./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.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_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/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_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/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_fccc9b32-5c1e-4f35-8f41-544e086e9a27/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 029e66cc29f9dcf52d753d6fa453421ef1b83ddb99d478b0b8b7f28a0a169bb8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:31:06,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:31:06,513 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:31:06,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:31:06,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:31:06,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:31:06,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:31:06,546 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:31:06,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:31:06,547 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:31:06,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:31:06,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:31:06,547 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:31:06,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:31:06,548 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:31:06,548 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:31:06,548 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:31:06,548 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:31:06,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:31:06,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:31:06,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:31:06,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:31:06,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:31:06,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:31:06,549 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:31:06,549 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:31:06,550 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:31:06,550 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:31:06,550 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:31:06,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:06,550 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:06,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:06,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:06,551 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:31:06,551 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:06,551 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:06,551 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:06,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:06,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:31:06,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:31:06,552 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:31:06,552 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:31:06,552 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:31:06,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:31:06,552 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:31:06,552 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:31:06,552 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:31:06,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:31:06,553 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_fccc9b32-5c1e-4f35-8f41-544e086e9a27/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 -> 029e66cc29f9dcf52d753d6fa453421ef1b83ddb99d478b0b8b7f28a0a169bb8 [2024-11-27 23:31:06,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:31:06,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:31:06,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:31:06,829 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:31:06,829 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:31:06,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c [2024-11-27 23:31:09,729 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/data/3590e066a/e3287cb28a9f41c5a2e1e8dd59c48eb4/FLAG426016843 [2024-11-27 23:31:10,379 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:31:10,380 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c [2024-11-27 23:31:10,408 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/data/3590e066a/e3287cb28a9f41c5a2e1e8dd59c48eb4/FLAG426016843 [2024-11-27 23:31:10,427 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/data/3590e066a/e3287cb28a9f41c5a2e1e8dd59c48eb4 [2024-11-27 23:31:10,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:31:10,432 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:31:10,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:10,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:31:10,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:31:10,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:10" (1/1) ... [2024-11-27 23:31:10,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cc2e6ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:10, skipping insertion in model container [2024-11-27 23:31:10,445 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:10" (1/1) ... [2024-11-27 23:31:10,574 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:31:10,925 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_fccc9b32-5c1e-4f35-8f41-544e086e9a27/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c[15519,15532] [2024-11-27 23:31:11,003 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_fccc9b32-5c1e-4f35-8f41-544e086e9a27/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c[23267,23280] [2024-11-27 23:31:11,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:11,831 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:31:11,890 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_fccc9b32-5c1e-4f35-8f41-544e086e9a27/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c[15519,15532] [2024-11-27 23:31:11,911 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_fccc9b32-5c1e-4f35-8f41-544e086e9a27/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c[23267,23280] [2024-11-27 23:31:12,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:12,439 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:31:12,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12 WrapperNode [2024-11-27 23:31:12,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:12,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:12,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:31:12,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:31:12,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12" (1/1) ... [2024-11-27 23:31:12,529 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12" (1/1) ... [2024-11-27 23:31:12,889 INFO L138 Inliner]: procedures = 37, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5158 [2024-11-27 23:31:12,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:12,890 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:31:12,890 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:31:12,890 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:31:12,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12" (1/1) ... [2024-11-27 23:31:12,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12" (1/1) ... [2024-11-27 23:31:12,951 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12" (1/1) ... [2024-11-27 23:31:13,239 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]. [2024-11-27 23:31:13,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12" (1/1) ... [2024-11-27 23:31:13,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12" (1/1) ... [2024-11-27 23:31:13,360 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12" (1/1) ... [2024-11-27 23:31:13,377 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12" (1/1) ... [2024-11-27 23:31:13,413 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12" (1/1) ... [2024-11-27 23:31:13,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12" (1/1) ... [2024-11-27 23:31:13,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12" (1/1) ... [2024-11-27 23:31:13,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:31:13,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:31:13,616 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:31:13,617 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:31:13,617 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12" (1/1) ... [2024-11-27 23:31:13,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:13,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:13,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:31:13,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:31:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:31:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:31:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:31:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:31:13,798 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:31:13,799 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:31:19,537 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-27 23:31:19,537 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:31:19,569 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:31:19,569 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-27 23:31:19,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:19 BoogieIcfgContainer [2024-11-27 23:31:19,570 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:31:19,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:31:19,573 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:31:19,578 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:31:19,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:31:10" (1/3) ... [2024-11-27 23:31:19,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2479f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:19, skipping