./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd --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 0bbf22098def83a979a93dd8fa66adb7d528ee9621686d1c01784de1384e9197 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:27:59,176 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:27:59,286 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:27:59,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:27:59,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:27:59,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:27:59,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:27:59,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:27:59,337 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:27:59,337 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:27:59,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:27:59,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:27:59,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:27:59,339 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:27:59,339 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:27:59,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:27:59,340 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:27:59,340 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:27:59,340 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:27:59,340 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:27:59,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:27:59,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:27:59,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:27:59,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:27:59,341 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:27:59,341 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:27:59,341 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:27:59,341 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:27:59,342 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:27:59,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:27:59,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:27:59,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:27:59,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:27:59,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:27:59,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:27:59,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:27:59,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:27:59,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:27:59,342 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:27:59,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:27:59,343 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:27:59,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:27:59,343 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_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd 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 -> 0bbf22098def83a979a93dd8fa66adb7d528ee9621686d1c01784de1384e9197 [2024-11-13 14:27:59,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:27:59,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:27:59,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:27:59,697 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:27:59,698 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:27:59,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label09.c Unable to find full path for "g++" [2024-11-13 14:28:01,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:28:02,357 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:28:02,358 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-11-13 14:28:02,391 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/data/ea8d8063e/656bdddd63c3494bb667e4a4972c5fe3/FLAGa59cd71f6 [2024-11-13 14:28:02,686 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/data/ea8d8063e/656bdddd63c3494bb667e4a4972c5fe3 [2024-11-13 14:28:02,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:28:02,690 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:28:02,692 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:28:02,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:28:02,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:28:02,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:02" (1/1) ... [2024-11-13 14:28:02,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@427bdc93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:02, skipping insertion in model container [2024-11-13 14:28:02,700 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:02" (1/1) ... [2024-11-13 14:28:02,819 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:28:03,182 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_c02bcc5a-551b-4684-a67b-85d5c92c86d5/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label09.c[11668,11681] [2024-11-13 14:28:03,257 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_c02bcc5a-551b-4684-a67b-85d5c92c86d5/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label09.c[19416,19429] [2024-11-13 14:28:04,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:28:04,171 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:28:04,231 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_c02bcc5a-551b-4684-a67b-85d5c92c86d5/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label09.c[11668,11681] [2024-11-13 14:28:04,257 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_c02bcc5a-551b-4684-a67b-85d5c92c86d5/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label09.c[19416,19429] [2024-11-13 14:28:04,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:28:04,843 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:28:04,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:04 WrapperNode [2024-11-13 14:28:04,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:28:04,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:28:04,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:28:04,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:28:04,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:04" (1/1) ... [2024-11-13 14:28:04,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:04" (1/1) ... [2024-11-13 14:28:05,349 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5095 [2024-11-13 14:28:05,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:28:05,351 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:28:05,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:28:05,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:28:05,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:04" (1/1) ... [2024-11-13 14:28:05,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:04" (1/1) ... [2024-11-13 14:28:05,411 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:04" (1/1) ... [2024-11-13 14:28:05,649 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]. [2024-11-13 14:28:05,650 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:04" (1/1) ... [2024-11-13 14:28:05,650 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:04" (1/1) ... [2024-11-13 14:28:05,853 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:04" (1/1) ... [2024-11-13 14:28:05,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:04" (1/1) ... [2024-11-13 14:28:05,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:04" (1/1) ... [2024-11-13 14:28:05,943 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:04" (1/1) ... [2024-11-13 14:28:06,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:28:06,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:28:06,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:28:06,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:28:06,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:04" (1/1) ... [2024-11-13 14:28:06,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:28:06,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:06,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:28:06,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:28:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:28:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:28:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:28:06,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:28:06,242 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:28:06,244 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:28:13,137 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-13 14:28:13,138 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:28:13,183 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:28:13,184 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 14:28:13,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:13 BoogieIcfgContainer [2024-11-13 14:28:13,184 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:28:13,187 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:28:13,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:28:13,192 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:28:13,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:28:02" (1/3) ... [2024-11-13 14:28:13,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3347d0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:13, skipping insertion in model container [2024-11-13 14:28:13,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:04" (2/3) ... [2024-11-13 14:28:13,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3347d0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:13, skipping insertion in model container [2024-11-13 14:28:13,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:13" (3/3) ... [2024-11-13 14:28:13,195 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-11-13 14:28:13,212 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:28:13,215 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label09.c that has 1 procedures, 901 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-13 14:28:13,310 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:28:13,329 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;@35116cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:28:13,331 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 14:28:13,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:13,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 14:28:13,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:13,354 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:13,354 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:13,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:13,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1186667804, now seen corresponding path program 1 times [2024-11-13 14:28:13,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:13,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413123158] [2024-11-13 14:28:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:13,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:13,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:13,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:13,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413123158] [2024-11-13 14:28:13,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413123158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:13,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:13,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:28:13,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834072893] [2024-11-13 14:28:13,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:13,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:28:13,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:13,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:28:13,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:28:13,726 INFO L87 Difference]: Start difference. First operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:13,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:13,856 INFO L93 Difference]: Finished difference Result 1763 states and 3348 transitions. [2024-11-13 14:28:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:28:13,858 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-13 14:28:13,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:13,873 INFO L225 Difference]: With dead ends: 1763 [2024-11-13 14:28:13,873 INFO L226 Difference]: Without dead ends: 835 [2024-11-13 14:28:13,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:28:13,887 INFO L432 NwaCegarLoop]: 1641 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, 1641 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 [2024-11-13 14:28:13,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:13,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-13 14:28:13,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2024-11-13 14:28:13,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.893157262905162) internal successors, (1577), 834 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:13,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1577 transitions. [2024-11-13 14:28:13,970 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1577 transitions. Word has length 24 [2024-11-13 14:28:13,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:13,971 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1577 transitions. [2024-11-13 14:28:13,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:13,971 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1577 transitions. [2024-11-13 14:28:13,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 14:28:13,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:13,973 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:13,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:28:13,974 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:13,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:13,978 INFO L85 PathProgramCache]: Analyzing trace with hash -807476902, now seen corresponding path program 1 times [2024-11-13 14:28:13,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:13,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278242329] [2024-11-13 