./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.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_e4f0d1d5-7a35-47df-8535-feae98de2f99/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f0d1d5-7a35-47df-8535-feae98de2f99/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_e4f0d1d5-7a35-47df-8535-feae98de2f99/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f0d1d5-7a35-47df-8535-feae98de2f99/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f0d1d5-7a35-47df-8535-feae98de2f99/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_e4f0d1d5-7a35-47df-8535-feae98de2f99/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 9260884558ccc913fea23720ea19c1107cd16edf25af23049028c38b098feff1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:29:16,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:29:16,581 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f0d1d5-7a35-47df-8535-feae98de2f99/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:29:16,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:29:16,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:29:16,629 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:29:16,631 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:29:16,631 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:29:16,631 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:29:16,632 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:29:16,633 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:29:16,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:29:16,633 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:29:16,633 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:29:16,633 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:29:16,634 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:29:16,634 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:29:16,634 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:29:16,634 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:29:16,634 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:29:16,634 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:29:16,634 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:29:16,634 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:29:16,634 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:29:16,634 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:29:16,634 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:29:16,635 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:29:16,635 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:29:16,635 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:29:16,635 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:16,635 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:29:16,635 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:29:16,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:16,636 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:29:16,636 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:16,636 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:29:16,636 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:29:16,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:16,637 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:29:16,637 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:29:16,637 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:29:16,637 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:29:16,637 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:29:16,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:29:16,637 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:29:16,637 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:29:16,638 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:29:16,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:29:16,638 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_e4f0d1d5-7a35-47df-8535-feae98de2f99/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 -> 9260884558ccc913fea23720ea19c1107cd16edf25af23049028c38b098feff1 [2024-11-28 04:29:16,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:29:16,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:29:16,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:29:16,913 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:29:16,913 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:29:16,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f0d1d5-7a35-47df-8535-feae98de2f99/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-28 04:29:19,893 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f0d1d5-7a35-47df-8535-feae98de2f99/bin/uautomizer-verify-aQ6SnzHsRB/data/356de12c7/b4ed1c210e7b4b2e9b42265fa8eed473/FLAG671b87131 [2024-11-28 04:29:20,351 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:29:20,357 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f0d1d5-7a35-47df-8535-feae98de2f99/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-28 04:29:20,374 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f0d1d5-7a35-47df-8535-feae98de2f99/bin/uautomizer-verify-aQ6SnzHsRB/data/356de12c7/b4ed1c210e7b4b2e9b42265fa8eed473/FLAG671b87131 [2024-11-28 04:29:20,395 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f0d1d5-7a35-47df-8535-feae98de2f99/bin/uautomizer-verify-aQ6SnzHsRB/data/356de12c7/b4ed1c210e7b4b2e9b42265fa8eed473 [2024-11-28 04:29:20,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:29:20,399 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:29:20,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:20,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:29:20,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:29:20,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:20" (1/1) ... [2024-11-28 04:29:20,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb0e0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:20, skipping insertion in model container [2024-11-28 04:29:20,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:20" (1/1) ... [2024-11-28 04:29:20,487 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:29:21,020 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_e4f0d1d5-7a35-47df-8535-feae98de2f99/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[15864,15877] [2024-11-28 04:29:21,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:21,216 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:29:21,369 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_e4f0d1d5-7a35-47df-8535-feae98de2f99/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[15864,15877] [2024-11-28 04:29:21,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:21,447 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:29:21,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21 WrapperNode [2024-11-28 04:29:21,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:21,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:21,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:29:21,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:29:21,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21" (1/1) ... [2024-11-28 04:29:21,489 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21" (1/1) ... [2024-11-28 04:29:21,555 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1376 [2024-11-28 04:29:21,555 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:21,556 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:29:21,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:29:21,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:29:21,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21" (1/1) ... [2024-11-28 04:29:21,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21" (1/1) ... [2024-11-28 04:29:21,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21" (1/1) ... [2024-11-28 04:29:21,604 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:29:21,604 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21" (1/1) ... [2024-11-28 04:29:21,604 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21" (1/1) ... [2024-11-28 04:29:21,621 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21" (1/1) ... [2024-11-28 04:29:21,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21" (1/1) ... [2024-11-28 04:29:21,633 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21" (1/1) ... [2024-11-28 04:29:21,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21" (1/1) ... [2024-11-28 04:29:21,642 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21" (1/1) ... [2024-11-28 04:29:21,648 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:29:21,649 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:29:21,649 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:29:21,649 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:29:21,651 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21" (1/1) ... [2024-11-28 04:29:21,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:21,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f0d1d5-7a35-47df-8535-feae98de2f99/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:21,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f0d1d5-7a35-47df-8535-feae98de2f99/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:29:21,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f0d1d5-7a35-47df-8535-feae98de2f99/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:29:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:29:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:29:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:29:21,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:29:21,925 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:29:21,928 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:29:23,628 INFO L? ?]: Removed 90 outVars from TransFormulas that were not future-live. [2024-11-28 04:29:23,628 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:29:23,656 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:29:23,656 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:29:23,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:23 BoogieIcfgContainer [2024-11-28 04:29:23,656 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:29:23,661 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:29:23,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:29:23,676 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:29:23,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:29:20" (1/3) ... [2024-11-28 04:29:23,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e994304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:29:23, skipping insertion in model container [2024-11-28 04:29:23,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:21" (2/3) ... [2024-11-28 04:29:23,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e994304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:29:23, skipping insertion in model container [2024-11-28 04:29:23,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:23" (3/3) ... [2024-11-28 04:29:23,679 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-28 04:29:23,695 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:29:23,699 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c that has 1 procedures, 344 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 04:29:23,801 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:29:23,818 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;@53b7eb8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:29:23,818 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:29:23,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 344 states, 342 states have (on average 1.7690058479532165) internal successors, (605), 343 states have internal predecessors, (605), 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 04:29:23,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 04:29:23,840 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:23,840 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:23,841 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:23,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:23,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1491324598, now seen corresponding path program 1 times [2024-11-28 04:29:23,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:23,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152574113] [2024-11-28 04:29:23,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:23,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:24,700 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 04:29:24,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:24,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152574113] [2024-11-28 04:29:24,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152574113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:24,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:24,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:24,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529397023] [2024-11-28 04:29:24,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:24,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:24,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:24,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:24,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:24,745 INFO L87 Difference]: Start difference. First operand has 344 states, 342 states have (on average 1.7690058479532165) internal successors, (605), 343 states have internal predecessors, (605), 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 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 04:29:24,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:24,940 INFO L93 Difference]: Finished difference Result 702 states and 1220 transitions. [2024-11-28 04:29:24,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:24,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 155 [2024-11-28 04:29:24,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:24,955 INFO L225 Difference]: With dead ends: 702 [2024-11-28 04:29:24,955 INFO L226 Difference]: Without dead ends: 565 [2024-11-28 04:29:24,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:24,961 INFO L435 NwaCegarLoop]: 574 mSDtfsCounter, 418 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:24,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1007 