./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-70.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB --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 259f18f71524139b1631e1c50b6bbb437c0ac4e6fa670637b91f9a128d4d72dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:04:31,463 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:04:31,574 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:04:31,584 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:04:31,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:04:31,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:04:31,636 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:04:31,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:04:31,637 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:04:31,638 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:04:31,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:04:31,639 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:04:31,639 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:04:31,640 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:04:31,640 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:04:31,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:04:31,641 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:04:31,641 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:04:31,641 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:04:31,641 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:04:31,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:04:31,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:04:31,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:04:31,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:04:31,643 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:04:31,643 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:04:31,643 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:04:31,643 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:04:31,643 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:04:31,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:04:31,644 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:04:31,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:04:31,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:04:31,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:04:31,644 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:04:31,644 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:04:31,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:04:31,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:04:31,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:04:31,644 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:04:31,645 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:04:31,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:04:31,645 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:04:31,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:04:31,645 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:04:31,645 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:04:31,645 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:04:31,645 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:04:31,645 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_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 259f18f71524139b1631e1c50b6bbb437c0ac4e6fa670637b91f9a128d4d72dd [2024-11-28 04:04:32,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:04:32,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:04:32,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:04:32,090 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:04:32,090 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:04:32,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-70.i [2024-11-28 04:04:35,747 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/data/1e1a2acc7/23b33d137d264d898000125ea8e9b775/FLAGd7e155a91 [2024-11-28 04:04:36,243 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:04:36,248 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-70.i [2024-11-28 04:04:36,276 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/data/1e1a2acc7/23b33d137d264d898000125ea8e9b775/FLAGd7e155a91 [2024-11-28 04:04:36,306 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/data/1e1a2acc7/23b33d137d264d898000125ea8e9b775 [2024-11-28 04:04:36,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:04:36,313 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:04:36,314 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:04:36,315 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:04:36,323 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:04:36,324 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:04:36" (1/1) ... [2024-11-28 04:04:36,325 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d45dbd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:36, skipping insertion in model container [2024-11-28 04:04:36,325 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:04:36" (1/1) ... [2024-11-28 04:04:36,401 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:04:36,655 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_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-70.i[916,929] [2024-11-28 04:04:36,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:04:37,007 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:04:37,022 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_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-70.i[916,929] [2024-11-28 04:04:37,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:04:37,243 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:04:37,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37 WrapperNode [2024-11-28 04:04:37,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:04:37,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:04:37,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:04:37,245 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:04:37,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37" (1/1) ... [2024-11-28 04:04:37,286 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37" (1/1) ... [2024-11-28 04:04:37,408 INFO L138 Inliner]: procedures = 26, calls = 139, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 928 [2024-11-28 04:04:37,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:04:37,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:04:37,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:04:37,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:04:37,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37" (1/1) ... [2024-11-28 04:04:37,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37" (1/1) ... [2024-11-28 04:04:37,450 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37" (1/1) ... [2024-11-28 04:04:37,542 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]. [2024-11-28 04:04:37,544 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37" (1/1) ... [2024-11-28 04:04:37,545 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37" (1/1) ... [2024-11-28 04:04:37,593 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37" (1/1) ... [2024-11-28 04:04:37,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37" (1/1) ... [2024-11-28 04:04:37,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37" (1/1) ... [2024-11-28 04:04:37,622 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37" (1/1) ... [2024-11-28 04:04:37,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37" (1/1) ... [2024-11-28 