./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-81.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b9308720d07799738d2bf3272bc150196623be74b0092d021bdb1b9cd368313 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:35:32,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:35:32,774 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:35:32,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:35:32,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:35:32,841 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:35:32,843 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:35:32,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:35:32,844 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:35:32,844 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:35:32,845 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:35:32,845 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:35:32,846 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:35:32,846 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:35:32,846 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:35:32,846 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:35:32,846 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:35:32,846 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:35:32,848 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:35:32,849 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:35:32,849 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:35:32,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:35:32,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:35:32,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:35:32,849 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:35:32,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:35:32,850 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:35:32,850 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:35:32,850 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:35:32,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:35:32,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:35:32,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:35:32,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:35:32,851 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:35:32,851 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:35:32,851 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:35:32,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:35:32,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:35:32,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:35:32,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:35:32,852 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:35:32,852 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:35:32,852 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:35:32,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:35:32,852 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:35:32,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:35:32,852 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:35:32,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:35:32,854 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_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b9308720d07799738d2bf3272bc150196623be74b0092d021bdb1b9cd368313 [2024-11-23 18:35:33,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:35:33,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:35:33,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:35:33,300 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:35:33,300 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:35:33,301 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-81.i [2024-11-23 18:35:36,631 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/data/d6d29324c/a0983dfafb49442dbee576fff8f8a20d/FLAGe47db7f3b [2024-11-23 18:35:36,952 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:35:36,953 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-81.i [2024-11-23 18:35:36,978 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/data/d6d29324c/a0983dfafb49442dbee576fff8f8a20d/FLAGe47db7f3b [2024-11-23 18:35:37,036 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/data/d6d29324c/a0983dfafb49442dbee576fff8f8a20d [2024-11-23 18:35:37,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:35:37,047 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:35:37,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:35:37,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:35:37,055 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:35:37,058 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2298ad70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37, skipping insertion in model container [2024-11-23 18:35:37,060 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,092 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:35:37,280 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_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-81.i[915,928] [2024-11-23 18:35:37,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:35:37,392 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:35:37,406 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_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-81.i[915,928] [2024-11-23 18:35:37,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:35:37,493 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:35:37,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37 WrapperNode [2024-11-23 18:35:37,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:35:37,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:35:37,497 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:35:37,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:35:37,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,523 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,579 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 217 [2024-11-23 18:35:37,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:35:37,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:35:37,580 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:35:37,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:35:37,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,646 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 18:35:37,647 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,665 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,671 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,683 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:35:37,701 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:35:37,701 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:35:37,702 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:35:37,703 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37" (1/1) ... [2024-11-23 18:35:37,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:35:37,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:35:37,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:35:37,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:35:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:35:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:35:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:35:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:35:37,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:35:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:35:37,903 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:35:37,905 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:35:38,636 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-23 18:35:38,636 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:35:38,651 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:35:38,652 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 18:35:38,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:35:38 BoogieIcfgContainer [2024-11-23 18:35:38,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:35:38,654 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:35:38,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:35:38,659 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:35:38,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:35:37" (1/3) ... [2024-11-23 18:35:38,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c31c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:35:38, skipping insertion in model container [2024-11-23 18:35:38,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:37" (2/3) ... [2024-11-23 18:35:38,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c31c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:35:38, skipping insertion in model container [2024-11-23 18:35:38,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:35:38" (3/3) ... [2024-11-23 18:35:38,663 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-81.i [2024-11-23 18:35:38,679 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:35:38,682 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-81.i that has 2 procedures, 90 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:35:38,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:35:38,781 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;@58bedd10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:35:38,781 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:35:38,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 55 states have internal predecessors, (73), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-23 18:35:38,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 18:35:38,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:38,811 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:38,812 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:38,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:38,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1145210603, now seen corresponding path program 1 times [2024-11-23 18:35:38,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:38,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068113738] [2024-11-23 18:35:38,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:38,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:39,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-11-23 18:35:39,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:39,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068113738] [2024-11-23 18:35:39,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068113738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:35:39,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774126874] [2024-11-23 18:35:39,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:39,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:35:39,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:35:39,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:35:39,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:35:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:39,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:35:39,613 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:35:39,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-11-23 18:35:39,685 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:35:39,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774126874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:39,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:35:39,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 18:35:39,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489351750] [2024-11-23 18:35:39,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:39,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:35:39,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:39,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:35:39,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:35:39,731 