insertion in model container [2024-11-27 23:31:19,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:12" (2/3) ... [2024-11-27 23:31:19,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2479f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:19, skipping insertion in model container [2024-11-27 23:31:19,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:19" (3/3) ... [2024-11-27 23:31:19,581 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c [2024-11-27 23:31:19,597 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:31:19,600 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c that has 1 procedures, 915 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-27 23:31:19,684 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:31:19,700 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;@4834230b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:31:19,701 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-27 23:31:19,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 915 states, 912 states have (on average 1.9035087719298245) internal successors, (1736), 914 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:19,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-27 23:31:19,722 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:19,723 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] [2024-11-27 23:31:19,723 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:19,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:19,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1336964983, now seen corresponding path program 1 times [2024-11-27 23:31:19,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:19,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530813320] [2024-11-27 23:31:19,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:19,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:20,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:20,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530813320] [2024-11-27 23:31:20,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530813320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:20,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:20,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:31:20,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868782208] [2024-11-27 23:31:20,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:20,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:31:20,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:20,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:31:20,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:31:20,067 INFO L87 Difference]: Start difference. First operand has 915 states, 912 states have (on average 1.9035087719298245) internal successors, (1736), 914 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:20,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:20,189 INFO L93 Difference]: Finished difference Result 1784 states and 3384 transitions. [2024-11-27 23:31:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:31:20,191 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-11-27 23:31:20,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:20,206 INFO L225 Difference]: With dead ends: 1784 [2024-11-27 23:31:20,206 INFO L226 Difference]: Without dead ends: 849 [2024-11-27 23:31:20,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:31:20,214 INFO L435 NwaCegarLoop]: 1670 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:20,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1670 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:20,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-11-27 23:31:20,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 849. [2024-11-27 23:31:20,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 847 states have (on average 1.8925619834710743) internal successors, (1603), 848 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:20,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1603 transitions. [2024-11-27 23:31:20,301 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1603 transitions. Word has length 27 [2024-11-27 23:31:20,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:20,301 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 1603 transitions. [2024-11-27 23:31:20,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:20,302 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1603 transitions. [2024-11-27 23:31:20,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-27 23:31:20,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:20,303 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] [2024-11-27 23:31:20,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:31:20,303 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:20,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:20,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1759666809, now seen corresponding path program 1 times [2024-11-27 23:31:20,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:20,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764451904] [2024-11-27 23:31:20,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:20,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:20,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:20,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:20,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764451904] [2024-11-27 23:31:20,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764451904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:20,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:20,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:31:20,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102278494] [2024-11-27 23:31:20,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:20,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:31:20,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:20,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:31:20,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:20,701 INFO L87 Difference]: Start difference. First operand 849 states and 1603 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:20,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:20,893 INFO L93 Difference]: Finished difference Result 902 states and 1685 transitions. [2024-11-27 23:31:20,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:31:20,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-11-27 23:31:20,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:20,900 INFO L225 Difference]: With dead ends: 902 [2024-11-27 23:31:20,900 INFO L226 Difference]: Without dead ends: 849 [2024-11-27 23:31:20,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:20,903 INFO L435 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 4758 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6359 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:20,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6359 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:20,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-11-27 23:31:20,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 849. [2024-11-27 23:31:20,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 847 states have (on average 1.845336481700118) internal successors, (1563), 848 states have internal predecessors, (1563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:20,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1563 transitions. [2024-11-27 23:31:20,957 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1563 transitions. Word has length 27 [2024-11-27 23:31:20,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:20,957 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 1563 transitions. [2024-11-27 23:31:20,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:20,957 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1563 transitions. [2024-11-27 23:31:20,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-27 23:31:20,963 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:20,963 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] [2024-11-27 23:31:20,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:31:20,963 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:20,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:20,964 INFO L85 PathProgramCache]: Analyzing trace with hash -757922131, now seen corresponding path program 1 times [2024-11-27 23:31:20,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:20,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550237977] [2024-11-27 23:31:20,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:20,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:21,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:21,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:21,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550237977] [2024-11-27 23:31:21,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550237977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:21,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:21,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:31:21,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918897659] [2024-11-27 23:31:21,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:21,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:31:21,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:21,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:31:21,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:31:21,437 INFO L87 Difference]: Start difference. First operand 849 states and 1563 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:21,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:21,968 INFO L93 Difference]: Finished difference Result 1437 states and 2499 transitions. [2024-11-27 23:31:21,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:31:21,969 