04:04:37,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:04:37,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:04:37,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:04:37,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:04:37,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37" (1/1) ... [2024-11-28 04:04:37,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:04:37,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:37,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:04:37,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:04:37,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:04:37,730 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:04:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:04:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:04:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:04:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:04:37,995 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:04:37,998 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:04:40,494 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-28 04:04:40,494 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:04:40,537 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:04:40,541 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:04:40,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:04:40 BoogieIcfgContainer [2024-11-28 04:04:40,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:04:40,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:04:40,545 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:04:40,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:04:40,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:04:36" (1/3) ... [2024-11-28 04:04:40,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@feec578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:04:40, skipping insertion in model container [2024-11-28 04:04:40,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:37" (2/3) ... [2024-11-28 04:04:40,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@feec578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:04:40, skipping insertion in model container [2024-11-28 04:04:40,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:04:40" (3/3) ... [2024-11-28 04:04:40,560 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-70.i [2024-11-28 04:04:40,582 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:04:40,588 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-70.i that has 2 procedures, 388 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:04:40,719 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:04:40,740 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;@68422998, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:04:40,741 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:04:40,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 388 states, 259 states have (on average 1.5752895752895753) internal successors, (408), 260 states have internal predecessors, (408), 126 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-28 04:04:40,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2024-11-28 04:04:40,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:40,854 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:40,855 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:40,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:40,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1179876460, now seen corresponding path program 1 times [2024-11-28 04:04:40,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:40,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774444181] [2024-11-28 04:04:40,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:40,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:42,313 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 31250 trivial. 0 not checked. [2024-11-28 04:04:42,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:42,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774444181] [2024-11-28 04:04:42,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774444181] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:42,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558044674] [2024-11-28 04:04:42,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:42,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:42,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:42,322 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:42,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:04:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:43,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 1738 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:04:43,246 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:43,400 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 31250 trivial. 0 not checked. [2024-11-28 04:04:43,400 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:43,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558044674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:43,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:43,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:04:43,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259954345] [2024-11-28 04:04:43,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:43,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:04:43,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:43,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:04:43,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:04:43,448 INFO L87 Difference]: Start difference. First operand has 388 states, 259 states have (on average 1.5752895752895753) internal successors, (408), 260 states have internal predecessors, (408), 126 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) Second operand has 2 states, 2 states have (on average 81.0) internal successors, (162), 2 states have internal predecessors, (162), 2 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 2 states have call successors, (126) [2024-11-28 04:04:43,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:43,604 INFO L93 Difference]: Finished difference Result 769 states and 1440 transitions. [2024-11-28 04:04:43,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:04:43,609 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 81.0) internal successors, (162), 2 states have internal predecessors, (162), 2 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 2 states have call successors, (126) Word has length 787 [2024-11-28 04:04:43,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:43,628 INFO L225 Difference]: With dead ends: 769 [2024-11-28 04:04:43,628 INFO L226 Difference]: Without dead ends: 384 [2024-11-28 04:04:43,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 788 GetRequests, 788 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:04:43,648 INFO L435 NwaCegarLoop]: 650 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:43,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:04:43,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-28 04:04:43,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-11-28 04:04:43,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 256 states have (on average 1.5546875) internal successors, (398), 256 states have internal predecessors, (398), 126 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-28 04:04:43,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 650 transitions. [2024-11-28 04:04:43,829 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 650 transitions. Word has length 787 [2024-11-28 04:04:43,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:43,830 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 650 transitions. [2024-11-28 