INFO L87 Difference]: Start difference. First operand has 90 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 55 states have internal predecessors, (73), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-23 18:35:39,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:39,771 INFO L93 Difference]: Finished difference Result 173 states and 305 transitions. [2024-11-23 18:35:39,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:35:39,774 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) Word has length 204 [2024-11-23 18:35:39,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:39,783 INFO L225 Difference]: With dead ends: 173 [2024-11-23 18:35:39,783 INFO L226 Difference]: Without dead ends: 86 [2024-11-23 18:35:39,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:35:39,791 INFO L435 NwaCegarLoop]: 132 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, 132 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:39,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:35:39,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-23 18:35:39,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-23 18:35:39,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 51 states have internal predecessors, (66), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-23 18:35:39,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 132 transitions. [2024-11-23 18:35:39,862 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 132 transitions. Word has length 204 [2024-11-23 18:35:39,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:39,863 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 132 transitions. [2024-11-23 18:35:39,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-23 18:35:39,863 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 132 transitions. [2024-11-23 18:35:39,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 18:35:39,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:39,869 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:39,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 18:35:40,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 18:35:40,070 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:40,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:40,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1536351209, now seen corresponding path program 1 times [2024-11-23 18:35:40,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:40,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451814579] [2024-11-23 18:35:40,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:40,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:45,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:35:45,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:45,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451814579] [2024-11-23 18:35:45,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451814579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:45,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:45,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 18:35:45,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707034635] [2024-11-23 18:35:45,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:45,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:35:45,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:45,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:35:45,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:35:45,758 INFO L87 Difference]: Start difference. First operand 86 states and 132 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-23 18:35:48,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:48,076 INFO L93 Difference]: Finished difference Result 300 states and 459 transitions. [2024-11-23 18:35:48,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:35:48,077 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) Word has length 204 [2024-11-23 18:35:48,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:48,082 INFO L225 Difference]: With dead ends: 300 [2024-11-23 18:35:48,082 INFO L226 Difference]: Without dead ends: 217 [2024-11-23 18:35:48,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:35:48,085 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 353 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:48,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 624 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 18:35:48,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-23 18:35:48,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 149. [2024-11-23 18:35:48,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 80 states have (on average 1.2375) internal successors, (99), 80 states have internal predecessors, (99), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 18:35:48,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 231 transitions. [2024-11-23 18:35:48,146 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 231 transitions. Word has length 204 [2024-11-23 18:35:48,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:48,148 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 231 transitions. [2024-11-23 18:35:48,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-23 18:35:48,148 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 231 transitions. [2024-11-23 18:35:48,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 18:35:48,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:48,153 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:48,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:35:48,153 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:48,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:48,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1794516647, now seen corresponding path program 1 times [2024-11-23 18:35:48,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:48,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101868643] [2024-11-23 18:35:48,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:48,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:36:05,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:05,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101868643] [2024-11-23 18:36:05,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101868643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:05,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:05,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 18:36:05,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226850130] [2024-11-23 18:36:05,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:05,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 18:36:05,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:05,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 18:36:05,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-23 18:36:05,273 INFO L87 Difference]: Start difference. First operand 149 states and 231 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:36:09,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:09,835 INFO L93 Difference]: Finished difference Result 342 states and 516 transitions. [2024-11-23 18:36:09,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 18:36:09,837 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-23 18:36:09,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:09,844 INFO L225 Difference]: With dead ends: 342 [2024-11-23 18:36:09,844 INFO L226 Difference]: Without dead ends: 259 [2024-11-23 18:36:09,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2024-11-23 18:36:09,851 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 595 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:09,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 608 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 18:36:09,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-23 18:36:09,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 162. [2024-11-23 18:36:09,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 93 states have (on average 1.2688172043010753) internal successors, (118), 93 states have internal predecessors, (118), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 18:36:09,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 250 transitions. [2024-11-23 18:36:09,931 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 250 transitions. Word has length 204 [2024-11-23 18:36:09,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:09,932 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 250 transitions. [2024-11-23 18:36:09,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:36:09,933 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 250 transitions. [2024-11-23 18:36:09,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 18:36:09,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:09,944 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:09,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:36:09,945 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:09,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:09,945 INFO L85 PathProgramCache]: Analyzing trace with hash 2107423639, now seen corresponding path program 1 times [2024-11-23 18:36:09,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:09,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038502629] [2024-11-23 18:36:09,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:09,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:36:10,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:10,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038502629] [2024-11-23 18:36:10,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038502629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:10,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:10,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:36:10,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795597464] [2024-11-23 18:36:10,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:10,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:36:10,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:10,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:36:10,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:36:10,414 INFO L87 Difference]: Start difference. First operand 162 states and 250 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:36:10,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:10,559 INFO L93 Difference]: Finished difference Result 280 states and 428 transitions. [2024-11-23 18:36:10,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:36:10,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-23 18:36:10,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:10,563 INFO L225 Difference]: With dead ends: 280 [2024-11-23 18:36:10,563 INFO L226 Difference]: Without dead ends: 197 [2024-11-23 18:36:10,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:36:10,567 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 42 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:10,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 386 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:36:10,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-23 18:36:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2024-11-23 18:36:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 120 states have (on average 1.2833333333333334) internal successors, (154), 121 states have internal predecessors, (154), 70 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-23 18:36:10,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 294 transitions. [2024-11-23 18:36:10,644 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 294 transitions. Word has length 204 [2024-11-23 18:36:10,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:10,648 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 294 transitions. [2024-11-23 