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:24,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-28 04:29:25,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 563. [2024-11-28 04:29:25,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 562 states have (on average 1.498220640569395) internal successors, (842), 562 states have internal predecessors, (842), 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 04:29:25,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 842 transitions. [2024-11-28 04:29:25,034 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 842 transitions. Word has length 155 [2024-11-28 04:29:25,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:25,035 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 842 transitions. [2024-11-28 04:29:25,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 04:29:25,035 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 842 transitions. [2024-11-28 04:29:25,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 04:29:25,038 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:25,039 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:25,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:29:25,039 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:25,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:25,044 INFO L85 PathProgramCache]: Analyzing trace with hash -599043347, now seen corresponding path program 1 times [2024-11-28 04:29:25,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:25,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714294771] [2024-11-28 04:29:25,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:25,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:26,105 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 04:29:26,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:26,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714294771] [2024-11-28 04:29:26,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714294771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:26,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:26,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:26,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798536545] [2024-11-28 04:29:26,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:26,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:26,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:26,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:26,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:26,109 INFO L87 Difference]: Start difference. First operand 563 states and 842 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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 04:29:26,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:26,364 INFO L93 Difference]: Finished difference Result 2720 states and 4051 transitions. [2024-11-28 04:29:26,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:26,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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 155 [2024-11-28 04:29:26,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:26,374 INFO L225 Difference]: With dead ends: 2720 [2024-11-28 04:29:26,375 INFO L226 Difference]: Without dead ends: 2166 [2024-11-28 04:29:26,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:26,379 INFO L435 NwaCegarLoop]: 787 mSDtfsCounter, 1518 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 2098 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:26,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 2098 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:29:26,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2024-11-28 04:29:26,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 1087. [2024-11-28 04:29:26,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 1086 states have (on average 1.4806629834254144) internal successors, (1608), 1086 states have internal predecessors, (1608), 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 04:29:26,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1608 transitions. [2024-11-28 04:29:26,447 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1608 transitions. Word has length 155 [2024-11-28 04:29:26,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:26,447 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1608 transitions. [2024-11-28 04:29:26,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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 04:29:26,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1608 transitions. [2024-11-28 04:29:26,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 04:29:26,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:26,457 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:26,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:29:26,458 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:26,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:26,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1611010681, now seen corresponding path program 1 times [2024-11-28 04:29:26,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:26,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445388312] [2024-11-28 04:29:26,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:26,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:26,629 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 04:29:26,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:26,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445388312] [2024-11-28 04:29:26,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445388312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:26,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:26,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:26,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721799825] [2024-11-28 04:29:26,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:26,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:26,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:26,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:26,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:26,632 INFO L87 Difference]: Start difference. First operand 1087 states and 1608 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 04:29:26,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:26,685 INFO L93 Difference]: Finished difference Result 2148 states and 3173 transitions. [2024-11-28 04:29:26,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:26,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 156 [2024-11-28 04:29:26,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:26,690 INFO L225 Difference]: With dead ends: 2148 [2024-11-28 04:29:26,691 INFO L226 Difference]: Without dead ends: 1089 [2024-11-28 04:29:26,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:26,694 INFO L435 NwaCegarLoop]: 504 mSDtfsCounter, 0 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:26,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1002 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:26,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-11-28 04:29:26,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1089. [2024-11-28 04:29:26,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 1088 states have (on average 1.4797794117647058) internal successors, (1610), 1088 states have internal predecessors, (1610), 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 04:29:26,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1610 transitions. [2024-11-28 04:29:26,751 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1610 transitions. Word has length 156 [2024-11-28 04:29:26,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:26,751 INFO L471 AbstractCegarLoop]: Abstraction has 1089 states and 1610 transitions. [2024-11-28 04:29:26,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 04:29:26,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1610 transitions. [2024-11-28 04:29:26,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 04:29:26,755 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:26,756 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:26,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:29:26,756 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:26,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:26,757 INFO L85 PathProgramCache]: Analyzing trace with hash -580833396, now seen corresponding path program 1 times [2024-11-28 04:29:26,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:26,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935725585] [2024-11-28 04:29:26,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:26,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:27,512 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 04:29:27,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:27,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935725585] [2024-11-28 04:29:27,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935725585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:27,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:27,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:27,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958494414] [2024-11-28 04:29:27,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:27,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:27,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:27,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:27,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:27,514 INFO L87 Difference]: Start difference. First operand 1089 states and 1610 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 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 04:29:27,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:27,572 INFO L93 Difference]: Finished difference Result 2168 states and 3206 transitions. [2024-11-28 04:29:27,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:29:27,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 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 04:29:27,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:27,579 INFO L225 Difference]: With dead ends: 2168 [2024-11-28 04:29:27,579 INFO L226 Difference]: Without dead ends: 1087 [2024-11-28 04:29:27,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:27,583 INFO L435 NwaCegarLoop]: 545 mSDtfsCounter, 24 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:27,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1584 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:27,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-11-28 04:29:27,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1087. [2024-11-28 04:29:27,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 1086 states have (on average 1.4788213627992635) internal successors, (1606), 1086 states have internal predecessors, (1606), 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 04:29:27,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1606 transitions. [2024-11-28 04:29:27,626 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1606 transitions. Word has length 157 [2024-11-28 04:29:27,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:27,627 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1606 transitions. [2024-11-28 04:29:27,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 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 04:29:27,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1606 transitions. [2024-11-28 04:29:27,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 04:29:27,630 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:27,630 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:27,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:29:27,630 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:27,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:27,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1083671628, now seen corresponding path program 1 times [2024-11-28 04:29:27,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:27,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098064183] [2024-11-28 04:29:27,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:27,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:27,824 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 04:29:27,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:27,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098064183] [2024-11-28 04:29:27,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098064183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:27,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:27,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:27,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364833145] [2024-11-28 04:29:27,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:27,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:27,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:27,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:27,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:27,827 INFO L87 Difference]: Start difference. First operand 1087 states and 1606 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 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 04:29:27,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:27,917 INFO L93 Difference]: Finished difference Result 2507 states and 3714 transitions. [2024-11-28 04:29:27,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:27,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 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 04:29:27,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:27,925 INFO L225 Difference]: With dead ends: 2507 [2024-11-28 04:29:27,925 INFO L226 Difference]: Without dead ends: 1611 [2024-11-28 04:29:27,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:27,928 INFO L435 NwaCegarLoop]: 946 mSDtfsCounter, 428 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:27,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1394 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:27,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2024-11-28 04:29:27,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1609. [2024-11-28 