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-27 23:31:21,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:21,978 INFO L225 Difference]: With dead ends: 1437 [2024-11-27 23:31:21,979 INFO L226 Difference]: Without dead ends: 1388 [2024-11-27 23:31:21,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:31:21,982 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 9700 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9700 SdHoareTripleChecker+Valid, 3471 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:21,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9700 Valid, 3471 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:31:21,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2024-11-27 23:31:22,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 896. [2024-11-27 23:31:22,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 894 states have (on average 1.832214765100671) internal successors, (1638), 895 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:22,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1638 transitions. [2024-11-27 23:31:22,033 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1638 transitions. Word has length 66 [2024-11-27 23:31:22,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:22,033 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 1638 transitions. [2024-11-27 23:31:22,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:22,033 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1638 transitions. [2024-11-27 23:31:22,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-27 23:31:22,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:22,035 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] [2024-11-27 23:31:22,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:31:22,035 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:22,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:22,036 INFO L85 PathProgramCache]: Analyzing trace with hash -71705941, now seen corresponding path program 1 times [2024-11-27 23:31:22,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:22,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308475467] [2024-11-27 23:31:22,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:22,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:22,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:22,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:22,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308475467] [2024-11-27 23:31:22,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308475467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:22,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:22,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:22,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52167880] [2024-11-27 23:31:22,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:22,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:31:22,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:22,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:31:22,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:31:22,385 INFO L87 Difference]: Start difference. First operand 896 states and 1638 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:30,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:30,164 INFO L93 Difference]: Finished difference Result 3151 states and 5947 transitions. [2024-11-27 23:31:30,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:31:30,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-27 23:31:30,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:30,175 INFO L225 Difference]: With dead ends: 3151 [2024-11-27 23:31:30,175 INFO L226 Difference]: Without dead ends: 2398 [2024-11-27 23:31:30,177 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:30,178 INFO L435 NwaCegarLoop]: 799 mSDtfsCounter, 2427 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:30,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 817 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-27 23:31:30,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2024-11-27 23:31:30,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2398. [2024-11-27 23:31:30,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 2396 states have (on average 1.5659432387312187) internal successors, (3752), 2397 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:30,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 3752 transitions. [2024-11-27 23:31:30,245 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 3752 transitions. Word has length 67 [2024-11-27 23:31:30,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:30,245 INFO L471 AbstractCegarLoop]: Abstraction has 2398 states and 3752 transitions. [2024-11-27 23:31:30,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:30,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 3752 transitions. [2024-11-27 23:31:30,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-27 23:31:30,247 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:30,247 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] [2024-11-27 23:31:30,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:31:30,247 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:30,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:30,248 INFO L85 PathProgramCache]: Analyzing trace with hash 365578237, now seen corresponding path program 1 times [2024-11-27 23:31:30,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:30,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945322799] [2024-11-27 23:31:30,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:30,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:30,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:30,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:30,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945322799] [2024-11-27 23:31:30,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945322799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:30,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:30,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:30,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113569628] [2024-11-27 23:31:30,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:30,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:30,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:30,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:30,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:30,362 INFO L87 Difference]: Start difference. First operand 2398 states and 3752 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:30,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:30,454 INFO L93 Difference]: Finished difference Result 2579 states and 4039 transitions. [2024-11-27 23:31:30,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:30,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-27 23:31:30,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:30,465 INFO L225 Difference]: With dead ends: 2579 [2024-11-27 23:31:30,465 INFO L226 Difference]: Without dead ends: 2483 [2024-11-27 23:31:30,466 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 [2024-11-27 23:31:30,469 INFO L435 NwaCegarLoop]: 1560 mSDtfsCounter, 1490 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:30,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1633 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:30,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2483 states. [2024-11-27 23:31:30,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2483 to 2481. [2024-11-27 23:31:30,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2481 states, 2479 states have (on average 1.5659540137152077) internal successors, (3882), 2480 states have internal predecessors, (3882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:30,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2481 states to 2481 states and 3882 transitions. [2024-11-27 23:31:30,530 INFO L78 Accepts]: Start accepts. Automaton has 2481 states and 3882 transitions. Word has length 68 [2024-11-27 23:31:30,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:30,531 INFO L471 AbstractCegarLoop]: Abstraction has 2481 states and 3882 transitions. [2024-11-27 23:31:30,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:30,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2481 states and 3882 transitions. [2024-11-27 23:31:30,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-27 23:31:30,532 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:30,532 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] [2024-11-27 23:31:30,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:31:30,532 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:30,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:30,533 INFO L85 PathProgramCache]: Analyzing trace with hash 432071749, now seen corresponding path program 1 times [2024-11-27 23:31:30,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:30,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386122563] [2024-11-27 23:31:30,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:30,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:31,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:31,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:31,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386122563] [2024-11-27 23:31:31,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386122563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:31,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:31,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:31:31,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995285188] [2024-11-27 23:31:31,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:31,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:31:31,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:31,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:31:31,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:31:31,056 