04:04:43,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 81.0) internal successors, (162), 2 states have internal predecessors, (162), 2 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 2 states have call successors, (126) [2024-11-28 04:04:43,831 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 650 transitions. [2024-11-28 04:04:43,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2024-11-28 04:04:43,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:43,861 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:43,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:44,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d328aba-c7ac-4e2f-bdd0-70dedde4ecce/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:44,063 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:44,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:44,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1032955808, now seen corresponding path program 1 times [2024-11-28 04:04:44,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:44,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994410872] [2024-11-28 04:04:44,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:44,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:46,963 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-28 04:04:46,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:46,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994410872] [2024-11-28 04:04:46,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994410872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:46,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:46,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:04:46,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55093032] [2024-11-28 04:04:46,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:46,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:04:46,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:46,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:04:46,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:04:46,977 INFO L87 Difference]: Start difference. First operand 384 states and 650 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:04:47,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:48,000 INFO L93 Difference]: Finished difference Result 1146 states and 1944 transitions. [2024-11-28 04:04:48,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:04:48,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 787 [2024-11-28 04:04:48,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:48,022 INFO L225 Difference]: With dead ends: 1146 [2024-11-28 04:04:48,022 INFO L226 Difference]: Without dead ends: 765 [2024-11-28 04:04:48,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:04:48,027 INFO L435 NwaCegarLoop]: 641 mSDtfsCounter, 410 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:48,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1652 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:04:48,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-28 04:04:48,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 762. [2024-11-28 04:04:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 507 states have (on average 1.554240631163708) internal successors, (788), 507 states have internal predecessors, (788), 252 states have call successors, (252), 2 states have call predecessors, (252), 2 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-28 04:04:48,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1292 transitions. [2024-11-28 04:04:48,210 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1292 transitions. Word has length 787 [2024-11-28 04:04:48,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:48,213 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 1292 transitions. [2024-11-28 04:04:48,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:04:48,214 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1292 transitions. [2024-11-28 04:04:48,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2024-11-28 04:04:48,243 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:48,244 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:48,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:04:48,244 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:48,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:48,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1846140001, now seen corresponding path program 1 times [2024-11-28 04:04:48,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:48,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644723384] [2024-11-28 04:04:48,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:48,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:50,323 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-28 04:04:50,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:50,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644723384] [2024-11-28 04:04:50,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644723384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:50,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:50,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:04:50,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162263904] [2024-11-28 04:04:50,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:50,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:04:50,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:50,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:04:50,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:04:50,332 INFO L87 Difference]: Start difference. First operand 762 states and 1292 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:04:52,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:52,165 INFO L93 Difference]: Finished difference Result 1793 states and 3033 transitions. [2024-11-28 04:04:52,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:04:52,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 788 [2024-11-28 04:04:52,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:52,187 INFO L225 Difference]: With dead ends: 1793 [2024-11-28 04:04:52,187 INFO L226 Difference]: Without dead ends: 1034 [2024-11-28 04:04:52,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:04:52,192 INFO L435 NwaCegarLoop]: 805 mSDtfsCounter, 866 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:52,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 2763 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:04:52,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2024-11-28 04:04:52,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1026. [2024-11-28 04:04:52,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 674 states have (on average 1.5415430267062316) internal successors, (1039), 675 states have internal predecessors, (1039), 348 states have call successors, (348), 3 states have call predecessors, (348), 3 states have return successors, (348), 347 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-28 04:04:52,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1735 transitions. [2024-11-28 04:04:52,422 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1735 transitions. Word has length 788 [2024-11-28 04:04:52,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:52,425 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1735 transitions. [2024-11-28 04:04:52,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:04:52,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1735 transitions. [2024-11-28 04:04:52,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2024-11-28 04:04:52,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:52,444 