18:36:10,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:36:10,648 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 294 transitions. [2024-11-23 18:36:10,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 18:36:10,652 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:10,652 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:10,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:36:10,653 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:10,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:10,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1093452069, now seen corresponding path program 1 times [2024-11-23 18:36:10,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:10,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423416478] [2024-11-23 18:36:10,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:10,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:29,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:36:29,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:29,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423416478] [2024-11-23 18:36:29,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423416478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:29,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:29,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:36:29,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670260623] [2024-11-23 18:36:29,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:29,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:36:29,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:29,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:36:29,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:36:29,366 INFO L87 Difference]: Start difference. First operand 194 states and 294 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:36:30,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:30,622 INFO L93 Difference]: Finished difference Result 349 states and 521 transitions. [2024-11-23 18:36:30,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:36:30,623 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-23 18:36:30,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:30,628 INFO L225 Difference]: With dead ends: 349 [2024-11-23 18:36:30,629 INFO L226 Difference]: Without dead ends: 234 [2024-11-23 18:36:30,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:36:30,631 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 145 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:30,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 441 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 18:36:30,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-23 18:36:30,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 194. [2024-11-23 18:36:30,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 120 states have (on average 1.2833333333333334) internal successors, (154), 121 states have internal predecessors, (154), 70 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-23 18:36:30,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 294 transitions. [2024-11-23 18:36:30,702 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 294 transitions. Word has length 204 [2024-11-23 18:36:30,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:30,703 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 294 transitions. [2024-11-23 18:36:30,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:36:30,703 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 294 transitions. [2024-11-23 18:36:30,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 18:36:30,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:30,710 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:30,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:36:30,711 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:30,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:30,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1747498837, now seen corresponding path program 1 times [2024-11-23 18:36:30,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:30,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895998812] [2024-11-23 18:36:30,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:30,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:31,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:36:31,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:31,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895998812] [2024-11-23 18:36:31,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895998812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:31,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:31,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 18:36:31,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338324443] [2024-11-23 18:36:31,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:31,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:36:31,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:31,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:36:31,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:36:31,748 INFO L87 Difference]: Start difference. First operand 194 states and 294 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:36:32,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:32,504 INFO L93 Difference]: Finished difference Result 372 states and 558 transitions. [2024-11-23 18:36:32,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:36:32,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-23 18:36:32,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:32,507 INFO L225 Difference]: With dead ends: 372 [2024-11-23 18:36:32,507 INFO L226 Difference]: Without dead ends: 247 [2024-11-23 18:36:32,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:36:32,509 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 144 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:32,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 467 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 18:36:32,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-23 18:36:32,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 194. [2024-11-23 18:36:32,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 120 states have (on average 1.2833333333333334) internal successors, (154), 121 states have internal predecessors, (154), 70 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-23 18:36:32,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 294 transitions. [2024-11-23 18:36:32,549 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 294 transitions. Word has length 204 [2024-11-23 18:36:32,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:32,555 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 294 transitions. [2024-11-23 18:36:32,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:36:32,556 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 294 transitions. [2024-11-23 18:36:32,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-23 18:36:32,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:32,558 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:32,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:36:32,559 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:32,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:32,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1312597558, now seen corresponding path program 1 times [2024-11-23 18:36:32,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:32,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830975553] [2024-11-23 18:36:32,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:32,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:41,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:36:41,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:41,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830975553] [2024-11-23 18:36:41,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830975553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:41,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:41,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 18:36:41,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333441987] [2024-11-23 18:36:41,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:41,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 18:36:41,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:41,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 18:36:41,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-23 18:36:41,101 INFO L87 Difference]: Start difference. First operand 194 states and 294 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-23 18:36:43,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:43,422 INFO L93 Difference]: Finished difference Result 519 states and 760 transitions. [2024-11-23 18:36:43,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 18:36:43,423 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) Word has length 205 [2024-11-23 18:36:43,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:43,426 INFO L225 Difference]: With dead ends: 519 [2024-11-23 18:36:43,426 INFO L226 Difference]: Without dead ends: 394 [2024-11-23 18:36:43,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2024-11-23 18:36:43,430 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 470 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:43,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 773 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 18:36:43,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-23 18:36:43,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 199. [2024-11-23 18:36:43,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 125 states have (on average 1.296) internal successors, (162), 126 states have internal predecessors, (162), 70 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-23 18:36:43,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 302 transitions. [2024-11-23 18:36:43,473 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 302 transitions. Word has length 205 [2024-11-23 18:36:43,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:43,473 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 302 transitions. [2024-11-23 18:36:43,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-23 18:36:43,474 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 302 transitions. [2024-11-23 18:36:43,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-23 18:36:43,476 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:43,476 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:43,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:36:43,477 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:43,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:43,477 INFO L85 PathProgramCache]: Analyzing trace with hash 919570548, now seen corresponding path program 1 times [2024-11-23 18:36:43,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:43,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700564540] [2024-11-23 18:36:43,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:43,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:50,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:36:50,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:50,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700564540] [2024-11-23 18:36:50,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700564540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:50,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:50,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:36:50,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343011593] [2024-11-23 18:36:50,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:50,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:36:50,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:50,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:36:50,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:36:50,249 