INFO L87 Difference]: Start difference. First operand 2481 states and 3882 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:31,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:31,380 INFO L93 Difference]: Finished difference Result 2662 states and 4166 transitions. [2024-11-27 23:31:31,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:31:31,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-27 23:31:31,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:31,393 INFO L225 Difference]: With dead ends: 2662 [2024-11-27 23:31:31,394 INFO L226 Difference]: Without dead ends: 2483 [2024-11-27 23:31:31,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:31:31,396 INFO L435 NwaCegarLoop]: 1555 mSDtfsCounter, 6008 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6008 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:31,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6008 Valid, 1928 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:31,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2483 states. [2024-11-27 23:31:31,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2483 to 2481. [2024-11-27 23:31:31,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2481 states, 2479 states have (on average 1.5651472367890278) internal successors, (3880), 2480 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:31,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2481 states to 2481 states and 3880 transitions. [2024-11-27 23:31:31,459 INFO L78 Accepts]: Start accepts. Automaton has 2481 states and 3880 transitions. Word has length 68 [2024-11-27 23:31:31,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:31,460 INFO L471 AbstractCegarLoop]: Abstraction has 2481 states and 3880 transitions. [2024-11-27 23:31:31,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:31,460 INFO L276 IsEmpty]: Start isEmpty. Operand 2481 states and 3880 transitions. [2024-11-27 23:31:31,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-27 23:31:31,462 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:31,462 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] [2024-11-27 23:31:31,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:31:31,463 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:31,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:31,464 INFO L85 PathProgramCache]: Analyzing trace with hash 94599333, now seen corresponding path program 1 times [2024-11-27 23:31:31,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:31,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467829651] [2024-11-27 23:31:31,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:31,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:31,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:31,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:31,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467829651] [2024-11-27 23:31:31,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467829651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:31,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:31,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:31:31,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736410292] [2024-11-27 23:31:31,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:31,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:31:31,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:31,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:31:31,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:31,768 INFO L87 Difference]: Start difference. First operand 2481 states and 3880 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:31,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:31,814 INFO L93 Difference]: Finished difference Result 2489 states and 3889 transitions. [2024-11-27 23:31:31,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:31:31,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-27 23:31:31,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:31,825 INFO L225 Difference]: With dead ends: 2489 [2024-11-27 23:31:31,825 INFO L226 Difference]: Without dead ends: 2487 [2024-11-27 23:31:31,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:31,827 INFO L435 NwaCegarLoop]: 1560 mSDtfsCounter, 0 mSDsluCounter, 4671 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6231 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:31,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6231 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:31,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2487 states. [2024-11-27 23:31:31,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2487 to 2487. [2024-11-27 23:31:31,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2487 states, 2485 states have (on average 1.5633802816901408) internal successors, (3885), 2486 states have internal predecessors, (3885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:31,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 3885 transitions. [2024-11-27 23:31:31,885 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 3885 transitions. Word has length 69 [2024-11-27 23:31:31,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:31,885 INFO L471 AbstractCegarLoop]: Abstraction has 2487 states and 3885 transitions. [2024-11-27 23:31:31,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:31,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 3885 transitions. [2024-11-27 23:31:31,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-27 23:31:31,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:31,886 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] [2024-11-27 23:31:31,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:31:31,887 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:31,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:31,887 INFO L85 PathProgramCache]: Analyzing trace with hash -988941275, now seen corresponding path program 1 times [2024-11-27 23:31:31,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:31,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828527343] [2024-11-27 23:31:31,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:31,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:31,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:31,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:31,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828527343] [2024-11-27 23:31:31,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828527343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:31,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:31,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:31,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045425382] [2024-11-27 23:31:31,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:31,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:31,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:31,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:31,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:31,981 INFO L87 Difference]: Start difference. First operand 2487 states and 3885 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:32,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:32,014 INFO L93 Difference]: Finished difference Result 2841 states and 4429 transitions. [2024-11-27 23:31:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:32,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-27 23:31:32,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:32,024 INFO L225 Difference]: With dead ends: 2841 [2024-11-27 23:31:32,025 INFO L226 Difference]: Without dead ends: 2656 [2024-11-27 23:31:32,028 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 [2024-11-27 23:31:32,028 INFO L435 NwaCegarLoop]: 1619 mSDtfsCounter, 1504 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:32,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1702 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:32,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2024-11-27 23:31:32,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2654. [2024-11-27 23:31:32,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2654 states, 2652 states have (on average 1.5603318250377074) internal successors, (4138), 2653 states have internal predecessors, (4138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:32,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2654 states to 2654 states and 4138 transitions. [2024-11-27 23:31:32,090 INFO L78 Accepts]: Start accepts. Automaton has 2654 states and 4138 transitions. Word has length 70 [2024-11-27 23:31:32,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:32,090 INFO L471 AbstractCegarLoop]: Abstraction has 2654 states and 4138 transitions. [2024-11-27 23:31:32,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:32,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2654 states and 4138 transitions. [2024-11-27 23:31:32,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-27 23:31:32,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:32,091 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] [2024-11-27 23:31:32,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:31:32,092 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:32,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:32,092 INFO L85 PathProgramCache]: Analyzing trace with hash -725084891, now seen corresponding path program 1 times [2024-11-27 23:31:32,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:32,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110390527] [2024-11-27 23:31:32,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:32,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:32,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:32,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110390527] [2024-11-27 