./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem17_label50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem17_label50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 451c7dc1e9ccbf0e1b2bfff20c93c74c6a2c224dafb02ba3904b999265578105 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:48:32,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:48:32,544 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:48:32,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:48:32,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:48:32,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:48:32,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:48:32,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:48:32,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:48:32,579 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:48:32,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:48:32,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:48:32,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:48:32,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:48:32,580 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:48:32,580 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:48:32,580 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:48:32,580 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:48:32,581 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:48:32,581 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:48:32,581 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:48:32,581 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:48:32,581 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:48:32,581 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:48:32,581 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:48:32,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:48:32,581 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:48:32,581 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:48:32,582 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:48:32,582 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:48:32,582 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:48:32,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:48:32,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:48:32,582 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:48:32,582 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:48:32,582 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:48:32,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:48:32,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:48:32,583 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:48:32,583 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:48:32,583 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:48:32,583 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:48:32,583 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:48:32,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:48:32,583 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:48:32,583 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:48:32,584 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:48:32,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:48:32,584 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_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 451c7dc1e9ccbf0e1b2bfff20c93c74c6a2c224dafb02ba3904b999265578105 [2024-11-28 03:48:32,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:48:32,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:48:32,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:48:32,955 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:48:32,956 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:48:32,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem17_label50.c [2024-11-28 03:48:35,859 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/data/99679151c/a2b6ffdf068e487db42b2dd06220badb/FLAGa2036333a [2024-11-28 03:48:36,566 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:48:36,569 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/sv-benchmarks/c/eca-rers2012/Problem17_label50.c [2024-11-28 03:48:36,598 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/data/99679151c/a2b6ffdf068e487db42b2dd06220badb/FLAGa2036333a [2024-11-28 03:48:36,623 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/data/99679151c/a2b6ffdf068e487db42b2dd06220badb [2024-11-28 03:48:36,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:48:36,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:48:36,631 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:48:36,631 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:48:36,640 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:48:36,641 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:48:36" (1/1) ... [2024-11-28 03:48:36,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6105c26a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:36, skipping insertion in model container [2024-11-28 03:48:36,644 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:48:36" (1/1) ... [2024-11-28 03:48:36,737 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:48:36,924 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_fd3671a0-aaf1-4281-aaaa-04fc69b00784/sv-benchmarks/c/eca-rers2012/Problem17_label50.c[1517,1530] [2024-11-28 03:48:38,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:48:38,018 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:48:38,036 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_fd3671a0-aaf1-4281-aaaa-04fc69b00784/sv-benchmarks/c/eca-rers2012/Problem17_label50.c[1517,1530] [2024-11-28 03:48:38,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:48:38,594 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:48:38,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38 WrapperNode [2024-11-28 03:48:38,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:48:38,596 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:48:38,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:48:38,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:48:38,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38" (1/1) ... [2024-11-28 03:48:38,682 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38" (1/1) ... [2024-11-28 03:48:39,090 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2612 [2024-11-28 03:48:39,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:48:39,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:48:39,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:48:39,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:48:39,105 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38" (1/1) ... [2024-11-28 03:48:39,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38" (1/1) ... [2024-11-28 03:48:39,177 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38" (1/1) ... [2024-11-28 03:48:39,390 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:48:39,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38" (1/1) ... [2024-11-28 03:48:39,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38" (1/1) ... [2024-11-28 03:48:39,533 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38" (1/1) ... [2024-11-28 03:48:39,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38" (1/1) ... [2024-11-28 03:48:39,587 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38" (1/1) ... [2024-11-28 03:48:39,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38" (1/1) ... [2024-11-28 03:48:39,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38" (1/1) ... [2024-11-28 03:48:39,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:48:39,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:48:39,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:48:39,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:48:39,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38" (1/1) ... [2024-11-28 03:48:39,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:48:39,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:48:39,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:48:39,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:48:39,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:48:39,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:48:39,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:48:39,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:48:39,887 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:48:39,889 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:48:44,738 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-11-28 03:48:44,738 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:48:44,776 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:48:44,780 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:48:44,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:48:44 BoogieIcfgContainer [2024-11-28 03:48:44,781 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:48:44,783 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:48:44,783 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:48:44,792 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:48:44,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:48:36" (1/3) ... [2024-11-28 03:48:44,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330d70b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:48:44, skipping insertion in model container [2024-11-28 03:48:44,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:48:38" (2/3) ... [2024-11-28 03:48:44,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330d70b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:48:44, skipping insertion in model container [2024-11-28 03:48:44,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:48:44" (3/3) ... [2024-11-28 03:48:44,797 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem17_label50.c [2024-11-28 03:48:44,812 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:48:44,814 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem17_label50.c that has 1 procedures, 590 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:48:44,900 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:48:44,917 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;@4c86171e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:48:44,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:48:44,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 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) [2024-11-28 03:48:44,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 03:48:44,930 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:48:44,930 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:48:44,931 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:48:44,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:48:44,937 INFO L85 PathProgramCache]: Analyzing trace with hash 647015545, now seen corresponding path program 1 times [2024-11-28 03:48:44,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:48:44,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645686439] [2024-11-28 03:48:44,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:48:44,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:48:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:48:45,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:48:45,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:48:45,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645686439] [2024-11-28 03:48:45,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645686439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:48:45,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:48:45,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:48:45,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784166706] [2024-11-28 03:48:45,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:48:45,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:48:45,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:48:45,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:48:45,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:48:45,217 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 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 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-28 03:48:48,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:48:48,691 INFO L93 Difference]: Finished difference Result 1667 states and 3061 transitions. [2024-11-28 03:48:48,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:48:48,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2024-11-28 03:48:48,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:48:48,711 INFO L225 Difference]: With dead ends: 1667 [2024-11-28 