INFO L87 Difference]: Start difference. First operand 199 states and 302 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:36:51,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:51,329 INFO L93 Difference]: Finished difference Result 459 states and 679 transitions. [2024-11-23 18:36:51,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:36:51,330 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2024-11-23 18:36:51,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:51,333 INFO L225 Difference]: With dead ends: 459 [2024-11-23 18:36:51,333 INFO L226 Difference]: Without dead ends: 334 [2024-11-23 18:36:51,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:36:51,334 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 209 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:51,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 687 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 18:36:51,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-23 18:36:51,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 214. [2024-11-23 18:36:51,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 140 states have (on average 1.3142857142857143) internal successors, (184), 141 states have internal predecessors, (184), 70 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-23 18:36:51,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 324 transitions. [2024-11-23 18:36:51,369 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 324 transitions. Word has length 205 [2024-11-23 18:36:51,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:51,369 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 324 transitions. [2024-11-23 18:36:51,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:36:51,370 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 324 transitions. [2024-11-23 18:36:51,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-23 18:36:51,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:51,372 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:51,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:36:51,373 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:51,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:51,373 INFO L85 PathProgramCache]: Analyzing trace with hash 2013662136, now seen corresponding path program 1 times [2024-11-23 18:36:51,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:51,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696506655] [2024-11-23 18:36:51,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:51,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:59,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:36:59,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:59,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696506655] [2024-11-23 18:36:59,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696506655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:59,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:59,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 18:36:59,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085407069] [2024-11-23 18:36:59,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:59,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:36:59,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:59,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:36:59,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:36:59,041 INFO L87 Difference]: Start difference. First operand 214 states and 324 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:37:00,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:37:00,011 INFO L93 Difference]: Finished difference Result 440 states and 654 transitions. [2024-11-23 18:37:00,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:37:00,012 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2024-11-23 18:37:00,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:37:00,015 INFO L225 Difference]: With dead ends: 440 [2024-11-23 18:37:00,015 INFO L226 Difference]: Without dead ends: 302 [2024-11-23 18:37:00,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-23 18:37:00,019 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 245 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:37:00,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 425 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 18:37:00,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-23 18:37:00,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 211. [2024-11-23 18:37:00,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 137 states have (on average 1.313868613138686) internal successors, (180), 138 states have internal predecessors, (180), 70 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-23 18:37:00,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 320 transitions. [2024-11-23 18:37:00,063 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 320 transitions. Word has length 205 [2024-11-23 18:37:00,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:37:00,064 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 320 transitions. [2024-11-23 18:37:00,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:37:00,065 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 320 transitions. [2024-11-23 18:37:00,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-23 18:37:00,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:37:00,069 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:37:00,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:37:00,070 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:37:00,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:37:00,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1620635126, now seen corresponding path program 1 times [2024-11-23 18:37:00,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:37:00,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534234611] [2024-11-23 18:37:00,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:37:00,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:37:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:37:06,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:37:06,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:37:06,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534234611] [2024-11-23 18:37:06,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534234611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:37:06,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:37:06,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 18:37:06,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407635095] [2024-11-23 18:37:06,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:37:06,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:37:06,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:37:06,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:37:06,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:37:06,135 INFO L87 Difference]: Start difference. First operand 211 states and 320 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:37:07,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:37:07,042 INFO L93 Difference]: Finished difference Result 433 states and 644 transitions. [2024-11-23 18:37:07,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:37:07,043 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2024-11-23 18:37:07,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:37:07,044 INFO L225 Difference]: With dead ends: 433 [2024-11-23 18:37:07,044 INFO L226 Difference]: Without dead ends: 294 [2024-11-23 18:37:07,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:37:07,045 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 124 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:37:07,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 594 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 18:37:07,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-23 18:37:07,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 210. [2024-11-23 18:37:07,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 136 states have (on average 1.3088235294117647) internal successors, (178), 137 states have internal predecessors, (178), 70 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-23 18:37:07,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 318 transitions. [2024-11-23 18:37:07,078 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 318 transitions. Word has length 205 [2024-11-23 18:37:07,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:37:07,079 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 318 transitions. [2024-11-23 18:37:07,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:37:07,079 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 318 transitions. [2024-11-23 18:37:07,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-23 18:37:07,084 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:37:07,084 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:37:07,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:37:07,084 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:37:07,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:37:07,085 INFO L85 PathProgramCache]: Analyzing trace with hash 32733880, now seen corresponding path program 1 times [2024-11-23 18:37:07,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:37:07,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488609580] [2024-11-23 18:37:07,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:37:07,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:37:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:37:07,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:37:07,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:37:07,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488609580] [2024-11-23 18:37:07,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488609580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:37:07,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:37:07,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:37:07,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746162093] [2024-11-23 18:37:07,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:37:07,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:37:07,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:37:07,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:37:07,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:37:07,324 INFO L87 Difference]: Start difference. First operand 210 states and 318 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:37:07,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:37:07,429 INFO L93 Difference]: Finished difference Result 375 states and 558 transitions. [2024-11-23 18:37:07,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:37:07,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2024-11-23 18:37:07,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:37:07,432 INFO L225 Difference]: With dead ends: 375 [2024-11-23 18:37:07,433 INFO L226 Difference]: Without dead ends: 237 [2024-11-23 18:37:07,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:37:07,434 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 61 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:37:07,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 395 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:37:07,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-23 18:37:07,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 197. [2024-11-23 18:37:07,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 126 states have internal predecessors, (164), 66 states have call successors, (66), 4 states have call predecessors, (66), 4 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 18:37:07,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 296 transitions. [2024-11-23 18:37:07,464 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 296 transitions. Word has length 205 [2024-11-23 18:37:07,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:37:07,465 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 296 transitions. [2024-11-23 18:37:07,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:37:07,465 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 296 transitions. [2024-11-23 18:37:07,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-23 18:37:07,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:37:07,468 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:37:07,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 18:37:07,469 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:37:07,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:37:07,469 INFO L85 PathProgramCache]: Analyzing trace with hash -360293130, now seen corresponding path program 1 times [2024-11-23 18:37:07,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:37:07,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226311179] [2024-11-23 18:37:07,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:37:07,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:37:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:37:15,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:37:15,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:37:15,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226311179] [2024-11-23 18:37:15,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226311179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:37:15,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:37:15,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 18:37:15,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003566962] [2024-11-23 18:37:15,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:37:15,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:37:15,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:37:15,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:37:15,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:37:15,167 INFO L87 Difference]: Start difference. First operand 197 states and 296 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:37:15,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:37:15,899 INFO L93 Difference]: Finished difference Result 378 states and 558 transitions. [2024-11-23 18:37:15,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:37:15,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2024-11-23 18:37:15,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:37:15,902 INFO L225 Difference]: With dead ends: 378 [2024-11-23 18:37:15,902 INFO L226 Difference]: Without dead ends: 257 [2024-11-23 18:37:15,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:37:15,904 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 153 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:37:15,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 568 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 18:37:15,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-23 18:37:15,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 199. [2024-11-23 18:37:15,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 128 states have (on average 1.3046875) internal successors, (167), 128 states have internal predecessors, (167), 66 states have call successors, (66), 4 states have call predecessors, (66), 4 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 18:37:15,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 299 transitions. [2024-11-23 18:37:15,941 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 299 transitions. Word has length 205 [2024-11-23 18:37:15,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:37:15,942 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 299 transitions. [2024-11-23 18:37:15,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:37:15,942 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 299 transitions. [2024-11-23 18:37:15,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-23 18:37:15,944 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:37:15,944 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:37:15,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 18:37:15,944 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:37:15,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:37:15,945 INFO L85 PathProgramCache]: Analyzing trace with hash 340771448, now seen corresponding path program 1 times [2024-11-23 18:37:15,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:37:15,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151227988] [2024-11-23 18:37:15,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:37:15,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:37:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:37:24,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:37:24,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:37:24,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151227988] [2024-11-23 18:37:24,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151227988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:37:24,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:37:24,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 18:37:24,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696439231] [2024-11-23 18:37:24,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:37:24,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 18:37:24,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:37:24,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 18:37:24,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-23 18:37:24,219 INFO L87 Difference]: Start difference. First operand 199 states and 299 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-23 18:37:26,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:37:26,841 INFO L93 Difference]: Finished difference Result 381 states and 565 transitions. [2024-11-23 18:37:26,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 18:37:26,842 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) Word has length 205 [2024-11-23 18:37:26,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:37:26,844 INFO L225 Difference]: With dead ends: 381 [2024-11-23 18:37:26,844 INFO L226 Difference]: Without dead ends: 258 [2024-11-23 18:37:26,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2024-11-23 18:37:26,845 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 184 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:37:26,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 686 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 18:37:26,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-23 18:37:26,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 200. [2024-11-23 18:37:26,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 129 states have (on average 1.310077519379845) internal successors, (169), 129 states have internal predecessors, (169), 66 states have call successors, (66), 4 states have call predecessors, (66), 4 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 18:37:26,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 301 transitions. [2024-11-23 18:37:26,877 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 301 transitions. Word has length 205 [2024-11-23 18:37:26,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:37:26,878 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 301 transitions. [2024-11-23 18:37:26,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-23 18:37:26,878 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 301 transitions. [2024-11-23 18:37:26,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-23 18:37:26,879 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:37:26,880 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:37:26,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 18:37:26,880 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:37:26,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:37:26,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1212203988, now seen corresponding path program 1 times [2024-11-23 18:37:26,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:37:26,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767780105] [2024-11-23 18:37:26,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:37:26,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:37:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:15,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:39:15,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:15,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767780105] [2024-11-23 18:39:15,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767780105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:15,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:15,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 18:39:15,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374392836] [2024-11-23 18:39:15,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:15,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:39:15,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:15,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:39:15,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:39:15,330 INFO L87 Difference]: Start difference. First operand 200 states and 301 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:39:18,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:18,074 INFO L93 Difference]: Finished difference Result 250 states and 363 transitions. [2024-11-23 18:39:18,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:39:18,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 206 [2024-11-23 18:39:18,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:18,077 INFO L225 Difference]: With dead ends: 250 [2024-11-23 18:39:18,077 INFO L226 Difference]: Without dead ends: 248 [2024-11-23 18:39:18,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-23 18:39:18,078 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 89 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:18,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 1023 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 18:39:18,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-23 18:39:18,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 217. [2024-11-23 18:39:18,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 145 states have (on average 1.3172413793103448) internal successors, (191), 145 states have internal predecessors, (191), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 18:39:18,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 323 transitions. [2024-11-23 18:39:18,121 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 323 transitions. Word has length 206 [2024-11-23 18:39:18,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:18,122 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 323 transitions. [2024-11-23 18:39:18,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:39:18,122 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 323 transitions. [2024-11-23 18:39:18,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-23 18:39:18,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:18,123 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:18,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 18:39:18,124 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:18,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:18,124 INFO L85 PathProgramCache]: Analyzing trace with hash 551723121, now seen corresponding path program 1 times [2024-11-23 18:39:18,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:18,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576323132] [2024-11-23 18:39:18,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:18,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:18,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:39:18,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:18,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576323132] [2024-11-23 18:39:18,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576323132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:18,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:18,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:18,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63564910] [2024-11-23 18:39:18,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:18,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:18,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:18,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:18,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:18,229 INFO L87 Difference]: Start difference. First operand 217 states and 323 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:39:18,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:18,333 INFO L93 Difference]: Finished difference Result 402 states and 585 transitions. [2024-11-23 18:39:18,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:18,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 207 [2024-11-23 18:39:18,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:18,336 INFO L225 Difference]: With dead ends: 402 [2024-11-23 18:39:18,337 INFO L226 Difference]: Without dead ends: 262 [2024-11-23 18:39:18,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:18,340 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 41 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:18,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 268 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:39:18,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-23 18:39:18,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 259. [2024-11-23 18:39:18,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 174 states have (on average 1.2701149425287357) internal successors, (221), 175 states have internal predecessors, (221), 76 states have call successors, (76), 8 states have call predecessors, (76), 8 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-23 18:39:18,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 373 transitions. [2024-11-23 18:39:18,397 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 373 transitions. Word has length 207 [2024-11-23 18:39:18,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:18,398 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 373 transitions. [2024-11-23 18:39:18,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:39:18,398 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 373 transitions. [2024-11-23 18:39:18,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-23 18:39:18,400 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:18,401 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:18,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 18:39:18,401 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:18,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:18,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1740522832, now seen corresponding path program 1 times [2024-11-23 18:39:18,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:18,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408088735] [2024-11-23 18:39:18,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:18,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:20,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:39:20,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:20,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408088735] [2024-11-23 18:39:20,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408088735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:20,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:20,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:39:20,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353982763] [2024-11-23 18:39:20,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:20,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:39:20,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:20,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:39:20,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:39:20,281 INFO L87 Difference]: Start difference. First operand 259 states and 373 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:39:20,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:20,690 INFO L93 Difference]: Finished difference Result 340 states and 469 transitions. [2024-11-23 18:39:20,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:39:20,691 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 207 [2024-11-23 18:39:20,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:20,693 INFO L225 Difference]: With dead ends: 340 [2024-11-23 18:39:20,693 INFO L226 Difference]: Without dead ends: 338 [2024-11-23 18:39:20,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-23 18:39:20,694 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 63 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:20,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 936 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:39:20,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-23 18:39:20,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 259. [2024-11-23 18:39:20,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 174 states have (on average 1.2701149425287357) internal successors, (221), 175 states have internal predecessors, (221), 76 states have call successors, (76), 8 states have call predecessors, (76), 8 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-23 18:39:20,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 373 transitions. [2024-11-23 18:39:20,752 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 373 transitions. Word has length 207 [2024-11-23 18:39:20,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:20,752 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 373 transitions. [2024-11-23 18:39:20,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:39:20,753 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 373 transitions. [2024-11-23 18:39:20,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-23 18:39:20,754 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:20,754 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:20,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 18:39:20,754 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:20,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:20,755 INFO L85 PathProgramCache]: Analyzing trace with hash 496442644, now seen corresponding path program 1 times [2024-11-23 18:39:20,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:20,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050127311] [2024-11-23 18:39:20,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:20,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:20,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:39:20,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:20,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050127311] [2024-11-23 18:39:20,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050127311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:20,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:20,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:20,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414449350] [2024-11-23 18:39:20,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:20,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:20,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:20,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:20,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:20,849 INFO L87 Difference]: Start difference. First operand 259 states and 373 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:39:20,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:20,951 INFO L93 Difference]: Finished difference Result 452 states and 639 transitions. [2024-11-23 18:39:20,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:20,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 207 [2024-11-23 18:39:20,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:20,954 INFO L225 Difference]: With dead ends: 452 [2024-11-23 18:39:20,954 INFO L226 Difference]: Without dead ends: 270 [2024-11-23 18:39:20,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:20,955 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 48 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:20,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 242 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:39:20,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-23 18:39:20,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 234. [2024-11-23 18:39:20,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 160 states have (on average 1.28125) internal successors, (205), 160 states have internal predecessors, (205), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 18:39:20,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 337 transitions. [2024-11-23 18:39:20,996 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 337 transitions. Word has length 207 [2024-11-23 18:39:20,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:20,997 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 337 transitions. [2024-11-23 18:39:20,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:39:20,997 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 337 transitions. [2024-11-23 18:39:20,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-23 18:39:20,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:20,998 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:20,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 18:39:20,999 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:20,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:20,999 INFO L85 PathProgramCache]: Analyzing trace with hash -162042063, now seen corresponding path program 1 times [2024-11-23 18:39:20,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:20,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850812299] [2024-11-23 18:39:21,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:21,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:39,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:39:39,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:39,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850812299] [2024-11-23 18:39:39,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850812299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:39,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:39,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 18:39:39,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543518855] [2024-11-23 18:39:39,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:39,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 18:39:39,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:39,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 18:39:39,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:39:39,108 INFO L87 Difference]: Start difference. First operand 234 states and 337 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:39:40,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:40,206 INFO L93 Difference]: Finished difference Result 309 states and 424 transitions. [2024-11-23 18:39:40,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:39:40,207 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 208 [2024-11-23 18:39:40,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:40,209 INFO L225 Difference]: With dead ends: 309 [2024-11-23 18:39:40,210 INFO L226 Difference]: Without dead ends: 307 [2024-11-23 18:39:40,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:39:40,210 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 77 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:40,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 812 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:39:40,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-23 18:39:40,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 241. [2024-11-23 18:39:40,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 167 states have (on average 1.281437125748503) internal successors, (214), 167 states have internal predecessors, (214), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 18:39:40,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 346 transitions. [2024-11-23 18:39:40,260 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 346 transitions. Word has length 208 [2024-11-23 18:39:40,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:40,260 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 346 transitions. [2024-11-23 18:39:40,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:39:40,261 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 346 transitions. [2024-11-23 18:39:40,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-23 18:39:40,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:40,262 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:40,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 18:39:40,262 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:40,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:40,263 INFO L85 PathProgramCache]: Analyzing trace with hash 191697843, now seen corresponding path program 1 times [2024-11-23 18:39:40,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:40,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059858321] [2024-11-23 18:39:40,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:40,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:48,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:40:48,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:48,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059858321] [2024-11-23 18:40:48,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059858321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:48,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:48,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 18:40:48,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464100278] [2024-11-23 18:40:48,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:48,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 18:40:48,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:48,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 18:40:48,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:40:48,549 INFO L87 Difference]: Start difference. First operand 241 states and 346 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:40:50,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:50,042 INFO L93 Difference]: Finished difference Result 300 states and 414 transitions. [2024-11-23 18:40:50,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 18:40:50,043 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 208 [2024-11-23 18:40:50,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:50,045 INFO L225 Difference]: With dead ends: 300 [2024-11-23 18:40:50,046 INFO L226 Difference]: Without dead ends: 298 [2024-11-23 18:40:50,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:40:50,046 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 79 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:50,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1118 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 18:40:50,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-23 18:40:50,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 236. [2024-11-23 18:40:50,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 162 states have (on average 1.2839506172839505) internal successors, (208), 162 states have internal predecessors, (208), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 18:40:50,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 340 transitions. [2024-11-23 18:40:50,093 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 340 transitions. Word has length 208 [2024-11-23 18:40:50,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:50,093 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 340 transitions. [2024-11-23 18:40:50,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:40:50,094 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 340 transitions. [2024-11-23 18:40:50,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-23 18:40:50,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:50,095 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:50,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 18:40:50,095 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:50,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:50,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1440379307, now seen corresponding path program 1 times [2024-11-23 18:40:50,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:50,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611726550] [2024-11-23 18:40:50,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:50,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:52,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:40:52,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:52,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611726550] [2024-11-23 18:40:52,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611726550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:52,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:52,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:40:52,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447125899] [2024-11-23 18:40:52,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:52,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:40:52,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:52,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:40:52,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:40:52,381 INFO L87 Difference]: Start difference. First operand 236 states and 340 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:40:52,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:52,712 INFO L93 Difference]: Finished difference Result 307 states and 424 transitions. [2024-11-23 18:40:52,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:40:52,713 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 209 [2024-11-23 18:40:52,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:52,715 INFO L225 Difference]: With dead ends: 307 [2024-11-23 18:40:52,715 INFO L226 Difference]: Without dead ends: 305 [2024-11-23 18:40:52,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-23 18:40:52,716 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 95 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:52,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 795 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:40:52,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-23 18:40:52,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 246. [2024-11-23 18:40:52,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 172 states have (on average 1.2906976744186047) internal successors, (222), 172 states have internal predecessors, (222), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 18:40:52,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 354 transitions. [2024-11-23 18:40:52,762 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 354 transitions. Word has length 209 [2024-11-23 18:40:52,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:52,763 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 354 transitions. [2024-11-23 18:40:52,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:40:52,763 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 354 transitions. [2024-11-23 18:40:52,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-23 18:40:52,764 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:52,764 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:52,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 18:40:52,764 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:52,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:52,765 INFO L85 PathProgramCache]: Analyzing trace with hash -785770292, now seen corresponding path program 1 times [2024-11-23 18:40:52,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:52,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839246099] [2024-11-23 18:40:52,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:52,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:28,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:41:28,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:28,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839246099] [2024-11-23 18:41:28,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839246099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:28,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:28,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 18:41:28,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860897896] [2024-11-23 18:41:28,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:28,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:41:28,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:28,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:41:28,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:41:28,076 INFO L87 Difference]: Start difference. First operand 246 states and 354 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:41:29,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:29,795 INFO L93 Difference]: Finished difference Result 305 states and 425 transitions. [2024-11-23 18:41:29,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:41:29,796 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 209 [2024-11-23 18:41:29,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:29,798 INFO L225 Difference]: With dead ends: 305 [2024-11-23 18:41:29,798 INFO L226 Difference]: Without dead ends: 303 [2024-11-23 18:41:29,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-23 18:41:29,799 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 85 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:29,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1022 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 18:41:29,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-23 18:41:29,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 248. [2024-11-23 18:41:29,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 174 states have (on average 1.2988505747126438) internal successors, (226), 174 states have internal predecessors, (226), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 18:41:29,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 358 transitions. [2024-11-23 18:41:29,847 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 358 transitions. Word has length 209 [2024-11-23 18:41:29,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:29,848 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 358 transitions. [2024-11-23 18:41:29,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:41:29,848 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 358 transitions. [2024-11-23 18:41:29,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-23 18:41:29,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:29,849 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:29,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 18:41:29,850 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:29,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:29,850 INFO L85 PathProgramCache]: Analyzing trace with hash 11907053, now seen corresponding path program 1 times [2024-11-23 18:41:29,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:29,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385309041] [2024-11-23 18:41:29,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:29,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:29,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:41:29,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:29,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385309041] [2024-11-23 18:41:29,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385309041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:29,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:29,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:41:29,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252671203] [2024-11-23 18:41:29,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:29,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:41:29,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:29,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:41:29,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:41:29,927 INFO L87 Difference]: Start difference. First operand 248 states and 358 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:41:30,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:30,064 INFO L93 Difference]: Finished difference Result 469 states and 663 transitions. [2024-11-23 18:41:30,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:41:30,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 210 [2024-11-23 18:41:30,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:30,066 INFO L225 Difference]: With dead ends: 469 [2024-11-23 18:41:30,067 INFO L226 Difference]: Without dead ends: 302 [2024-11-23 18:41:30,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:41:30,069 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 40 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:30,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 279 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:41:30,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-23 18:41:30,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 256. [2024-11-23 18:41:30,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 182 states have (on average 1.2857142857142858) internal successors, (234), 182 states have internal predecessors, (234), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 18:41:30,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 366 transitions. [2024-11-23 18:41:30,115 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 366 transitions. Word has length 210 [2024-11-23 18:41:30,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:30,115 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 366 transitions. [2024-11-23 18:41:30,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:41:30,116 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 366 transitions. [2024-11-23 18:41:30,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-23 18:41:30,117 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:30,117 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:30,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 18:41:30,117 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:30,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:30,118 INFO L85 PathProgramCache]: Analyzing trace with hash 213294386, now seen corresponding path program 1 times [2024-11-23 18:41:30,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:30,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919078035] [2024-11-23 18:41:30,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:30,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:30,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:41:30,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:30,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919078035] [2024-11-23 18:41:30,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919078035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:30,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:30,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:41:30,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755873631] [2024-11-23 18:41:30,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:30,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:41:30,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:30,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:41:30,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:41:30,193 INFO L87 Difference]: Start difference. First operand 256 states and 366 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:41:30,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:30,301 INFO L93 Difference]: Finished difference Result 471 states and 661 transitions. [2024-11-23 18:41:30,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:41:30,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 210 [2024-11-23 18:41:30,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:30,303 INFO L225 Difference]: With dead ends: 471 [2024-11-23 18:41:30,303 INFO L226 Difference]: Without dead ends: 296 [2024-11-23 18:41:30,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:41:30,304 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 43 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:30,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 248 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:30,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-23 18:41:30,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 256. [2024-11-23 18:41:30,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 182 states have (on average 1.2747252747252746) internal successors, (232), 182 states have internal predecessors, (232), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 18:41:30,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 364 transitions. [2024-11-23 18:41:30,352 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 364 transitions. Word has length 210 [2024-11-23 18:41:30,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:30,352 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 364 transitions. [2024-11-23 18:41:30,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:41:30,352 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 364 transitions. [2024-11-23 18:41:30,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-23 18:41:30,353 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:30,354 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:30,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 18:41:30,354 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:30,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:30,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1091909084, now seen corresponding path program 1 times [2024-11-23 18:41:30,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:30,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642536273] [2024-11-23 18:41:30,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:30,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-23 18:41:33,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:33,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642536273] [2024-11-23 18:41:33,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642536273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:33,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:33,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 18:41:33,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588160768] [2024-11-23 18:41:33,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:33,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 18:41:33,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:33,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 18:41:33,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:41:33,796 INFO L87 Difference]: Start difference. First operand 256 states and 364 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:41:34,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:34,410 INFO L93 Difference]: Finished difference Result 321 states and 438 transitions. [2024-11-23 18:41:34,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 18:41:34,411 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 210 [2024-11-23 18:41:34,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:34,413 INFO L225 Difference]: With dead ends: 321 [2024-11-23 18:41:34,413 INFO L226 Difference]: Without dead ends: 319 [2024-11-23 18:41:34,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:41:34,414 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 98 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:34,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1176 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 18:41:34,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-23 18:41:34,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 250. [2024-11-23 18:41:34,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 176 states have (on average 1.2784090909090908) internal successors, (225), 176 states have internal predecessors, (225), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-23 18:41:34,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 357 transitions. [2024-11-23 18:41:34,460 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 357 transitions. Word has length 210 [2024-11-23 18:41:34,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:34,460 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 357 transitions. [2024-11-23 18:41:34,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-23 18:41:34,460 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 357 transitions. [2024-11-23 18:41:34,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-23 18:41:34,462 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:34,462 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:34,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 18:41:34,462 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:34,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:34,463 INFO L85 PathProgramCache]: Analyzing trace with hash -263816016, now seen corresponding path program 1 times [2024-11-23 18:41:34,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:34,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559942942] [2024-11-23 18:41:34,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:34,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:35,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 24 proven. 72 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked. [2024-11-23 18:41:35,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:35,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559942942] [2024-11-23 18:41:35,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559942942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:41:35,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889855338] [2024-11-23 18:41:35,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:35,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:41:35,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:41:35,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:41:35,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b3a8b3-e830-49f8-a40b-1f0c352766f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:41:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:35,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-23 18:41:35,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:42:52,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 747 proven. 159 refuted. 0 times theorem prover too weak. 1206 trivial. 0 not checked. [2024-11-23 18:42:52,886 INFO L312 TraceCheckSpWp]: Computing backward predicates...