23:31:32,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110390527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:32,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:32,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:32,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242260726] [2024-11-27 23:31:32,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:32,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:32,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:32,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:32,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:32,174 INFO L87 Difference]: Start difference. First operand 2654 states and 4138 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:32,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:32,215 INFO L93 Difference]: Finished difference Result 3326 states and 5160 transitions. [2024-11-27 23:31:32,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:32,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-27 23:31:32,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:32,226 INFO L225 Difference]: With dead ends: 3326 [2024-11-27 23:31:32,226 INFO L226 Difference]: Without dead ends: 2974 [2024-11-27 23:31:32,228 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 [2024-11-27 23:31:32,230 INFO L435 NwaCegarLoop]: 1617 mSDtfsCounter, 1502 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:32,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1704 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:32,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2024-11-27 23:31:32,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 2972. [2024-11-27 23:31:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 2970 states have (on average 1.552861952861953) internal successors, (4612), 2971 states have internal predecessors, (4612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:32,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 4612 transitions. [2024-11-27 23:31:32,300 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 4612 transitions. Word has length 70 [2024-11-27 23:31:32,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:32,301 INFO L471 AbstractCegarLoop]: Abstraction has 2972 states and 4612 transitions. [2024-11-27 23:31:32,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:32,301 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 4612 transitions. [2024-11-27 23:31:32,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-27 23:31:32,302 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:32,302 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] [2024-11-27 23:31:32,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:31:32,303 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:32,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:32,304 INFO L85 PathProgramCache]: Analyzing trace with hash 513177125, now seen corresponding path program 1 times [2024-11-27 23:31:32,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:32,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873758928] [2024-11-27 23:31:32,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:32,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:32,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:32,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:32,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873758928] [2024-11-27 23:31:32,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873758928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:32,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:32,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:32,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216957272] [2024-11-27 23:31:32,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:32,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:32,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:32,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:32,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:32,388 INFO L87 Difference]: Start difference. First operand 2972 states and 4612 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:32,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:32,437 INFO L93 Difference]: Finished difference Result 4248 states and 6526 transitions. [2024-11-27 23:31:32,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:32,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-27 23:31:32,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:32,450 INFO L225 Difference]: With dead ends: 4248 [2024-11-27 23:31:32,450 INFO L226 Difference]: Without dead ends: 3578 [2024-11-27 23:31:32,452 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 [2024-11-27 23:31:32,453 INFO L435 NwaCegarLoop]: 1615 mSDtfsCounter, 1500 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:32,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1706 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:32,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3578 states. [2024-11-27 23:31:32,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3576. [2024-11-27 23:31:32,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3574 states have (on average 1.5377728035814213) internal successors, (5496), 3575 states have internal predecessors, (5496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:32,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 5496 transitions. [2024-11-27 23:31:32,544 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 5496 transitions. Word has length 70 [2024-11-27 23:31:32,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:32,544 INFO L471 AbstractCegarLoop]: Abstraction has 3576 states and 5496 transitions. [2024-11-27 23:31:32,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:32,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 5496 transitions. [2024-11-27 23:31:32,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-27 23:31:32,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:32,547 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] [2024-11-27 23:31:32,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:31:32,547 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:32,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:32,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1702291675, now seen corresponding path program 1 times [2024-11-27 23:31:32,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:32,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318800111] [2024-11-27 23:31:32,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:32,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:32,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:32,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:32,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318800111] [2024-11-27 23:31:32,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318800111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:32,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:32,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:32,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226704360] [2024-11-27 23:31:32,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:32,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:32,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:32,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:32,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:32,622 INFO L87 Difference]: Start difference. First operand 3576 states and 5496 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:32,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:32,690 INFO L93 Difference]: Finished difference Result 5996 states and 9066 transitions. [2024-11-27 23:31:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:32,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-27 23:31:32,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:32,722 INFO L225 Difference]: With dead ends: 5996 [2024-11-27 23:31:32,722 INFO L226 Difference]: Without dead ends: 4722 [2024-11-27 23:31:32,725 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 [2024-11-27 23:31:32,726 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 1498 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:32,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:32,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4722 states. [2024-11-27 23:31:32,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4722 to 4720. [2024-11-27 23:31:32,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4720 states, 4718 states have (on average 1.5125052988554473) internal successors, (7136), 4719 states have internal predecessors, (7136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:32,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4720 states to 4720 states and 7136 transitions. [2024-11-27 23:31:32,926 INFO L78 Accepts]: Start accepts. Automaton has 4720 states and 7136 transitions. Word has length 70 [2024-11-27 23:31:32,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:32,927 INFO L471 AbstractCegarLoop]: Abstraction has 4720 states and 7136 transitions. [2024-11-27 23:31:32,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:32,928 INFO L276 IsEmpty]: Start isEmpty. Operand 4720 states and 7136 transitions. [2024-11-27 23:31:32,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-27 23:31:32,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:32,930 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] [2024-11-27 23:31:32,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:31:32,930 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:32,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:32,930 INFO L85 PathProgramCache]: Analyzing trace with hash 78641189, now seen corresponding path program 1 times [2024-11-27 23:31:32,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:32,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764369723] [2024-11-27 