14:28:13,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:13,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:14,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:14,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:14,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278242329] [2024-11-13 14:28:14,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278242329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:14,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:14,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:28:14,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806061819] [2024-11-13 14:28:14,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:14,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:28:14,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:14,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:28:14,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:28:14,357 INFO L87 Difference]: Start difference. First operand 835 states and 1577 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:14,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:14,551 INFO L93 Difference]: Finished difference Result 883 states and 1651 transitions. [2024-11-13 14:28:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:28:14,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-13 14:28:14,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:14,559 INFO L225 Difference]: With dead ends: 883 [2024-11-13 14:28:14,562 INFO L226 Difference]: Without dead ends: 835 [2024-11-13 14:28:14,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:28:14,563 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 0 mSDsluCounter, 4689 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6264 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:14,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6264 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:28:14,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-13 14:28:14,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2024-11-13 14:28:14,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.8559423769507803) internal successors, (1546), 834 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:14,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1546 transitions. [2024-11-13 14:28:14,613 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1546 transitions. Word has length 24 [2024-11-13 14:28:14,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:14,614 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1546 transitions. [2024-11-13 14:28:14,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:14,614 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1546 transitions. [2024-11-13 14:28:14,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 14:28:14,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:14,616 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:14,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:28:14,616 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:14,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:14,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1467363697, now seen corresponding path program 1 times [2024-11-13 14:28:14,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:14,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862074198] [2024-11-13 14:28:14,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:14,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:14,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:14,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:14,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862074198] [2024-11-13 14:28:14,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862074198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:14,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:14,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:28:14,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071211573] [2024-11-13 14:28:14,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:14,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:28:14,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:14,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:28:14,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:28:14,953 INFO L87 Difference]: Start difference. First operand 835 states and 1546 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:15,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:15,353 INFO L93 Difference]: Finished difference Result 1275 states and 2246 transitions. [2024-11-13 14:28:15,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:28:15,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-13 14:28:15,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:15,361 INFO L225 Difference]: With dead ends: 1275 [2024-11-13 14:28:15,362 INFO L226 Difference]: Without dead ends: 1231 [2024-11-13 14:28:15,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:28:15,366 INFO L432 NwaCegarLoop]: 1540 mSDtfsCounter, 8036 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8036 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:15,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8036 Valid, 2538 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:28:15,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-11-13 14:28:15,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 877. [2024-11-13 14:28:15,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 875 states have (on average 1.8434285714285714) internal successors, (1613), 876 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:15,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1613 transitions. [2024-11-13 14:28:15,414 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1613 transitions. Word has length 54 [2024-11-13 14:28:15,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:15,417 INFO L471 AbstractCegarLoop]: Abstraction has 877 states and 1613 transitions. [2024-11-13 14:28:15,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:15,417 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1613 transitions. [2024-11-13 14:28:15,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 14:28:15,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:15,422 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:15,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:28:15,422 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:15,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:15,423 INFO L85 PathProgramCache]: Analyzing trace with hash -28456863, now seen corresponding path program 1 times [2024-11-13 14:28:15,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:15,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573144590] [2024-11-13 14:28:15,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:15,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:15,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:15,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:15,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573144590] [2024-11-13 14:28:15,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573144590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:15,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:15,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:28:15,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583218680] [2024-11-13 14:28:15,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:15,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:28:15,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:15,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:28:15,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:28:15,631 INFO L87 Difference]: Start difference. First operand 877 states and 1613 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:15,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:15,689 INFO L93 Difference]: Finished difference Result 1038 states and 1868 transitions. [2024-11-13 14:28:15,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:28:15,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-13 14:28:15,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:15,696 INFO L225 Difference]: With dead ends: 1038 [2024-11-13 14:28:15,696 INFO L226 Difference]: Without dead ends: 952 [2024-11-13 14:28:15,696 INFO L431 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 [2024-11-13 14:28:15,697 INFO L432 NwaCegarLoop]: 1542 mSDtfsCounter, 1484 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:15,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1605 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:15,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-11-13 14:28:15,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 948. [2024-11-13 14:28:15,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8213530655391121) internal successors, (1723), 947 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:15,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1723 transitions. [2024-11-13 14:28:15,753 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1723 transitions. Word has length 56 [2024-11-13 14:28:15,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:15,755 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1723 transitions. [2024-11-13 14:28:15,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:15,756 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1723 transitions. [2024-11-13 14:28:15,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 14:28:15,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:15,761 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:15,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:28:15,761 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:15,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:15,762 INFO L85 PathProgramCache]: Analyzing trace with hash 38036649, now seen corresponding path program 1 times [2024-11-13 14:28:15,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:15,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783264297] [2024-11-13 14:28:15,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:15,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:16,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:16,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783264297] [2024-11-13 14:28:16,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783264297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:16,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:16,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:28:16,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45652863] [2024-11-13 14:28:16,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:16,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:28:16,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:16,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:28:16,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:28:16,294 INFO L87 Difference]: Start difference. First operand 948 states and 1723 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:16,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:16,576 INFO L93 Difference]: Finished difference Result 1107 states and 1971 transitions. [2024-11-13 14:28:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:28:16,577 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-13 14:28:16,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:16,582 INFO L225 Difference]: With dead ends: 1107 [2024-11-13 14:28:16,582 INFO L226 Difference]: Without dead ends: 950 [2024-11-13 14:28:16,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:28:16,584 INFO L432 NwaCegarLoop]: 1539 mSDtfsCounter, 3000 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:16,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3000 Valid, 1813 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:28:16,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2024-11-13 14:28:16,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 948. [2024-11-13 14:28:16,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8192389006342495) internal successors, (1721), 947 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:16,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1721 transitions. [2024-11-13 14:28:16,620 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1721 transitions. Word has length 56 [2024-11-13 14:28:16,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:16,620 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1721 transitions. [2024-11-13 14:28:16,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:16,621 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1721 transitions. [2024-11-13 14:28:16,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 14:28:16,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:16,625 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:16,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:28:16,625 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:16,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:16,626 INFO L85 PathProgramCache]: Analyzing trace with hash 764413046, now seen corresponding path program 1 times [2024-11-13 14:28:16,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:16,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995107585] [2024-11-13 14:28:16,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:16,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:17,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:17,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:17,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995107585] [2024-11-13 14:28:17,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995107585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:17,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:17,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 