03:48:48,712 INFO L226 Difference]: Without dead ends: 998 [2024-11-28 03:48:48,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:48:48,721 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 536 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:48:48,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 276 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 03:48:48,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2024-11-28 03:48:48,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 982. [2024-11-28 03:48:48,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 981 states have (on average 1.707441386340469) internal successors, (1675), 981 states have internal predecessors, (1675), 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) [2024-11-28 03:48:48,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1675 transitions. [2024-11-28 03:48:48,882 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1675 transitions. Word has length 9 [2024-11-28 03:48:48,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:48:48,882 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1675 transitions. [2024-11-28 03:48:48,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-28 03:48:48,882 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1675 transitions. [2024-11-28 03:48:48,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:48:48,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:48:48,886 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:48:48,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:48:48,887 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:48:48,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:48:48,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2030614627, now seen corresponding path program 1 times [2024-11-28 03:48:48,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:48:48,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505595839] [2024-11-28 03:48:48,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:48:48,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:48:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:48:49,341 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:48:49,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:48:49,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505595839] [2024-11-28 03:48:49,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505595839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:48:49,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:48:49,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:48:49,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77032135] [2024-11-28 03:48:49,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:48:49,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:48:49,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:48:49,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:48:49,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:48:49,347 INFO L87 Difference]: Start difference. First operand 982 states and 1675 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 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) [2024-11-28 03:48:52,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:48:52,346 INFO L93 Difference]: Finished difference Result 2843 states and 4882 transitions. [2024-11-28 03:48:52,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:48:52,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 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 74 [2024-11-28 03:48:52,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:48:52,355 INFO L225 Difference]: With dead ends: 2843 [2024-11-28 03:48:52,355 INFO L226 Difference]: Without dead ends: 1863 [2024-11-28 03:48:52,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:48:52,358 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 409 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:48:52,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 495 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 03:48:52,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2024-11-28 03:48:52,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1857. [2024-11-28 03:48:52,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1857 states, 1856 states have (on average 1.4552801724137931) internal successors, (2701), 1856 states have internal predecessors, (2701), 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) [2024-11-28 03:48:52,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1857 states to 1857 states and 2701 transitions. [2024-11-28 03:48:52,420 INFO L78 Accepts]: Start accepts. Automaton has 1857 states and 2701 transitions. Word has length 74 [2024-11-28 03:48:52,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:48:52,421 INFO L471 AbstractCegarLoop]: Abstraction has 1857 states and 2701 transitions. [2024-11-28 03:48:52,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 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) [2024-11-28 03:48:52,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1857 states and 2701 transitions. [2024-11-28 03:48:52,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 03:48:52,425 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:48:52,425 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:48:52,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:48:52,425 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:48:52,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:48:52,427 INFO L85 PathProgramCache]: Analyzing trace with hash -634340724, now seen corresponding path program 1 times [2024-11-28 03:48:52,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:48:52,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391890528] [2024-11-28 03:48:52,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:48:52,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:48:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:48:52,725 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:48:52,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:48:52,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391890528] [2024-11-28 03:48:52,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391890528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:48:52,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:48:52,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:48:52,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898630555] [2024-11-28 03:48:52,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:48:52,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:48:52,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:48:52,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:48:52,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:48:52,729 INFO L87 Difference]: Start difference. First operand 1857 states and 2701 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 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) [2024-11-28 03:48:55,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:48:55,283 INFO L93 Difference]: Finished difference Result 5425 states and 7895 transitions. [2024-11-28 03:48:55,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:48:55,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 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 [2024-11-28 03:48:55,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:48:55,298 INFO L225 Difference]: With dead ends: 5425 [2024-11-28 03:48:55,298 INFO L226 Difference]: Without dead ends: 3570 [2024-11-28 03:48:55,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:48:55,302 INFO L435 NwaCegarLoop]: 516 mSDtfsCounter, 387 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:48:55,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 591 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 03:48:55,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3570 states. [2024-11-28 03:48:55,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3570 to 2714. [2024-11-28 03:48:55,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2714 states, 2713 states have (on average 1.315886472539624) internal successors, (3570), 2713 states have internal predecessors, (3570), 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) [2024-11-28 03:48:55,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2714 states to 2714 states and 3570 transitions. [2024-11-28 03:48:55,387 INFO L78 Accepts]: Start accepts. Automaton has 2714 states and 3570 transitions. Word has length 80 [2024-11-28 03:48:55,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:48:55,390 INFO L471 AbstractCegarLoop]: Abstraction has 2714 states and 3570 transitions. [2024-11-28 03:48:55,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 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) [2024-11-28 03:48:55,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2714 states and 3570 transitions. [2024-11-28 03:48:55,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 03:48:55,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:48:55,398 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:48:55,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:48:55,398 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:48:55,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:48:55,399 INFO L85 PathProgramCache]: Analyzing trace with hash -516869556, now seen corresponding path program 1 times [2024-11-28 03:48:55,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:48:55,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78027074] [2024-11-28 03:48:55,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:48:55,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:48:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:48:56,286 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:48:56,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:48:56,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78027074] [2024-11-28 03:48:56,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78027074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:48:56,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:48:56,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:48:56,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641649261] [2024-11-28 03:48:56,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:48:56,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:48:56,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:48:56,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:48:56,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:48:56,290 INFO L87 Difference]: Start difference. First operand 2714 states and 3570 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-28 03:48:59,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:48:59,361 INFO L93 Difference]: Finished difference Result 7147 states and 9641 transitions. [2024-11-28 03:48:59,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:48:59,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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 157 [2024-11-28 03:48:59,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:48:59,376 INFO L225 Difference]: With dead ends: 7147 [2024-11-28 03:48:59,376 INFO L226 Difference]: Without dead ends: 4435 [2024-11-28 03:48:59,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:48:59,380 INFO L435 NwaCegarLoop]: 765 mSDtfsCounter, 1651 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 956 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 2745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 956 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:48:59,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1651 Valid, 863 Invalid, 2745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [956 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:48:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4435 states. [2024-11-28 03:48:59,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4435 to 4424. [2024-11-28 03:48:59,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4423 states have (on average 1.2912050644359032) internal successors, (5711), 4423 states have internal predecessors, (5711), 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) [2024-11-28 03:48:59,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 5711 transitions. [2024-11-28 03:48:59,467 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 5711 transitions. Word has length 157 [2024-11-28 03:48:59,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:48:59,469 INFO L471 AbstractCegarLoop]: Abstraction has 4424 states and 5711 transitions. [2024-11-28 03:48:59,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-28 03:48:59,470 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 5711 transitions. [2024-11-28 03:48:59,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-28 03:48:59,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:48:59,475 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:48:59,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:48:59,475 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:48:59,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:48:59,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2127190533, now seen corresponding path program 1 times [2024-11-28 03:48:59,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:48:59,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747744440] [2024-11-28 03:48:59,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:48:59,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:48:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:48:59,847 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-28 03:48:59,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:48:59,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747744440] [2024-11-28 03:48:59,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747744440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:48:59,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:48:59,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:48:59,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095188917] [2024-11-28 03:48:59,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:48:59,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:48:59,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:48:59,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:48:59,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:48:59,850 INFO L87 Difference]: Start difference. First operand 4424 states and 5711 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-28 03:49:02,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:02,459 INFO L93 Difference]: Finished difference Result 10593 states and 13804 transitions. [2024-11-28 03:49:02,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:02,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 163 [2024-11-28 03:49:02,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:02,476 INFO L225 Difference]: With dead ends: 10593 [2024-11-28 03:49:02,476 INFO L226 Difference]: Without dead ends: 6171 [2024-11-28 03:49:02,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:02,482 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 544 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:02,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 240 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 03:49:02,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6171 states. [2024-11-28 03:49:02,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6171 to 6153. [2024-11-28 03:49:02,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6153 states, 6152 states have (on average 1.303966189856957) internal successors, (8022), 6152 states have internal predecessors, (8022), 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) [2024-11-28 03:49:02,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6153 states to 6153 states and 8022 transitions. [2024-11-28 03:49:02,638 INFO L78 Accepts]: Start accepts. Automaton has 6153 states and 8022 transitions. Word has length 163 [2024-11-28 03:49:02,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:02,639 INFO L471 AbstractCegarLoop]: Abstraction has 6153 states and 8022 transitions. [2024-11-28 03:49:02,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-28 03:49:02,639 INFO L276 IsEmpty]: Start isEmpty. Operand 6153 states and 8022 transitions. [2024-11-28 03:49:02,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:49:02,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:02,642 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:02,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:49:02,642 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:02,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:02,643 INFO L85 PathProgramCache]: Analyzing trace with hash -406876171, now seen corresponding path program 1 times [2024-11-28 03:49:02,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:02,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720935294] [2024-11-28 03:49:02,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:02,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:03,213 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 13 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:49:03,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:03,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720935294] [2024-11-28 03:49:03,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720935294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:49:03,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866748505] [2024-11-28 03:49:03,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:03,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:49:03,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:49:03,217 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:49:03,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:49:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:03,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:49:03,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:49:03,784 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 13 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:49:03,784 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:49:04,217 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:49:04,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866748505] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:49:04,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:49:04,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 7 [2024-11-28 03:49:04,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553272910] [2024-11-28 03:49:04,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:04,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:49:04,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:04,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:49:04,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:49:04,220 INFO L87 Difference]: Start difference. First operand 6153 states and 8022 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 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) [2024-11-28 03:49:08,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:08,451 INFO L93 Difference]: Finished difference Result 19997 states and 26780 transitions. [2024-11-28 03:49:08,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:49:08,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 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 229 [2024-11-28 03:49:08,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:08,480 INFO L225 Difference]: With dead ends: 19997 [2024-11-28 03:49:08,480 INFO L226 Difference]: Without dead ends: 12537 [2024-11-28 03:49:08,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:49:08,486 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 847 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 823 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:08,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 168 Invalid, 3142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [823 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 03:49:08,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12537 states. [2024-11-28 03:49:08,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12537 to 12531. [2024-11-28 03:49:08,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12531 states, 12530 states have (on average 1.2289704708699123) internal successors, (15399), 12530 states have internal predecessors, (15399), 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) [2024-11-28 03:49:08,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12531 states to 12531 states and 15399 transitions. [2024-11-28 03:49:08,700 INFO L78 Accepts]: Start accepts. Automaton has 12531 states and 15399 transitions. Word has length 229 [2024-11-28 03:49:08,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:08,701 INFO L471 AbstractCegarLoop]: Abstraction has 12531 states and 15399 transitions. [2024-11-28 03:49:08,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 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) [2024-11-28 03:49:08,701 INFO L276 IsEmpty]: Start isEmpty. Operand 12531 states and 15399 transitions. [2024-11-28 03:49:08,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-28 03:49:08,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:08,705 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:08,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:49:08,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:49:08,906 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:08,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:08,907 INFO L85 PathProgramCache]: Analyzing trace with hash 805102240, now seen corresponding path program 1 times [2024-11-28 03:49:08,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:08,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748415895] [2024-11-28 03:49:08,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:08,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:09,312 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:49:09,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:09,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748415895] [2024-11-28 03:49:09,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748415895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:09,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:09,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:49:09,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848662524] [2024-11-28 03:49:09,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:09,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:09,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:09,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:09,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:09,314 INFO L87 Difference]: Start difference. First operand 12531 states and 15399 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2024-11-28 03:49:11,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:11,366 INFO L93 Difference]: Finished difference Result 34470 states and 41945 transitions. [2024-11-28 03:49:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:11,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 266 [2024-11-28 03:49:11,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:11,409 INFO L225 Difference]: With dead ends: 34470 [2024-11-28 03:49:11,409 INFO L226 Difference]: Without dead ends: 20239 [2024-11-28 03:49:11,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:11,422 INFO L435 NwaCegarLoop]: 747 mSDtfsCounter, 301 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:11,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 815 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 03:49:11,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20239 states. [2024-11-28 03:49:11,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20239 to 19801. [2024-11-28 03:49:11,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19801 states, 19800 states have (on average 1.1657070707070707) internal successors, (23081), 19800 states have internal predecessors, (23081), 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) [2024-11-28 03:49:11,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19801 states to 19801 states and 23081 transitions. [2024-11-28 03:49:11,784 INFO L78 Accepts]: Start accepts. Automaton has 19801 states and 23081 transitions. Word has length 266 [2024-11-28 03:49:11,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:11,785 INFO L471 AbstractCegarLoop]: Abstraction has 19801 states and 23081 transitions. [2024-11-28 03:49:11,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2024-11-28 03:49:11,785 INFO L276 IsEmpty]: Start isEmpty. Operand 19801 states and 23081 transitions. [2024-11-28 03:49:11,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-28 03:49:11,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:11,793 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:11,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:49:11,794 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:11,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:11,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1154149176, now seen corresponding path program 1 times [2024-11-28 03:49:11,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:11,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448934850] [2024-11-28 03:49:11,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:11,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:12,134 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-28 03:49:12,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:12,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448934850] [2024-11-28 03:49:12,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448934850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:12,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:12,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:49:12,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598753400] [2024-11-28 03:49:12,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:12,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:12,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:12,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:12,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:12,137 INFO L87 Difference]: Start difference. First operand 19801 states and 23081 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-11-28 03:49:14,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:14,011 INFO L93 Difference]: Finished difference Result 43851 states and 51236 transitions. [2024-11-28 03:49:14,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:14,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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 348 [2024-11-28 03:49:14,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:14,049 INFO L225 Difference]: With dead ends: 43851 [2024-11-28 03:49:14,049 INFO L226 Difference]: Without dead ends: 24052 [2024-11-28 03:49:14,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:14,064 INFO L435 NwaCegarLoop]: 730 mSDtfsCounter, 275 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:14,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 794 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:49:14,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24052 states. [2024-11-28 03:49:14,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24052 to 24052. [2024-11-28 03:49:14,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24052 states, 24051 states have (on average 1.1488919379651574) internal successors, (27632), 24051 states have internal predecessors, (27632), 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) [2024-11-28 03:49:14,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24052 states to 24052 states and 27632 transitions. [2024-11-28 03:49:14,334 INFO L78 Accepts]: Start accepts. Automaton has 24052 states and 27632 transitions. Word has length 348 [2024-11-28 03:49:14,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:14,335 INFO L471 AbstractCegarLoop]: Abstraction has 24052 states and 27632 transitions. [2024-11-28 03:49:14,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-11-28 03:49:14,335 INFO L276 IsEmpty]: Start isEmpty. Operand 24052 states and 27632 transitions. [2024-11-28 03:49:14,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2024-11-28 03:49:14,344 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:14,344 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:14,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:49:14,345 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:14,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:14,349 INFO L85 PathProgramCache]: Analyzing trace with hash 595362029, now seen corresponding path program 1 times [2024-11-28 03:49:14,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:14,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040181149] [2024-11-28 03:49:14,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:14,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:14,926 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-28 03:49:14,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:14,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040181149] [2024-11-28 03:49:14,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040181149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:14,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:14,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:49:14,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285866116] [2024-11-28 03:49:14,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:14,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:14,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:14,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:14,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:14,928 INFO L87 Difference]: Start difference. First operand 24052 states and 27632 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2024-11-28 03:49:17,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:17,215 INFO L93 Difference]: Finished difference Result 60926 states and 70205 transitions. [2024-11-28 03:49:17,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:17,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 371 [2024-11-28 03:49:17,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:17,271 INFO L225 Difference]: With dead ends: 60926 [2024-11-28 03:49:17,271 INFO L226 Difference]: Without dead ends: 36876 [2024-11-28 03:49:17,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:17,290 INFO L435 NwaCegarLoop]: 648 mSDtfsCounter, 334 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:17,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 692 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:49:17,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36876 states. [2024-11-28 03:49:17,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36876 to 34716. [2024-11-28 03:49:17,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34716 states, 34715 states have (on average 1.1565029526141437) internal successors, (40148), 34715 states have internal predecessors, (40148), 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) [2024-11-28 03:49:17,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34716 states to 34716 states and 40148 transitions. [2024-11-28 03:49:17,768 INFO L78 Accepts]: Start accepts. Automaton has 34716 states and 40148 transitions. Word has length 371 [2024-11-28 03:49:17,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:17,769 INFO L471 AbstractCegarLoop]: Abstraction has 34716 states and 40148 transitions. [2024-11-28 03:49:17,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2024-11-28 03:49:17,769 INFO L276 IsEmpty]: Start isEmpty. Operand 34716 states and 40148 transitions. [2024-11-28 03:49:17,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-28 03:49:17,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:17,779 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:17,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:49:17,779 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:17,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:17,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1359032333, now seen corresponding path program 1 times [2024-11-28 03:49:17,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:17,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139409362] [2024-11-28 03:49:17,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:17,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:18,208 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-28 03:49:18,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:18,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139409362] [2024-11-28 03:49:18,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139409362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:18,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:18,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:49:18,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82337183] [2024-11-28 03:49:18,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:18,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:18,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:18,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:18,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:18,214 INFO L87 Difference]: Start difference. First operand 34716 states and 40148 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 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) [2024-11-28 03:49:20,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:20,505 INFO L93 Difference]: Finished difference Result 78831 states and 90900 transitions. [2024-11-28 03:49:20,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:20,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 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 372 [2024-11-28 03:49:20,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:20,802 INFO L225 Difference]: With dead ends: 78831 [2024-11-28 03:49:20,802 INFO L226 Difference]: Without dead ends: 43692 [2024-11-28 03:49:20,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:20,819 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 517 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 1561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:20,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 172 Invalid, 1561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:49:20,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43692 states. [2024-11-28 03:49:21,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43692 to 35139. [2024-11-28 03:49:21,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35139 states, 35138 states have (on average 1.155102737776766) internal successors, (40588), 35138 states have internal predecessors, (40588), 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) [2024-11-28 03:49:21,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35139 states to 35139 states and 40588 transitions. [2024-11-28 03:49:21,466 INFO L78 Accepts]: Start accepts. Automaton has 35139 states and 40588 transitions. Word has length 372 [2024-11-28 03:49:21,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:21,467 INFO L471 AbstractCegarLoop]: Abstraction has 35139 states and 40588 transitions. [2024-11-28 03:49:21,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 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) [2024-11-28 03:49:21,468 INFO L276 IsEmpty]: Start isEmpty. Operand 35139 states and 40588 transitions. [2024-11-28 03:49:21,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-28 03:49:21,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:21,490 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:49:21,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:49:21,491 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:21,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:21,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1137848729, now seen corresponding path program 1 times [2024-11-28 03:49:21,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:21,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142109472] [2024-11-28 03:49:21,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:21,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:22,537 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-28 03:49:22,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:22,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142109472] [2024-11-28 03:49:22,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142109472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:22,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:22,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:49:22,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78602827] [2024-11-28 03:49:22,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:22,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:22,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:22,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:22,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:22,541 INFO L87 Difference]: Start difference. First operand 35139 states and 40588 transitions. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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) [2024-11-28 03:49:24,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:24,747 INFO L93 Difference]: Finished difference Result 74975 states and 86935 transitions. [2024-11-28 03:49:24,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:24,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 414 [2024-11-28 03:49:24,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:24,778 INFO L225 Difference]: With dead ends: 74975 [2024-11-28 03:49:24,778 INFO L226 Difference]: Without dead ends: 39838 [2024-11-28 03:49:24,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:24,797 INFO L435 NwaCegarLoop]: 732 mSDtfsCounter, 295 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:24,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 796 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:49:24,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39838 states. [2024-11-28 03:49:25,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39838 to 39831. [2024-11-28 03:49:25,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39831 states, 39830 states have (on average 1.1538538789856891) internal successors, (45958), 39830 states have internal predecessors, (45958), 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) [2024-11-28 03:49:25,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39831 states to 39831 states and 45958 transitions. [2024-11-28 03:49:25,247 INFO L78 Accepts]: Start accepts. Automaton has 39831 states and 45958 transitions. Word has length 414 [2024-11-28 03:49:25,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:25,248 INFO L471 AbstractCegarLoop]: Abstraction has 39831 states and 45958 transitions. [2024-11-28 03:49:25,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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) [2024-11-28 03:49:25,248 INFO L276 IsEmpty]: Start isEmpty. Operand 39831 states and 45958 transitions. [2024-11-28 03:49:25,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2024-11-28 03:49:25,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:25,259 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:25,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:49:25,260 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:25,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:25,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1337478149, now seen corresponding path program 1 times [2024-11-28 03:49:25,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:25,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569868170] [2024-11-28 03:49:25,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:25,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:25,812 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-28 03:49:25,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:25,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569868170] [2024-11-28 03:49:25,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569868170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:25,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:25,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:49:25,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859701529] [2024-11-28 03:49:25,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:25,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:25,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:25,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:25,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:25,815 INFO L87 Difference]: Start difference. First operand 39831 states and 45958 transitions. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2024-11-28 03:49:28,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:28,553 INFO L93 Difference]: Finished difference Result 95409 states and 110033 transitions. [2024-11-28 03:49:28,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:28,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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 442 [2024-11-28 03:49:28,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:28,602 INFO L225 Difference]: With dead ends: 95409 [2024-11-28 03:49:28,602 INFO L226 Difference]: Without dead ends: 55579 [2024-11-28 03:49:28,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:28,625 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 292 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:28,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 409 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1289 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 03:49:28,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55579 states. [2024-11-28 03:49:29,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55579 to 52589. [2024-11-28 03:49:29,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52589 states, 52588 states have (on average 1.1394234426104815) internal successors, (59920), 52588 states have internal predecessors, (59920), 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) [2024-11-28 03:49:29,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52589 states to 52589 states and 59920 transitions. [2024-11-28 03:49:29,374 INFO L78 Accepts]: Start accepts. Automaton has 52589 states and 59920 transitions. Word has length 442 [2024-11-28 03:49:29,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:29,375 INFO L471 AbstractCegarLoop]: Abstraction has 52589 states and 59920 transitions. [2024-11-28 03:49:29,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2024-11-28 03:49:29,376 INFO L276 IsEmpty]: Start isEmpty. Operand 52589 states and 59920 transitions. [2024-11-28 03:49:29,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-28 03:49:29,391 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:29,391 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:29,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:49:29,392 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:29,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:29,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1777864081, now seen corresponding path program 1 times [2024-11-28 03:49:29,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:29,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95737092] [2024-11-28 03:49:29,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:29,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:29,830 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-28 03:49:29,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:29,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95737092] [2024-11-28 03:49:29,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95737092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:29,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:29,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:49:29,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956217293] [2024-11-28 03:49:29,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:29,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:29,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:29,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:29,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:29,834 INFO L87 Difference]: Start difference. First operand 52589 states and 59920 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2024-11-28 03:49:32,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:32,024 INFO L93 Difference]: Finished difference Result 104740 states and 119344 transitions. [2024-11-28 03:49:32,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:32,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 482 [2024-11-28 03:49:32,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:32,075 INFO L225 Difference]: With dead ends: 104740 [2024-11-28 03:49:32,075 INFO L226 Difference]: Without dead ends: 52153 [2024-11-28 03:49:32,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:32,101 INFO L435 NwaCegarLoop]: 661 mSDtfsCounter, 495 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:32,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 724 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1167 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:49:32,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52153 states. [2024-11-28 03:49:32,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52153 to 51297. [2024-11-28 03:49:32,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51297 states, 51296 states have (on average 1.103828758577667) internal successors, (56622), 51296 states have internal predecessors, (56622), 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) [2024-11-28 03:49:32,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51297 states to 51297 states and 56622 transitions. [2024-11-28 03:49:32,816 INFO L78 Accepts]: Start accepts. Automaton has 51297 states and 56622 transitions. Word has length 482 [2024-11-28 03:49:32,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:32,816 INFO L471 AbstractCegarLoop]: Abstraction has 51297 states and 56622 transitions. [2024-11-28 03:49:32,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2024-11-28 03:49:32,817 INFO L276 IsEmpty]: Start isEmpty. Operand 51297 states and 56622 transitions. [2024-11-28 03:49:32,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2024-11-28 03:49:32,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:32,825 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:32,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:49:32,825 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:32,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:32,826 INFO L85 PathProgramCache]: Analyzing trace with hash -283806341, now seen corresponding path program 1 times [2024-11-28 03:49:32,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:32,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322377532] [2024-11-28 03:49:32,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:32,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:33,476 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 03:49:33,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:33,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322377532] [2024-11-28 03:49:33,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322377532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:33,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:33,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:49:33,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723394594] [2024-11-28 03:49:33,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:33,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:33,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:33,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:33,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:33,480 INFO L87 Difference]: Start difference. First operand 51297 states and 56622 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2024-11-28 03:49:35,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:35,787 INFO L93 Difference]: Finished difference Result 115798 states and 128215 transitions. [2024-11-28 03:49:35,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:35,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 483 [2024-11-28 03:49:35,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:35,839 INFO L225 Difference]: With dead ends: 115798 [2024-11-28 03:49:35,839 INFO L226 Difference]: Without dead ends: 64503 [2024-11-28 03:49:35,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:35,861 INFO L435 NwaCegarLoop]: 319 mSDtfsCounter, 471 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:35,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 377 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:49:35,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64503 states. [2024-11-28 03:49:36,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64503 to 53000. [2024-11-28 03:49:36,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53000 states, 52999 states have (on average 1.1035679918489028) internal successors, (58488), 52999 states have internal predecessors, (58488), 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) [2024-11-28 03:49:36,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53000 states to 53000 states and 58488 transitions. [2024-11-28 03:49:36,380 INFO L78 Accepts]: Start accepts. Automaton has 53000 states and 58488 transitions. Word has length 483 [2024-11-28 03:49:36,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:36,381 INFO L471 AbstractCegarLoop]: Abstraction has 53000 states and 58488 transitions. [2024-11-28 03:49:36,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2024-11-28 03:49:36,381 INFO L276 IsEmpty]: Start isEmpty. Operand 53000 states and 58488 transitions. [2024-11-28 03:49:36,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2024-11-28 03:49:36,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:36,404 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:49:36,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:49:36,404 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:36,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:36,405 INFO L85 PathProgramCache]: Analyzing trace with hash -983224542, now seen corresponding path program 1 times [2024-11-28 03:49:36,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:36,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583323885] [2024-11-28 03:49:36,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:36,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:37,503 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 331 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-28 03:49:37,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:37,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583323885] [2024-11-28 03:49:37,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583323885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:37,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:37,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:49:37,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689165590] [2024-11-28 03:49:37,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:37,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:37,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:37,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:37,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:37,507 INFO L87 Difference]: Start difference. First operand 53000 states and 58488 transitions. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2024-11-28 03:49:39,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:39,792 INFO L93 Difference]: Finished difference Result 119189 states and 131869 transitions. [2024-11-28 03:49:39,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:39,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 495 [2024-11-28 03:49:39,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:39,839 INFO L225 Difference]: With dead ends: 119189 [2024-11-28 03:49:39,839 INFO L226 Difference]: Without dead ends: 64489 [2024-11-28 03:49:39,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:39,860 INFO L435 NwaCegarLoop]: 704 mSDtfsCounter, 279 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:39,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 760 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:49:39,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64489 states. [2024-11-28 03:49:40,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64489 to 52530. [2024-11-28 03:49:40,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52530 states, 52529 states have (on average 1.0992023453711284) internal successors, (57740), 52529 states have internal predecessors, (57740), 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) [2024-11-28 03:49:40,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52530 states to 52530 states and 57740 transitions. [2024-11-28 03:49:40,517 INFO L78 Accepts]: Start accepts. Automaton has 52530 states and 57740 transitions. Word has length 495 [2024-11-28 03:49:40,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:40,518 INFO L471 AbstractCegarLoop]: Abstraction has 52530 states and 57740 transitions. [2024-11-28 03:49:40,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2024-11-28 03:49:40,518 INFO L276 IsEmpty]: Start isEmpty. Operand 52530 states and 57740 transitions. [2024-11-28 03:49:40,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2024-11-28 03:49:40,532 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:40,532 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:40,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:49:40,532 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:40,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:40,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1126737193, now seen corresponding path program 1 times [2024-11-28 03:49:40,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:40,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317582934] [2024-11-28 03:49:40,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:40,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:42,097 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 325 proven. 7 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-28 03:49:42,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:42,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317582934] [2024-11-28 03:49:42,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317582934] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:49:42,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78288351] [2024-11-28 03:49:42,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:42,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:49:42,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:49:42,101 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:49:42,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:49:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:42,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:49:42,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:49:42,950 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 387 proven. 82 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-28 03:49:42,950 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:49:44,284 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 387 proven. 82 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-28 03:49:44,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78288351] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:49:44,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:49:44,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2024-11-28 03:49:44,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766152433] [2024-11-28 03:49:44,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:49:44,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:49:44,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:44,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:49:44,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:49:44,287 INFO L87 Difference]: Start difference. First operand 52530 states and 57740 transitions. Second operand has 9 states, 9 states have (on average 97.33333333333333) internal successors, (876), 9 states have internal predecessors, (876), 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) [2024-11-28 03:50:01,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:01,866 INFO L93 Difference]: Finished difference Result 175755 states and 192674 transitions. [2024-11-28 03:50:01,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 03:50:01,867 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 97.33333333333333) internal successors, (876), 9 states have internal predecessors, (876), 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 498 [2024-11-28 03:50:01,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:01,959 INFO L225 Difference]: With dead ends: 175755 [2024-11-28 03:50:01,959 INFO L226 Difference]: Without dead ends: 115558 [2024-11-28 03:50:01,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1035 GetRequests, 1010 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:50:01,994 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 11909 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 13623 mSolverCounterSat, 3280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11909 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 16903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3280 IncrementalHoareTripleChecker+Valid, 13623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:01,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11909 Valid, 422 Invalid, 16903 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3280 Valid, 13623 Invalid, 0 Unknown, 0 Unchecked, 16.1s Time] [2024-11-28 03:50:02,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115558 states. [2024-11-28 03:50:03,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115558 to 102304. [2024-11-28 03:50:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102304 states, 102303 states have (on average 1.0798608056459733) internal successors, (110473), 102303 states have internal predecessors, (110473), 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) [2024-11-28 03:50:03,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102304 states to 102304 states and 110473 transitions. [2024-11-28 03:50:03,425 INFO L78 Accepts]: Start accepts. Automaton has 102304 states and 110473 transitions. Word has length 498 [2024-11-28 03:50:03,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:03,425 INFO L471 AbstractCegarLoop]: Abstraction has 102304 states and 110473 transitions. [2024-11-28 03:50:03,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 97.33333333333333) internal successors, (876), 9 states have internal predecessors, (876), 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) [2024-11-28 03:50:03,426 INFO L276 IsEmpty]: Start isEmpty. Operand 102304 states and 110473 transitions. [2024-11-28 03:50:03,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2024-11-28 03:50:03,431 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:03,432 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:50:03,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:50:03,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3671a0-aaf1-4281-aaaa-04fc69b00784/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 03:50:03,632 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:03,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:03,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1903355248, now seen corresponding path program 1 times [2024-11-28 03:50:03,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:03,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589775817] [2024-11-28 03:50:03,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:03,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:04,410 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-11-28 03:50:04,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:04,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589775817] [2024-11-28 03:50:04,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589775817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:04,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:04,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:50:04,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910404168] [2024-11-28 03:50:04,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:04,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:50:04,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:04,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:50:04,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:50:04,416 INFO L87 Difference]: Start difference. First operand 102304 states and 110473 transitions. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2024-11-28 03:50:08,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:08,055 INFO L93 Difference]: Finished difference Result 226322 states and 244555 transitions. [2024-11-28 03:50:08,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:50:08,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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 557 [2024-11-28 03:50:08,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:08,363 INFO L225 Difference]: With dead ends: 226322 [2024-11-28 03:50:08,363 INFO L226 Difference]: Without dead ends: 124870 [2024-11-28 03:50:08,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:50:08,400 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 787 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 2342 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 2639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 2342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:08,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 259 Invalid, 2639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 2342 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:50:08,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124870 states. [2024-11-28 03:50:09,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124870 to 112077. [2024-11-28 03:50:09,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112077 states, 112076 states have (on average 1.0731467932474392) internal successors, (120274), 112076 states have internal predecessors, (120274), 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) [2024-11-28 03:50:09,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112077 states to 112077 states and 120274 transitions. [2024-11-28 03:50:09,775 INFO L78 Accepts]: Start accepts. Automaton has 112077 states and 120274 transitions. Word has length 557 [2024-11-28 03:50:09,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:09,776 INFO L471 AbstractCegarLoop]: Abstraction has 112077 states and 120274 transitions. [2024-11-28 03:50:09,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2024-11-28 03:50:09,776 INFO L276 IsEmpty]: Start isEmpty. Operand 112077 states and 120274 transitions. [2024-11-28 03:50:09,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2024-11-28 03:50:09,783 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:09,783 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:50:09,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:50:09,784 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:09,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:09,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1178922573, now seen corresponding path program 1 times [2024-11-28 03:50:09,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:09,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348506396] [2024-11-28 03:50:09,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:09,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:10,552 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2024-11-28 03:50:10,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:10,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348506396] [2024-11-28 03:50:10,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348506396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:10,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:10,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:50:10,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685022476] [2024-11-28 03:50:10,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:10,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:50:10,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:10,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:50:10,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:50:10,554 INFO L87 Difference]: Start difference. First operand 112077 states and 120274 transitions. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2024-11-28 03:50:13,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:13,881 INFO L93 Difference]: Finished difference Result 236522 states and 253514 transitions. [2024-11-28 03:50:13,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:50:13,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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 563 [2024-11-28 03:50:13,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:13,998 INFO L225 Difference]: With dead ends: 236522 [2024-11-28 03:50:13,998 INFO L226 Difference]: Without dead ends: 125297 [2024-11-28 03:50:14,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:50:14,047 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 807 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 2212 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 2520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 2212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:14,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 239 Invalid, 2520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 2212 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 03:50:14,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125297 states. [2024-11-28 03:50:15,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125297 to 112079. [2024-11-28 03:50:15,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112079 states, 112078 states have (on average 1.0726190688627564) internal successors, (120217), 112078 states have internal predecessors, (120217), 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) [2024-11-28 03:50:15,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112079 states to 112079 states and 120217 transitions. [2024-11-28 03:50:15,502 INFO L78 Accepts]: Start accepts. Automaton has 112079 states and 120217 transitions. Word has length 563 [2024-11-28 03:50:15,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:15,503 INFO L471 AbstractCegarLoop]: Abstraction has 112079 states and 120217 transitions. [2024-11-28 03:50:15,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2024-11-28 03:50:15,503 INFO L276 IsEmpty]: Start isEmpty. Operand 112079 states and 120217 transitions. [2024-11-28 03:50:15,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-28 03:50:15,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:15,515 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:50:15,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:50:15,516 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:15,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:15,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1091037453, now seen corresponding path program 1 times [2024-11-28 03:50:15,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:15,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839319963] [2024-11-28 03:50:15,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:15,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:15,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2024-11-28 03:50:15,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:15,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839319963] [2024-11-28 03:50:15,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839319963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:15,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:15,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:50:15,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97509921] [2024-11-28 03:50:15,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:15,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:50:15,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:15,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:50:15,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:50:15,978 INFO L87 Difference]: Start difference. First operand 112079 states and 120217 transitions. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2024-11-28 03:50:18,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:18,368 INFO L93 Difference]: Finished difference Result 231834 states and 248212 transitions. [2024-11-28 03:50:18,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:50:18,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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 631 [2024-11-28 03:50:18,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:18,458 INFO L225 Difference]: With dead ends: 231834 [2024-11-28 03:50:18,458 INFO L226 Difference]: Without dead ends: 120607 [2024-11-28 03:50:18,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:50:18,491 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 334 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:18,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 146 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:50:18,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120607 states. [2024-11-28 03:50:19,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120607 to 96724. [2024-11-28 03:50:19,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96724 states, 96723 states have (on average 1.0668403585496729) internal successors, (103188), 96723 states have internal predecessors, (103188), 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) [2024-11-28 03:50:20,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96724 states to 96724 states and 103188 transitions. [2024-11-28 03:50:20,052 INFO L78 Accepts]: Start accepts. Automaton has 96724 states and 103188 transitions. Word has length 631 [2024-11-28 03:50:20,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:20,053 INFO L471 AbstractCegarLoop]: Abstraction has 96724 states and 103188 transitions. [2024-11-28 03:50:20,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2024-11-28 03:50:20,053 INFO L276 IsEmpty]: Start isEmpty. Operand 96724 states and 103188 transitions. [2024-11-28 03:50:20,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2024-11-28 03:50:20,065 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:20,065 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:20,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:50:20,066 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:20,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:20,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1017374823, now seen corresponding path program 1 times [2024-11-28 03:50:20,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:20,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938375075] [2024-11-28 03:50:20,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:20,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:20,561 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2024-11-28 03:50:20,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:20,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938375075] [2024-11-28 03:50:20,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938375075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:20,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:20,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:50:20,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222544143] [2024-11-28 03:50:20,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:20,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:50:20,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:20,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:50:20,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:50:20,563 INFO L87 Difference]: Start difference. First operand 96724 states and 103188 transitions. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2024-11-28 03:50:23,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:23,124 INFO L93 Difference]: Finished difference Result 203675 states and 217387 transitions. [2024-11-28 03:50:23,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:50:23,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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 639 [2024-11-28 03:50:23,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:23,219 INFO L225 Difference]: With dead ends: 203675 [2024-11-28 03:50:23,219 INFO L226 Difference]: Without dead ends: 107376 [2024-11-28 03:50:23,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:50:23,261 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 501 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:23,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 232 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:50:23,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107376 states. [2024-11-28 03:50:24,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107376 to 104378. [2024-11-28 03:50:24,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104378 states, 104377 states have (on average 1.064899355221936) internal successors, (111151), 104377 states have internal predecessors, (111151), 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) [2024-11-28 03:50:24,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104378 states to 104378 states and 111151 transitions. [2024-11-28 03:50:24,971 INFO L78 Accepts]: Start accepts. Automaton has 104378 states and 111151 transitions. Word has length 639 [2024-11-28 03:50:24,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:24,971 INFO L471 AbstractCegarLoop]: Abstraction has 104378 states and 111151 transitions. [2024-11-28 03:50:24,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2024-11-28 03:50:24,972 INFO L276 IsEmpty]: Start isEmpty. Operand 104378 states and 111151 transitions. [2024-11-28 03:50:24,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2024-11-28 03:50:24,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:24,999 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:50:24,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:50:25,000 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:25,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:25,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1659470826, now seen corresponding path program 1 times [2024-11-28 03:50:25,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:25,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273862387] [2024-11-28 03:50:25,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:25,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:26,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 777 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-28 03:50:26,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:26,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273862387] [2024-11-28 03:50:26,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273862387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:26,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:26,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:50:26,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989912980] [2024-11-28 03:50:26,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:26,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:50:26,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:26,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:50:26,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:50:26,042 INFO L87 Difference]: Start difference. First operand 104378 states and 111151 transitions. Second operand has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2024-11-28 03:50:30,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:30,049 INFO L93 Difference]: Finished difference Result 233456 states and 248632 transitions. [2024-11-28 03:50:30,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:50:30,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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 658 [2024-11-28 03:50:30,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:30,154 INFO L225 Difference]: With dead ends: 233456 [2024-11-28 03:50:30,154 INFO L226 Difference]: Without dead ends: 129080 [2024-11-28 03:50:30,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:50:30,188 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 617 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 2728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:30,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 202 Invalid, 2728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 2301 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 03:50:30,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129080 states. [2024-11-28 03:50:31,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129080 to 124394. [2024-11-28 03:50:31,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124394 states, 124393 states have (on average 1.0623748924778726) internal successors, (132152), 124393 states have internal predecessors, (132152), 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) [2024-11-28 03:50:32,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124394 states to 124394 states and 132152 transitions. [2024-11-28 03:50:32,020 INFO L78 Accepts]: Start accepts. Automaton has 124394 states and 132152 transitions. Word has length 658 [2024-11-28 03:50:32,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:32,020 INFO L471 AbstractCegarLoop]: Abstraction has 124394 states and 132152 transitions. [2024-11-28 03:50:32,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2024-11-28 03:50:32,021 INFO L276 IsEmpty]: Start isEmpty. Operand 124394 states and 132152 transitions. [2024-11-28 03:50:32,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2024-11-28 03:50:32,032 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:32,032 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:50:32,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:50:32,032 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:32,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:32,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1532085932, now seen corresponding path program 1 times [2024-11-28 03:50:32,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:32,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058885945] [2024-11-28 03:50:32,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:32,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:32,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1026 backedges. 787 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-28 03:50:32,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:32,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058885945] [2024-11-28 03:50:32,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058885945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:32,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:32,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:50:32,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898871829] [2024-11-28 03:50:32,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:32,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:50:32,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:32,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:50:32,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:50:32,685 INFO L87 Difference]: Start difference. First operand 124394 states and 132152 transitions. Second operand has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2024-11-28 03:50:36,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:36,807 INFO L93 Difference]: Finished difference Result 269662 states and 286625 transitions. [2024-11-28 03:50:36,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:50:36,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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 663 [2024-11-28 03:50:36,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:36,960 INFO L225 Difference]: With dead ends: 269662 [2024-11-28 03:50:36,960 INFO L226 Difference]: Without dead ends: 145270 [2024-11-28 03:50:37,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:50:37,030 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 607 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 2268 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 2705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 2268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:37,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 172 Invalid, 2705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 2268 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-28 03:50:37,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145270 states. [2024-11-28 03:50:38,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145270 to 115888. [2024-11-28 03:50:38,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115888 states, 115887 states have (on average 1.0633634488769232) internal successors, (123230), 115887 states have internal predecessors, (123230), 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) [2024-11-28 03:50:38,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115888 states to 115888 states and 123230 transitions. [2024-11-28 03:50:38,910 INFO L78 Accepts]: Start accepts. Automaton has 115888 states and 123230 transitions. Word has length 663 [2024-11-28 03:50:38,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:38,911 INFO L471 AbstractCegarLoop]: Abstraction has 115888 states and 123230 transitions. [2024-11-28 03:50:38,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2024-11-28 03:50:38,911 INFO L276 IsEmpty]: Start isEmpty. Operand 115888 states and 123230 transitions. [2024-11-28 03:50:38,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2024-11-28 03:50:38,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:38,924 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:50:38,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:50:38,924 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:38,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:38,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1260662869, now seen corresponding path program 1 times [2024-11-28 03:50:38,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:38,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012838208] [2024-11-28 03:50:38,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:38,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:39,650 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-28 03:50:39,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:39,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012838208] [2024-11-28 03:50:39,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012838208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:39,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:39,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:50:39,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005765460] [2024-11-28 03:50:39,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:39,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:50:39,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:39,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:50:39,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:50:39,653 INFO L87 Difference]: Start difference. First operand 115888 states and 123230 transitions. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 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) [2024-11-28 03:50:42,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:42,024 INFO L93 Difference]: Finished difference Result 242849 states and 258102 transitions. [2024-11-28 03:50:42,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:50:42,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 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 667 [2024-11-28 03:50:42,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:42,141 INFO L225 Difference]: With dead ends: 242849 [2024-11-28 03:50:42,141 INFO L226 Difference]: Without dead ends: 127388 [2024-11-28 03:50:42,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:50:42,194 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 406 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:42,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 304 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:50:42,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127388 states. [2024-11-28 03:50:44,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127388 to 121841. [2024-11-28 03:50:44,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121841 states, 121840 states have (on average 1.0585604070912673) internal successors, (128975), 121840 states have internal predecessors, (128975), 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) [2024-11-28 03:50:44,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121841 states to 121841 states and 128975 transitions. [2024-11-28 03:50:44,272 INFO L78 Accepts]: Start accepts. Automaton has 121841 states and 128975 transitions. Word has length 667 [2024-11-28 03:50:44,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:44,273 INFO L471 AbstractCegarLoop]: Abstraction has 121841 states and 128975 transitions. [2024-11-28 03:50:44,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 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) [2024-11-28 03:50:44,273 INFO L276 IsEmpty]: Start isEmpty. Operand 121841 states and 128975 transitions. [2024-11-28 03:50:44,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2024-11-28 03:50:44,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:44,283 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:50:44,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:50:44,284 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:44,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:44,284 INFO L85 PathProgramCache]: Analyzing trace with hash 994453123, now seen corresponding path program 1 times [2024-11-28 03:50:44,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:44,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200261597] [2024-11-28 03:50:44,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:44,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:44,885 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 763 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 03:50:44,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:44,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200261597] [2024-11-28 03:50:44,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200261597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:44,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:44,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:50:44,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434221943] [2024-11-28 03:50:44,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:44,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:50:44,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:44,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:50:44,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:50:44,888 INFO L87 Difference]: Start difference. First operand 121841 states and 128975 transitions. Second operand has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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)