23:31:32,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:32,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:33,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:33,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:33,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764369723] [2024-11-27 23:31:33,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764369723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:33,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:33,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:33,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288694168] [2024-11-27 23:31:33,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:33,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:33,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:33,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:33,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:33,005 INFO L87 Difference]: Start difference. First operand 4720 states and 7136 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:33,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:33,115 INFO L93 Difference]: Finished difference Result 9300 states and 13762 transitions. [2024-11-27 23:31:33,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:33,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-27 23:31:33,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:33,135 INFO L225 Difference]: With dead ends: 9300 [2024-11-27 23:31:33,135 INFO L226 Difference]: Without dead ends: 6882 [2024-11-27 23:31:33,139 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 [2024-11-27 23:31:33,140 INFO L435 NwaCegarLoop]: 1611 mSDtfsCounter, 1496 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:33,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1710 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:33,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6882 states. [2024-11-27 23:31:33,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6882 to 6880. [2024-11-27 23:31:33,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6880 states, 6878 states have (on average 1.477173596975865) internal successors, (10160), 6879 states have internal predecessors, (10160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:33,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6880 states to 6880 states and 10160 transitions. [2024-11-27 23:31:33,332 INFO L78 Accepts]: Start accepts. Automaton has 6880 states and 10160 transitions. Word has length 70 [2024-11-27 23:31:33,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:33,332 INFO L471 AbstractCegarLoop]: Abstraction has 6880 states and 10160 transitions. [2024-11-27 23:31:33,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:33,334 INFO L276 IsEmpty]: Start isEmpty. Operand 6880 states and 10160 transitions. [2024-11-27 23:31:33,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-27 23:31:33,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:33,335 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] [2024-11-27 23:31:33,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:31:33,336 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:33,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:33,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1151855835, now seen corresponding path program 1 times [2024-11-27 23:31:33,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:33,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479753655] [2024-11-27 23:31:33,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:33,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:33,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:33,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:33,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479753655] [2024-11-27 23:31:33,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479753655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:33,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:33,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:33,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379024253] [2024-11-27 23:31:33,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:33,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:33,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:33,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:33,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:33,409 INFO L87 Difference]: Start difference. First operand 6880 states and 10160 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:33,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:33,541 INFO L93 Difference]: Finished difference Result 11751 states and 17206 transitions. [2024-11-27 23:31:33,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:33,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-27 23:31:33,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:33,561 INFO L225 Difference]: With dead ends: 11751 [2024-11-27 23:31:33,561 INFO L226 Difference]: Without dead ends: 9189 [2024-11-27 23:31:33,567 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 [2024-11-27 23:31:33,568 INFO L435 NwaCegarLoop]: 1625 mSDtfsCounter, 1506 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:33,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1704 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:33,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9189 states. [2024-11-27 23:31:33,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9189 to 9187. [2024-11-27 23:31:33,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9187 states, 9185 states have (on average 1.4583560152422428) internal successors, (13395), 9186 states have internal predecessors, (13395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:33,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9187 states to 9187 states and 13395 transitions. [2024-11-27 23:31:33,832 INFO L78 Accepts]: Start accepts. Automaton has 9187 states and 13395 transitions. Word has length 70 [2024-11-27 23:31:33,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:33,832 INFO L471 AbstractCegarLoop]: Abstraction has 9187 states and 13395 transitions. [2024-11-27 23:31:33,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:33,833 INFO L276 IsEmpty]: Start isEmpty. Operand 9187 states and 13395 transitions. [2024-11-27 23:31:33,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-27 23:31:33,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:33,836 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:33,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:31:33,837 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:33,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:33,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1578521922, now seen corresponding path program 1 times [2024-11-27 23:31:33,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:33,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618527429] [2024-11-27 23:31:33,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:33,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:34,155 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 23:31:34,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:34,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618527429] [2024-11-27 23:31:34,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618527429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:34,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:34,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:31:34,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635313917] [2024-11-27 23:31:34,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:34,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:31:34,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:34,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:31:34,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:31:34,157 INFO L87 Difference]: Start difference. First operand 9187 states and 13395 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:35,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:35,340 INFO L93 Difference]: Finished difference Result 51921 states and 74106 transitions. [2024-11-27 23:31:35,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:31:35,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 92 [2024-11-27 23:31:35,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:35,447 INFO L225 Difference]: With dead ends: 51921 [2024-11-27 23:31:35,448 INFO L226 Difference]: Without dead ends: 45039 [2024-11-27 23:31:35,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:31:35,466 INFO L435 NwaCegarLoop]: 1638 mSDtfsCounter, 8033 mSDsluCounter, 2375 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8033 SdHoareTripleChecker+Valid, 4013 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:35,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8033 Valid, 4013 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:35,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45039 states. [2024-11-27 23:31:36,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45039 to 16067. [2024-11-27 23:31:36,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16067 states, 16065 states have (on average 1.4373482726423903) internal successors, (23091), 16066 states have internal predecessors, (23091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:36,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16067 states to 16067 states and 23091 transitions. [2024-11-27 23:31:36,137 INFO L78 Accepts]: Start accepts. Automaton has 16067 states and 23091 transitions. Word has length 92 [2024-11-27 23:31:36,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:36,138 INFO L471 AbstractCegarLoop]: Abstraction has 16067 states and 23091 transitions. [2024-11-27 23:31:36,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:36,138 INFO L276 IsEmpty]: Start isEmpty. Operand 16067 states and 23091 transitions. [2024-11-27 23:31:36,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-27 23:31:36,142 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:36,142 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:36,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:31:36,143 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:36,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:36,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1842378306, now seen corresponding path program 1 times [2024-11-27 23:31:36,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:36,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406054926] [2024-11-27 23:31:36,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:36,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 23:31:36,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:36,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406054926] [2024-11-27 23:31:36,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406054926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:36,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:36,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:31:36,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615122471] [2024-11-27 23:31:36,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:36,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:31:36,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:36,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:31:36,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:31:36,444 INFO L87 Difference]: Start difference. First operand 16067 states and 23091 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:37,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:37,499 INFO L93 Difference]: Finished difference Result 58801 states and 83802 transitions. [2024-11-27 23:31:37,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:31:37,501 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-27 23:31:37,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:37,624 INFO L225 Difference]: With dead ends: 58801 [2024-11-27 23:31:37,624 INFO L226 Difference]: Without dead ends: 51919 [2024-11-27 23:31:37,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:31:37,643 INFO L435 NwaCegarLoop]: 1636 mSDtfsCounter, 8054 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8054 SdHoareTripleChecker+Valid, 3945 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:37,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8054 Valid, 3945 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:37,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51919 states. [2024-11-27 23:31:38,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51919 to 26403. [2024-11-27 23:31:38,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26403 states, 26401 states have (on average 1.4224839968183023) internal successors, (37555), 26402 states have internal predecessors, (37555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:38,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26403 states to 26403 states and 37555 transitions. [2024-11-27 23:31:38,603 INFO L78 Accepts]: Start accepts. Automaton has 26403 states and 37555 transitions. Word has length 92 [2024-11-27 23:31:38,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:38,604 INFO L471 AbstractCegarLoop]: Abstraction has 26403 states and 37555 transitions. [2024-11-27 23:31:38,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:38,604 INFO L276 IsEmpty]: Start isEmpty. Operand 26403 states and 37555 transitions. [2024-11-27 23:31:38,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-27 23:31:38,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:38,608 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:38,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:31:38,608 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:38,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:38,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1214326974, now seen corresponding path program 1 times [2024-11-27 23:31:38,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:38,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217226132] [2024-11-27 23:31:38,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:38,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:38,838 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 23:31:38,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:38,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217226132] [2024-11-27 23:31:38,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217226132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:38,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:38,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:31:38,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545659141] [2024-11-27 23:31:38,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:38,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:31:38,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:38,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:31:38,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:31:38,840 INFO L87 Difference]: Start difference. First operand 26403 states and 37555 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:40,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:40,041 INFO L93 Difference]: Finished difference Result 65681 states and 93498 transitions. [2024-11-27 23:31:40,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:31:40,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-27 23:31:40,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:40,279 INFO L225 Difference]: With dead ends: 65681 [2024-11-27 23:31:40,279 INFO L226 Difference]: Without dead ends: 58799 [2024-11-27 23:31:40,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:31:40,290 INFO L435 NwaCegarLoop]: 1634 mSDtfsCounter, 8095 mSDsluCounter, 2255 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8095 SdHoareTripleChecker+Valid, 3889 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:40,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8095 Valid, 3889 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:40,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58799 states. [2024-11-27 23:31:41,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58799 to 33283. [2024-11-27 23:31:41,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33283 states, 33281 states have (on average 1.4197590216640126) internal successors, (47251), 33282 states have internal predecessors, (47251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:41,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33283 states to 33283 states and 47251 transitions. [2024-11-27 23:31:41,614 INFO L78 Accepts]: Start accepts. Automaton has 33283 states and 47251 transitions. Word has length 92 [2024-11-27 23:31:41,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:41,615 INFO L471 AbstractCegarLoop]: Abstraction has 33283 states and 47251 transitions. [2024-11-27 23:31:41,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:41,615 INFO L276 IsEmpty]: Start isEmpty. Operand 33283 states and 47251 transitions. [2024-11-27 23:31:41,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-27 23:31:41,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:41,620 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:41,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 23:31:41,621 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:41,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:41,621 INFO L85 PathProgramCache]: Analyzing trace with hash 865171522, now seen corresponding path program 1 times [2024-11-27 23:31:41,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:41,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195519060] [2024-11-27 23:31:41,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:41,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:41,915 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-27 23:31:41,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:41,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195519060] [2024-11-27 23:31:41,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195519060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:41,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:41,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:31:41,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436731675] [2024-11-27 23:31:41,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:41,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:31:41,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:41,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:31:41,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:31:41,917 INFO L87 Difference]: Start difference. First operand 33283 states and 47251 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:43,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:43,694 INFO L93 Difference]: Finished difference Result 72561 states and 103194 transitions. [2024-11-27 23:31:43,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:31:43,694 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-27 23:31:43,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:43,925 INFO L225 Difference]: With dead ends: 72561 [2024-11-27 23:31:43,926 INFO L226 Difference]: Without dead ends: 65679 [2024-11-27 23:31:43,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:31:43,937 INFO L435 NwaCegarLoop]: 1632 mSDtfsCounter, 8141 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8141 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:43,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8141 Valid, 3920 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:43,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65679 