14:28:17,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208862974] [2024-11-13 14:28:17,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:17,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:28:17,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:17,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:28:17,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:28:17,080 INFO L87 Difference]: Start difference. First operand 948 states and 1721 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:17,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:17,180 INFO L93 Difference]: Finished difference Result 956 states and 1730 transitions. [2024-11-13 14:28:17,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:28:17,182 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-13 14:28:17,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:17,186 INFO L225 Difference]: With dead ends: 956 [2024-11-13 14:28:17,186 INFO L226 Difference]: Without dead ends: 954 [2024-11-13 14:28:17,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:28:17,187 INFO L432 NwaCegarLoop]: 1540 mSDtfsCounter, 0 mSDsluCounter, 9227 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10767 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:17,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10767 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:17,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2024-11-13 14:28:17,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2024-11-13 14:28:17,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 952 states have (on average 1.8130252100840336) internal successors, (1726), 953 states have internal predecessors, (1726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:17,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1726 transitions. [2024-11-13 14:28:17,219 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1726 transitions. Word has length 57 [2024-11-13 14:28:17,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:17,220 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1726 transitions. [2024-11-13 14:28:17,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:17,220 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1726 transitions. [2024-11-13 14:28:17,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 14:28:17,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:17,221 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:17,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:28:17,222 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:17,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:17,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1435696343, now seen corresponding path program 1 times [2024-11-13 14:28:17,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:17,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879388577] [2024-11-13 14:28:17,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:17,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:17,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:17,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:17,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879388577] [2024-11-13 14:28:17,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879388577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:17,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:17,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:28:17,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810809877] [2024-11-13 14:28:17,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:17,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:28:17,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:17,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:28:17,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:28:17,331 INFO L87 Difference]: Start difference. First operand 954 states and 1726 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:17,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:17,374 INFO L93 Difference]: Finished difference Result 1264 states and 2198 transitions. [2024-11-13 14:28:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:28:17,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-13 14:28:17,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:17,381 INFO L225 Difference]: With dead ends: 1264 [2024-11-13 14:28:17,382 INFO L226 Difference]: Without dead ends: 1101 [2024-11-13 14:28:17,383 INFO L431 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 [2024-11-13 14:28:17,384 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 1497 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:17,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1668 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:17,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2024-11-13 14:28:17,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1099. [2024-11-13 14:28:17,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1097 states have (on average 1.7711941659070192) internal successors, (1943), 1098 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:17,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1943 transitions. [2024-11-13 14:28:17,420 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1943 transitions. Word has length 58 [2024-11-13 14:28:17,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:17,421 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1943 transitions. [2024-11-13 14:28:17,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:17,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1943 transitions. [2024-11-13 14:28:17,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 14:28:17,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:17,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:17,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:28:17,423 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:17,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:17,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1882064169, now seen corresponding path program 1 times [2024-11-13 14:28:17,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:17,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414807054] [2024-11-13 14:28:17,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:17,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:17,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:17,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:17,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414807054] [2024-11-13 14:28:17,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414807054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:17,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:17,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:28:17,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999587022] [2024-11-13 14:28:17,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:17,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:28:17,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:17,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:28:17,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:28:17,519 INFO L87 Difference]: Start difference. First operand 1099 states and 1943 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:17,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:17,560 INFO L93 Difference]: Finished difference Result 1683 states and 2821 transitions. [2024-11-13 14:28:17,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:28:17,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-13 14:28:17,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:17,567 INFO L225 Difference]: With dead ends: 1683 [2024-11-13 14:28:17,567 INFO L226 Difference]: Without dead ends: 1375 [2024-11-13 14:28:17,568 INFO L431 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 [2024-11-13 14:28:17,568 INFO L432 NwaCegarLoop]: 1581 mSDtfsCounter, 1493 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:17,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1664 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:17,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2024-11-13 14:28:17,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1373. [2024-11-13 14:28:17,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 1371 states have (on average 1.7104303428154632) internal successors, (2345), 1372 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:17,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 2345 transitions. [2024-11-13 14:28:17,613 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 2345 transitions. Word has length 58 [2024-11-13 14:28:17,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:17,613 INFO L471 AbstractCegarLoop]: Abstraction has 1373 states and 2345 transitions. [2024-11-13 14:28:17,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:17,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 2345 transitions. [2024-11-13 14:28:17,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 14:28:17,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:17,615 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:17,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:28:17,615 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:17,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:17,616 INFO L85 PathProgramCache]: Analyzing trace with hash -631970263, now seen corresponding path program 1 times [2024-11-13 14:28:17,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:17,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669955096] [2024-11-13 14:28:17,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:17,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:17,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:17,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:17,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669955096] [2024-11-13 14:28:17,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669955096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:17,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:17,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:28:17,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378916364] [2024-11-13 14:28:17,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:17,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:28:17,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:17,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:28:17,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:28:17,689 INFO L87 Difference]: Start difference. First operand 1373 states and 2345 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:17,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:17,742 INFO L93 Difference]: Finished difference Result 2473 states and 3971 transitions. [2024-11-13 14:28:17,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:28:17,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-13 14:28:17,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:17,750 INFO L225 Difference]: With dead ends: 2473 [2024-11-13 14:28:17,750 INFO L226 Difference]: Without dead ends: 1891 [2024-11-13 14:28:17,752 INFO L431 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 [2024-11-13 14:28:17,752 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 1491 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:17,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1666 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:17,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2024-11-13 14:28:17,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1889. [2024-11-13 14:28:17,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1887 states have (on average 1.634870164281929) internal successors, (3085), 1888 states have internal predecessors, (3085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:17,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 3085 transitions. [2024-11-13 14:28:17,819 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 3085 transitions. Word has length 58 [2024-11-13 14:28:17,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:17,819 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 3085 transitions. [2024-11-13 14:28:17,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:17,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 3085 transitions. [2024-11-13 14:28:17,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 14:28:17,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:17,820 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:17,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:28:17,821 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:17,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:17,821 INFO L85 PathProgramCache]: Analyzing trace with hash -197434327, now seen corresponding path program 1 times [2024-11-13 14:28:17,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:17,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394045461] [2024-11-13 14:28:17,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:17,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:17,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:17,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394045461] [2024-11-13 14:28:17,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394045461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:17,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:17,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:28:17,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45322326] [2024-11-13 14:28:17,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:17,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:28:17,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:17,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:28:17,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:28:17,897 