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:52,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:04:52,444 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:52,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:52,445 INFO L85 PathProgramCache]: Analyzing trace with hash -689986306, now seen corresponding path program 1 times [2024-11-28 04:04:52,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:52,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849636752] [2024-11-28 04:04:52,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:52,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:54,504 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-28 04:04:54,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:54,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849636752] [2024-11-28 04:04:54,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849636752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:54,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:54,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:04:54,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743426427] [2024-11-28 04:04:54,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:54,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:04:54,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:54,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:04:54,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:04:54,512 INFO L87 Difference]: Start difference. First operand 1026 states and 1735 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:04:56,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:56,824 INFO L93 Difference]: Finished difference Result 5118 states and 8629 transitions. [2024-11-28 04:04:56,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:04:56,825 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 788 [2024-11-28 04:04:56,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:56,870 INFO L225 Difference]: With dead ends: 5118 [2024-11-28 04:04:56,870 INFO L226 Difference]: Without dead ends: 4095 [2024-11-28 04:04:56,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:04:56,879 INFO L435 NwaCegarLoop]: 923 mSDtfsCounter, 2562 mSDsluCounter, 2467 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2562 SdHoareTripleChecker+Valid, 3390 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:56,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2562 Valid, 3390 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:04:56,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4095 states. [2024-11-28 04:04:57,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4095 to 2269. [2024-11-28 04:04:57,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2269 states, 1833 states have (on average 1.6693944353518821) internal successors, (3060), 1837 states have internal predecessors, (3060), 429 states have call successors, (429), 6 states have call predecessors, (429), 6 states have return successors, (429), 425 states have call predecessors, (429), 429 states have call successors, (429) [2024-11-28 04:04:57,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 2269 states and 3918 transitions. [2024-11-28 04:04:57,348 INFO L78 Accepts]: Start accepts. Automaton has 2269 states and 3918 transitions. Word has length 788 [2024-11-28 04:04:57,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:57,351 INFO L471 AbstractCegarLoop]: Abstraction has 2269 states and 3918 transitions. [2024-11-28 04:04:57,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:04:57,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 3918 transitions. [2024-11-28 04:04:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2024-11-28 04:04:57,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:57,375 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:57,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:04:57,376 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:57,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:57,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1845068166, now seen corresponding path program 1 times [2024-11-28 04:04:57,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:57,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655052863] [2024-11-28 04:04:57,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:57,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:58,953 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-28 04:04:58,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:58,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655052863] [2024-11-28 04:04:58,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655052863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:58,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:58,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:04:58,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625063720] [2024-11-28 04:04:58,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:58,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:04:58,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:58,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:04:58,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:04:58,960 INFO L87 Difference]: Start difference. First operand 2269 states and 3918 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:04:59,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:59,905 INFO L93 Difference]: Finished difference Result 3766 states and 6497 transitions. [2024-11-28 04:04:59,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:04:59,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 788 [2024-11-28 04:04:59,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:59,932 INFO L225 Difference]: With dead ends: 3766 [2024-11-28 04:04:59,932 INFO L226 Difference]: Without dead ends: 2941 [2024-11-28 04:04:59,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:04:59,938 INFO L435 NwaCegarLoop]: 817 mSDtfsCounter, 643 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:59,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 2433 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:04:59,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2024-11-28 04:05:00,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2928. [2024-11-28 04:05:00,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2928 states, 2337 states have (on average 1.6615318784766795) internal successors, (3883), 2342 states have internal predecessors, (3883), 582 states have call successors, (582), 8 states have call predecessors, (582), 8 states have return successors, (582), 577 states have call predecessors, (582), 582 states have call successors, (582) [2024-11-28 04:05:00,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 5047 transitions. [2024-11-28 04:05:00,378 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 5047 transitions. Word has length 788 [2024-11-28 04:05:00,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:00,380 INFO L471 AbstractCegarLoop]: Abstraction has 2928 states and 5047 transitions. [2024-11-28 04:05:00,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:00,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 5047 transitions. [2024-11-28 04:05:00,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2024-11-28 04:05:00,394 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:00,395 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:00,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:05:00,395 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:00,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:00,396 INFO L85 PathProgramCache]: Analyzing trace with hash 911559100, now seen corresponding path program 1 times [2024-11-28 04:05:00,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:00,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897065233] [2024-11-28 04:05:00,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:00,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:02,064 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-28 04:05:02,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:02,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897065233] [2024-11-28 04:05:02,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897065233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:02,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:02,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:05:02,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746471328] [2024-11-28 04:05:02,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:02,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:05:02,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:02,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:05:02,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:05:02,096 INFO L87 Difference]: Start difference. First operand 2928 states and 5047 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:02,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:02,979 INFO L93 Difference]: Finished difference Result 9030 states and 15586 transitions. [2024-11-28 04:05:02,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:05:02,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 788 [2024-11-28 04:05:02,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:03,024 INFO L225 Difference]: With dead ends: 9030 [2024-11-28 04:05:03,024 INFO L226 Difference]: Without dead ends: 6105 [2024-11-28 04:05:03,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:05:03,037 INFO L435 NwaCegarLoop]: 746 mSDtfsCounter, 484 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:03,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 2079 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:05:03,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6105 states. [2024-11-28 04:05:03,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6105 to 5248. [2024-11-28 04:05:03,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5248 states, 4481 states have (on average 1.6940415085918321) internal successors, (7591), 4494 states have internal predecessors, (7591), 750 states have call successors, (750), 16 states have call predecessors, (750), 16 states have return successors, (750), 737 states have call predecessors, (750), 750 states have call successors, (750) [2024-11-28 04:05:03,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5248 states to 5248 states and 9091 transitions. [2024-11-28 04:05:03,664 INFO L78 Accepts]: Start accepts. Automaton has 5248 states and 9091 transitions. Word has length 788 [2024-11-28 04:05:03,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:03,666 INFO L471 AbstractCegarLoop]: Abstraction has 5248 states and 9091 transitions. [2024-11-28 04:05:03,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:03,667 INFO L276 IsEmpty]: Start isEmpty. Operand 5248 states and 9091 transitions. [2024-11-28 04:05:03,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2024-11-28 04:05:03,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:03,686 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:03,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:05:03,686 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:03,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:03,687 INFO L85 PathProgramCache]: Analyzing trace with hash 934191354, now seen corresponding path program 1 times [2024-11-28 04:05:03,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:03,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131394385] [2024-11-28 04:05:03,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:03,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:04,671 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-28 04:05:04,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:04,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131394385] [2024-11-28 04:05:04,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131394385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:04,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:04,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:05:04,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912064649] [2024-11-28 04:05:04,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:04,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:05:04,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:04,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:05:04,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:05:04,680 INFO L87 Difference]: Start difference. First operand 5248 states and 9091 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:05,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:05,430 INFO L93 Difference]: Finished difference Result 15738 states and 27267 transitions. [2024-11-28 04:05:05,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:05:05,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 788 [2024-11-28 04:05:05,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:05,503 INFO L225 Difference]: With dead ends: 15738 [2024-11-28 04:05:05,504 INFO L226 Difference]: Without dead ends: 10493 [2024-11-28 04:05:05,521 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 [2024-11-28 04:05:05,522 INFO L435 NwaCegarLoop]: 645 mSDtfsCounter, 379 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:05,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1285 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:05:05,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10493 states. [2024-11-28 04:05:06,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10493 to 10491. [2024-11-28 04:05:06,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10491 states, 8958 states have (on average 1.691672248269703) internal successors, (15154), 8984 states have internal predecessors, (15154), 1500 states have call successors, (1500), 32 states have call predecessors, (1500), 32 states have return successors, (1500), 1474 states have call predecessors, (1500), 1500 states have call successors, (1500) [2024-11-28 04:05:06,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10491 states to 10491 states and 18154 transitions. [2024-11-28 04:05:06,868 INFO L78 Accepts]: Start accepts. Automaton has 10491 states and 18154 transitions. Word has length 788 [2024-11-28 04:05:06,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:06,870 INFO L471 AbstractCegarLoop]: Abstraction has 10491 states and 18154 transitions. [2024-11-28 04:05:06,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:06,872 INFO L276 IsEmpty]: Start isEmpty. Operand 10491 states and 18154 transitions. [2024-11-28 04:05:06,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2024-11-28 04:05:06,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:06,892 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:06,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:05:06,892 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:06,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:06,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1564995978, now seen corresponding path program 1 times [2024-11-28 04:05:06,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:06,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575283451] [2024-11-28 