04:29:27,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1608 states have (on average 1.4601990049751243) internal successors, (2348), 1608 states have internal predecessors, (2348), 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 04:29:27,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2348 transitions. [2024-11-28 04:29:27,992 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2348 transitions. Word has length 157 [2024-11-28 04:29:27,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:27,992 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2348 transitions. [2024-11-28 04:29:27,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 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 04:29:27,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2348 transitions. [2024-11-28 04:29:28,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:29:28,002 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:28,003 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:28,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:29:28,003 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:28,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:28,004 INFO L85 PathProgramCache]: Analyzing trace with hash 752375599, now seen corresponding path program 1 times [2024-11-28 04:29:28,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:28,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938176174] [2024-11-28 04:29:28,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:28,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:28,157 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 04:29:28,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:28,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938176174] [2024-11-28 04:29:28,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938176174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:28,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:28,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:28,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264099892] [2024-11-28 04:29:28,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:28,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:28,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:28,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:28,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:28,159 INFO L87 Difference]: Start difference. First operand 1609 states and 2348 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 04:29:28,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:28,248 INFO L93 Difference]: Finished difference Result 3806 states and 5670 transitions. [2024-11-28 04:29:28,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:28,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 159 [2024-11-28 04:29:28,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:28,258 INFO L225 Difference]: With dead ends: 3806 [2024-11-28 04:29:28,258 INFO L226 Difference]: Without dead ends: 2379 [2024-11-28 04:29:28,260 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 04:29:28,261 INFO L435 NwaCegarLoop]: 705 mSDtfsCounter, 315 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:28,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 1075 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:28,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2024-11-28 04:29:28,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 2051. [2024-11-28 04:29:28,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2051 states, 2050 states have (on average 1.4970731707317073) internal successors, (3069), 2050 states have internal predecessors, (3069), 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 04:29:28,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2051 states to 2051 states and 3069 transitions. [2024-11-28 04:29:28,344 INFO L78 Accepts]: Start accepts. Automaton has 2051 states and 3069 transitions. Word has length 159 [2024-11-28 04:29:28,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:28,345 INFO L471 AbstractCegarLoop]: Abstraction has 2051 states and 3069 transitions. [2024-11-28 04:29:28,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 04:29:28,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2051 states and 3069 transitions. [2024-11-28 04:29:28,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-28 04:29:28,349 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:28,349 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:28,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:29:28,349 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:28,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:28,350 INFO L85 PathProgramCache]: Analyzing trace with hash -2060170337, now seen corresponding path program 1 times [2024-11-28 04:29:28,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:28,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101164953] [2024-11-28 04:29:28,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:28,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:28,494 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 04:29:28,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:28,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101164953] [2024-11-28 04:29:28,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101164953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:28,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:28,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:28,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289218378] [2024-11-28 04:29:28,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:28,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:28,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:28,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:28,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:28,497 INFO L87 Difference]: Start difference. First operand 2051 states and 3069 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 04:29:28,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:28,588 INFO L93 Difference]: Finished difference Result 4930 states and 7515 transitions. [2024-11-28 04:29:28,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:28,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 161 [2024-11-28 04:29:28,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:28,600 INFO L225 Difference]: With dead ends: 4930 [2024-11-28 04:29:28,600 INFO L226 Difference]: Without dead ends: 3145 [2024-11-28 04:29:28,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:28,603 INFO L435 NwaCegarLoop]: 687 mSDtfsCounter, 310 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:28,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1035 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:28,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2024-11-28 04:29:28,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 2829. [2024-11-28 04:29:28,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2829 states, 2828 states have (on average 1.5307637906647809) internal successors, (4329), 2828 states have internal predecessors, (4329), 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 04:29:28,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 4329 transitions. [2024-11-28 04:29:28,699 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 4329 transitions. Word has length 161 [2024-11-28 04:29:28,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:28,700 INFO L471 AbstractCegarLoop]: Abstraction has 2829 states and 4329 transitions. [2024-11-28 04:29:28,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 04:29:28,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 4329 transitions. [2024-11-28 04:29:28,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 04:29:28,703 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:28,703 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:28,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:29:28,704 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:28,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:28,704 INFO L85 PathProgramCache]: Analyzing trace with hash -835873379, now seen corresponding path program 1 times [2024-11-28 04:29:28,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:28,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237225389] [2024-11-28 04:29:28,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:28,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:28,975 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 04:29:28,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:28,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237225389] [2024-11-28 04:29:28,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237225389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:28,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:28,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:28,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626813474] [2024-11-28 04:29:28,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:28,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:28,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:28,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:28,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:28,977 INFO L87 Difference]: Start difference. First operand 2829 states and 4329 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 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 04:29:29,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:29,246 INFO L93 Difference]: Finished difference Result 5482 states and 8434 transitions. [2024-11-28 04:29:29,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:29,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 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 162 [2024-11-28 04:29:29,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:29,257 INFO L225 Difference]: With dead ends: 5482 [2024-11-28 04:29:29,257 INFO L226 Difference]: Without dead ends: 2829 [2024-11-28 04:29:29,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:29:29,260 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 1316 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:29,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1316 Valid, 480 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:29:29,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2024-11-28 04:29:29,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 2829. [2024-11-28 04:29:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2829 states, 2828 states have (on average 1.5183875530410185) internal successors, (4294), 2828 states have internal predecessors, (4294), 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 04:29:29,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 4294 transitions. [2024-11-28 04:29:29,366 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 4294 transitions. Word has length 162 [2024-11-28 04:29:29,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:29,366 INFO L471 AbstractCegarLoop]: Abstraction has 2829 states and 4294 transitions. [2024-11-28 04:29:29,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 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 04:29:29,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 4294 transitions. [2024-11-28 04:29:29,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 04:29:29,370 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:29,370 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:29,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:29:29,371 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:29,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:29,371 INFO L85 PathProgramCache]: Analyzing trace with hash -305345160, now seen corresponding path program 1 times [2024-11-28 04:29:29,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:29,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506124116] [2024-11-28 04:29:29,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:29,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:30,037 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 04:29:30,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:30,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506124116] [2024-11-28 04:29:30,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506124116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:30,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:30,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:30,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074993884] [2024-11-28 04:29:30,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:30,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:30,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:30,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:30,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:30,043 INFO L87 Difference]: Start difference. First operand 2829 states and 4294 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 04:29:30,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:30,266 INFO L93 Difference]: Finished difference Result 7157 states and 11133 transitions. [2024-11-28 04:29:30,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:29:30,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 162 [2024-11-28 04:29:30,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:30,285 INFO L225 Difference]: With dead ends: 7157 [2024-11-28 04:29:30,285 INFO L226 Difference]: Without dead ends: 5281 [2024-11-28 04:29:30,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:30,289 INFO L435 NwaCegarLoop]: 461 mSDtfsCounter, 628 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:30,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 965 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:29:30,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5281 states. [2024-11-28 04:29:30,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5281 to 5279. [2024-11-28 04:29:30,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 1.528419856006063) internal successors, (8067), 5278 states have internal predecessors, (8067), 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 04:29:30,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 8067 transitions. [2024-11-28 04:29:30,437 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 8067 transitions. Word has length 162 [2024-11-28 04:29:30,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:30,438 INFO L471 AbstractCegarLoop]: Abstraction has 5279 states and 8067 transitions. [2024-11-28 04:29:30,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 04:29:30,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 8067 transitions. [2024-11-28 04:29:30,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 04:29:30,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:30,443 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:30,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:29:30,443 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:30,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:30,443 INFO L85 PathProgramCache]: Analyzing trace with hash 116042600, now seen corresponding path program 1 times [2024-11-28 04:29:30,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:30,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909094478] [2024-11-28 04:29:30,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:30,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:31,001 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 04:29:31,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:31,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909094478] [2024-11-28 04:29:31,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909094478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:31,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:31,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:31,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561920916] [2024-11-28 04:29:31,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:31,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:31,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:31,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:31,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:31,002 INFO L87 Difference]: Start difference. First operand 5279 states and 8067 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 04:29:31,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:31,203 INFO L93 Difference]: Finished difference Result 13802 states and 21105 transitions. [2024-11-28 04:29:31,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:31,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 162 [2024-11-28 04:29:31,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:31,243 INFO L225 Difference]: With dead ends: 13802 [2024-11-28 04:29:31,243 INFO L226 Difference]: Without dead ends: 8542 [2024-11-28 04:29:31,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:31,250 INFO L435 NwaCegarLoop]: 851 mSDtfsCounter, 424 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:31,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 2120 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:31,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8542 states. [2024-11-28 04:29:31,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8542 to 8540. [2024-11-28 04:29:31,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8540 states, 8539 states have (on average 1.5158683686614358) internal successors, (12944), 8539 states have internal predecessors, (12944), 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 04:29:31,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8540 states to 8540 states and 12944 transitions. [2024-11-28 04:29:31,492 INFO L78 Accepts]: Start accepts. Automaton has 8540 states and 12944 transitions. Word has length 162 [2024-11-28 04:29:31,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:31,493 INFO L471 AbstractCegarLoop]: Abstraction has 8540 states and 12944 transitions. [2024-11-28 04:29:31,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 04:29:31,493 INFO L276 IsEmpty]: Start isEmpty. Operand 8540 states and 12944 transitions. [2024-11-28 04:29:31,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 04:29:31,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:31,499 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:31,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:29:31,500 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:31,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:31,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1080247373, now seen corresponding path program 1 times [2024-11-28 04:29:31,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:31,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013864303] [2024-11-28 04:29:31,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:31,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:31,661 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 04:29:31,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:31,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013864303] [2024-11-28 04:29:31,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013864303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:31,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:31,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:31,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844902741] [2024-11-28 04:29:31,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:31,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:31,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:31,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:31,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:31,664 INFO L87 Difference]: Start difference. First operand 8540 states and 12944 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 04:29:31,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:31,845 INFO L93 Difference]: Finished difference Result 24494 states and 37176 transitions. [2024-11-28 04:29:31,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:31,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 164 [2024-11-28 04:29:31,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:31,886 INFO L225 Difference]: With dead ends: 24494 [2024-11-28 04:29:31,886 INFO L226 Difference]: Without dead ends: 16338 [2024-11-28 04:29:31,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:31,898 INFO L435 NwaCegarLoop]: 908 mSDtfsCounter, 413 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:31,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 1352 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:31,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16338 states. [2024-11-28 04:29:32,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16338 to 16336. [2024-11-28 04:29:32,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16336 states, 16335 states have (on average 1.5021732476277931) internal successors, (24538), 16335 states have internal predecessors, (24538), 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 04:29:32,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16336 states to 16336 states and 24538 transitions. [2024-11-28 04:29:32,415 INFO L78 Accepts]: Start accepts. Automaton has 16336 states and 24538 transitions. Word has length 164 [2024-11-28 04:29:32,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:32,415 INFO L471 AbstractCegarLoop]: Abstraction has 16336 states and 24538 transitions. [2024-11-28 04:29:32,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 04:29:32,415 INFO L276 IsEmpty]: Start isEmpty. Operand 16336 states and 24538 transitions. [2024-11-28 04:29:32,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 04:29:32,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:32,428 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:32,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:29:32,428 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:32,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:32,428 INFO L85 PathProgramCache]: Analyzing trace with hash 2069360272, now seen corresponding path program 1 times [2024-11-28 04:29:32,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:32,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206300751] [2024-11-28 04:29:32,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:32,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:33,039 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 04:29:33,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:33,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206300751] [2024-11-28 04:29:33,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206300751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:33,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:33,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:33,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530185787] [2024-11-28 04:29:33,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:33,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:33,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:33,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:33,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:33,041 INFO L87 Difference]: Start difference. First operand 16336 states and 24538 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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 04:29:33,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:33,448 INFO L93 Difference]: Finished difference Result 79009 states and 118370 transitions. [2024-11-28 04:29:33,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:33,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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 164 [2024-11-28 04:29:33,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:33,596 INFO L225 Difference]: With dead ends: 79009 [2024-11-28 04:29:33,597 INFO L226 Difference]: Without dead ends: 62720 [2024-11-28 04:29:33,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:33,722 INFO L435 NwaCegarLoop]: 781 mSDtfsCounter, 1410 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1410 SdHoareTripleChecker+Valid, 2025 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:33,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1410 Valid, 2025 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:33,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62720 states. [2024-11-28 04:29:34,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62720 to 31410. [2024-11-28 04:29:34,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31410 states, 31409 states have (on average 1.4861663854309275) internal successors, (46679), 31409 states have internal predecessors, (46679), 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 04:29:34,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31410 states to 31410 states and 46679 transitions. [2024-11-28 04:29:34,951 INFO L78 Accepts]: Start accepts. Automaton has 31410 states and 46679 transitions. Word has length 164 [2024-11-28 04:29:34,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:34,951 INFO L471 AbstractCegarLoop]: Abstraction has 31410 states and 46679 transitions. [2024-11-28 04:29:34,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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 04:29:34,952 INFO L276 IsEmpty]: Start isEmpty. Operand 31410 states and 46679 transitions. [2024-11-28 04:29:34,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 04:29:34,973 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:34,974 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:34,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:29:34,974 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:34,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:34,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1472750474, now seen corresponding path program 1 times [2024-11-28 04:29:34,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:34,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404960568] [2024-11-28 04:29:34,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:34,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:35,119 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 04:29:35,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:35,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404960568] [2024-11-28 04:29:35,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404960568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:35,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:35,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:35,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23698079] [2024-11-28 04:29:35,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:35,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:35,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:35,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:35,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:35,122 INFO L87 Difference]: Start difference. First operand 31410 states and 46679 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 04:29:35,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:35,333 INFO L93 Difference]: Finished difference Result 62708 states and 93208 transitions. [2024-11-28 04:29:35,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:35,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 165 [2024-11-28 04:29:35,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:35,409 INFO L225 Difference]: With dead ends: 62708 [2024-11-28 04:29:35,409 INFO L226 Difference]: Without dead ends: 31418 [2024-11-28 04:29:35,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:35,446 INFO L435 NwaCegarLoop]: 491 mSDtfsCounter, 0 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:35,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 976 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:35,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31418 states. [2024-11-28 04:29:36,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31418 to 31418. [2024-11-28 04:29:36,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31418 states, 31417 states have (on average 1.48604258840755) internal successors, (46687), 31417 states have internal predecessors, (46687), 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 04:29:36,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31418 states to 31418 states and 46687 transitions. [2024-11-28 04:29:36,367 INFO L78 Accepts]: Start accepts. Automaton has 31418 states and 46687 transitions. Word has length 165 [2024-11-28 04:29:36,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:36,367 INFO L471 AbstractCegarLoop]: Abstraction has 31418 states and 46687 transitions. [2024-11-28 04:29:36,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 04:29:36,368 INFO L276 IsEmpty]: Start isEmpty. Operand 31418 states and 46687 transitions. [2024-11-28 04:29:36,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-28 04:29:36,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:36,385 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:36,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:29:36,386 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:36,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:36,386 INFO L85 PathProgramCache]: Analyzing trace with hash -461423411, now seen corresponding path program 1 times [2024-11-28 04:29:36,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:36,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511009628] [2024-11-28 04:29:36,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:36,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:36,531 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 04:29:36,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:36,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511009628] [2024-11-28 04:29:36,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511009628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:36,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:36,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:36,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860970940] [2024-11-28 04:29:36,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:36,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:36,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:36,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:36,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:36,534 INFO L87 Difference]: Start difference. First operand 31418 states and 46687 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 04:29:36,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:36,786 INFO L93 Difference]: Finished difference Result 81951 states and 121433 transitions. [2024-11-28 04:29:36,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:36,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 166 [2024-11-28 04:29:36,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:36,900 INFO L225 Difference]: With dead ends: 81951 [2024-11-28 04:29:36,900 INFO L226 Difference]: Without dead ends: 51423 [2024-11-28 04:29:36,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:36,929 INFO L435 NwaCegarLoop]: 917 mSDtfsCounter, 405 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:36,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1362 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:36,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51423 states. [2024-11-28 04:29:38,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51423 to 51421. [2024-11-28 04:29:38,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51421 states, 51420 states have (on average 1.4614352392065344) internal successors, (75147), 51420 states have internal predecessors, (75147), 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 04:29:38,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51421 states to 51421 states and 75147 transitions. [2024-11-28 04:29:38,429 INFO L78 Accepts]: Start accepts. Automaton has 51421 states and 75147 transitions. Word has length 166 [2024-11-28 04:29:38,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:38,430 INFO L471 AbstractCegarLoop]: Abstraction has 51421 states and 75147 transitions. [2024-11-28 04:29:38,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 04:29:38,430 INFO L276 IsEmpty]: Start isEmpty. Operand 51421 states and 75147 transitions. [2024-11-28 04:29:38,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-28 04:29:38,460 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:38,460 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:38,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:29:38,461 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:38,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:38,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1137474838, now seen corresponding path program 1 times [2024-11-28 04:29:38,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:38,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68329447] [2024-11-28 04:29:38,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:38,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:39,227 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 04:29:39,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:39,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68329447] [2024-11-28 04:29:39,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68329447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:39,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:39,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:39,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946374927] [2024-11-28 04:29:39,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:39,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:39,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:39,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:39,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:39,229 INFO L87 Difference]: Start difference. First operand 51421 states and 75147 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 04:29:39,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:39,698 INFO L93 Difference]: Finished difference Result 95528 states and 139882 transitions. [2024-11-28 04:29:39,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:29:39,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 166 [2024-11-28 04:29:39,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:39,802 INFO L225 Difference]: With dead ends: 95528 [2024-11-28 04:29:39,802 INFO L226 Difference]: Without dead ends: 44909 [2024-11-28 04:29:39,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:39,822 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 15 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:39,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1523 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:39,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44909 states. [2024-11-28 04:29:40,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44909 to 44909. [2024-11-28 04:29:40,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44909 states, 44908 states have (on average 1.4625233811347644) internal successors, (65679), 44908 states have internal predecessors, (65679), 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 04:29:40,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44909 states to 44909 states and 65679 transitions. [2024-11-28 04:29:40,948 INFO L78 Accepts]: Start accepts. Automaton has 44909 states and 65679 transitions. Word has length 166 [2024-11-28 04:29:40,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:40,948 INFO L471 AbstractCegarLoop]: Abstraction has 44909 states and 65679 transitions. [2024-11-28 04:29:40,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 04:29:40,949 INFO L276 IsEmpty]: Start isEmpty. Operand 44909 states and 65679 transitions. [2024-11-28 04:29:40,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-28 04:29:40,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:40,972 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:40,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:29:40,973 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:40,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:40,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1961574928, now seen corresponding path program 1 times [2024-11-28 04:29:40,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:40,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910514252] [2024-11-28 04:29:40,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:40,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:41,082 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 04:29:41,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:41,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910514252] [2024-11-28 04:29:41,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910514252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:41,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:41,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:41,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183708489] [2024-11-28 04:29:41,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:41,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:41,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:41,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:41,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:41,086 INFO L87 Difference]: Start difference. First operand 44909 states and 65679 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 04:29:41,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:41,392 INFO L93 Difference]: Finished difference Result 107331 states and 158651 transitions. [2024-11-28 04:29:41,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:41,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 168 [2024-11-28 04:29:41,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:41,544 INFO L225 Difference]: With dead ends: 107331 [2024-11-28 04:29:41,544 INFO L226 Difference]: Without dead ends: 70583 [2024-11-28 04:29:41,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:41,576 INFO L435 NwaCegarLoop]: 682 mSDtfsCounter, 302 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:41,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 1034 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:41,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70583 states. [2024-11-28 04:29:42,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70583 to 64237. [2024-11-28 04:29:42,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64237 states, 64236 states have (on average 1.4910486331652033) internal successors, (95779), 64236 states have internal predecessors, (95779), 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 04:29:43,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64237 states to 64237 states and 95779 transitions. [2024-11-28 04:29:43,056 INFO L78 Accepts]: Start accepts. Automaton has 64237 states and 95779 transitions. Word has length 168 [2024-11-28 04:29:43,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:43,057 INFO L471 AbstractCegarLoop]: Abstraction has 64237 states and 95779 transitions. [2024-11-28 04:29:43,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 04:29:43,057 INFO L276 IsEmpty]: Start isEmpty. Operand 64237 states and 95779 transitions. [2024-11-28 04:29:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-28 04:29:43,085 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:43,086 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:43,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:29:43,086 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:43,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:43,088 INFO L85 PathProgramCache]: Analyzing trace with hash 634736749, now seen corresponding path program 1 times [2024-11-28 04:29:43,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:43,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624365428] [2024-11-28 04:29:43,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:43,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:43,636 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 04:29:43,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:43,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624365428] [2024-11-28 04:29:43,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624365428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:43,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:43,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:43,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134328398] [2024-11-28 04:29:43,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:43,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:43,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:43,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:43,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:43,640 INFO L87 Difference]: Start difference. First operand 64237 states and 95779 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 04:29:44,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:44,202 INFO L93 Difference]: Finished difference Result 89617 states and 134413 transitions. [2024-11-28 04:29:44,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:29:44,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 171 [2024-11-28 04:29:44,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:44,296 INFO L225 Difference]: With dead ends: 89617 [2024-11-28 04:29:44,296 INFO L226 Difference]: Without dead ends: 64309 [2024-11-28 04:29:44,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:44,327 INFO L435 NwaCegarLoop]: 553 mSDtfsCounter, 100 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:44,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 1572 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:29:44,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64309 states. [2024-11-28 04:29:45,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64309 to 64177. [2024-11-28 04:29:45,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64177 states, 64176 states have (on average 1.4901053353278484) internal successors, (95629), 64176 states have internal predecessors, (95629), 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 04:29:45,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64177 states to 64177 states and 95629 transitions. [2024-11-28 04:29:45,728 INFO L78 Accepts]: Start accepts. Automaton has 64177 states and 95629 transitions. Word has length 171 [2024-11-28 04:29:45,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:45,728 INFO L471 AbstractCegarLoop]: Abstraction has 64177 states and 95629 transitions. [2024-11-28 04:29:45,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 04:29:45,729 INFO L276 IsEmpty]: Start isEmpty. Operand 64177 states and 95629 transitions. [2024-11-28 04:29:45,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-28 04:29:45,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:45,744 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:45,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:29:45,744 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:45,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:45,745 INFO L85 PathProgramCache]: Analyzing trace with hash -188106696, now seen corresponding path program 1 times [2024-11-28 04:29:45,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:45,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899987340] [2024-11-28 04:29:45,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:45,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:46,469 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 04:29:46,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:46,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899987340] [2024-11-28 04:29:46,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899987340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:46,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:46,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:46,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464635249] [2024-11-28 04:29:46,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:46,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:46,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:46,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:46,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:46,470 INFO L87 Difference]: Start difference. First operand 64177 states and 95629 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 04:29:46,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:46,753 INFO L93 Difference]: Finished difference Result 103225 states and 153699 transitions. [2024-11-28 04:29:46,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:29:46,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 171 [2024-11-28 04:29:46,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:46,812 INFO L225 Difference]: With dead ends: 103225 [2024-11-28 04:29:46,812 INFO L226 Difference]: Without dead ends: 53119 [2024-11-28 04:29:46,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:46,842 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 17 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:46,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1520 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:46,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53119 states. [2024-11-28 04:29:48,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53119 to 53119. [2024-11-28 04:29:48,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53119 states, 53118 states have (on average 1.4860311005685456) internal successors, (78935), 53118 states have internal predecessors, (78935), 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 04:29:48,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53119 states to 53119 states and 78935 transitions. [2024-11-28 04:29:48,203 INFO L78 Accepts]: Start accepts. Automaton has 53119 states and 78935 transitions. Word has length 171 [2024-11-28 04:29:48,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:48,203 INFO L471 AbstractCegarLoop]: Abstraction has 53119 states and 78935 transitions. [2024-11-28 04:29:48,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 04:29:48,203 INFO L276 IsEmpty]: Start isEmpty. Operand 53119 states and 78935 transitions. [2024-11-28 04:29:48,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 04:29:48,219 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:48,219 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:48,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:29:48,220 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:48,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:48,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1788729157, now seen corresponding path program 1 times [2024-11-28 04:29:48,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:48,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723241248] [2024-11-28 04:29:48,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:48,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:48,896 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 04:29:48,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:48,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723241248] [2024-11-28 04:29:48,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723241248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:48,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:48,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:48,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404195232] [2024-11-28 04:29:48,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:48,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:48,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:48,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:48,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:48,899 INFO L87 Difference]: Start difference. First operand 53119 states and 78935 transitions. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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 04:29:49,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:49,227 INFO L93 Difference]: Finished difference Result 101641 states and 151176 transitions. [2024-11-28 04:29:49,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:49,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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 176 [2024-11-28 04:29:49,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:49,289 INFO L225 Difference]: With dead ends: 101641 [2024-11-28 04:29:49,289 INFO L226 Difference]: Without dead ends: 48825 [2024-11-28 04:29:49,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:49,321 INFO L435 NwaCegarLoop]: 790 mSDtfsCounter, 413 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:49,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 1976 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:49,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48825 states. [2024-11-28 04:29:50,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48825 to 48783. [2024-11-28 04:29:50,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48783 states, 48782 states have (on average 1.4869419048009511) internal successors, (72536), 48782 states have internal predecessors, (72536), 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 04:29:50,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48783 states to 48783 states and 72536 transitions. [2024-11-28 04:29:50,217 INFO L78 Accepts]: Start accepts. Automaton has 48783 states and 72536 transitions. Word has length 176 [2024-11-28 04:29:50,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:50,217 INFO L471 AbstractCegarLoop]: Abstraction has 48783 states and 72536 transitions. [2024-11-28 04:29:50,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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 04:29:50,217 INFO L276 IsEmpty]: Start isEmpty. Operand 48783 states and 72536 transitions. [2024-11-28 04:29:50,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-28 04:29:50,226 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:50,227 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:50,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:29:50,227 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:50,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:50,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1997915222, now seen corresponding path program 1 times [2024-11-28 04:29:50,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:50,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219782352] [2024-11-28 04:29:50,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:50,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:50,615 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 04:29:50,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:50,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219782352] [2024-11-28 04:29:50,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219782352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:50,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:50,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:50,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545876918] [2024-11-28 04:29:50,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:50,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:50,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:50,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:50,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:50,617 INFO L87 Difference]: Start difference. First operand 48783 states and 72536 transitions. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 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 04:29:51,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:51,235 INFO L93 Difference]: Finished difference Result 146305 states and 217551 transitions. [2024-11-28 04:29:51,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:51,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 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 178 [2024-11-28 04:29:51,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:51,365 INFO L225 Difference]: With dead ends: 146305 [2024-11-28 04:29:51,366 INFO L226 Difference]: Without dead ends: 97677 [2024-11-28 04:29:51,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:51,405 INFO L435 NwaCegarLoop]: 796 mSDtfsCounter, 1312 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:51,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 2050 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:51,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97677 states. [2024-11-28 04:29:52,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97677 to 48885. [2024-11-28 04:29:52,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48885 states, 48884 states have (on average 1.4859463219049178) internal successors, (72639), 48884 states have internal predecessors, (72639), 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 04:29:52,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48885 states to 48885 states and 72639 transitions. [2024-11-28 04:29:52,942 INFO L78 Accepts]: Start accepts. Automaton has 48885 states and 72639 transitions. Word has length 178 [2024-11-28 04:29:52,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:52,943 INFO L471 AbstractCegarLoop]: Abstraction has 48885 states and 72639 transitions. [2024-11-28 04:29:52,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 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 04:29:52,943 INFO L276 IsEmpty]: Start isEmpty. Operand 48885 states and 72639 transitions. [2024-11-28 04:29:52,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-28 04:29:52,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:52,957 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:52,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:29:52,957 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:52,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:52,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1956947492, now seen corresponding path program 1 times [2024-11-28 04:29:52,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:52,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047371794] [2024-11-28 04:29:52,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:52,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:53,076 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 04:29:53,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:53,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047371794] [2024-11-28 04:29:53,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047371794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:53,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:53,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:53,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398794039] [2024-11-28 04:29:53,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:53,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:53,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:53,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:53,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:53,079 INFO L87 Difference]: Start difference. First operand 48885 states and 72639 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 04:29:53,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:53,719 INFO L93 Difference]: Finished difference Result 85175 states and 126631 transitions. [2024-11-28 04:29:53,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:53,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 179 [2024-11-28 04:29:53,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:53,775 INFO L225 Difference]: With dead ends: 85175 [2024-11-28 04:29:53,775 INFO L226 Difference]: Without dead ends: 48895 [2024-11-28 04:29:53,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:53,792 INFO L435 NwaCegarLoop]: 483 mSDtfsCounter, 0 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:53,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 960 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:53,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48895 states. [2024-11-28 04:29:54,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48895 to 48895. [2024-11-28 04:29:54,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48895 states, 48894 states have (on average 1.4858469341841534) internal successors, (72649), 48894 states have internal predecessors, (72649), 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 04:29:54,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48895 states to 48895 states and 72649 transitions. [2024-11-28 04:29:54,817 INFO L78 Accepts]: Start accepts. Automaton has 48895 states and 72649 transitions. Word has length 179 [2024-11-28 04:29:54,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:54,817 INFO L471 AbstractCegarLoop]: Abstraction has 48895 states and 72649 transitions. [2024-11-28 04:29:54,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 04:29:54,817 INFO L276 IsEmpty]: Start isEmpty. Operand 48895 states and 72649 transitions. [2024-11-28 04:29:54,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-28 04:29:54,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:54,823 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:54,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:29:54,824 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:54,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:54,824 INFO L85 PathProgramCache]: Analyzing trace with hash -300864981, now seen corresponding path program 1 times [2024-11-28 04:29:54,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:54,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180340865] [2024-11-28 04:29:54,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:54,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:55,298 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 04:29:55,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:55,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180340865] [2024-11-28 04:29:55,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180340865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:55,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:55,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:55,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428800107] [2024-11-28 04:29:55,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:55,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:55,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:55,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:55,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:55,300 INFO L87 Difference]: Start difference. First operand 48895 states and 72649 transitions. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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 04:29:55,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:55,536 INFO L93 Difference]: Finished difference Result 85610 states and 127107 transitions. [2024-11-28 04:29:55,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:29:55,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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 180 [2024-11-28 04:29:55,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:55,604 INFO L225 Difference]: With dead ends: 85610 [2024-11-28 04:29:55,604 INFO L226 Difference]: Without dead ends: 48885 [2024-11-28 04:29:55,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:55,633 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 3 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:55,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1474 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:55,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48885 states. [2024-11-28 04:29:56,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48885 to 48885. [2024-11-28 04:29:56,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48885 states, 48884 states have (on average 1.4858440389493495) internal successors, (72634), 48884 states have internal predecessors, (72634), 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 04:29:56,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48885 states to 48885 states and 72634 transitions. [2024-11-28 04:29:56,532 INFO L78 Accepts]: Start accepts. Automaton has 48885 states and 72634 transitions. Word has length 180 [2024-11-28 04:29:56,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:56,532 INFO L471 AbstractCegarLoop]: Abstraction has 48885 states and 72634 transitions. [2024-11-28 04:29:56,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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 04:29:56,532 INFO L276 IsEmpty]: Start isEmpty. Operand 48885 states and 72634 transitions. [2024-11-28 04:29:56,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-28 04:29:56,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:56,541 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:56,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:29:56,541 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:56,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:56,542 INFO L85 PathProgramCache]: Analyzing trace with hash 448768331, now seen corresponding path program 1 times [2024-11-28 04:29:56,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:56,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019226982] [2024-11-28 04:29:56,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:56,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:56,925 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 04:29:56,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:56,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019226982] [2024-11-28 04:29:56,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019226982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:56,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:56,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:29:56,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773505110] [2024-11-28 04:29:56,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:56,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:56,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:56,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:56,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:56,927 INFO L87 Difference]: Start difference. First operand 48885 states and 72634 transitions. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 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 04:29:57,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:57,442 INFO L93 Difference]: Finished difference Result 93419 states and 138860 transitions. [2024-11-28 04:29:57,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:57,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 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 180 [2024-11-28 04:29:57,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:57,505 INFO L225 Difference]: With dead ends: 93419 [2024-11-28 04:29:57,505 INFO L226 Difference]: Without dead ends: 44797 [2024-11-28 04:29:57,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:57,531 INFO L435 NwaCegarLoop]: 778 mSDtfsCounter, 411 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 2681 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:57,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 2681 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:57,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44797 states. [2024-11-28 04:29:58,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44797 to 44640. [2024-11-28 04:29:58,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44640 states, 44639 states have (on average 1.485897981585609) internal successors, (66329), 44639 states have internal predecessors, (66329), 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 04:29:58,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44640 states to 44640 states and 66329 transitions. [2024-11-28 04:29:58,274 INFO L78 Accepts]: Start accepts. Automaton has 44640 states and 66329 transitions. Word has length 180 [2024-11-28 04:29:58,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:58,274 INFO L471 AbstractCegarLoop]: Abstraction has 44640 states and 66329 transitions. [2024-11-28 04:29:58,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 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 04:29:58,274 INFO L276 IsEmpty]: Start isEmpty. Operand 44640 states and 66329 transitions. [2024-11-28 04:29:58,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 04:29:58,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:58,283 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:58,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 04:29:58,283 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:58,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:58,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1759160890, now seen corresponding path program 1 times [2024-11-28 04:29:58,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:58,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742692050] [2024-11-28 04:29:58,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:58,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:58,631 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 04:29:58,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:58,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742692050] [2024-11-28 04:29:58,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742692050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:58,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:58,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:58,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735563346] [2024-11-28 04:29:58,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:58,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:58,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:58,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:58,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:58,633 INFO L87 Difference]: Start difference. First operand 44640 states and 66329 transitions. Second operand has 5 states, 5 states have (on average 36.4) internal successors, (182), 4 states have internal predecessors, (182), 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 04:29:59,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:59,043 INFO L93 Difference]: Finished difference Result 88050 states and 131272 transitions. [2024-11-28 04:29:59,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:59,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 4 states have internal predecessors, (182), 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 182 [2024-11-28 04:29:59,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:59,101 INFO L225 Difference]: With dead ends: 88050 [2024-11-28 04:29:59,101 INFO L226 Difference]: Without dead ends: 44640 [2024-11-28 04:29:59,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:29:59,126 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 1254 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:59,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 452 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:29:59,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44640 states. [2024-11-28 04:29:59,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44640 to 44640. [2024-11-28 04:29:59,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44640 states, 44639 states have (on average 1.4736665247877416) internal successors, (65783), 44639 states have internal predecessors, (65783), 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 04:29:59,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44640 states to 44640 states and 65783 transitions. [2024-11-28 04:29:59,972 INFO L78 Accepts]: Start accepts. Automaton has 44640 states and 65783 transitions. Word has length 182 [2024-11-28 04:29:59,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:59,972 INFO L471 AbstractCegarLoop]: Abstraction has 44640 states and 65783 transitions. [2024-11-28 04:29:59,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 4 states have internal predecessors, (182), 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 04:29:59,972 INFO L276 IsEmpty]: Start isEmpty. Operand 44640 states and 65783 transitions. [2024-11-28 04:29:59,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 04:29:59,977 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:59,978 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:59,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 04:29:59,978 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:59,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:59,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1609633707, now seen corresponding path program 1 times [2024-11-28 04:29:59,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:59,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366408223] [2024-11-28 04:29:59,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:59,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:00,153 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 04:30:00,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:00,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366408223] [2024-11-28 04:30:00,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366408223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:00,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:00,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:30:00,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044090566] [2024-11-28 04:30:00,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:00,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:30:00,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:00,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:30:00,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:00,156 INFO L87 Difference]: Start difference. First operand 44640 states and 65783 transitions. Second operand has 5 states, 5 states have (on average 36.4) internal successors, (182), 4 states have internal predecessors, (182), 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 04:30:00,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:00,547 INFO L93 Difference]: Finished difference Result 88270 states and 130462 transitions. [2024-11-28 04:30:00,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:30:00,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 4 states have internal predecessors, (182), 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 182 [2024-11-28 04:30:00,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:00,604 INFO L225 Difference]: With dead ends: 88270 [2024-11-28 04:30:00,604 INFO L226 Difference]: Without dead ends: 44640 [2024-11-28 04:30:00,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:30:00,625 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 1246 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:00,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 450 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:30:00,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44640 states. [2024-11-28 04:30:01,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44640 to 44640. [2024-11-28 04:30:01,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44640 states, 44639 states have (on average 1.4614350679898742) internal successors, (65237), 44639 states have internal predecessors, (65237), 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 04:30:01,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44640 states to 44640 states and 65237 transitions. [2024-11-28 04:30:01,279 INFO L78 Accepts]: Start accepts. Automaton has 44640 states and 65237 transitions. Word has length 182 [2024-11-28 04:30:01,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:01,279 INFO L471 AbstractCegarLoop]: Abstraction has 44640 states and 65237 transitions. [2024-11-28 04:30:01,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 4 states have internal predecessors, (182), 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 04:30:01,279 INFO L276 IsEmpty]: Start isEmpty. Operand 44640 states and 65237 transitions. [2024-11-28 04:30:01,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 04:30:01,284 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:01,284 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:01,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 04:30:01,284 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:01,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:01,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1496989680, now seen corresponding path program 1 times [2024-11-28 04:30:01,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:01,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660579204] [2024-11-28 04:30:01,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:01,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:01,611 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 04:30:01,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:01,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660579204] [2024-11-28 04:30:01,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660579204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:01,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:01,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:30:01,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186228706] [2024-11-28 04:30:01,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:01,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:30:01,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:01,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:30:01,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:01,613 INFO L87 Difference]: Start difference. First operand 44640 states and 65237 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 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 04:30:01,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:01,979 INFO L93 Difference]: Finished difference Result 122458 states and 182151 transitions. [2024-11-28 04:30:01,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:30:01,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 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 182 [2024-11-28 04:30:01,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:02,100 INFO L225 Difference]: With dead ends: 122458 [2024-11-28 04:30:02,100 INFO L226 Difference]: Without dead ends: 86864 [2024-11-28 04:30:02,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:02,134 INFO L435 NwaCegarLoop]: 487 mSDtfsCounter, 572 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:02,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 964 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:02,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86864 states. [2024-11-28 04:30:03,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86864 to 86862. [2024-11-28 04:30:03,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86862 states, 86861 states have (on average 1.4659398349086472) internal successors, (127333), 86861 states have internal predecessors, (127333), 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 04:30:04,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86862 states to 86862 states and 127333 transitions. [2024-11-28 04:30:04,042 INFO L78 Accepts]: Start accepts. Automaton has 86862 states and 127333 transitions. Word has length 182 [2024-11-28 04:30:04,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:04,042 INFO L471 AbstractCegarLoop]: Abstraction has 86862 states and 127333 transitions. [2024-11-28 04:30:04,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 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 04:30:04,042 INFO L276 IsEmpty]: Start isEmpty. Operand 86862 states and 127333 transitions. [2024-11-28 04:30:04,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 04:30:04,052 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:04,052 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:04,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 04:30:04,052 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:04,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:04,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1965776013, now seen corresponding path program 1 times [2024-11-28 04:30:04,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:04,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433765732] [2024-11-28 04:30:04,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:04,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:04,254 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 04:30:04,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:04,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433765732] [2024-11-28 04:30:04,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433765732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:04,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:04,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:30:04,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586350220] [2024-11-28 04:30:04,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:04,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:30:04,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:04,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:30:04,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:04,257 INFO L87 Difference]: Start difference. First operand 86862 states and 127333 transitions. Second operand has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 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 04:30:04,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:04,890 INFO L93 Difference]: Finished difference Result 182192 states and 272915 transitions. [2024-11-28 04:30:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:30:04,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 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 182 [2024-11-28 04:30:04,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:05,061 INFO L225 Difference]: With dead ends: 182192 [2024-11-28 04:30:05,061 INFO L226 Difference]: Without dead ends: 147516 [2024-11-28 04:30:05,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:30:05,102 INFO L435 NwaCegarLoop]: 634 mSDtfsCounter, 1063 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:05,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 1627 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:30:05,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147516 states. [2024-11-28 04:30:07,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147516 to 104190. [2024-11-28 04:30:07,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104190 states, 104189 states have (on average 1.4732745299407808) internal successors, (153499), 104189 states have internal predecessors, (153499), 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 04:30:07,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104190 states to 104190 states and 153499 transitions. [2024-11-28 04:30:07,236 INFO L78 Accepts]: Start accepts. Automaton has 104190 states and 153499 transitions. Word has length 182 [2024-11-28 04:30:07,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:07,236 INFO L471 AbstractCegarLoop]: Abstraction has 104190 states and 153499 transitions. [2024-11-28 04:30:07,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 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 04:30:07,236 INFO L276 IsEmpty]: Start isEmpty. Operand 104190 states and 153499 transitions. [2024-11-28 04:30:07,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 04:30:07,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:07,246 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:07,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 04:30:07,246 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:07,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:07,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1787657341, now seen corresponding path program 1 times [2024-11-28 04:30:07,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:07,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783052639] [2024-11-28 04:30:07,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:07,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:07,364 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 04:30:07,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:07,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783052639] [2024-11-28 04:30:07,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783052639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:07,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:07,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:07,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101007302] [2024-11-28 04:30:07,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:07,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:30:07,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:07,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:30:07,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:30:07,366 INFO L87 Difference]: Start difference. First operand 104190 states and 153499 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 04:30:07,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:07,784 INFO L93 Difference]: Finished difference Result 149130 states and 221585 transitions. [2024-11-28 04:30:07,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:30:07,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 182 [2024-11-28 04:30:07,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:08,355 INFO L225 Difference]: With dead ends: 149130 [2024-11-28 04:30:08,355 INFO L226 Difference]: Without dead ends: 104192 [2024-11-28 04:30:08,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:30:08,375 INFO L435 NwaCegarLoop]: 621 mSDtfsCounter, 281 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:08,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 958 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:08,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104192 states. [2024-11-28 04:30:09,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104192 to 104190. [2024-11-28 04:30:10,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104190 states, 104189 states have (on average 1.4691282189098658) internal successors, (153067), 104189 states have internal predecessors, (153067), 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 04:30:10,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104190 states to 104190 states and 153067 transitions. [2024-11-28 04:30:10,164 INFO L78 Accepts]: Start accepts. Automaton has 104190 states and 153067 transitions. Word has length 182 [2024-11-28 04:30:10,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:10,164 INFO L471 AbstractCegarLoop]: Abstraction has 104190 states and 153067 transitions. [2024-11-28 04:30:10,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 04:30:10,164 INFO L276 IsEmpty]: Start isEmpty. Operand 104190 states and 153067 transitions. [2024-11-28 04:30:10,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 04:30:10,173 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:10,174 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:10,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 04:30:10,174 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:10,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:10,174 INFO L85 PathProgramCache]: Analyzing trace with hash -61282070, now seen corresponding path program 1 times [2024-11-28 04:30:10,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:10,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390476557] [2024-11-28 04:30:10,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:10,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:10,348 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 04:30:10,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:10,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390476557] [2024-11-28 04:30:10,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390476557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:10,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:10,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:30:10,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860900244] [2024-11-28 04:30:10,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:10,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:30:10,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:10,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:30:10,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:10,350 INFO L87 Difference]: Start difference. First operand 104190 states and 153067 transitions. Second operand has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 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)