INFO L87 Difference]: Start difference. First operand 1889 states and 3085 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:17,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:17,975 INFO L93 Difference]: Finished difference Result 3957 states and 6079 transitions. [2024-11-13 14:28:17,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:28:17,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-13 14:28:17,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:17,987 INFO L225 Difference]: With dead ends: 3957 [2024-11-13 14:28:17,987 INFO L226 Difference]: Without dead ends: 2859 [2024-11-13 14:28:17,989 INFO L431 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 [2024-11-13 14:28:17,990 INFO L432 NwaCegarLoop]: 1591 mSDtfsCounter, 1495 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:17,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1670 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:17,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2024-11-13 14:28:18,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 2857. [2024-11-13 14:28:18,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2857 states, 2855 states have (on average 1.5541155866900176) internal successors, (4437), 2856 states have internal predecessors, (4437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:18,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 4437 transitions. [2024-11-13 14:28:18,092 INFO L78 Accepts]: Start accepts. Automaton has 2857 states and 4437 transitions. Word has length 58 [2024-11-13 14:28:18,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:18,093 INFO L471 AbstractCegarLoop]: Abstraction has 2857 states and 4437 transitions. [2024-11-13 14:28:18,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:18,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2857 states and 4437 transitions. [2024-11-13 14:28:18,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 14:28:18,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:18,094 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:18,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 14:28:18,094 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:18,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:18,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1541290492, now seen corresponding path program 1 times [2024-11-13 14:28:18,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:18,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161925093] [2024-11-13 14:28:18,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:18,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:18,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:18,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:18,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161925093] [2024-11-13 14:28:18,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161925093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:18,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:18,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:28:18,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217576619] [2024-11-13 14:28:18,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:18,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:28:18,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:18,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:28:18,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:28:18,178 INFO L87 Difference]: Start difference. First operand 2857 states and 4437 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:18,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:18,266 INFO L93 Difference]: Finished difference Result 5040 states and 7611 transitions. [2024-11-13 14:28:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:28:18,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-13 14:28:18,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:18,282 INFO L225 Difference]: With dead ends: 5040 [2024-11-13 14:28:18,282 INFO L226 Difference]: Without dead ends: 3853 [2024-11-13 14:28:18,284 INFO L431 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 [2024-11-13 14:28:18,285 INFO L432 NwaCegarLoop]: 1598 mSDtfsCounter, 1496 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:18,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:18,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2024-11-13 14:28:18,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 3851. [2024-11-13 14:28:18,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3849 states have (on average 1.5149389451805664) internal successors, (5831), 3850 states have internal predecessors, (5831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:18,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 5831 transitions. [2024-11-13 14:28:18,478 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 5831 transitions. Word has length 60 [2024-11-13 14:28:18,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:18,479 INFO L471 AbstractCegarLoop]: Abstraction has 3851 states and 5831 transitions. [2024-11-13 14:28:18,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:18,479 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 5831 transitions. [2024-11-13 14:28:18,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 14:28:18,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:18,480 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:18,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 14:28:18,480 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:18,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:18,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1587184224, now seen corresponding path program 1 times [2024-11-13 14:28:18,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:18,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685994385] [2024-11-13 14:28:18,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:18,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:18,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:18,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:18,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685994385] [2024-11-13 14:28:18,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685994385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:18,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:18,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:28:18,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315359852] [2024-11-13 14:28:18,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:18,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:28:18,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:18,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:28:18,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:28:18,694 INFO L87 Difference]: Start difference. First operand 3851 states and 5831 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:27,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:27,389 INFO L93 Difference]: Finished difference Result 6106 states and 10140 transitions. [2024-11-13 14:28:27,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:28:27,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-13 14:28:27,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:27,407 INFO L225 Difference]: With dead ends: 6106 [2024-11-13 14:28:27,407 INFO L226 Difference]: Without dead ends: 5353 [2024-11-13 14:28:27,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:28:27,409 INFO L432 NwaCegarLoop]: 782 mSDtfsCounter, 2393 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:27,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2393 Valid, 800 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2024-11-13 14:28:27,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2024-11-13 14:28:27,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 5353. [2024-11-13 14:28:27,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5353 states, 5351 states have (on average 1.4847692020183143) internal successors, (7945), 5352 states have internal predecessors, (7945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:27,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5353 states to 5353 states and 7945 transitions. [2024-11-13 14:28:27,570 INFO L78 Accepts]: Start accepts. Automaton has 5353 states and 7945 transitions. Word has length 67 [2024-11-13 14:28:27,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:27,570 INFO L471 AbstractCegarLoop]: Abstraction has 5353 states and 7945 transitions. [2024-11-13 14:28:27,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:27,570 INFO L276 IsEmpty]: Start isEmpty. Operand 5353 states and 7945 transitions. [2024-11-13 14:28:27,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 14:28:27,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:27,573 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:27,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 14:28:27,573 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:27,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:27,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1016968728, now seen corresponding path program 1 times [2024-11-13 14:28:27,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:27,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742863371] [2024-11-13 14:28:27,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:27,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:27,784 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:28:27,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:27,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742863371] [2024-11-13 14:28:27,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742863371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:27,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:27,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:28:27,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737492693] [2024-11-13 14:28:27,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:27,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:28:27,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:27,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:28:27,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:28:27,786 INFO L87 Difference]: Start difference. First operand 5353 states and 7945 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:28,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:28,330 INFO L93 Difference]: Finished difference Result 21301 states and 30607 transitions. [2024-11-13 14:28:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:28:28,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-13 14:28:28,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:28,408 INFO L225 Difference]: With dead ends: 21301 [2024-11-13 14:28:28,408 INFO L226 Difference]: Without dead ends: 18243 [2024-11-13 14:28:28,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:28:28,418 INFO L432 NwaCegarLoop]: 1610 mSDtfsCounter, 6383 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6383 SdHoareTripleChecker+Valid, 3545 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:28,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6383 Valid, 3545 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:28:28,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18243 states. [2024-11-13 14:28:28,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18243 to 8409. [2024-11-13 14:28:28,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8409 states, 8407 states have (on average 1.4570001189484953) internal successors, (12249), 8408 states have internal predecessors, (12249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:28,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8409 states to 8409 states and 12249 transitions. [2024-11-13 14:28:28,831 INFO L78 Accepts]: Start accepts. Automaton has 8409 states and 12249 transitions. Word has length 77 [2024-11-13 14:28:28,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:28,832 INFO L471 AbstractCegarLoop]: Abstraction has 8409 states and 12249 transitions. [2024-11-13 14:28:28,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:28,833 INFO L276 IsEmpty]: Start isEmpty. Operand 8409 states and 12249 transitions. [2024-11-13 14:28:28,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 14:28:28,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:28,835 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:28,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 14:28:28,836 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:28,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:28,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1994175512, now seen corresponding path program 1 times [2024-11-13 14:28:28,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:28,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561288417] [2024-11-13 14:28:28,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:28,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:29,057 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:28:29,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:29,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561288417] [2024-11-13 14:28:29,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561288417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:29,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:29,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:28:29,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183645839] [2024-11-13 14:28:29,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:29,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:28:29,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:29,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:28:29,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:28:29,060 INFO L87 Difference]: Start difference. First operand 8409 states and 12249 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:29,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:29,744 INFO L93 Difference]: Finished difference Result 24357 states and 34911 transitions. [2024-11-13 14:28:29,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:28:29,745 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-13 14:28:29,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:29,798 INFO L225 Difference]: With dead ends: 24357 [2024-11-13 14:28:29,798 INFO L226 Difference]: Without dead ends: 21299 [2024-11-13 14:28:29,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:28:29,808 INFO L432 NwaCegarLoop]: 1607 mSDtfsCounter, 6427 mSDsluCounter, 1937 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6427 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:29,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6427 Valid, 3544 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:28:29,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21299 states. [2024-11-13 14:28:30,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21299 to 13001. [2024-11-13 14:28:30,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13001 states, 12999 states have (on average 1.4358796830525424) internal successors, (18665), 13000 states have internal predecessors, (18665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:30,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13001 states to 13001 states and 18665 transitions. [2024-11-13 14:28:30,298 INFO L78 Accepts]: Start accepts. Automaton has 13001 states and 18665 transitions. Word has length 77 [2024-11-13 14:28:30,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:30,299 INFO L471 AbstractCegarLoop]: Abstraction has 13001 states and 18665 transitions. [2024-11-13 14:28:30,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:30,299 INFO L276 IsEmpty]: Start isEmpty. Operand 13001 states and 18665 transitions. [2024-11-13 14:28:30,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 14:28:30,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:30,301 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:30,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 14:28:30,302 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:30,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:30,302 INFO L85 PathProgramCache]: Analyzing trace with hash -213242648, now seen corresponding path program 1 times [2024-11-13 14:28:30,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:30,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449333576] [2024-11-13 14:28:30,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:30,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:30,630 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 14:28:30,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:30,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449333576] [2024-11-13 14:28:30,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449333576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:30,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:30,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:28:30,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117773097] [2024-11-13 14:28:30,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:30,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:28:30,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:30,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:28:30,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:28:30,633 INFO L87 Difference]: Start difference. First operand 13001 states and 18665 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:31,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:31,389 INFO L93 Difference]: Finished difference Result 27413 states and 39215 transitions. [2024-11-13 14:28:31,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:28:31,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-13 14:28:31,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:31,449 INFO L225 Difference]: With dead ends: 27413 [2024-11-13 14:28:31,449 INFO L226 Difference]: Without dead ends: 24355 [2024-11-13 14:28:31,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:28:31,461 INFO L432 NwaCegarLoop]: 1608 mSDtfsCounter, 6384 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6384 SdHoareTripleChecker+Valid, 3561 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:31,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6384 Valid, 3561 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:28:31,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24355 states. [2024-11-13 14:28:31,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24355 to 16057. [2024-11-13 14:28:31,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16057 states, 16055 states have (on average 1.43064465898474) internal successors, (22969), 16056 states have internal predecessors, (22969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:32,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16057 states to 16057 states and 22969 transitions. [2024-11-13 14:28:32,004 INFO L78 Accepts]: Start accepts. Automaton has 16057 states and 22969 transitions. Word has length 77 [2024-11-13 14:28:32,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:32,005 INFO L471 AbstractCegarLoop]: Abstraction has 16057 states and 22969 transitions. [2024-11-13 14:28:32,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:32,005 INFO L276 IsEmpty]: Start isEmpty. Operand 16057 states and 22969 transitions. [2024-11-13 14:28:32,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 14:28:32,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:32,008 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:32,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 14:28:32,008 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:32,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:32,009 INFO L85 PathProgramCache]: Analyzing trace with hash 221293288, now seen corresponding path program 1 times [2024-11-13 14:28:32,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:32,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998740488] [2024-11-13 14:28:32,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:32,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:32,208 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 14:28:32,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:32,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998740488] [2024-11-13 14:28:32,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998740488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:32,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:32,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:28:32,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689382333] [2024-11-13 14:28:32,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:32,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:28:32,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:32,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:28:32,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:28:32,211 INFO L87 Difference]: Start difference. First operand 16057 states and 22969 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:32,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:32,864 INFO L93 Difference]: Finished difference Result 30469 states and 43519 transitions. [2024-11-13 14:28:32,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:28:32,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-13 14:28:32,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:32,931 INFO L225 Difference]: With dead ends: 30469 [2024-11-13 14:28:32,931 INFO L226 Difference]: Without dead ends: 27411 [2024-11-13 14:28:32,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:28:32,939 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 6335 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6335 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:32,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6335 Valid, 3626 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:28:32,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27411 states. [2024-11-13 14:28:33,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27411 to 19113. [2024-11-13 14:28:33,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19113 states, 19111 states have (on average 1.4270838783946418) internal successors, (27273), 19112 states have internal predecessors, (27273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:33,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19113 states to 19113 states and 27273 transitions. [2024-11-13 14:28:33,513 INFO L78 Accepts]: Start accepts. Automaton has 19113 states and 27273 transitions. Word has length 77 [2024-11-13 14:28:33,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:33,513 INFO L471 AbstractCegarLoop]: Abstraction has 19113 states and 27273 transitions. [2024-11-13 14:28:33,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:33,514 INFO L276 IsEmpty]: Start isEmpty. Operand 19113 states and 27273 transitions. [2024-11-13 14:28:33,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-13 14:28:33,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:33,517 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:33,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 14:28:33,518 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:33,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:33,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1423988995, now seen corresponding path program 1 times [2024-11-13 14:28:33,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:33,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700416019] [2024-11-13 14:28:33,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:33,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:33,733 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 14:28:33,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:33,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700416019] [2024-11-13 14:28:33,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700416019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:33,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:33,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:28:33,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183089824] [2024-11-13 14:28:33,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:33,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:28:33,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:33,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:28:33,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:28:33,735 INFO L87 Difference]: Start difference. First operand 19113 states and 27273 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:34,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:34,609 INFO L93 Difference]: Finished difference Result 31765 states and 45391 transitions. [2024-11-13 14:28:34,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:28:34,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-13 14:28:34,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:34,660 INFO L225 Difference]: With dead ends: 31765 [2024-11-13 14:28:34,660 INFO L226 Difference]: Without dead ends: 29587 [2024-11-13 14:28:34,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:28:34,672 INFO L432 NwaCegarLoop]: 1612 mSDtfsCounter, 6375 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6375 SdHoareTripleChecker+Valid, 3664 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:34,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6375 Valid, 3664 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:28:34,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29587 states. [2024-11-13 14:28:35,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29587 to 21289. [2024-11-13 14:28:35,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21289 states, 21287 states have (on average 1.427021186639733) internal successors, (30377), 21288 states have internal predecessors, (30377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:35,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21289 states to 21289 states and 30377 transitions. [2024-11-13 14:28:35,805 INFO L78 Accepts]: Start accepts. Automaton has 21289 states and 30377 transitions. Word has length 79 [2024-11-13 14:28:35,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:35,806 INFO L471 AbstractCegarLoop]: Abstraction has 21289 states and 30377 transitions. [2024-11-13 14:28:35,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:35,806 INFO L276 IsEmpty]: Start isEmpty. Operand 21289 states and 30377 transitions. [2024-11-13 14:28:35,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-13 14:28:35,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:35,813 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:35,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 14:28:35,813 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:35,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:35,814 INFO L85 PathProgramCache]: Analyzing trace with hash 596392800, now seen corresponding path program 1 times [2024-11-13 14:28:35,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:35,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740579097] [2024-11-13 14:28:35,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:35,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:35,977 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:35,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:35,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740579097] [2024-11-13 14:28:35,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740579097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:35,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:35,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:28:35,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39923079] [2024-11-13 14:28:35,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:35,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:28:35,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:35,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:28:35,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:28:35,980 INFO L87 Difference]: Start difference. First operand 21289 states and 30377 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:36,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:36,584 INFO L93 Difference]: Finished difference Result 35457 states and 50576 transitions. [2024-11-13 14:28:36,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:28:36,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-13 14:28:36,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:36,625 INFO L225 Difference]: With dead ends: 35457 [2024-11-13 14:28:36,625 INFO L226 Difference]: Without dead ends: 16463 [2024-11-13 14:28:36,643 INFO L431 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 [2024-11-13 14:28:36,644 INFO L432 NwaCegarLoop]: 1586 mSDtfsCounter, 50 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:36,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3117 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:36,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16463 states. [2024-11-13 14:28:37,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16463 to 16461. [2024-11-13 14:28:37,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16461 states, 16459 states have (on average 1.432711586366122) internal successors, (23581), 16460 states have internal predecessors, (23581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:37,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16461 states to 16461 states and 23581 transitions. [2024-11-13 14:28:37,282 INFO L78 Accepts]: Start accepts. Automaton has 16461 states and 23581 transitions. Word has length 79 [2024-11-13 14:28:37,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:37,283 INFO L471 AbstractCegarLoop]: Abstraction has 16461 states and 23581 transitions. [2024-11-13 14:28:37,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:37,283 INFO L276 IsEmpty]: Start isEmpty. Operand 16461 states and 23581 transitions. [2024-11-13 14:28:37,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-13 14:28:37,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:37,286 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:37,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 14:28:37,286 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:37,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:37,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2085595315, now seen corresponding path program 1 times [2024-11-13 14:28:37,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:37,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957334743] [2024-11-13 14:28:37,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:37,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:37,428 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:37,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:37,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957334743] [2024-11-13 14:28:37,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957334743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:37,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:37,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:28:37,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101083411] [2024-11-13 14:28:37,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:37,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:28:37,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:37,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:28:37,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:28:37,431 INFO L87 Difference]: Start difference. First operand 16461 states and 23581 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:37,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:37,665 INFO L93 Difference]: Finished difference Result 23537 states and 33567 transitions. [2024-11-13 14:28:37,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:28:37,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-13 14:28:37,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:37,683 INFO L225 Difference]: With dead ends: 23537 [2024-11-13 14:28:37,684 INFO L226 Difference]: Without dead ends: 9391 [2024-11-13 14:28:37,695 INFO L431 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 [2024-11-13 14:28:37,696 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:37,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3102 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:37,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9391 states. [2024-11-13 14:28:37,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9391 to 9389. [2024-11-13 14:28:37,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9389 states, 9387 states have (on average 1.4374134441248536) internal successors, (13493), 9388 states have internal predecessors, (13493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:37,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9389 states to 9389 states and 13493 transitions. [2024-11-13 14:28:37,981 INFO L78 Accepts]: Start accepts. Automaton has 9389 states and 13493 transitions. Word has length 80 [2024-11-13 14:28:37,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:37,982 INFO L471 AbstractCegarLoop]: Abstraction has 9389 states and 13493 transitions. [2024-11-13 14:28:37,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:37,982 INFO L276 IsEmpty]: Start isEmpty. Operand 9389 states and 13493 transitions. [2024-11-13 14:28:37,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-13 14:28:37,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:37,984 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:37,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 14:28:37,985 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:37,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:37,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1529849601, now seen corresponding path program 1 times [2024-11-13 14:28:37,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:37,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508339187] [2024-11-13 14:28:37,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:37,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,121 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:38,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:38,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508339187] [2024-11-13 14:28:38,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508339187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:38,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:38,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:28:38,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671801073] [2024-11-13 14:28:38,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:38,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:28:38,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:38,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:28:38,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:28:38,123 INFO L87 Difference]: Start difference. First operand 9389 states and 13493 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:38,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:38,264 INFO L93 Difference]: Finished difference Result 12929 states and 18435 transitions. [2024-11-13 14:28:38,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:28:38,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-13 14:28:38,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:38,277 INFO L225 Difference]: With dead ends: 12929 [2024-11-13 14:28:38,277 INFO L226 Difference]: Without dead ends: 5855 [2024-11-13 14:28:38,284 INFO L431 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 [2024-11-13 14:28:38,285 INFO L432 NwaCegarLoop]: 1572 mSDtfsCounter, 42 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:38,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:38,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5855 states. [2024-11-13 14:28:38,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5855 to 5853. [2024-11-13 14:28:38,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5853 states, 5851 states have (on average 1.4529140317894378) internal successors, (8501), 5852 states have internal predecessors, (8501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:38,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5853 states to 5853 states and 8501 transitions. [2024-11-13 14:28:38,499 INFO L78 Accepts]: Start accepts. Automaton has 5853 states and 8501 transitions. Word has length 82 [2024-11-13 14:28:38,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:38,500 INFO L471 AbstractCegarLoop]: Abstraction has 5853 states and 8501 transitions. [2024-11-13 14:28:38,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:38,500 INFO L276 IsEmpty]: Start isEmpty. Operand 5853 states and 8501 transitions. [2024-11-13 14:28:38,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-13 14:28:38,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:38,502 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:38,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 14:28:38,502 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:38,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:38,503 INFO L85 PathProgramCache]: Analyzing trace with hash -2111983311, now seen corresponding path program 1 times [2024-11-13 14:28:38,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:38,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444529272] [2024-11-13 14:28:38,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:38,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,632 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:38,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:38,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444529272] [2024-11-13 14:28:38,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444529272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:38,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:38,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:28:38,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044207977] [2024-11-13 14:28:38,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:38,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:28:38,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:38,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:28:38,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:28:38,636 INFO L87 Difference]: Start difference. First operand 5853 states and 8501 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:38,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:38,725 INFO L93 Difference]: Finished difference Result 7625 states and 10947 transitions. [2024-11-13 14:28:38,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:28:38,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-13 14:28:38,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:38,732 INFO L225 Difference]: With dead ends: 7625 [2024-11-13 14:28:38,733 INFO L226 Difference]: Without dead ends: 4087 [2024-11-13 14:28:38,739 INFO L431 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 [2024-11-13 14:28:38,740 INFO L432 NwaCegarLoop]: 1565 mSDtfsCounter, 39 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:38,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:38,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4087 states. [2024-11-13 14:28:38,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4087 to 4085. [2024-11-13 14:28:38,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4085 states, 4083 states have (on average 1.4771001714425667) internal successors, (6031), 4084 states have internal predecessors, (6031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4085 states to 4085 states and 6031 transitions. [2024-11-13 14:28:38,847 INFO L78 Accepts]: Start accepts. Automaton has 4085 states and 6031 transitions. Word has length 84 [2024-11-13 14:28:38,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:38,847 INFO L471 AbstractCegarLoop]: Abstraction has 4085 states and 6031 transitions. [2024-11-13 14:28:38,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:38,848 INFO L276 IsEmpty]: Start isEmpty. Operand 4085 states and 6031 transitions. [2024-11-13 14:28:38,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 14:28:38,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:38,849 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:38,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 14:28:38,849 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:38,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:38,850 INFO L85 PathProgramCache]: Analyzing trace with hash 153059299, now seen corresponding path program 1 times [2024-11-13 14:28:38,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:38,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292164389] [2024-11-13 14:28:38,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:38,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,975 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:38,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:38,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292164389] [2024-11-13 14:28:38,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292164389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:38,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:38,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:28:38,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749486398] [2024-11-13 14:28:38,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:38,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:28:38,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:38,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:28:38,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:28:38,978 INFO L87 Difference]: Start difference. First operand 4085 states and 6031 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:39,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:39,043 INFO L93 Difference]: Finished difference Result 4973 states and 7242 transitions. [2024-11-13 14:28:39,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:28:39,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-13 14:28:39,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:39,053 INFO L225 Difference]: With dead ends: 4973 [2024-11-13 14:28:39,053 INFO L226 Difference]: Without dead ends: 3203 [2024-11-13 14:28:39,055 INFO L431 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 [2024-11-13 14:28:39,057 INFO L432 NwaCegarLoop]: 1558 mSDtfsCounter, 36 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:39,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:39,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2024-11-13 14:28:39,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 3201. [2024-11-13 14:28:39,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3199 states have (on average 1.5032822757111597) internal successors, (4809), 3200 states have internal predecessors, (4809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:39,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 4809 transitions. [2024-11-13 14:28:39,134 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 4809 transitions. Word has length 86 [2024-11-13 14:28:39,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:39,134 INFO L471 AbstractCegarLoop]: Abstraction has 3201 states and 4809 transitions. [2024-11-13 14:28:39,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:39,135 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 4809 transitions. [2024-11-13 14:28:39,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-13 14:28:39,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:39,137 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:39,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 14:28:39,138 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:39,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:39,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1673848085, now seen corresponding path program 1 times [2024-11-13 14:28:39,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:39,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077657807] [2024-11-13 14:28:39,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:39,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:40,380 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:40,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:40,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077657807] [2024-11-13 14:28:40,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077657807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:40,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621343060] [2024-11-13 14:28:40,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:40,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:40,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:40,385 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:40,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:28:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:40,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:28:40,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:41,358 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:41,360 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:28:43,086 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:43,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621343060] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:28:43,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:28:43,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-13 14:28:43,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571561784] [2024-11-13 14:28:43,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:28:43,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-13 14:28:43,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:43,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-13 14:28:43,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2024-11-13 14:28:43,090 INFO L87 Difference]: Start difference. First operand 3201 states and 4809 transitions. Second operand has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:45,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:45,357 INFO L93 Difference]: Finished difference Result 6959 states and 9873 transitions. [2024-11-13 14:28:45,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 14:28:45,358 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-13 14:28:45,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:45,366 INFO L225 Difference]: With dead ends: 6959 [2024-11-13 14:28:45,366 INFO L226 Difference]: Without dead ends: 6073 [2024-11-13 14:28:45,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=657, Invalid=2423, Unknown=0, NotChecked=0, Total=3080 [2024-11-13 14:28:45,370 INFO L432 NwaCegarLoop]: 1502 mSDtfsCounter, 16218 mSDsluCounter, 6554 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16218 SdHoareTripleChecker+Valid, 8056 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:45,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16218 Valid, 8056 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 14:28:45,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6073 states. [2024-11-13 14:28:45,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6073 to 6035. [2024-11-13 14:28:45,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6035 states, 6033 states have (on average 1.424167081054202) internal successors, (8592), 6034 states have internal predecessors, (8592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:45,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6035 states to 6035 states and 8592 transitions. [2024-11-13 14:28:45,555 INFO L78 Accepts]: Start accepts. Automaton has 6035 states and 8592 transitions. Word has length 88 [2024-11-13 14:28:45,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:45,555 INFO L471 AbstractCegarLoop]: Abstraction has 6035 states and 8592 transitions. [2024-11-13 14:28:45,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:45,556 INFO L276 IsEmpty]: Start isEmpty. Operand 6035 states and 8592 transitions. [2024-11-13 14:28:45,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-13 14:28:45,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:45,558 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:45,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:28:45,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:45,759 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:45,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:45,759 INFO L85 PathProgramCache]: Analyzing trace with hash -333690493, now seen corresponding path program 1 times [2024-11-13 14:28:45,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:45,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196156941] [2024-11-13 14:28:45,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:45,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,243 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:46,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:46,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196156941] [2024-11-13 14:28:46,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196156941] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:46,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464908537] [2024-11-13 14:28:46,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:46,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:46,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:46,246 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:46,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:28:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:28:46,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:46,685 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 14:28:46,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:28:46,945 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 14:28:46,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464908537] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:28:46,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:28:46,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 4] total 16 [2024-11-13 14:28:46,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185781559] [2024-11-13 14:28:46,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:28:46,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 14:28:46,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:46,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 14:28:46,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:28:46,948 INFO L87 Difference]: Start difference. First operand 6035 states and 8592 transitions. Second operand has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:49,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:49,245 INFO L93 Difference]: Finished difference Result 29109 states and 39053 transitions. [2024-11-13 14:28:49,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-13 14:28:49,245 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-13 14:28:49,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:49,265 INFO L225 Difference]: With dead ends: 29109 [2024-11-13 14:28:49,265 INFO L226 Difference]: Without dead ends: 25389 [2024-11-13 14:28:49,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=578, Invalid=2178, Unknown=0, NotChecked=0, Total=2756 [2024-11-13 14:28:49,272 INFO L432 NwaCegarLoop]: 1546 mSDtfsCounter, 13389 mSDsluCounter, 7875 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13389 SdHoareTripleChecker+Valid, 9421 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:49,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13389 Valid, 9421 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:28:49,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25389 states. [2024-11-13 14:28:50,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25389 to 25263. [2024-11-13 14:28:50,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25263 states, 25261 states have (on average 1.285855666838209) internal successors, (32482), 25262 states have internal predecessors, (32482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:50,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25263 states to 25263 states and 32482 transitions. [2024-11-13 14:28:50,096 INFO L78 Accepts]: Start accepts. Automaton has 25263 states and 32482 transitions. Word has length 89 [2024-11-13 14:28:50,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:50,097 INFO L471 AbstractCegarLoop]: Abstraction has 25263 states and 32482 transitions. [2024-11-13 14:28:50,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:50,097 INFO L276 IsEmpty]: Start isEmpty. Operand 25263 states and 32482 transitions. [2024-11-13 14:28:50,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-13 14:28:50,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:50,099 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:50,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:28:50,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-13 14:28:50,300 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:50,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:50,300 INFO L85 PathProgramCache]: Analyzing trace with hash 203062885, now seen corresponding path program 1 times [2024-11-13 14:28:50,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:50,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135012139] [2024-11-13 14:28:50,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:50,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:51,075 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:51,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:51,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135012139] [2024-11-13 14:28:51,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135012139] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:51,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8303972] [2024-11-13 14:28:51,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:51,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:51,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:51,079 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:51,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:28:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:51,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:28:51,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:52,192 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:52,196 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:28:53,227 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:53,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8303972] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:28:53,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:28:53,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-13 14:28:53,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292846400] [2024-11-13 14:28:53,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:28:53,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 14:28:53,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:53,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 14:28:53,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:28:53,229 INFO L87 Difference]: Start difference. First operand 25263 states and 32482 transitions. Second operand has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:55,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:55,439 INFO L93 Difference]: Finished difference Result 70765 states and 90138 transitions. [2024-11-13 14:28:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:28:55,440 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-13 14:28:55,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:55,490 INFO L225 Difference]: With dead ends: 70765 [2024-11-13 14:28:55,490 INFO L226 Difference]: Without dead ends: 48978 [2024-11-13 14:28:55,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2024-11-13 14:28:55,505 INFO L432 NwaCegarLoop]: 1518 mSDtfsCounter, 15049 mSDsluCounter, 4675 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15049 SdHoareTripleChecker+Valid, 6193 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:55,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15049 Valid, 6193 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:28:55,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48978 states. [2024-11-13 14:28:57,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48978 to 48382. [2024-11-13 14:28:57,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48382 states, 48380 states have (on average 1.2595494005787515) internal successors, (60937), 48381 states have internal predecessors, (60937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:57,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48382 states to 48382 states and 60937 transitions. [2024-11-13 14:28:57,517 INFO L78 Accepts]: Start accepts. Automaton has 48382 states and 60937 transitions. Word has length 89 [2024-11-13 14:28:57,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:57,517 INFO L471 AbstractCegarLoop]: Abstraction has 48382 states and 60937 transitions. [2024-11-13 14:28:57,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:28:57,517 INFO L276 IsEmpty]: Start isEmpty. Operand 48382 states and 60937 transitions. [2024-11-13 14:28:57,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 14:28:57,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:57,521 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:57,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:28:57,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-13 14:28:57,722 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:57,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:57,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1212227767, now seen corresponding path program 1 times [2024-11-13 14:28:57,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:57,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001997721] [2024-11-13 14:28:57,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:57,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:58,429 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:58,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:58,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001997721] [2024-11-13 14:28:58,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001997721] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:58,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435305839] [2024-11-13 14:28:58,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:58,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:58,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:58,432 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:58,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:28:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:58,605 INFO L255 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 14:28:58,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:59,263 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:28:59,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:29:00,623 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:29:00,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435305839] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:29:00,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:29:00,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-13 14:29:00,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526175536] [2024-11-13 14:29:00,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:29:00,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 14:29:00,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:29:00,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 14:29:00,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:29:00,624 INFO L87 Difference]: Start difference. First operand 48382 states and 60937 transitions. Second operand has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:29:03,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:29:03,906 INFO L93 Difference]: Finished difference Result 134214 states and 168454 transitions. [2024-11-13 14:29:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:29:03,906 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-13 14:29:03,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:29:04,007 INFO L225 Difference]: With dead ends: 134214 [2024-11-13 14:29:04,007 INFO L226 Difference]: Without dead ends: 95533 [2024-11-13 14:29:04,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 14:29:04,040 INFO L432 NwaCegarLoop]: 1520 mSDtfsCounter, 7903 mSDsluCounter, 6406 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7903 SdHoareTripleChecker+Valid, 7926 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:29:04,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7903 Valid, 7926 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:29:04,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95533 states. [2024-11-13 14:29:07,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95533 to 94345. [2024-11-13 14:29:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94345 states, 94343 states have (on average 1.2388412494832686) internal successors, (116876), 94344 states have internal predecessors, (116876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:29:07,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94345 states to 94345 states and 116876 transitions. [2024-11-13 14:29:07,640 INFO L78 Accepts]: Start accepts. Automaton has 94345 states and 116876 transitions. Word has length 90 [2024-11-13 14:29:07,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:29:07,640 INFO L471 AbstractCegarLoop]: Abstraction has 94345 states and 116876 transitions. [2024-11-13 14:29:07,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:29:07,641 INFO L276 IsEmpty]: Start isEmpty. Operand 94345 states and 116876 transitions. [2024-11-13 14:29:07,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-13 14:29:07,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:29:07,643 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:29:07,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 14:29:07,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-13 14:29:07,844 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:29:07,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:29:07,844 INFO L85 PathProgramCache]: Analyzing trace with hash 359394581, now seen corresponding path program 1 times [2024-11-13 14:29:07,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:29:07,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383826686] [2024-11-13 14:29:07,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:29:07,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:29:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:29:08,229 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:29:08,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:29:08,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383826686] [2024-11-13 14:29:08,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383826686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:29:08,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015372712] [2024-11-13 14:29:08,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:29:08,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:29:08,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:29:08,232 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:29:08,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 14:29:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:29:08,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-13 14:29:08,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:31:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:25,668 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:31:35,940 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:35,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015372712] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:31:35,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:31:35,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 31, 30] total 68 [2024-11-13 14:31:35,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516540945] [2024-11-13 14:31:35,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:31:35,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2024-11-13 14:31:35,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:31:35,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2024-11-13 14:31:35,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=757, Invalid=3799, Unknown=0, NotChecked=0, Total=4556 [2024-11-13 14:31:35,944 INFO L87 Difference]: Start difference. First operand 94345 states and 116876 transitions. Second operand has 68 states, 68 states have (on average 3.6323529411764706) internal successors, (247), 68 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:32:03,752 WARN L286 SmtUtils]: Spent 9.80s on a formula simplification. DAG size of input: 367 DAG size of output: 277 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 14:32:13,078 WARN L286 SmtUtils]: Spent 8.80s on a formula simplification. DAG size of input: 366 DAG size of output: 272 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 14:32:29,109 WARN L286 SmtUtils]: Spent 13.26s on a formula simplification. DAG size of input: 479 DAG size of output: 306 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 14:32:35,938 WARN L286 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 383 DAG size of output: 290 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 14:32:41,676 WARN L286 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 367 DAG size of output: 280 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 14:34:02,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:02,932 INFO L93 Difference]: Finished difference Result 208690 states and 259383 transitions. [2024-11-13 14:34:02,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2024-11-13 14:34:02,933 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 3.6323529411764706) internal successors, (247), 68 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-13 14:34:02,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:03,053 INFO L225 Difference]: With dead ends: 208690 [2024-11-13 14:34:03,053 INFO L226 Difference]: Without dead ends: 125215 [2024-11-13 14:34:03,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13703 ImplicationChecksByTransitivity, 157.6s TimeCoverageRelationStatistics Valid=7594, Invalid=32206, Unknown=0, NotChecked=0, Total=39800 [2024-11-13 14:34:03,092 INFO L432 NwaCegarLoop]: 1557 mSDtfsCounter, 25355 mSDsluCounter, 25424 mSDsCounter, 0 mSdLazyCounter, 3561 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25355 SdHoareTripleChecker+Valid, 26981 SdHoareTripleChecker+Invalid, 3718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 3561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:03,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25355 Valid, 26981 Invalid, 3718 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [157 Valid, 3561 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2024-11-13 14:34:03,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125215 states. [2024-11-13 14:34:09,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125215 to 102830. [2024-11-13 14:34:09,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102830 states, 102828 states have (on average 1.234605360407671) internal successors, (126952), 102829 states have internal predecessors, (126952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:09,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102830 states to 102830 states and 126952 transitions. [2024-11-13 14:34:09,676 INFO L78 Accepts]: Start accepts. Automaton has 102830 states and 126952 transitions. Word has length 91 [2024-11-13 14:34:09,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:09,676 INFO L471 AbstractCegarLoop]: Abstraction has 102830 states and 126952 transitions. [2024-11-13 14:34:09,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 3.6323529411764706) internal successors, (247), 68 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:34:09,677 INFO L276 IsEmpty]: Start isEmpty. Operand 102830 states and 126952 transitions. [2024-11-13 14:34:09,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 14:34:09,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:09,680 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:09,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 14:34:09,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c02bcc5a-551b-4684-a67b-85d5c92c86d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-13 14:34:09,885 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:09,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:09,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1223762591, now seen corresponding path program 1 times [2024-11-13 14:34:09,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:09,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843455607] [2024-11-13 14:34:09,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:09,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat