./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-37.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d2ac2ade0b5a8b4fe781342f1619d7dd5e5c5b8a1b1139b842ae9332f648993d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:28:21,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:28:21,232 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:28:21,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:28:21,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:28:21,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:28:21,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:28:21,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:28:21,301 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:28:21,301 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:28:21,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:28:21,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:28:21,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:28:21,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:28:21,304 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:28:21,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:28:21,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:28:21,305 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:28:21,305 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:28:21,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:28:21,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:28:21,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:28:21,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:28:21,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:28:21,308 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:28:21,308 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:28:21,308 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:28:21,308 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:28:21,308 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:28:21,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:28:21,309 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:28:21,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:28:21,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:28:21,309 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:28:21,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:28:21,309 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:28:21,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:28:21,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:28:21,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:28:21,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:28:21,310 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:28:21,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:28:21,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:28:21,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:28:21,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:28:21,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:28:21,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:28:21,310 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:28:21,311 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_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2ac2ade0b5a8b4fe781342f1619d7dd5e5c5b8a1b1139b842ae9332f648993d [2024-11-28 03:28:21,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:28:21,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:28:21,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:28:21,689 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:28:21,690 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:28:21,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-37.i [2024-11-28 03:28:24,919 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/data/54023f313/f57a83d6090c4761ab164c7999c5564a/FLAGea4f6d0c5 [2024-11-28 03:28:25,264 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:28:25,265 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-37.i [2024-11-28 03:28:25,280 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/data/54023f313/f57a83d6090c4761ab164c7999c5564a/FLAGea4f6d0c5 [2024-11-28 03:28:25,299 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/data/54023f313/f57a83d6090c4761ab164c7999c5564a [2024-11-28 03:28:25,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:28:25,304 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:28:25,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:28:25,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:28:25,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:28:25,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:28:25" (1/1) ... [2024-11-28 03:28:25,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579f00e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:25, skipping insertion in model container [2024-11-28 03:28:25,313 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:28:25" (1/1) ... [2024-11-28 03:28:25,360 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:28:25,556 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_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-37.i[916,929] [2024-11-28 03:28:25,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:28:25,842 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:28:25,857 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_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-37.i[916,929] [2024-11-28 03:28:26,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:28:26,054 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:28:26,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26 WrapperNode [2024-11-28 03:28:26,055 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:28:26,056 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:28:26,056 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:28:26,056 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:28:26,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26" (1/1) ... [2024-11-28 03:28:26,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26" (1/1) ... [2024-11-28 03:28:26,245 INFO L138 Inliner]: procedures = 26, calls = 138, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 874 [2024-11-28 03:28:26,246 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:28:26,247 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:28:26,248 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:28:26,248 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:28:26,259 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26" (1/1) ... [2024-11-28 03:28:26,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26" (1/1) ... [2024-11-28 03:28:26,272 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26" (1/1) ... [2024-11-28 03:28:26,343 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:28:26,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26" (1/1) ... [2024-11-28 03:28:26,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26" (1/1) ... [2024-11-28 03:28:26,386 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26" (1/1) ... [2024-11-28 03:28:26,389 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26" (1/1) ... [2024-11-28 03:28:26,406 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26" (1/1) ... [2024-11-28 03:28:26,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26" (1/1) ... [2024-11-28 03:28:26,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26" (1/1) ... [2024-11-28 03:28:26,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:28:26,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:28:26,454 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:28:26,454 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:28:26,455 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26" (1/1) ... [2024-11-28 03:28:26,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:28:26,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:28:26,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:28:26,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:28:26,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:28:26,534 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:28:26,535 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:28:26,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:28:26,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:28:26,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:28:26,754 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:28:26,757 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:28:29,047 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-28 03:28:29,047 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:28:29,087 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:28:29,087 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:28:29,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:28:29 BoogieIcfgContainer [2024-11-28 03:28:29,092 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:28:29,095 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:28:29,095 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:28:29,102 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:28:29,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:28:25" (1/3) ... [2024-11-28 03:28:29,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d5053d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:28:29, skipping insertion in model container [2024-11-28 03:28:29,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:26" (2/3) ... [2024-11-28 03:28:29,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d5053d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:28:29, skipping insertion in model container [2024-11-28 03:28:29,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:28:29" (3/3) ... [2024-11-28 03:28:29,107 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-37.i [2024-11-28 03:28:29,131 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:28:29,135 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-37.i that has 2 procedures, 363 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:28:29,232 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:28:29,245 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;@6d8ee218, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:28:29,245 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:28:29,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 363 states, 235 states have (on average 1.5659574468085107) internal successors, (368), 236 states have internal predecessors, (368), 125 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-28 03:28:29,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 03:28:29,305 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:29,306 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:29,307 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:29,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:29,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1034291145, now seen corresponding path program 1 times [2024-11-28 03:28:29,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:29,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631027143] [2024-11-28 03:28:29,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:29,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:30,642 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 30752 trivial. 0 not checked. [2024-11-28 03:28:30,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:30,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631027143] [2024-11-28 03:28:30,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631027143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:28:30,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297096228] [2024-11-28 03:28:30,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:30,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:30,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:28:30,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:28:30,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:28:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:31,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:28:31,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 30752 trivial. 0 not checked. [2024-11-28 03:28:31,552 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:28:31,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297096228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:31,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:28:31,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:28:31,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564752968] [2024-11-28 03:28:31,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:31,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:28:31,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:31,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:28:31,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:28:31,584 INFO L87 Difference]: Start difference. First operand has 363 states, 235 states have (on average 1.5659574468085107) internal successors, (368), 236 states have internal predecessors, (368), 125 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) Second operand has 2 states, 2 states have (on average 85.0) internal successors, (170), 2 states have internal predecessors, (170), 2 states have call successors, (125), 2 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 2 states have call successors, (125) [2024-11-28 03:28:31,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:31,673 INFO L93 Difference]: Finished difference Result 719 states and 1355 transitions. [2024-11-28 03:28:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:28:31,675 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 85.0) internal successors, (170), 2 states have internal predecessors, (170), 2 states have call successors, (125), 2 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 2 states have call successors, (125) Word has length 790 [2024-11-28 03:28:31,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:31,687 INFO L225 Difference]: With dead ends: 719 [2024-11-28 03:28:31,687 INFO L226 Difference]: Without dead ends: 359 [2024-11-28 03:28:31,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 791 GetRequests, 791 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:28:31,700 INFO L435 NwaCegarLoop]: 607 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, 607 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:31,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:28:31,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-28 03:28:31,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-28 03:28:31,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 232 states have (on average 1.5387931034482758) internal successors, (357), 232 states have internal predecessors, (357), 125 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-28 03:28:31,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 607 transitions. [2024-11-28 03:28:31,830 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 607 transitions. Word has length 790 [2024-11-28 03:28:31,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:31,831 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 607 transitions. [2024-11-28 03:28:31,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 85.0) internal successors, (170), 2 states have internal predecessors, (170), 2 states have call successors, (125), 2 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 2 states have call successors, (125) [2024-11-28 03:28:31,832 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 607 transitions. [2024-11-28 03:28:31,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 03:28:31,857 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:31,858 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:31,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:28:32,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faf39d87-72c5-45c4-8cbf-3b0ccd99bf78/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:28:32,059 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:32,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:32,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1225024663, now seen corresponding path program 1 times [2024-11-28 03:28:32,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:32,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028276832] [2024-11-28 03:28:32,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:32,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:33,362 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2024-11-28 03:28:33,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:33,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028276832] [2024-11-28 03:28:33,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028276832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:33,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:33,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:28:33,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507750857] [2024-11-28 03:28:33,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:33,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:28:33,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:33,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:28:33,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:28:33,371 INFO L87 Difference]: Start difference. First operand 359 states and 607 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:33,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:33,575 INFO L93 Difference]: Finished difference Result 911 states and 1547 transitions. [2024-11-28 03:28:33,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:28:33,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) Word has length 790 [2024-11-28 03:28:33,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:33,593 INFO L225 Difference]: With dead ends: 911 [2024-11-28 03:28:33,593 INFO L226 Difference]: Without dead ends: 555 [2024-11-28 03:28:33,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:28:33,598 INFO L435 NwaCegarLoop]: 813 mSDtfsCounter, 330 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:33,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1406 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:28:33,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-28 03:28:33,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 552. [2024-11-28 03:28:33,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 384 states have (on average 1.5859375) internal successors, (609), 385 states have internal predecessors, (609), 165 states have call successors, (165), 2 states have call predecessors, (165), 2 states have return successors, (165), 164 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 03:28:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 939 transitions. [2024-11-28 03:28:33,737 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 939 transitions. Word has length 790 [2024-11-28 03:28:33,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:33,740 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 939 transitions. [2024-11-28 03:28:33,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:33,741 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 939 transitions. [2024-11-28 03:28:33,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 03:28:33,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:33,775 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:33,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:28:33,775 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:33,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:33,776 INFO L85 PathProgramCache]: Analyzing trace with hash 82522197, now seen corresponding path program 1 times [2024-11-28 03:28:33,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:33,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820956405] [2024-11-28 03:28:33,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:33,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:34,574 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2024-11-28 03:28:34,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:34,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820956405] [2024-11-28 03:28:34,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820956405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:34,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:34,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:28:34,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301310696] [2024-11-28 03:28:34,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:34,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:28:34,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:34,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:28:34,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:28:34,581 INFO L87 Difference]: Start difference. First operand 552 states and 939 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:34,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:34,739 INFO L93 Difference]: Finished difference Result 1108 states and 1880 transitions. [2024-11-28 03:28:34,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:28:34,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) Word has length 790 [2024-11-28 03:28:34,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:34,757 INFO L225 Difference]: With dead ends: 1108 [2024-11-28 03:28:34,758 INFO L226 Difference]: Without dead ends: 559 [2024-11-28 03:28:34,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:28:34,765 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 301 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:34,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1211 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:28:34,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-11-28 03:28:34,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 427. [2024-11-28 03:28:34,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 299 states have (on average 1.5819397993311037) internal successors, (473), 299 states have internal predecessors, (473), 125 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-28 03:28:34,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 723 transitions. [2024-11-28 03:28:34,852 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 723 transitions. Word has length 790 [2024-11-28 03:28:34,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:34,859 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 723 transitions. [2024-11-28 03:28:34,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:34,860 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 723 transitions. [2024-11-28 03:28:34,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 03:28:34,874 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:34,874 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:34,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:28:34,875 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:34,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:34,876 INFO L85 PathProgramCache]: Analyzing trace with hash 976008535, now seen corresponding path program 1 times [2024-11-28 03:28:34,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:34,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335602707] [2024-11-28 03:28:34,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:34,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:35,597 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2024-11-28 03:28:35,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:35,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335602707] [2024-11-28 03:28:35,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335602707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:35,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:35,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:28:35,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934677083] [2024-11-28 03:28:35,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:35,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:28:35,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:35,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:28:35,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:28:35,602 INFO L87 Difference]: Start difference. First operand 427 states and 723 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:35,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:35,698 INFO L93 Difference]: Finished difference Result 1129 states and 1924 transitions. [2024-11-28 03:28:35,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:28:35,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) Word has length 790 [2024-11-28 03:28:35,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:35,709 INFO L225 Difference]: With dead ends: 1129 [2024-11-28 03:28:35,709 INFO L226 Difference]: Without dead ends: 705 [2024-11-28 03:28:35,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:28:35,715 INFO L435 NwaCegarLoop]: 706 mSDtfsCounter, 308 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:35,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 1302 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:28:35,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-28 03:28:35,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 702. [2024-11-28 03:28:35,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 535 states have (on average 1.6317757009345795) internal successors, (873), 536 states have internal predecessors, (873), 163 states have call successors, (163), 3 states have call predecessors, (163), 3 states have return successors, (163), 162 states have call predecessors, (163), 163 states have call successors, (163) [2024-11-28 03:28:35,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1199 transitions. [2024-11-28 03:28:35,795 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1199 transitions. Word has length 790 [2024-11-28 03:28:35,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:35,798 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 1199 transitions. [2024-11-28 03:28:35,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:35,799 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1199 transitions. [2024-11-28 03:28:35,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 03:28:35,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:35,810 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:35,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:28:35,811 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:35,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:35,812 INFO L85 PathProgramCache]: Analyzing trace with hash -127829925, now seen corresponding path program 1 times [2024-11-28 03:28:35,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:35,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540056261] [2024-11-28 03:28:35,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:35,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:36,416 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2024-11-28 03:28:36,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:36,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540056261] [2024-11-28 03:28:36,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540056261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:36,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:36,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:28:36,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251791751] [2024-11-28 03:28:36,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:36,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:28:36,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:36,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:28:36,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:28:36,422 INFO L87 Difference]: Start difference. First operand 702 states and 1199 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:36,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:36,561 INFO L93 Difference]: Finished difference Result 1912 states and 3271 transitions. [2024-11-28 03:28:36,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:28:36,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) Word has length 790 [2024-11-28 03:28:36,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:36,582 INFO L225 Difference]: With dead ends: 1912 [2024-11-28 03:28:36,582 INFO L226 Difference]: Without dead ends: 1213 [2024-11-28 03:28:36,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:28:36,587 INFO L435 NwaCegarLoop]: 713 mSDtfsCounter, 280 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:36,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 1304 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:28:36,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2024-11-28 03:28:36,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1210. [2024-11-28 03:28:36,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 960 states have (on average 1.6427083333333334) internal successors, (1577), 963 states have internal predecessors, (1577), 243 states have call successors, (243), 6 states have call predecessors, (243), 6 states have return successors, (243), 240 states have call predecessors, (243), 243 states have call successors, (243) [2024-11-28 03:28:36,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 2063 transitions. [2024-11-28 03:28:36,733 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 2063 transitions. Word has length 790 [2024-11-28 03:28:36,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:36,736 INFO L471 AbstractCegarLoop]: Abstraction has 1210 states and 2063 transitions. [2024-11-28 03:28:36,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:36,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 2063 transitions. [2024-11-28 03:28:36,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 03:28:36,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:36,748 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:36,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:28:36,748 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:36,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:36,750 INFO L85 PathProgramCache]: Analyzing trace with hash -121294821, now seen corresponding path program 1 times [2024-11-28 03:28:36,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:36,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312558669] [2024-11-28 03:28:36,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:36,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:37,637 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2024-11-28 03:28:37,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:37,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312558669] [2024-11-28 03:28:37,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312558669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:37,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:37,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:28:37,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404238124] [2024-11-28 03:28:37,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:37,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:28:37,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:37,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:28:37,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:28:37,644 INFO L87 Difference]: Start difference. First operand 1210 states and 2063 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:37,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:37,917 INFO L93 Difference]: Finished difference Result 3377 states and 5776 transitions. [2024-11-28 03:28:37,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:28:37,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) Word has length 790 [2024-11-28 03:28:37,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:37,936 INFO L225 Difference]: With dead ends: 3377 [2024-11-28 03:28:37,937 INFO L226 Difference]: Without dead ends: 2170 [2024-11-28 03:28:37,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:28:37,943 INFO L435 NwaCegarLoop]: 583 mSDtfsCounter, 321 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:37,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 1145 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:28:37,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2024-11-28 03:28:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2164. [2024-11-28 03:28:38,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 1806 states have (on average 1.669435215946844) internal successors, (3015), 1813 states have internal predecessors, (3015), 347 states have call successors, (347), 10 states have call predecessors, (347), 10 states have return successors, (347), 340 states have call predecessors, (347), 347 states have call successors, (347) [2024-11-28 03:28:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 3709 transitions. [2024-11-28 03:28:38,168 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 3709 transitions. Word has length 790 [2024-11-28 03:28:38,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:38,171 INFO L471 AbstractCegarLoop]: Abstraction has 2164 states and 3709 transitions. [2024-11-28 03:28:38,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:38,171 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 3709 transitions. [2024-11-28 03:28:38,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 03:28:38,184 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:38,185 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:38,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:28:38,185 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:38,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:38,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2079869607, now seen corresponding path program 1 times [2024-11-28 03:28:38,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:38,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314142210] [2024-11-28 03:28:38,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:38,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:39,718 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2024-11-28 03:28:39,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:39,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314142210] [2024-11-28 03:28:39,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314142210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:39,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:39,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:28:39,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838887173] [2024-11-28 03:28:39,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:39,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:28:39,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:39,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:28:39,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:28:39,722 INFO L87 Difference]: Start difference. First operand 2164 states and 3709 transitions. Second operand has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 2 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2024-11-28 03:28:44,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:44,130 INFO L93 Difference]: Finished difference Result 12721 states and 21847 transitions. [2024-11-28 03:28:44,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:28:44,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 2 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 790 [2024-11-28 03:28:44,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:44,196 INFO L225 Difference]: With dead ends: 12721 [2024-11-28 03:28:44,196 INFO L226 Difference]: Without dead ends: 10560 [2024-11-28 03:28:44,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:28:44,207 INFO L435 NwaCegarLoop]: 967 mSDtfsCounter, 1998 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 2187 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 4266 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 2187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:44,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1998 Valid, 4266 Invalid, 2513 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [326 Valid, 2187 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-28 03:28:44,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10560 states. [2024-11-28 03:28:44,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10560 to 10534. [2024-11-28 03:28:44,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10534 states, 8890 states have (on average 1.6761529808773903) internal successors, (14901), 8927 states have internal predecessors, (14901), 1593 states have call successors, (1593), 50 states have call predecessors, (1593), 50 states have return successors, (1593), 1556 states have call predecessors, (1593), 1593 states have call successors, (1593) [2024-11-28 03:28:45,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10534 states to 10534 states and 18087 transitions. [2024-11-28 03:28:45,057 INFO L78 Accepts]: Start accepts. Automaton has 10534 states and 18087 transitions. Word has length 790 [2024-11-28 03:28:45,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:45,058 INFO L471 AbstractCegarLoop]: Abstraction has 10534 states and 18087 transitions. [2024-11-28 03:28:45,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 2 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2024-11-28 03:28:45,059 INFO L276 IsEmpty]: Start isEmpty. Operand 10534 states and 18087 transitions. [2024-11-28 03:28:45,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 03:28:45,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:45,088 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:45,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:28:45,088 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:45,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:45,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1068752357, now seen corresponding path program 1 times [2024-11-28 03:28:45,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:45,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161971957] [2024-11-28 03:28:45,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:45,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:45,848 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2024-11-28 03:28:45,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:45,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161971957] [2024-11-28 03:28:45,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161971957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:45,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:45,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:28:45,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933656134] [2024-11-28 03:28:45,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:45,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:28:45,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:45,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:28:45,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:28:45,851 INFO L87 Difference]: Start difference. First operand 10534 states and 18087 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:46,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:46,541 INFO L93 Difference]: Finished difference Result 14725 states and 25288 transitions. [2024-11-28 03:28:46,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:28:46,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) Word has length 790 [2024-11-28 03:28:46,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:46,622 INFO L225 Difference]: With dead ends: 14725 [2024-11-28 03:28:46,623 INFO L226 Difference]: Without dead ends: 8379 [2024-11-28 03:28:46,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:28:46,642 INFO L435 NwaCegarLoop]: 944 mSDtfsCounter, 375 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:46,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1798 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:28:46,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8379 states. [2024-11-28 03:28:47,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8379 to 4190. [2024-11-28 03:28:47,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 3546 states have (on average 1.6748448956570785) internal successors, (5939), 3561 states have internal predecessors, (5939), 623 states have call successors, (623), 20 states have call predecessors, (623), 20 states have return successors, (623), 608 states have call predecessors, (623), 623 states have call successors, (623) [2024-11-28 03:28:47,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 7185 transitions. [2024-11-28 03:28:47,062 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 7185 transitions. Word has length 790 [2024-11-28 03:28:47,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:47,063 INFO L471 AbstractCegarLoop]: Abstraction has 4190 states and 7185 transitions. [2024-11-28 03:28:47,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:47,065 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 7185 transitions. [2024-11-28 03:28:47,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 03:28:47,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:47,077 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:47,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:28:47,080 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:47,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:47,082 INFO L85 PathProgramCache]: Analyzing trace with hash 335966743, now seen corresponding path program 1 times [2024-11-28 03:28:47,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:47,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991807413] [2024-11-28 03:28:47,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:47,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:47,739 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2024-11-28 03:28:47,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:47,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991807413] [2024-11-28 03:28:47,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991807413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:47,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:47,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:28:47,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885036668] [2024-11-28 03:28:47,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:47,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:28:47,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:47,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:28:47,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:28:47,743 INFO L87 Difference]: Start difference. First operand 4190 states and 7185 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:48,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:48,767 INFO L93 Difference]: Finished difference Result 12580 states and 21581 transitions. [2024-11-28 03:28:48,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:28:48,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) Word has length 790 [2024-11-28 03:28:48,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:48,805 INFO L225 Difference]: With dead ends: 12580 [2024-11-28 03:28:48,806 INFO L226 Difference]: Without dead ends: 8393 [2024-11-28 03:28:48,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:28:48,818 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 330 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:48,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1503 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:28:48,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8393 states. [2024-11-28 03:28:49,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8393 to 8391. [2024-11-28 03:28:49,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8391 states, 7104 states have (on average 1.673704954954955) internal successors, (11890), 7134 states have internal predecessors, (11890), 1246 states have call successors, (1246), 40 states have call predecessors, (1246), 40 states have return successors, (1246), 1216 states have call predecessors, (1246), 1246 states have call successors, (1246) [2024-11-28 03:28:49,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8391 states to 8391 states and 14382 transitions. [2024-11-28 03:28:49,585 INFO L78 Accepts]: Start accepts. Automaton has 8391 states and 14382 transitions. Word has length 790 [2024-11-28 03:28:49,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:49,591 INFO L471 AbstractCegarLoop]: Abstraction has 8391 states and 14382 transitions. [2024-11-28 03:28:49,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:49,591 INFO L276 IsEmpty]: Start isEmpty. Operand 8391 states and 14382 transitions. [2024-11-28 03:28:49,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 03:28:49,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:49,626 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:49,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:28:49,626 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:49,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:49,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1347083993, now seen corresponding path program 1 times [2024-11-28 03:28:49,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:49,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243618028] [2024-11-28 03:28:49,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:49,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:51,887 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2024-11-28 03:28:51,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:51,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243618028] [2024-11-28 03:28:51,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243618028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:51,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:51,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:28:51,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719087564] [2024-11-28 03:28:51,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:51,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:28:51,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:51,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:28:51,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:28:51,891 INFO L87 Difference]: Start difference. First operand 8391 states and 14382 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:54,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:54,247 INFO L93 Difference]: Finished difference Result 28414 states and 48777 transitions. [2024-11-28 03:28:54,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:28:54,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) Word has length 790 [2024-11-28 03:28:54,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:54,334 INFO L225 Difference]: With dead ends: 28414 [2024-11-28 03:28:54,335 INFO L226 Difference]: Without dead ends: 20026 [2024-11-28 03:28:54,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:28:54,364 INFO L435 NwaCegarLoop]: 869 mSDtfsCounter, 1276 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:54,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 2014 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:28:54,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20026 states. [2024-11-28 03:28:55,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20026 to 19988. [2024-11-28 03:28:55,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19988 states, 17386 states have (on average 1.6841711722075232) internal successors, (29281), 17463 states have internal predecessors, (29281), 2509 states have call successors, (2509), 92 states have call predecessors, (2509), 92 states have return successors, (2509), 2432 states have call predecessors, (2509), 2509 states have call successors, (2509) [2024-11-28 03:28:55,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19988 states to 19988 states and 34299 transitions. [2024-11-28 03:28:55,573 INFO L78 Accepts]: Start accepts. Automaton has 19988 states and 34299 transitions. Word has length 790 [2024-11-28 03:28:55,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:55,574 INFO L471 AbstractCegarLoop]: Abstraction has 19988 states and 34299 transitions. [2024-11-28 03:28:55,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:28:55,575 INFO L276 IsEmpty]: Start isEmpty. Operand 19988 states and 34299 transitions. [2024-11-28 03:28:55,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-28 03:28:55,600 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:55,600 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:55,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:28:55,601 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:55,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:55,602 INFO L85 PathProgramCache]: Analyzing trace with hash 604623541, now seen corresponding path program 1 times [2024-11-28 03:28:55,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:55,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894066910] [2024-11-28 03:28:55,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:55,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:57,414 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2024-11-28 03:28:57,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:57,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894066910] [2024-11-28 03:28:57,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894066910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:57,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:57,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:28:57,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189694324] [2024-11-28 03:28:57,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:57,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:28:57,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:57,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:28:57,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:28:57,419 INFO L87 Difference]: Start difference. First operand 19988 states and 34299 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:29:00,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:00,054 INFO L93 Difference]: Finished difference Result 56494 states and 96681 transitions. [2024-11-28 03:29:00,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:00,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) Word has length 790 [2024-11-28 03:29:00,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:00,228 INFO L225 Difference]: With dead ends: 56494 [2024-11-28 03:29:00,228 INFO L226 Difference]: Without dead ends: 36509 [2024-11-28 03:29:00,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:00,287 INFO L435 NwaCegarLoop]: 1045 mSDtfsCounter, 584 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:00,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1633 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:29:00,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36509 states. [2024-11-28 03:29:03,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36509 to 36497. [2024-11-28 03:29:03,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36497 states, 31294 states have (on average 1.668626573784112) internal successors, (52218), 31448 states have internal predecessors, (52218), 5018 states have call successors, (5018), 184 states have call predecessors, (5018), 184 states have return successors, (5018), 4864 states have call predecessors, (5018), 5018 states have call successors, (5018) [2024-11-28 03:29:03,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36497 states to 36497 states and 62254 transitions. [2024-11-28 03:29:03,621 INFO L78 Accepts]: Start accepts. Automaton has 36497 states and 62254 transitions. Word has length 790 [2024-11-28 03:29:03,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:03,628 INFO L471 AbstractCegarLoop]: Abstraction has 36497 states and 62254 transitions. [2024-11-28 03:29:03,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:29:03,628 INFO L276 IsEmpty]: Start isEmpty. Operand 36497 states and 62254 transitions. [2024-11-28 03:29:03,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2024-11-28 03:29:03,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:03,696 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:03,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:29:03,696 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:29:03,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:03,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1997755123, now seen corresponding path program 1 times [2024-11-28 03:29:03,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:03,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537672556] [2024-11-28 03:29:03,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:03,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:06,517 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2024-11-28 03:29:06,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:06,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537672556] [2024-11-28 03:29:06,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537672556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:06,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:06,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:29:06,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923906443] [2024-11-28 03:29:06,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:06,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:29:06,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:06,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:29:06,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:29:06,521 INFO L87 Difference]: Start difference. First operand 36497 states and 62254 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:29:13,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:13,070 INFO L93 Difference]: Finished difference Result 99145 states and 168280 transitions. [2024-11-28 03:29:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:29:13,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) Word has length 791 [2024-11-28 03:29:13,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:13,435 INFO L225 Difference]: With dead ends: 99145 [2024-11-28 03:29:13,435 INFO L226 Difference]: Without dead ends: 62651 [2024-11-28 03:29:13,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:29:13,544 INFO L435 NwaCegarLoop]: 691 mSDtfsCounter, 998 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:13,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 2082 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:29:13,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62651 states. [2024-11-28 03:29:17,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62651 to 49937. [2024-11-28 03:29:17,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49937 states, 44734 states have (on average 1.6975454911253185) internal successors, (75938), 44888 states have internal predecessors, (75938), 5018 states have call successors, (5018), 184 states have call predecessors, (5018), 184 states have return successors, (5018), 4864 states have call predecessors, (5018), 5018 states have call successors, (5018) [2024-11-28 03:29:18,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49937 states to 49937 states and 85974 transitions. [2024-11-28 03:29:18,115 INFO L78 Accepts]: Start accepts. Automaton has 49937 states and 85974 transitions. Word has length 791 [2024-11-28 03:29:18,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:18,117 INFO L471 AbstractCegarLoop]: Abstraction has 49937 states and 85974 transitions. [2024-11-28 03:29:18,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 1 states have call predecessors, (125), 1 states have call successors, (125) [2024-11-28 03:29:18,117 INFO L276 IsEmpty]: Start isEmpty. Operand 49937 states and 85974 transitions. [2024-11-28 03:29:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2024-11-28 03:29:18,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:18,167 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:18,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:29:18,168 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:29:18,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:18,169 INFO L85 PathProgramCache]: Analyzing trace with hash 2073593011, now seen corresponding path program 1 times [2024-11-28 03:29:18,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:18,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835433923] [2024-11-28 03:29:18,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:18,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:34,079 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2024-11-28 03:29:34,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:34,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835433923] [2024-11-28 03:29:34,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835433923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:34,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:34,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:29:34,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765985504] [2024-11-28 03:29:34,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:34,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:29:34,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:34,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:29:34,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:29:34,083 INFO L87 Difference]: Start difference. First operand 49937 states and 85974 transitions. Second operand has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 2 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2024-11-28 03:29:55,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:55,723 INFO L93 Difference]: Finished difference Result 162580 states and 278573 transitions. [2024-11-28 03:29:55,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:29:55,724 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 2 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 791 [2024-11-28 03:29:55,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:56,084 INFO L225 Difference]: With dead ends: 162580 [2024-11-28 03:29:56,084 INFO L226 Difference]: Without dead ends: 112646 [2024-11-28 03:29:56,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:29:56,184 INFO L435 NwaCegarLoop]: 682 mSDtfsCounter, 6564 mSDsluCounter, 3820 mSDsCounter, 0 mSdLazyCounter, 3215 mSolverCounterSat, 1136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6564 SdHoareTripleChecker+Valid, 4502 SdHoareTripleChecker+Invalid, 4351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1136 IncrementalHoareTripleChecker+Valid, 3215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:56,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6564 Valid, 4502 Invalid, 4351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1136 Valid, 3215 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2024-11-28 03:29:56,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112646 states. [2024-11-28 03:30:02,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112646 to 49309. [2024-11-28 03:30:02,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49309 states, 43546 states have (on average 1.6830478115096679) internal successors, (73290), 43700 states have internal predecessors, (73290), 5490 states have call successors, (5490), 272 states have call predecessors, (5490), 272 states have return successors, (5490), 5336 states have call predecessors, (5490), 5490 states have call successors, (5490) [2024-11-28 03:30:02,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49309 states to 49309 states and 84270 transitions. [2024-11-28 03:30:02,786 INFO L78 Accepts]: Start accepts. Automaton has 49309 states and 84270 transitions. Word has length 791 [2024-11-28 03:30:02,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:02,788 INFO L471 AbstractCegarLoop]: Abstraction has 49309 states and 84270 transitions. [2024-11-28 03:30:02,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 2 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2024-11-28 03:30:02,788 INFO L276 IsEmpty]: Start isEmpty. Operand 49309 states and 84270 transitions. [2024-11-28 03:30:02,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2024-11-28 03:30:02,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:02,869 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:02,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:30:02,869 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:02,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:02,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1052524657, now seen corresponding path program 1 times [2024-11-28 03:30:02,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:02,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342819645] [2024-11-28 03:30:02,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:02,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:30,313 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2024-11-28 03:30:30,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:30,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342819645] [2024-11-28 03:30:30,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342819645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:30,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:30,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:30:30,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350035245] [2024-11-28 03:30:30,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:30,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:30:30,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:30,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:30:30,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:30:30,321 INFO L87 Difference]: Start difference. First operand 49309 states and 84270 transitions. Second operand has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 2 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2024-11-28 03:30:53,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:53,161 INFO L93 Difference]: Finished difference Result 162584 states and 277949 transitions. [2024-11-28 03:30:53,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 03:30:53,161 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 2 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 791 [2024-11-28 03:30:53,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:53,538 INFO L225 Difference]: With dead ends: 162584 [2024-11-28 03:30:53,538 INFO L226 Difference]: Without dead ends: 110742 [2024-11-28 03:30:53,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:30:53,614 INFO L435 NwaCegarLoop]: 706 mSDtfsCounter, 10064 mSDsluCounter, 4414 mSDsCounter, 0 mSdLazyCounter, 3090 mSolverCounterSat, 1835 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10064 SdHoareTripleChecker+Valid, 5120 SdHoareTripleChecker+Invalid, 4925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1835 IncrementalHoareTripleChecker+Valid, 3090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:53,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10064 Valid, 5120 Invalid, 4925 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1835 Valid, 3090 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2024-11-28 03:30:53,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110742 states. [2024-11-28 03:31:01,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110742 to 67697. [2024-11-28 03:31:01,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67697 states, 59914 states have (on average 1.6849484260773775) internal successors, (100952), 60120 states have internal predecessors, (100952), 7422 states have call successors, (7422), 360 states have call predecessors, (7422), 360 states have return successors, (7422), 7216 states have call predecessors, (7422), 7422 states have call successors, (7422) [2024-11-28 03:31:01,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67697 states to 67697 states and 115796 transitions. [2024-11-28 03:31:01,444 INFO L78 Accepts]: Start accepts. Automaton has 67697 states and 115796 transitions. Word has length 791 [2024-11-28 03:31:01,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:01,446 INFO L471 AbstractCegarLoop]: Abstraction has 67697 states and 115796 transitions. [2024-11-28 03:31:01,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 2 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2024-11-28 03:31:01,446 INFO L276 IsEmpty]: Start isEmpty. Operand 67697 states and 115796 transitions. [2024-11-28 03:31:01,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2024-11-28 03:31:01,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:01,851 INFO L218 NwaCegarLoop]: trace histogram [125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:01,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:31:01,852 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:01,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:01,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1266515819, now seen corresponding path program 1 times [2024-11-28 03:31:01,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:01,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670038635] [2024-11-28 03:31:01,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:01,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:05,394 INFO L134 CoverageAnalysis]: Checked inductivity of 31000 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2024-11-28 03:31:05,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:05,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670038635] [2024-11-28 03:31:05,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670038635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:31:05,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:31:05,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:31:05,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822974577] [2024-11-28 03:31:05,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:31:05,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:31:05,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:31:05,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:31:05,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:31:05,403 INFO L87 Difference]: Start difference. First operand 67697 states and 115796 transitions. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 2 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2024-11-28 03:31:21,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:21,051 INFO L93 Difference]: Finished difference Result 197167 states and 337433 transitions. [2024-11-28 03:31:21,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:31:21,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 2 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 791 [2024-11-28 03:31:21,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:21,357 INFO L225 Difference]: With dead ends: 197167 [2024-11-28 03:31:21,357 INFO L226 Difference]: Without dead ends: 129473 [2024-11-28 03:31:21,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:31:21,470 INFO L435 NwaCegarLoop]: 626 mSDtfsCounter, 2238 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:21,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2238 Valid, 2290 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1134 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:31:21,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129473 states.