04:05:06,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:06,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-28 04:05:14,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:14,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575283451] [2024-11-28 04:05:14,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575283451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:14,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:14,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:05:14,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686798229] [2024-11-28 04:05:14,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:14,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:05:14,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:14,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:05:14,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:05:14,053 INFO L87 Difference]: Start difference. First operand 10491 states and 18154 transitions. Second operand has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:22,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:22,910 INFO L93 Difference]: Finished difference Result 35093 states and 60572 transitions. [2024-11-28 04:05:22,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:05:22,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 789 [2024-11-28 04:05:22,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:23,066 INFO L225 Difference]: With dead ends: 35093 [2024-11-28 04:05:23,066 INFO L226 Difference]: Without dead ends: 29829 [2024-11-28 04:05:23,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:05:23,091 INFO L435 NwaCegarLoop]: 1285 mSDtfsCounter, 2210 mSDsluCounter, 3490 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 1438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 4775 SdHoareTripleChecker+Invalid, 2917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1438 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:23,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2210 Valid, 4775 Invalid, 2917 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1438 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-28 04:05:23,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29829 states. [2024-11-28 04:05:25,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29829 to 20140. [2024-11-28 04:05:25,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20140 states, 17435 states have (on average 1.6963005448809865) internal successors, (29575), 17494 states have internal predecessors, (29575), 2637 states have call successors, (2637), 67 states have call predecessors, (2637), 67 states have return successors, (2637), 2578 states have call predecessors, (2637), 2637 states have call successors, (2637) [2024-11-28 04:05:25,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20140 states to 20140 states and 34849 transitions. [2024-11-28 04:05:25,591 INFO L78 Accepts]: Start accepts. Automaton has 20140 states and 34849 transitions. Word has length 789 [2024-11-28 04:05:25,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:25,593 INFO L471 AbstractCegarLoop]: Abstraction has 20140 states and 34849 transitions. [2024-11-28 04:05:25,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:25,594 INFO L276 IsEmpty]: Start isEmpty. Operand 20140 states and 34849 transitions. [2024-11-28 04:05:25,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2024-11-28 04:05:25,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:25,638 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:25,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:05:25,639 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:25,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:25,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1488095180, now seen corresponding path program 1 times [2024-11-28 04:05:25,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:25,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749355945] [2024-11-28 04:05:25,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:25,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:26,611 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-28 04:05:26,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:26,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749355945] [2024-11-28 04:05:26,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749355945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:26,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:26,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:05:26,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051665424] [2024-11-28 04:05:26,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:26,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:05:26,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:26,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:05:26,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:05:26,618 INFO L87 Difference]: Start difference. First operand 20140 states and 34849 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:28,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:28,883 INFO L93 Difference]: Finished difference Result 48924 states and 84517 transitions. [2024-11-28 04:05:28,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:05:28,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 789 [2024-11-28 04:05:28,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:29,015 INFO L225 Difference]: With dead ends: 48924 [2024-11-28 04:05:29,015 INFO L226 Difference]: Without dead ends: 28902 [2024-11-28 04:05:29,062 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 [2024-11-28 04:05:29,063 INFO L435 NwaCegarLoop]: 646 mSDtfsCounter, 431 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:29,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1283 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:05:29,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28902 states. [2024-11-28 04:05:32,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28902 to 28822. [2024-11-28 04:05:32,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28822 states, 24577 states have (on average 1.6835659356308743) internal successors, (41377), 24662 states have internal predecessors, (41377), 4137 states have call successors, (4137), 107 states have call predecessors, (4137), 107 states have return successors, (4137), 4052 states have call predecessors, (4137), 4137 states have call successors, (4137) [2024-11-28 04:05:33,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28822 states to 28822 states and 49651 transitions. [2024-11-28 04:05:33,033 INFO L78 Accepts]: Start accepts. Automaton has 28822 states and 49651 transitions. Word has length 789 [2024-11-28 04:05:33,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:33,035 INFO L471 AbstractCegarLoop]: Abstraction has 28822 states and 49651 transitions. [2024-11-28 04:05:33,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:33,035 INFO L276 IsEmpty]: Start isEmpty. Operand 28822 states and 49651 transitions. [2024-11-28 04:05:33,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 04:05:33,089 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:33,090 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:33,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:05:33,091 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:33,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:33,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1342918230, now seen corresponding path program 1 times [2024-11-28 04:05:33,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:33,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376660138] [2024-11-28 04:05:33,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:33,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:34,460 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-28 04:05:34,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:34,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376660138] [2024-11-28 04:05:34,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376660138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:34,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:34,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:05:34,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296402865] [2024-11-28 04:05:34,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:34,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:05:34,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:34,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:05:34,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:05:34,465 INFO L87 Difference]: Start difference. First operand 28822 states and 49651 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:36,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:36,851 INFO L93 Difference]: Finished difference Result 57638 states and 99343 transitions. [2024-11-28 04:05:36,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:05:36,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 790 [2024-11-28 04:05:36,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:36,991 INFO L225 Difference]: With dead ends: 57638 [2024-11-28 04:05:36,991 INFO L226 Difference]: Without dead ends: 28934 [2024-11-28 04:05:37,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:05:37,048 INFO L435 NwaCegarLoop]: 651 mSDtfsCounter, 415 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:37,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 1933 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:05:37,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28934 states. [2024-11-28 04:05:40,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28934 to 28926. [2024-11-28 04:05:40,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28926 states, 24681 states have (on average 1.680685547587213) internal successors, (41481), 24766 states have internal predecessors, (41481), 4137 states have call successors, (4137), 107 states have call predecessors, (4137), 107 states have return successors, (4137), 4052 states have call predecessors, (4137), 4137 states have call successors, (4137) [2024-11-28 04:05:40,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28926 states to 28926 states and 49755 transitions. [2024-11-28 04:05:40,403 INFO L78 Accepts]: Start accepts. Automaton has 28926 states and 49755 transitions. Word has length 790 [2024-11-28 04:05:40,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:40,406 INFO L471 AbstractCegarLoop]: Abstraction has 28926 states and 49755 transitions. [2024-11-28 04:05:40,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:40,407 INFO L276 IsEmpty]: Start isEmpty. Operand 28926 states and 49755 transitions. [2024-11-28 04:05:40,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 04:05:40,438 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:40,439 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:40,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:05:40,439 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:40,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:40,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1565263656, now seen corresponding path program 1 times [2024-11-28 04:05:40,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:40,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169394829] [2024-11-28 04:05:40,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:40,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:42,582 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-28 04:05:42,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:42,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169394829] [2024-11-28 04:05:42,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169394829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:42,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:42,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:05:42,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072067590] [2024-11-28 04:05:42,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:42,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:05:42,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:42,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:05:42,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:05:42,586 INFO L87 Difference]: Start difference. First operand 28926 states and 49755 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:46,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:46,136 INFO L93 Difference]: Finished difference Result 70440 states and 121186 transitions. [2024-11-28 04:05:46,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:05:46,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 790 [2024-11-28 04:05:46,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:46,329 INFO L225 Difference]: With dead ends: 70440 [2024-11-28 04:05:46,329 INFO L226 Difference]: Without dead ends: 41632 [2024-11-28 04:05:46,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:05:46,395 INFO L435 NwaCegarLoop]: 1113 mSDtfsCounter, 802 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:46,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 2261 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:05:46,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41632 states. [2024-11-28 04:05:50,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41632 to 32242. [2024-11-28 04:05:50,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32242 states, 27997 states have (on average 1.693860056434618) internal successors, (47423), 28082 states have internal predecessors, (47423), 4137 states have call successors, (4137), 107 states have call predecessors, (4137), 107 states have return successors, (4137), 4052 states have call predecessors, (4137), 4137 states have call successors, (4137) [2024-11-28 04:05:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32242 states to 32242 states and 55697 transitions. [2024-11-28 04:05:50,297 INFO L78 Accepts]: Start accepts. Automaton has 32242 states and 55697 transitions. Word has length 790 [2024-11-28 04:05:50,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:50,299 INFO L471 AbstractCegarLoop]: Abstraction has 32242 states and 55697 transitions. [2024-11-28 04:05:50,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:50,299 INFO L276 IsEmpty]: Start isEmpty. Operand 32242 states and 55697 transitions. [2024-11-28 04:05:50,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 04:05:50,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:50,331 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:50,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:05:50,331 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:50,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:50,332 INFO L85 PathProgramCache]: Analyzing trace with hash -929381485, now seen corresponding path program 1 times [2024-11-28 04:05:50,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:50,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072633421] [2024-11-28 04:05:50,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:50,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-28 04:05:51,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:51,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072633421] [2024-11-28 04:05:51,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072633421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:51,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:51,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:05:51,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024272315] [2024-11-28 04:05:51,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:51,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:51,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:51,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:51,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:51,733 INFO L87 Difference]: Start difference. First operand 32242 states and 55697 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:55,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:55,438 INFO L93 Difference]: Finished difference Result 65021 states and 111951 transitions. [2024-11-28 04:05:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:05:55,439 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 790 [2024-11-28 04:05:55,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:55,617 INFO L225 Difference]: With dead ends: 65021 [2024-11-28 04:05:55,617 INFO L226 Difference]: Without dead ends: 50411 [2024-11-28 04:05:55,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:05:55,665 INFO L435 NwaCegarLoop]: 818 mSDtfsCounter, 1003 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:55,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 2478 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:05:55,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50411 states. [2024-11-28 04:05:58,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50411 to 44390. [2024-11-28 04:05:58,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44390 states, 38237 states have (on average 1.6874493291837749) internal successors, (64523), 38370 states have internal predecessors, (64523), 5993 states have call successors, (5993), 159 states have call predecessors, (5993), 159 states have return successors, (5993), 5860 states have call predecessors, (5993), 5993 states have call successors, (5993) [2024-11-28 04:05:58,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44390 states to 44390 states and 76509 transitions. [2024-11-28 04:05:58,743 INFO L78 Accepts]: Start accepts. Automaton has 44390 states and 76509 transitions. Word has length 790 [2024-11-28 04:05:58,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:58,744 INFO L471 AbstractCegarLoop]: Abstraction has 44390 states and 76509 transitions. [2024-11-28 04:05:58,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:05:58,744 INFO L276 IsEmpty]: Start isEmpty. Operand 44390 states and 76509 transitions. [2024-11-28 04:05:58,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 04:05:58,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:58,779 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:58,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:05:58,779 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:58,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:58,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1805400491, now seen corresponding path program 1 times [2024-11-28 04:05:58,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:58,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153852665] [2024-11-28 04:05:58,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:58,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:04,850 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-28 04:06:04,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:04,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153852665] [2024-11-28 04:06:04,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153852665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:04,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:04,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:06:04,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911012348] [2024-11-28 04:06:04,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:04,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:06:04,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:04,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:06:04,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:06:04,857 INFO L87 Difference]: Start difference. First operand 44390 states and 76509 transitions. Second operand has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 9 states have internal predecessors, (163), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:06:12,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:12,953 INFO L93 Difference]: Finished difference Result 83165 states and 143066 transitions. [2024-11-28 04:06:12,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:06:12,954 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 9 states have internal predecessors, (163), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 790 [2024-11-28 04:06:12,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:13,148 INFO L225 Difference]: With dead ends: 83165 [2024-11-28 04:06:13,148 INFO L226 Difference]: Without dead ends: 56407 [2024-11-28 04:06:13,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:06:13,215 INFO L435 NwaCegarLoop]: 1112 mSDtfsCounter, 1277 mSDsluCounter, 3882 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 4994 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:13,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 4994 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 04:06:13,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56407 states. [2024-11-28 04:06:16,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56407 to 44670. [2024-11-28 04:06:16,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44670 states, 38517 states have (on average 1.6888906197263547) internal successors, (65051), 38650 states have internal predecessors, (65051), 5993 states have call successors, (5993), 159 states have call predecessors, (5993), 159 states have return successors, (5993), 5860 states have call predecessors, (5993), 5993 states have call successors, (5993) [2024-11-28 04:06:16,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44670 states to 44670 states and 77037 transitions. [2024-11-28 04:06:16,632 INFO L78 Accepts]: Start accepts. Automaton has 44670 states and 77037 transitions. Word has length 790 [2024-11-28 04:06:16,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:16,633 INFO L471 AbstractCegarLoop]: Abstraction has 44670 states and 77037 transitions. [2024-11-28 04:06:16,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 9 states have internal predecessors, (163), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-28 04:06:16,633 INFO L276 IsEmpty]: Start isEmpty. Operand 44670 states and 77037 transitions. [2024-11-28 04:06:16,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 04:06:16,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:16,669 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:16,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:06:16,669 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:06:16,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:16,670 INFO L85 PathProgramCache]: Analyzing trace with hash -581268784, now seen corresponding path program 1 times [2024-11-28 04:06:16,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:16,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058173873] [2024-11-28 04:06:16,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:16,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat