30:33,695 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:30:33,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:30:33,696 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:30:33,696 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:30:33,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:30:33,697 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:30:33,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:30:33,697 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:30:33,697 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:30:33,697 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:30:33,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:30:33,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:30:33,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:30:33,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:30:33,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:30:33,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:30:33,700 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:30:33,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:30:33,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:30:33,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:30:33,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:30:33,701 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:30:33,701 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:30:33,701 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:30:33,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:30:33,701 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:30:33,701 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:30:33,701 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:30:33,702 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:30:33,702 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_68edabdc-96d1-4310-82fa-88a3ba107246/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 -> c66ddf4ed963c9002160029fe33b5c34d87306e43d6877b57e0974d5eaabbb18 [2024-11-24 01:30:34,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:30:34,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:30:34,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:30:34,104 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:30:34,105 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:30:34,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68edabdc-96d1-4310-82fa-88a3ba107246/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-63.i [2024-11-24 01:30:37,578 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68edabdc-96d1-4310-82fa-88a3ba107246/bin/uautomizer-verify-LYvppIcaGC/data/e26ec4e6d/f5cbbc4321d3490bb91ef38d2b9003ac/FLAG0103aafa9 [2024-11-24 01:30:38,099 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:30:38,100 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68edabdc-96d1-4310-82fa-88a3ba107246/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-63.i [2024-11-24 01:30:38,119 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68edabdc-96d1-4310-82fa-88a3ba107246/bin/uautomizer-verify-LYvppIcaGC/data/e26ec4e6d/f5cbbc4321d3490bb91ef38d2b9003ac/FLAG0103aafa9 [2024-11-24 01:30:38,138 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68edabdc-96d1-4310-82fa-88a3ba107246/bin/uautomizer-verify-LYvppIcaGC/data/e26ec4e6d/f5cbbc4321d3490bb91ef38d2b9003ac [2024-11-24 01:30:38,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:30:38,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:30:38,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:30:38,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:30:38,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:30:38,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:30:38" (1/1) ... [2024-11-24 01:30:38,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9b22f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:38, skipping insertion in model container [2024-11-24 01:30:38,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:30:38" (1/1) ... [2024-11-24 01:30:38,241 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:30:38,448 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_68edabdc-96d1-4310-82fa-88a3ba107246/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-63.i[916,929] [2024-11-24 01:30:38,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:30:38,809 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:30:38,826 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_68edabdc-96d1-4310-82fa-88a3ba107246/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-63.i[916,929] [2024-11-24 01:30:39,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:30:39,071 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:30:39,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39 WrapperNode [2024-11-24 01:30:39,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:30:39,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:30:39,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:30:39,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:30:39,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39" (1/1) ... [2024-11-24 01:30:39,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39" (1/1) ... [2024-11-24 01:30:39,250 INFO L138 Inliner]: procedures = 26, calls = 81, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 741 [2024-11-24 01:30:39,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:30:39,251 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:30:39,252 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:30:39,252 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:30:39,264 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39" (1/1) ... [2024-11-24 01:30:39,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39" (1/1) ... [2024-11-24 01:30:39,282 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39" (1/1) ... [2024-11-24 01:30:39,396 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:30:39,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39" (1/1) ... [2024-11-24 01:30:39,396 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39" (1/1) ... [2024-11-24 01:30:39,437 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39" (1/1) ... [2024-11-24 01:30:39,441 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39" (1/1) ... [2024-11-24 01:30:39,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39" (1/1) ... [2024-11-24 01:30:39,458 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39" (1/1) ... [2024-11-24 01:30:39,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39" (1/1) ... [2024-11-24 01:30:39,488 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:30:39,489 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:30:39,490 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:30:39,490 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:30:39,491 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39" (1/1) ... [2024-11-24 01:30:39,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:30:39,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68edabdc-96d1-4310-82fa-88a3ba107246/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:39,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68edabdc-96d1-4310-82fa-88a3ba107246/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:30:39,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68edabdc-96d1-4310-82fa-88a3ba107246/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:30:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:30:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:30:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:30:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:30:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:30:39,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:30:39,805 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:30:39,807 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:30:42,249 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-24 01:30:42,250 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:30:42,282 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:30:42,285 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:30:42,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:30:42 BoogieIcfgContainer [2024-11-24 01:30:42,286 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:30:42,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:30:42,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:30:42,298 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:30:42,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:30:38" (1/3) ... [2024-11-24 01:30:42,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b869f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:30:42, skipping insertion in model container [2024-11-24 01:30:42,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:30:39" (2/3) ... [2024-11-24 01:30:42,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b869f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:30:42, skipping insertion in model container [2024-11-24 01:30:42,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:30:42" (3/3) ... [2024-11-24 01:30:42,304 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-63.i [2024-11-24 01:30:42,326 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:30:42,330 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-63.i that has 2 procedures, 280 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:30:42,442 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:30:42,459 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;@69e38c12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:30:42,459 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:30:42,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 280 states, 209 states have (on average 1.5311004784688995) internal successors, (320), 210 states have internal predecessors, (320), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-24 01:30:42,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-24 01:30:42,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:42,504 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:42,505 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:30:42,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:42,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1645895732, now seen corresponding path program 1 times [2024-11-24 01:30:42,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:42,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058146134] [2024-11-24 01:30:42,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:42,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:44,378 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:30:44,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:44,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058146134] [2024-11-24 01:30:44,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058146134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:30:44,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:30:44,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:30:44,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144608045] [2024-11-24 01:30:44,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:30:44,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:30:44,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:44,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:30:44,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:30:44,431 INFO L87 Difference]: Start difference. First operand has 280 states, 209 states have (on average 1.5311004784688995) internal successors, (320), 210 states have internal predecessors, (320), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:30:44,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:44,768 INFO L93 Difference]: Finished difference Result 726 states and 1267 transitions. [2024-11-24 01:30:44,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:30:44,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-24 01:30:44,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:44,789 INFO L225 Difference]: With dead ends: 726 [2024-11-24 01:30:44,790 INFO L226 Difference]: Without dead ends: 449 [2024-11-24 01:30:44,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:30:44,800 INFO L435 NwaCegarLoop]: 430 mSDtfsCounter, 260 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:44,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 850 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:30:44,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-24 01:30:44,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 446. [2024-11-24 01:30:44,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 367 states have (on average 1.550408719346049) internal successors, (569), 368 states have internal predecessors, (569), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-24 01:30:44,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 721 transitions. [2024-11-24 01:30:44,986 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 721 transitions. Word has length 471 [2024-11-24 01:30:44,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:44,991 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 721 transitions. [2024-11-24 01:30:44,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:30:44,992 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 721 transitions. [2024-11-24 01:30:45,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-24 01:30:45,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:45,016 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:45,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:30:45,017 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:30:45,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:45,020 INFO L85 PathProgramCache]: Analyzing trace with hash -691955574, now seen corresponding path program 1 times [2024-11-24 01:30:45,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:45,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336351289] [2024-11-24 01:30:45,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:45,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:30:45,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:45,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336351289] [2024-11-24 01:30:45,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336351289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:30:45,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:30:45,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:30:45,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368673383] [2024-11-24 01:30:45,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:30:45,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:30:45,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:45,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:30:45,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:30:45,960 INFO L87 Difference]: Start difference. First operand 446 states and 721 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:30:46,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:46,244 INFO L93 Difference]: Finished difference Result 1320 states and 2135 transitions. [2024-11-24 01:30:46,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:30:46,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-24 01:30:46,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:46,262 INFO L225 Difference]: With dead ends: 1320 [2024-11-24 01:30:46,262 INFO L226 Difference]: Without dead ends: 877 [2024-11-24 01:30:46,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:30:46,265 INFO L435 NwaCegarLoop]: 664 mSDtfsCounter, 417 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:46,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1086 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:30:46,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-11-24 01:30:46,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 554. [2024-11-24 01:30:46,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 475 states have (on average 1.5726315789473684) internal successors, (747), 476 states have internal predecessors, (747), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-24 01:30:46,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 899 transitions. [2024-11-24 01:30:46,379 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 899 transitions. Word has length 471 [2024-11-24 01:30:46,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:46,381 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 899 transitions. [2024-11-24 01:30:46,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:30:46,382 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 899 transitions. [2024-11-24 01:30:46,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-24 01:30:46,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:46,393 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:46,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:30:46,394 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:30:46,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:46,395 INFO L85 PathProgramCache]: Analyzing trace with hash 184063432, now seen corresponding path program 1 times [2024-11-24 01:30:46,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:46,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716321533] [2024-11-24 01:30:46,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:46,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:30:47,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:47,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716321533] [2024-11-24 01:30:47,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716321533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:30:47,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:30:47,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:30:47,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989641580] [2024-11-24 01:30:47,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:30:47,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:30:47,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:47,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:30:47,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:30:47,143 INFO L87 Difference]: Start difference. First operand 554 states and 899 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:30:47,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:47,386 INFO L93 Difference]: Finished difference Result 1632 states and 2647 transitions. [2024-11-24 01:30:47,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:30:47,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-24 01:30:47,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:47,405 INFO L225 Difference]: With dead ends: 1632 [2024-11-24 01:30:47,407 INFO L226 Difference]: Without dead ends: 1081 [2024-11-24 01:30:47,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:30:47,413 INFO L435 NwaCegarLoop]: 435 mSDtfsCounter, 417 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:47,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 853 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:30:47,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-24 01:30:47,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 792. [2024-11-24 01:30:47,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 713 states have (on average 1.600280504908836) internal successors, (1141), 714 states have internal predecessors, (1141), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-24 01:30:47,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1293 transitions. [2024-11-24 01:30:47,603 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1293 transitions. Word has length 471 [2024-11-24 01:30:47,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:47,607 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1293 transitions. [2024-11-24 01:30:47,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:30:47,608 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1293 transitions. [2024-11-24 01:30:47,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-24 01:30:47,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:47,629 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:47,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:30:47,629 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:30:47,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:47,631 INFO L85 PathProgramCache]: Analyzing trace with hash -169024950, now seen corresponding path program 1 times [2024-11-24 01:30:47,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:47,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410748699] [2024-11-24 01:30:47,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:47,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:48,893 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:30:48,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:48,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410748699] [2024-11-24 01:30:48,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410748699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:30:48,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:30:48,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:30:48,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931373865] [2024-11-24 01:30:48,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:30:48,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:30:48,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:48,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:30:48,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:30:48,900 INFO L87 Difference]: Start difference. First operand 792 states and 1293 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2024-11-24 01:30:49,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:49,830 INFO L93 Difference]: Finished difference Result 2987 states and 4881 transitions. [2024-11-24 01:30:49,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:30:49,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 471 [2024-11-24 01:30:49,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:49,853 INFO L225 Difference]: With dead ends: 2987 [2024-11-24 01:30:49,854 INFO L226 Difference]: Without dead ends: 2198 [2024-11-24 01:30:49,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:30:49,858 INFO L435 NwaCegarLoop]: 444 mSDtfsCounter, 644 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1973 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:49,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1973 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:30:49,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2024-11-24 01:30:50,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 932. [2024-11-24 01:30:50,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 783 states have (on average 1.5670498084291187) internal successors, (1227), 784 states have internal predecessors, (1227), 144 states have call successors, (144), 4 states have call predecessors, (144), 4 states have return successors, (144), 143 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-24 01:30:50,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1515 transitions. [2024-11-24 01:30:50,095 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1515 transitions. Word has length 471 [2024-11-24 01:30:50,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:50,096 INFO L471 AbstractCegarLoop]: Abstraction has 932 states and 1515 transitions. [2024-11-24 01:30:50,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2024-11-24 01:30:50,097 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1515 transitions. [2024-11-24 01:30:50,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-24 01:30:50,110 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:50,110 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:50,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:30:50,111 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:30:50,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:50,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1883502994, now seen corresponding path program 1 times [2024-11-24 01:30:50,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:50,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163890516] [2024-11-24 01:30:50,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:50,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:51,453 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:30:51,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:51,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163890516] [2024-11-24 01:30:51,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163890516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:30:51,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:30:51,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:30:51,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676879045] [2024-11-24 01:30:51,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:30:51,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:30:51,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:51,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:30:51,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:30:51,458 INFO L87 Difference]: Start difference. First operand 932 states and 1515 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:30:52,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:52,385 INFO L93 Difference]: Finished difference Result 2939 states and 4803 transitions. [2024-11-24 01:30:52,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:30:52,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-24 01:30:52,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:52,404 INFO L225 Difference]: With dead ends: 2939 [2024-11-24 01:30:52,405 INFO L226 Difference]: Without dead ends: 2150 [2024-11-24 01:30:52,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:30:52,409 INFO L435 NwaCegarLoop]: 437 mSDtfsCounter, 781 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:52,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 1595 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:30:52,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-11-24 01:30:52,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 1162. [2024-11-24 01:30:52,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1013 states have (on average 1.5745310957551826) internal successors, (1595), 1014 states have internal predecessors, (1595), 144 states have call successors, (144), 4 states have call predecessors, (144), 4 states have return successors, (144), 143 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-24 01:30:52,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1883 transitions. [2024-11-24 01:30:52,583 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1883 transitions. Word has length 471 [2024-11-24 01:30:52,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:52,585 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1883 transitions. [2024-11-24 01:30:52,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:30:52,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1883 transitions. [2024-11-24 01:30:52,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-24 01:30:52,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:52,606 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:52,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:30:52,606 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:30:52,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:52,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1517977964, now seen corresponding path program 1 times [2024-11-24 01:30:52,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:52,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327007066] [2024-11-24 01:30:52,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:52,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:53,676 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:30:53,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:53,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327007066] [2024-11-24 01:30:53,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327007066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:30:53,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:30:53,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:30:53,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610034816] [2024-11-24 01:30:53,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:30:53,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:30:53,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:53,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:30:53,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:30:53,680 INFO L87 Difference]: Start difference. First operand 1162 states and 1883 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:30:54,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:54,879 INFO L93 Difference]: Finished difference Result 3065 states and 4961 transitions. [2024-11-24 01:30:54,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:30:54,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-24 01:30:54,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:54,897 INFO L225 Difference]: With dead ends: 3065 [2024-11-24 01:30:54,897 INFO L226 Difference]: Without dead ends: 2276 [2024-11-24 01:30:54,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:30:54,903 INFO L435 NwaCegarLoop]: 813 mSDtfsCounter, 697 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:54,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 2218 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:30:54,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2024-11-24 01:30:55,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 1288. [2024-11-24 01:30:55,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1139 states have (on average 1.5812115891132572) internal successors, (1801), 1140 states have internal predecessors, (1801), 144 states have call successors, (144), 4 states have call predecessors, (144), 4 states have return successors, (144), 143 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-24 01:30:55,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 2089 transitions. [2024-11-24 01:30:55,057 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 2089 transitions. Word has length 471 [2024-11-24 01:30:55,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:55,058 INFO L471 AbstractCegarLoop]: Abstraction has 1288 states and 2089 transitions. [2024-11-24 01:30:55,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:30:55,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 2089 transitions. [2024-11-24 01:30:55,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-24 01:30:55,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:55,073 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:55,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:30:55,074 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:30:55,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:55,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1912344750, now seen corresponding path program 1 times [2024-11-24 01:30:55,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:55,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958673139] [2024-11-24 01:30:55,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:55,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:58,396 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:30:58,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:58,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958673139] [2024-11-24 01:30:58,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958673139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:30:58,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:30:58,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:30:58,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141284283] [2024-11-24 01:30:58,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:30:58,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:30:58,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:58,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:30:58,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:30:58,399 INFO L87 Difference]: Start difference. First operand 1288 states and 2089 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:31:00,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:00,154 INFO L93 Difference]: Finished difference Result 3757 states and 6026 transitions. [2024-11-24 01:31:00,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:31:00,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-24 01:31:00,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:00,174 INFO L225 Difference]: With dead ends: 3757 [2024-11-24 01:31:00,175 INFO L226 Difference]: Without dead ends: 2850 [2024-11-24 01:31:00,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:31:00,179 INFO L435 NwaCegarLoop]: 629 mSDtfsCounter, 1164 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:00,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 1764 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:31:00,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2024-11-24 01:31:00,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2327. [2024-11-24 01:31:00,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2122 states have (on average 1.5749293119698398) internal successors, (3342), 2127 states have internal predecessors, (3342), 195 states have call successors, (195), 9 states have call predecessors, (195), 9 states have return successors, (195), 190 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-24 01:31:00,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3732 transitions. [2024-11-24 01:31:00,475 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3732 transitions. Word has length 471 [2024-11-24 01:31:00,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:00,479 INFO L471 AbstractCegarLoop]: Abstraction has 2327 states and 3732 transitions. [2024-11-24 01:31:00,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:31:00,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3732 transitions. [2024-11-24 01:31:00,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-24 01:31:00,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:00,493 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:00,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:31:00,493 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:31:00,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:00,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1372532140, now seen corresponding path program 1 times [2024-11-24 01:31:00,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:00,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359435352] [2024-11-24 01:31:00,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:00,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:01,034 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:31:01,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:01,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359435352] [2024-11-24 01:31:01,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359435352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:01,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:01,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:31:01,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261844657] [2024-11-24 01:31:01,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:01,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:31:01,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:01,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:31:01,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:31:01,038 INFO L87 Difference]: Start difference. First operand 2327 states and 3732 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:31:01,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:01,339 INFO L93 Difference]: Finished difference Result 4640 states and 7445 transitions. [2024-11-24 01:31:01,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:31:01,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-24 01:31:01,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:01,356 INFO L225 Difference]: With dead ends: 4640 [2024-11-24 01:31:01,357 INFO L226 Difference]: Without dead ends: 2706 [2024-11-24 01:31:01,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:31:01,362 INFO L435 NwaCegarLoop]: 626 mSDtfsCounter, 393 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:01,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 1048 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:31:01,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2024-11-24 01:31:01,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 2652. [2024-11-24 01:31:01,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2652 states, 2368 states have (on average 1.554054054054054) internal successors, (3680), 2375 states have internal predecessors, (3680), 271 states have call successors, (271), 12 states have call predecessors, (271), 12 states have return successors, (271), 264 states have call predecessors, (271), 271 states have call successors, (271) [2024-11-24 01:31:01,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 4222 transitions. [2024-11-24 01:31:01,583 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 4222 transitions. Word has length 471 [2024-11-24 01:31:01,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:01,584 INFO L471 AbstractCegarLoop]: Abstraction has 2652 states and 4222 transitions. [2024-11-24 01:31:01,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:31:01,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 4222 transitions. [2024-11-24 01:31:01,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-24 01:31:01,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:01,593 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:01,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:31:01,594 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:31:01,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:01,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1302192, now seen corresponding path program 1 times [2024-11-24 01:31:01,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:01,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454886632] [2024-11-24 01:31:01,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:01,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:11,005 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:31:11,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:11,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454886632] [2024-11-24 01:31:11,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454886632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:11,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:11,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:31:11,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780826796] [2024-11-24 01:31:11,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:11,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:31:11,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:11,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:31:11,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:31:11,012 INFO L87 Difference]: Start difference. First operand 2652 states and 4222 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 3 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2024-11-24 01:31:16,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:16,329 INFO L93 Difference]: Finished difference Result 9224 states and 14738 transitions. [2024-11-24 01:31:16,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:31:16,331 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 3 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 471 [2024-11-24 01:31:16,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:16,368 INFO L225 Difference]: With dead ends: 9224 [2024-11-24 01:31:16,368 INFO L226 Difference]: Without dead ends: 6721 [2024-11-24 01:31:16,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:31:16,378 INFO L435 NwaCegarLoop]: 386 mSDtfsCounter, 1916 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1916 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:16,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1916 Valid, 1920 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-24 01:31:16,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2024-11-24 01:31:16,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 2755. [2024-11-24 01:31:16,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2471 states have (on average 1.5515985430999595) internal successors, (3834), 2478 states have internal predecessors, (3834), 271 states have call successors, (271), 12 states have call predecessors, (271), 12 states have return successors, (271), 264 states have call predecessors, (271), 271 states have call successors, (271) [2024-11-24 01:31:16,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 4376 transitions. [2024-11-24 01:31:16,662 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 4376 transitions. Word has length 471 [2024-11-24 01:31:16,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:16,664 INFO L471 AbstractCegarLoop]: Abstraction has 2755 states and 4376 transitions. [2024-11-24 01:31:16,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 3 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2024-11-24 01:31:16,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 4376 transitions. [2024-11-24 01:31:16,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-24 01:31:16,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:16,674 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:16,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:31:16,675 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:31:16,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:16,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1687482030, now seen corresponding path program 1 times [2024-11-24 01:31:16,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:16,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962161428] [2024-11-24 01:31:16,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:16,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:31:20,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:20,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962161428] [2024-11-24 01:31:20,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962161428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:20,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:20,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:31:20,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227834729] [2024-11-24 01:31:20,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:20,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:31:20,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:20,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:31:20,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:31:20,095 INFO L87 Difference]: Start difference. First operand 2755 states and 4376 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2024-11-24 01:31:22,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:22,163 INFO L93 Difference]: Finished difference Result 6506 states and 10337 transitions. [2024-11-24 01:31:22,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:31:22,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 471 [2024-11-24 01:31:22,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:22,189 INFO L225 Difference]: With dead ends: 6506 [2024-11-24 01:31:22,190 INFO L226 Difference]: Without dead ends: 4277 [2024-11-24 01:31:22,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:31:22,197 INFO L435 NwaCegarLoop]: 441 mSDtfsCounter, 648 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:22,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1257 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 01:31:22,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4277 states. [2024-11-24 01:31:22,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4277 to 2779. [2024-11-24 01:31:22,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2779 states, 2495 states have (on average 1.5486973947895792) internal successors, (3864), 2502 states have internal predecessors, (3864), 271 states have call successors, (271), 12 states have call predecessors, (271), 12 states have return successors, (271), 264 states have call predecessors, (271), 271 states have call successors, (271) [2024-11-24 01:31:22,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 4406 transitions. [2024-11-24 01:31:22,459 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 4406 transitions. Word has length 471 [2024-11-24 01:31:22,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:22,460 INFO L471 AbstractCegarLoop]: Abstraction has 2779 states and 4406 transitions. [2024-11-24 01:31:22,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2024-11-24 01:31:22,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 4406 transitions. [2024-11-24 01:31:22,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-24 01:31:22,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:22,470 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:22,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:31:22,470 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:31:22,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:22,471 INFO L85 PathProgramCache]: Analyzing trace with hash 2126405008, now seen corresponding path program 1 times [2024-11-24 01:31:22,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:22,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793176260] [2024-11-24 01:31:22,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:22,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:33,200 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:31:33,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:33,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793176260] [2024-11-24 01:31:33,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793176260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:33,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:33,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:31:33,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207899981] [2024-11-24 01:31:33,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:33,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:31:33,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:33,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:31:33,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:31:33,204 INFO L87 Difference]: Start difference. First operand 2779 states and 4406 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:31:37,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:37,026 INFO L93 Difference]: Finished difference Result 7055 states and 11143 transitions. [2024-11-24 01:31:37,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:31:37,027 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-24 01:31:37,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:37,048 INFO L225 Difference]: With dead ends: 7055 [2024-11-24 01:31:37,048 INFO L226 Difference]: Without dead ends: 4898 [2024-11-24 01:31:37,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:31:37,055 INFO L435 NwaCegarLoop]: 411 mSDtfsCounter, 1692 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 2340 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:37,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 2340 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 01:31:37,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2024-11-24 01:31:37,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 4097. [2024-11-24 01:31:37,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4097 states, 3813 states have (on average 1.5630736952530815) internal successors, (5960), 3820 states have internal predecessors, (5960), 271 states have call successors, (271), 12 states have call predecessors, (271), 12 states have return successors, (271), 264 states have call predecessors, (271), 271 states have call successors, (271) [2024-11-24 01:31:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4097 states to 4097 states and 6502 transitions. [2024-11-24 01:31:37,517 INFO L78 Accepts]: Start accepts. Automaton has 4097 states and 6502 transitions. Word has length 471 [2024-11-24 01:31:37,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:37,523 INFO L471 AbstractCegarLoop]: Abstraction has 4097 states and 6502 transitions. [2024-11-24 01:31:37,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:31:37,523 INFO L276 IsEmpty]: Start isEmpty. Operand 4097 states and 6502 transitions. [2024-11-24 01:31:37,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-24 01:31:37,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:37,542 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:37,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:31:37,543 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:31:37,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:37,544 INFO L85 PathProgramCache]: Analyzing trace with hash 754597710, now seen corresponding path program 1 times [2024-11-24 01:31:37,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:37,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871074518] [2024-11-24 01:31:37,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:37,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:31:48,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:48,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871074518] [2024-11-24 01:31:48,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871074518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:48,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:48,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:31:48,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315858579] [2024-11-24 01:31:48,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:48,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:31:48,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:48,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:31:48,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:31:48,451 INFO L87 Difference]: Start difference. First operand 4097 states and 6502 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:31:54,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:54,470 INFO L93 Difference]: Finished difference Result 9377 states and 14861 transitions. [2024-11-24 01:31:54,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:31:54,472 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-24 01:31:54,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:54,552 INFO L225 Difference]: With dead ends: 9377 [2024-11-24 01:31:54,556 INFO L226 Difference]: Without dead ends: 6141 [2024-11-24 01:31:54,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=115, Invalid=191, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:31:54,578 INFO L435 NwaCegarLoop]: 444 mSDtfsCounter, 1479 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:54,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 2001 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-24 01:31:54,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6141 states. [2024-11-24 01:31:54,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6141 to 3901. [2024-11-24 01:31:54,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3901 states, 3592 states have (on average 1.5570712694877507) internal successors, (5593), 3602 states have internal predecessors, (5593), 289 states have call successors, (289), 19 states have call predecessors, (289), 19 states have return successors, (289), 279 states have call predecessors, (289), 289 states have call successors, (289) [2024-11-24 01:31:55,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3901 states to 3901 states and 6171 transitions. [2024-11-24 01:31:55,019 INFO L78 Accepts]: Start accepts. Automaton has 3901 states and 6171 transitions. Word has length 471 [2024-11-24 01:31:55,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:55,021 INFO L471 AbstractCegarLoop]: Abstraction has 3901 states and 6171 transitions. [2024-11-24 01:31:55,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:31:55,021 INFO L276 IsEmpty]: Start isEmpty. Operand 3901 states and 6171 transitions. [2024-11-24 01:31:55,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-24 01:31:55,043 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:55,043 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:55,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:31:55,048 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:31:55,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:55,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1837755777, now seen corresponding path program 1 times [2024-11-24 01:31:55,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:55,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085330913] [2024-11-24 01:31:55,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:55,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:55,506 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:31:55,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:55,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085330913] [2024-11-24 01:31:55,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085330913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:55,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:55,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:31:55,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196326206] [2024-11-24 01:31:55,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:55,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:31:55,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:55,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:31:55,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:31:55,513 INFO L87 Difference]: Start difference. First operand 3901 states and 6171 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:31:55,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:55,770 INFO L93 Difference]: Finished difference Result 6441 states and 10188 transitions. [2024-11-24 01:31:55,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:31:55,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 472 [2024-11-24 01:31:55,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:55,803 INFO L225 Difference]: With dead ends: 6441 [2024-11-24 01:31:55,807 INFO L226 Difference]: Without dead ends: 2934 [2024-11-24 01:31:55,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:31:55,822 INFO L435 NwaCegarLoop]: 657 mSDtfsCounter, 260 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:55,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1073 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:31:55,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2024-11-24 01:31:56,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2929. [2024-11-24 01:31:56,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 2642 states have (on average 1.5401211203633611) internal successors, (4069), 2648 states have internal predecessors, (4069), 265 states have call successors, (265), 21 states have call predecessors, (265), 21 states have return successors, (265), 259 states have call predecessors, (265), 265 states have call successors, (265) [2024-11-24 01:31:56,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 4599 transitions. [2024-11-24 01:31:56,252 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 4599 transitions. Word has length 472 [2024-11-24 01:31:56,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:56,254 INFO L471 AbstractCegarLoop]: Abstraction has 2929 states and 4599 transitions. [2024-11-24 01:31:56,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:31:56,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 4599 transitions. [2024-11-24 01:31:56,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-24 01:31:56,266 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:56,267 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:56,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:31:56,268 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:31:56,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:56,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1105788351, now seen corresponding path program 1 times [2024-11-24 01:31:56,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:56,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380487236] [2024-11-24 01:31:56,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:56,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:57,521 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:31:57,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:57,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380487236] [2024-11-24 01:31:57,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380487236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:57,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:57,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:31:57,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049347770] [2024-11-24 01:31:57,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:57,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:31:57,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:57,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:31:57,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:31:57,528 INFO L87 Difference]: Start difference. First operand 2929 states and 4599 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:31:58,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:58,287 INFO L93 Difference]: Finished difference Result 5430 states and 8557 transitions. [2024-11-24 01:31:58,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:31:58,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 472 [2024-11-24 01:31:58,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:58,307 INFO L225 Difference]: With dead ends: 5430 [2024-11-24 01:31:58,307 INFO L226 Difference]: Without dead ends: 3122 [2024-11-24 01:31:58,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:31:58,314 INFO L435 NwaCegarLoop]: 777 mSDtfsCounter, 628 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:58,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 2374 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:31:58,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2024-11-24 01:31:58,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 2987. [2024-11-24 01:31:58,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2987 states, 2700 states have (on average 1.5407407407407407) internal successors, (4160), 2706 states have internal predecessors, (4160), 265 states have call successors, (265), 21 states have call predecessors, (265), 21 states have return successors, (265), 259 states have call predecessors, (265), 265 states have call successors, (265) [2024-11-24 01:31:58,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2987 states to 2987 states and 4690 transitions. [2024-11-24 01:31:58,548 INFO L78 Accepts]: Start accepts. Automaton has 2987 states and 4690 transitions. Word has length 472 [2024-11-24 01:31:58,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:58,550 INFO L471 AbstractCegarLoop]: Abstraction has 2987 states and 4690 transitions. [2024-11-24 01:31:58,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:31:58,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2987 states and 4690 transitions. [2024-11-24 01:31:58,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:31:58,575 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:58,576 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:58,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:31:58,577 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:31:58,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:58,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1604595822, now seen corresponding path program 1 times [2024-11-24 01:31:58,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:58,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661040243] [2024-11-24 01:31:58,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:58,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:59,491 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:31:59,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:59,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661040243] [2024-11-24 01:31:59,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661040243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:59,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:59,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:31:59,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811442469] [2024-11-24 01:31:59,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:59,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:31:59,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:59,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:31:59,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:31:59,497 INFO L87 Difference]: Start difference. First operand 2987 states and 4690 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:00,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:00,103 INFO L93 Difference]: Finished difference Result 9770 states and 15365 transitions. [2024-11-24 01:32:00,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:32:00,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-24 01:32:00,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:00,126 INFO L225 Difference]: With dead ends: 9770 [2024-11-24 01:32:00,127 INFO L226 Difference]: Without dead ends: 7140 [2024-11-24 01:32:00,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:32:00,133 INFO L435 NwaCegarLoop]: 792 mSDtfsCounter, 524 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:00,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1452 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:32:00,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7140 states. [2024-11-24 01:32:00,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7140 to 5979. [2024-11-24 01:32:00,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5979 states, 5548 states have (on average 1.5450612833453496) internal successors, (8572), 5561 states have internal predecessors, (8572), 392 states have call successors, (392), 38 states have call predecessors, (392), 38 states have return successors, (392), 379 states have call predecessors, (392), 392 states have call successors, (392) [2024-11-24 01:32:00,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5979 states to 5979 states and 9356 transitions. [2024-11-24 01:32:00,661 INFO L78 Accepts]: Start accepts. Automaton has 5979 states and 9356 transitions. Word has length 473 [2024-11-24 01:32:00,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:00,665 INFO L471 AbstractCegarLoop]: Abstraction has 5979 states and 9356 transitions. [2024-11-24 01:32:00,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:00,666 INFO L276 IsEmpty]: Start isEmpty. Operand 5979 states and 9356 transitions. [2024-11-24 01:32:00,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:32:00,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:00,684 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:00,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:32:00,684 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:00,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:00,685 INFO L85 PathProgramCache]: Analyzing trace with hash 548103814, now seen corresponding path program 1 times [2024-11-24 01:32:00,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:00,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397849786] [2024-11-24 01:32:00,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:00,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:07,822 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:32:07,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:07,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397849786] [2024-11-24 01:32:07,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397849786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:07,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:07,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:32:07,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360242759] [2024-11-24 01:32:07,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:07,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:32:07,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:07,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:32:07,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:32:07,827 INFO L87 Difference]: Start difference. First operand 5979 states and 9356 transitions. Second operand has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 5 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) [2024-11-24 01:32:12,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:12,670 INFO L93 Difference]: Finished difference Result 21153 states and 33478 transitions. [2024-11-24 01:32:12,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:32:12,671 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 5 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) Word has length 473 [2024-11-24 01:32:12,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:12,718 INFO L225 Difference]: With dead ends: 21153 [2024-11-24 01:32:12,718 INFO L226 Difference]: Without dead ends: 15903 [2024-11-24 01:32:12,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:32:12,730 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 2598 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:12,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2598 Valid, 2519 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-24 01:32:12,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15903 states. [2024-11-24 01:32:13,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15903 to 5989. [2024-11-24 01:32:13,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5989 states, 5558 states have (on average 1.545160129543001) internal successors, (8588), 5571 states have internal predecessors, (8588), 392 states have call successors, (392), 38 states have call predecessors, (392), 38 states have return successors, (392), 379 states have call predecessors, (392), 392 states have call successors, (392) [2024-11-24 01:32:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5989 states to 5989 states and 9372 transitions. [2024-11-24 01:32:13,094 INFO L78 Accepts]: Start accepts. Automaton has 5989 states and 9372 transitions. Word has length 473 [2024-11-24 01:32:13,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:13,096 INFO L471 AbstractCegarLoop]: Abstraction has 5989 states and 9372 transitions. [2024-11-24 01:32:13,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 5 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) [2024-11-24 01:32:13,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5989 states and 9372 transitions. [2024-11-24 01:32:13,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:32:13,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:13,107 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:13,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:32:13,107 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:13,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:13,108 INFO L85 PathProgramCache]: Analyzing trace with hash -183863612, now seen corresponding path program 1 times [2024-11-24 01:32:13,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:13,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189473313] [2024-11-24 01:32:13,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:13,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:32:14,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:14,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189473313] [2024-11-24 01:32:14,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189473313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:14,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:14,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:32:14,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029253798] [2024-11-24 01:32:14,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:14,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:32:14,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:14,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:32:14,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:32:14,143 INFO L87 Difference]: Start difference. First operand 5989 states and 9372 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:15,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:15,094 INFO L93 Difference]: Finished difference Result 15657 states and 24633 transitions. [2024-11-24 01:32:15,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:32:15,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-24 01:32:15,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:15,127 INFO L225 Difference]: With dead ends: 15657 [2024-11-24 01:32:15,127 INFO L226 Difference]: Without dead ends: 10713 [2024-11-24 01:32:15,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:32:15,139 INFO L435 NwaCegarLoop]: 762 mSDtfsCounter, 818 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:15,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 2414 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:32:15,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10713 states. [2024-11-24 01:32:15,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10713 to 9755. [2024-11-24 01:32:15,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9755 states, 9324 states have (on average 1.5637065637065637) internal successors, (14580), 9337 states have internal predecessors, (14580), 392 states have call successors, (392), 38 states have call predecessors, (392), 38 states have return successors, (392), 379 states have call predecessors, (392), 392 states have call successors, (392) [2024-11-24 01:32:15,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9755 states to 9755 states and 15364 transitions. [2024-11-24 01:32:15,615 INFO L78 Accepts]: Start accepts. Automaton has 9755 states and 15364 transitions. Word has length 473 [2024-11-24 01:32:15,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:15,616 INFO L471 AbstractCegarLoop]: Abstraction has 9755 states and 15364 transitions. [2024-11-24 01:32:15,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:15,616 INFO L276 IsEmpty]: Start isEmpty. Operand 9755 states and 15364 transitions. [2024-11-24 01:32:15,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:32:15,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:15,638 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:15,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:32:15,639 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:15,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:15,640 INFO L85 PathProgramCache]: Analyzing trace with hash -238256510, now seen corresponding path program 1 times [2024-11-24 01:32:15,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:15,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096112183] [2024-11-24 01:32:15,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:15,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:17,459 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:32:17,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:17,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096112183] [2024-11-24 01:32:17,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096112183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:17,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:17,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:32:17,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221580408] [2024-11-24 01:32:17,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:17,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:32:17,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:17,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:32:17,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:32:17,461 INFO L87 Difference]: Start difference. First operand 9755 states and 15364 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:19,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:19,105 INFO L93 Difference]: Finished difference Result 28697 states and 45254 transitions. [2024-11-24 01:32:19,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:32:19,105 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-24 01:32:19,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:19,150 INFO L225 Difference]: With dead ends: 28697 [2024-11-24 01:32:19,151 INFO L226 Difference]: Without dead ends: 20587 [2024-11-24 01:32:19,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:32:19,162 INFO L435 NwaCegarLoop]: 717 mSDtfsCounter, 983 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:19,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 2170 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:32:19,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20587 states. [2024-11-24 01:32:19,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20587 to 15002. [2024-11-24 01:32:19,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15002 states, 14356 states have (on average 1.5596962942323767) internal successors, (22391), 14376 states have internal predecessors, (22391), 587 states have call successors, (587), 58 states have call predecessors, (587), 58 states have return successors, (587), 567 states have call predecessors, (587), 587 states have call successors, (587) [2024-11-24 01:32:19,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15002 states to 15002 states and 23565 transitions. [2024-11-24 01:32:19,785 INFO L78 Accepts]: Start accepts. Automaton has 15002 states and 23565 transitions. Word has length 473 [2024-11-24 01:32:19,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:19,786 INFO L471 AbstractCegarLoop]: Abstraction has 15002 states and 23565 transitions. [2024-11-24 01:32:19,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:19,786 INFO L276 IsEmpty]: Start isEmpty. Operand 15002 states and 23565 transitions. [2024-11-24 01:32:19,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:32:19,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:19,806 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:19,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:32:19,807 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:19,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:19,807 INFO L85 PathProgramCache]: Analyzing trace with hash -429381488, now seen corresponding path program 1 times [2024-11-24 01:32:19,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:19,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665991463] [2024-11-24 01:32:19,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:19,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:21,310 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:32:21,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:21,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665991463] [2024-11-24 01:32:21,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665991463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:21,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:21,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:32:21,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545173931] [2024-11-24 01:32:21,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:21,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:32:21,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:21,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:32:21,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:32:21,315 INFO L87 Difference]: Start difference. First operand 15002 states and 23565 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:22,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:22,275 INFO L93 Difference]: Finished difference Result 34913 states and 54987 transitions. [2024-11-24 01:32:22,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:32:22,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-24 01:32:22,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:22,325 INFO L225 Difference]: With dead ends: 34913 [2024-11-24 01:32:22,325 INFO L226 Difference]: Without dead ends: 21334 [2024-11-24 01:32:22,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:32:22,350 INFO L435 NwaCegarLoop]: 525 mSDtfsCounter, 873 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:22,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 1198 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:32:22,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21334 states. [2024-11-24 01:32:23,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21334 to 17309. [2024-11-24 01:32:23,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17309 states, 16616 states have (on average 1.5597014925373134) internal successors, (25916), 16638 states have internal predecessors, (25916), 628 states have call successors, (628), 64 states have call predecessors, (628), 64 states have return successors, (628), 606 states have call predecessors, (628), 628 states have call successors, (628) [2024-11-24 01:32:23,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17309 states to 17309 states and 27172 transitions. [2024-11-24 01:32:23,185 INFO L78 Accepts]: Start accepts. Automaton has 17309 states and 27172 transitions. Word has length 473 [2024-11-24 01:32:23,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:23,186 INFO L471 AbstractCegarLoop]: Abstraction has 17309 states and 27172 transitions. [2024-11-24 01:32:23,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:23,187 INFO L276 IsEmpty]: Start isEmpty. Operand 17309 states and 27172 transitions. [2024-11-24 01:32:23,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:32:23,210 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:23,211 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:23,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:32:23,211 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:23,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:23,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1532309574, now seen corresponding path program 1 times [2024-11-24 01:32:23,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:23,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836605211] [2024-11-24 01:32:23,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:23,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:24,212 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:32:24,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:24,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836605211] [2024-11-24 01:32:24,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836605211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:24,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:24,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:32:24,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868595314] [2024-11-24 01:32:24,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:24,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:32:24,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:24,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:32:24,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:32:24,217 INFO L87 Difference]: Start difference. First operand 17309 states and 27172 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:25,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:25,036 INFO L93 Difference]: Finished difference Result 44073 states and 69837 transitions. [2024-11-24 01:32:25,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:32:25,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-24 01:32:25,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:25,096 INFO L225 Difference]: With dead ends: 44073 [2024-11-24 01:32:25,096 INFO L226 Difference]: Without dead ends: 30237 [2024-11-24 01:32:25,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:32:25,119 INFO L435 NwaCegarLoop]: 504 mSDtfsCounter, 560 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:25,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 1379 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:32:25,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30237 states. [2024-11-24 01:32:25,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30237 to 20012. [2024-11-24 01:32:25,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20012 states, 19190 states have (on average 1.5609171443460135) internal successors, (29954), 19215 states have internal predecessors, (29954), 745 states have call successors, (745), 76 states have call predecessors, (745), 76 states have return successors, (745), 720 states have call predecessors, (745), 745 states have call successors, (745) [2024-11-24 01:32:25,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20012 states to 20012 states and 31444 transitions. [2024-11-24 01:32:25,977 INFO L78 Accepts]: Start accepts. Automaton has 20012 states and 31444 transitions. Word has length 473 [2024-11-24 01:32:25,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:25,978 INFO L471 AbstractCegarLoop]: Abstraction has 20012 states and 31444 transitions. [2024-11-24 01:32:25,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:25,979 INFO L276 IsEmpty]: Start isEmpty. Operand 20012 states and 31444 transitions. [2024-11-24 01:32:25,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:32:25,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:25,998 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:25,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:32:25,998 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:25,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:25,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1509677320, now seen corresponding path program 1 times [2024-11-24 01:32:25,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:25,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257980885] [2024-11-24 01:32:25,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:26,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:27,986 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:32:27,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:27,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257980885] [2024-11-24 01:32:27,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257980885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:27,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:27,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:32:27,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000155772] [2024-11-24 01:32:27,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:27,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:32:27,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:27,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:32:27,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:32:27,988 INFO L87 Difference]: Start difference. First operand 20012 states and 31444 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:29,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:29,241 INFO L93 Difference]: Finished difference Result 41438 states and 65347 transitions. [2024-11-24 01:32:29,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:32:29,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-24 01:32:29,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:29,282 INFO L225 Difference]: With dead ends: 41438 [2024-11-24 01:32:29,282 INFO L226 Difference]: Without dead ends: 24674 [2024-11-24 01:32:29,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:32:29,296 INFO L435 NwaCegarLoop]: 748 mSDtfsCounter, 889 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:29,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 1947 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:32:29,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24674 states. [2024-11-24 01:32:30,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24674 to 21386. [2024-11-24 01:32:30,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21386 states, 20564 states have (on average 1.5585002917720288) internal successors, (32049), 20589 states have internal predecessors, (32049), 745 states have call successors, (745), 76 states have call predecessors, (745), 76 states have return successors, (745), 720 states have call predecessors, (745), 745 states have call successors, (745) [2024-11-24 01:32:30,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21386 states to 21386 states and 33539 transitions. [2024-11-24 01:32:30,125 INFO L78 Accepts]: Start accepts. Automaton has 21386 states and 33539 transitions. Word has length 473 [2024-11-24 01:32:30,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:30,126 INFO L471 AbstractCegarLoop]: Abstraction has 21386 states and 33539 transitions. [2024-11-24 01:32:30,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:30,126 INFO L276 IsEmpty]: Start isEmpty. Operand 21386 states and 33539 transitions. [2024-11-24 01:32:30,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:32:30,139 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:30,139 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:30,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:32:30,140 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:30,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:30,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1731186554, now seen corresponding path program 1 times [2024-11-24 01:32:30,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:30,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673849666] [2024-11-24 01:32:30,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:30,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:30,606 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:32:30,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:30,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673849666] [2024-11-24 01:32:30,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673849666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:30,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:30,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:32:30,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727409946] [2024-11-24 01:32:30,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:30,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:32:30,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:30,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:32:30,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:32:30,609 INFO L87 Difference]: Start difference. First operand 21386 states and 33539 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:32,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:32,596 INFO L93 Difference]: Finished difference Result 71821 states and 112995 transitions. [2024-11-24 01:32:32,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:32:32,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-24 01:32:32,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:32,698 INFO L225 Difference]: With dead ends: 71821 [2024-11-24 01:32:32,698 INFO L226 Difference]: Without dead ends: 54166 [2024-11-24 01:32:32,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:32:32,732 INFO L435 NwaCegarLoop]: 934 mSDtfsCounter, 844 mSDsluCounter, 2075 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 3009 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:32,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 3009 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:32:32,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54166 states. [2024-11-24 01:32:34,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54166 to 37260. [2024-11-24 01:32:34,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37260 states, 35689 states have (on average 1.557398638235871) internal successors, (55582), 35739 states have internal predecessors, (55582), 1422 states have call successors, (1422), 148 states have call predecessors, (1422), 148 states have return successors, (1422), 1372 states have call predecessors, (1422), 1422 states have call successors, (1422) [2024-11-24 01:32:34,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37260 states to 37260 states and 58426 transitions. [2024-11-24 01:32:34,670 INFO L78 Accepts]: Start accepts. Automaton has 37260 states and 58426 transitions. Word has length 473 [2024-11-24 01:32:34,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:34,670 INFO L471 AbstractCegarLoop]: Abstraction has 37260 states and 58426 transitions. [2024-11-24 01:32:34,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:34,670 INFO L276 IsEmpty]: Start isEmpty. Operand 37260 states and 58426 transitions. [2024-11-24 01:32:34,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:32:34,697 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:34,698 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:34,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 01:32:34,698 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:34,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:34,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1904249220, now seen corresponding path program 1 times [2024-11-24 01:32:34,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:34,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827258845] [2024-11-24 01:32:34,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:34,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:35,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:36,541 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:32:36,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:36,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827258845] [2024-11-24 01:32:36,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827258845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:36,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:36,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:32:36,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244411796] [2024-11-24 01:32:36,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:36,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:32:36,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:36,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:32:36,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:32:36,543 INFO L87 Difference]: Start difference. First operand 37260 states and 58426 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:39,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:39,342 INFO L93 Difference]: Finished difference Result 77971 states and 122235 transitions. [2024-11-24 01:32:39,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:32:39,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-24 01:32:39,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:39,433 INFO L225 Difference]: With dead ends: 77971 [2024-11-24 01:32:39,433 INFO L226 Difference]: Without dead ends: 40192 [2024-11-24 01:32:39,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:32:39,479 INFO L435 NwaCegarLoop]: 943 mSDtfsCounter, 1199 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:39,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 2869 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:32:39,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40192 states. [2024-11-24 01:32:40,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40192 to 32877. [2024-11-24 01:32:40,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32877 states, 31356 states have (on average 1.549464217374665) internal successors, (48585), 31400 states have internal predecessors, (48585), 1378 states have call successors, (1378), 142 states have call predecessors, (1378), 142 states have return successors, (1378), 1334 states have call predecessors, (1378), 1378 states have call successors, (1378) [2024-11-24 01:32:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32877 states to 32877 states and 51341 transitions. [2024-11-24 01:32:40,856 INFO L78 Accepts]: Start accepts. Automaton has 32877 states and 51341 transitions. Word has length 473 [2024-11-24 01:32:40,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:40,857 INFO L471 AbstractCegarLoop]: Abstraction has 32877 states and 51341 transitions. [2024-11-24 01:32:40,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:40,857 INFO L276 IsEmpty]: Start isEmpty. Operand 32877 states and 51341 transitions. [2024-11-24 01:32:40,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:32:40,878 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:40,878 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:40,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 01:32:40,879 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:40,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:40,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1125479356, now seen corresponding path program 1 times [2024-11-24 01:32:40,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:40,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296539694] [2024-11-24 01:32:40,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:40,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:32:42,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:42,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296539694] [2024-11-24 01:32:42,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296539694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:42,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:42,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:32:42,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846850366] [2024-11-24 01:32:42,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:42,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:32:42,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:42,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:32:42,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:32:42,338 INFO L87 Difference]: Start difference. First operand 32877 states and 51341 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:44,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:44,942 INFO L93 Difference]: Finished difference Result 83984 states and 131293 transitions. [2024-11-24 01:32:44,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:32:44,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-24 01:32:44,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:45,044 INFO L225 Difference]: With dead ends: 83984 [2024-11-24 01:32:45,044 INFO L226 Difference]: Without dead ends: 53401 [2024-11-24 01:32:45,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:32:45,089 INFO L435 NwaCegarLoop]: 712 mSDtfsCounter, 1128 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:45,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1128 Valid, 1890 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:32:45,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53401 states. [2024-11-24 01:32:46,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53401 to 42012. [2024-11-24 01:32:46,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42012 states, 40087 states have (on average 1.5510265173248186) internal successors, (62176), 40139 states have internal predecessors, (62176), 1748 states have call successors, (1748), 176 states have call predecessors, (1748), 176 states have return successors, (1748), 1696 states have call predecessors, (1748), 1748 states have call successors, (1748) [2024-11-24 01:32:46,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42012 states to 42012 states and 65672 transitions. [2024-11-24 01:32:46,823 INFO L78 Accepts]: Start accepts. Automaton has 42012 states and 65672 transitions. Word has length 473 [2024-11-24 01:32:46,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:46,824 INFO L471 AbstractCegarLoop]: Abstraction has 42012 states and 65672 transitions. [2024-11-24 01:32:46,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:46,824 INFO L276 IsEmpty]: Start isEmpty. Operand 42012 states and 65672 transitions. [2024-11-24 01:32:46,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:32:46,840 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:46,840 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:46,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 01:32:46,841 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:46,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:46,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1943697978, now seen corresponding path program 1 times [2024-11-24 01:32:46,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:46,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061054325] [2024-11-24 01:32:46,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:46,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:47,079 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:32:47,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:47,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061054325] [2024-11-24 01:32:47,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061054325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:47,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:47,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:32:47,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027927892] [2024-11-24 01:32:47,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:47,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:32:47,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:47,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:32:47,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:32:47,082 INFO L87 Difference]: Start difference. First operand 42012 states and 65672 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:49,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:49,055 INFO L93 Difference]: Finished difference Result 77831 states and 121199 transitions. [2024-11-24 01:32:49,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:32:49,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-24 01:32:49,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:49,141 INFO L225 Difference]: With dead ends: 77831 [2024-11-24 01:32:49,141 INFO L226 Difference]: Without dead ends: 39390 [2024-11-24 01:32:49,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:32:49,186 INFO L435 NwaCegarLoop]: 811 mSDtfsCounter, 403 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:49,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1235 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:32:49,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39390 states. [2024-11-24 01:32:51,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39390 to 34206. [2024-11-24 01:32:51,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34206 states, 32281 states have (on average 1.5160311018865587) internal successors, (48939), 32333 states have internal predecessors, (48939), 1748 states have call successors, (1748), 176 states have call predecessors, (1748), 176 states have return successors, (1748), 1696 states have call predecessors, (1748), 1748 states have call successors, (1748) [2024-11-24 01:32:51,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34206 states to 34206 states and 52435 transitions. [2024-11-24 01:32:51,623 INFO L78 Accepts]: Start accepts. Automaton has 34206 states and 52435 transitions. Word has length 473 [2024-11-24 01:32:51,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:51,624 INFO L471 AbstractCegarLoop]: Abstraction has 34206 states and 52435 transitions. [2024-11-24 01:32:51,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:32:51,625 INFO L276 IsEmpty]: Start isEmpty. Operand 34206 states and 52435 transitions. [2024-11-24 01:32:51,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:32:51,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:51,661 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:51,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 01:32:51,661 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:51,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:51,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1520051256, now seen corresponding path program 1 times [2024-11-24 01:32:51,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:51,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235315869] [2024-11-24 01:32:51,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:51,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:59,793 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:32:59,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:59,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235315869] [2024-11-24 01:32:59,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235315869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:59,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:59,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:32:59,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623515721] [2024-11-24 01:32:59,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:59,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:32:59,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:59,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:32:59,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:32:59,795 INFO L87 Difference]: Start difference. First operand 34206 states and 52435 transitions. Second operand has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 14 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:33:07,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:33:07,549 INFO L93 Difference]: Finished difference Result 89445 states and 136651 transitions. [2024-11-24 01:33:07,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 01:33:07,549 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 14 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-24 01:33:07,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:33:07,620 INFO L225 Difference]: With dead ends: 89445 [2024-11-24 01:33:07,620 INFO L226 Difference]: Without dead ends: 59125 [2024-11-24 01:33:07,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 01:33:07,653 INFO L435 NwaCegarLoop]: 661 mSDtfsCounter, 4129 mSDsluCounter, 3147 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4129 SdHoareTripleChecker+Valid, 3808 SdHoareTripleChecker+Invalid, 2135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:33:07,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4129 Valid, 3808 Invalid, 2135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-24 01:33:07,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59125 states. [2024-11-24 01:33:09,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59125 to 40219. [2024-11-24 01:33:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40219 states, 38294 states have (on average 1.5177573510210476) internal successors, (58121), 38346 states have internal predecessors, (58121), 1748 states have call successors, (1748), 176 states have call predecessors, (1748), 176 states have return successors, (1748), 1696 states have call predecessors, (1748), 1748 states have call successors, (1748) [2024-11-24 01:33:09,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40219 states to 40219 states and 61617 transitions. [2024-11-24 01:33:09,240 INFO L78 Accepts]: Start accepts. Automaton has 40219 states and 61617 transitions. Word has length 473 [2024-11-24 01:33:09,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:33:09,241 INFO L471 AbstractCegarLoop]: Abstraction has 40219 states and 61617 transitions. [2024-11-24 01:33:09,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 14 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:33:09,241 INFO L276 IsEmpty]: Start isEmpty. Operand 40219 states and 61617 transitions. [2024-11-24 01:33:09,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:33:09,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:33:09,258 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:33:09,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 01:33:09,258 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:33:09,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:33:09,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1086322170, now seen corresponding path program 1 times [2024-11-24 01:33:09,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:33:09,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692437579] [2024-11-24 01:33:09,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:33:09,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:33:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:33:09,458 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-24 01:33:09,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:33:09,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692437579] [2024-11-24 01:33:09,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692437579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:33:09,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:33:09,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:33:09,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776801416] [2024-11-24 01:33:09,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:33:09,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:33:09,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:33:09,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:33:09,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:33:09,460 INFO L87 Difference]: Start difference. First operand 40219 states and 61617 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-24 01:33:11,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:33:11,650 INFO L93 Difference]: Finished difference Result 101391 states and 156182 transitions. [2024-11-24 01:33:11,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:33:11,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-24 01:33:11,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:33:11,787 INFO L225 Difference]: With dead ends: 101391 [2024-11-24 01:33:11,787 INFO L226 Difference]: Without dead ends: 70595 [2024-11-24 01:33:11,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:33:11,818 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 372 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:33:11,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 1244 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:33:11,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70595 states.