states. [2024-11-27 23:31:44,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65679 to 40163. [2024-11-27 23:31:44,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40163 states, 40161 states have (on average 1.4179676800876473) internal successors, (56947), 40162 states have internal predecessors, (56947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:44,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40163 states to 40163 states and 56947 transitions. [2024-11-27 23:31:44,883 INFO L78 Accepts]: Start accepts. Automaton has 40163 states and 56947 transitions. Word has length 92 [2024-11-27 23:31:44,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:44,883 INFO L471 AbstractCegarLoop]: Abstraction has 40163 states and 56947 transitions. [2024-11-27 23:31:44,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:44,883 INFO L276 IsEmpty]: Start isEmpty. Operand 40163 states and 56947 transitions. [2024-11-27 23:31:44,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-27 23:31:44,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:44,888 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:44,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 23:31:44,888 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:44,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:44,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1648862910, now seen corresponding path program 1 times [2024-11-27 23:31:44,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:44,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137174563] [2024-11-27 23:31:44,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:44,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:45,099 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 23:31:45,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:45,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137174563] [2024-11-27 23:31:45,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137174563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:45,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:45,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:31:45,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006390111] [2024-11-27 23:31:45,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:45,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:31:45,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:45,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:31:45,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:31:45,101 INFO L87 Difference]: Start difference. First operand 40163 states and 56947 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:47,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:47,227 INFO L93 Difference]: Finished difference Result 79441 states and 112890 transitions. [2024-11-27 23:31:47,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:31:47,227 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-27 23:31:47,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:47,290 INFO L225 Difference]: With dead ends: 79441 [2024-11-27 23:31:47,290 INFO L226 Difference]: Without dead ends: 72559 [2024-11-27 23:31:47,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:31:47,304 INFO L435 NwaCegarLoop]: 1633 mSDtfsCounter, 8057 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8057 SdHoareTripleChecker+Valid, 3991 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:47,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8057 Valid, 3991 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:47,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72559 states. [2024-11-27 23:31:49,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72559 to 47043. [2024-11-27 23:31:49,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47043 states, 47041 states have (on average 1.4167003252481878) internal successors, (66643), 47042 states have internal predecessors, (66643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:49,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47043 states to 47043 states and 66643 transitions. [2024-11-27 23:31:49,183 INFO L78 Accepts]: Start accepts. Automaton has 47043 states and 66643 transitions. Word has length 92 [2024-11-27 23:31:49,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:49,183 INFO L471 AbstractCegarLoop]: Abstraction has 47043 states and 66643 transitions. [2024-11-27 23:31:49,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:49,183 INFO L276 IsEmpty]: Start isEmpty. Operand 47043 states and 66643 transitions. [2024-11-27 23:31:49,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-27 23:31:49,187 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:49,187 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:49,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 23:31:49,187 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:49,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:49,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1415607362, now seen corresponding path program 1 times [2024-11-27 23:31:49,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:49,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635596667] [2024-11-27 23:31:49,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:49,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:49,377 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:31:49,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:49,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635596667] [2024-11-27 23:31:49,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635596667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:49,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:49,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:31:49,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285091782] [2024-11-27 23:31:49,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:49,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:31:49,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:49,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:31:49,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:31:49,379 INFO L87 Difference]: Start difference. First operand 47043 states and 66643 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:51,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:51,502 INFO L93 Difference]: Finished difference Result 82289 states and 116954 transitions. [2024-11-27 23:31:51,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:31:51,502 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 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 92 [2024-11-27 23:31:51,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:51,581 INFO L225 Difference]: With dead ends: 82289 [2024-11-27 23:31:51,581 INFO L226 Difference]: Without dead ends: 77423 [2024-11-27 23:31:51,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:31:51,594 INFO L435 NwaCegarLoop]: 1631 mSDtfsCounter, 8033 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8033 SdHoareTripleChecker+Valid, 4179 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:51,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8033 Valid, 4179 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:51,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77423 states. [2024-11-27 23:31:53,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77423 to 51907. [2024-11-27 23:31:53,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51907 states, 51905 states have (on average 1.4171081784028514) internal successors, (73555), 51906 states have internal predecessors, (73555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:53,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51907 states to 51907 states and 73555 transitions. [2024-11-27 23:31:53,223 INFO L78 Accepts]: Start accepts. Automaton has 51907 states and 73555 transitions. Word has length 92 [2024-11-27 23:31:53,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:53,223 INFO L471 AbstractCegarLoop]: Abstraction has 51907 states and 73555 transitions. [2024-11-27 23:31:53,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:53,223 INFO L276 IsEmpty]: Start isEmpty. Operand 51907 states and 73555 transitions. [2024-11-27 23:31:53,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-27 23:31:53,226 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:53,226 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:53,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:31:53,226 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:53,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:53,227 INFO L85 PathProgramCache]: Analyzing trace with hash -821532615, now seen corresponding path program 1 times [2024-11-27 23:31:53,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:53,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289461973] [2024-11-27 23:31:53,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:53,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:53,368 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:53,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:53,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289461973] [2024-11-27 23:31:53,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289461973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:53,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:53,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:53,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085275550] [2024-11-27 23:31:53,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:53,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:53,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:53,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:53,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:53,370 INFO L87 Difference]: Start difference. First operand 51907 states and 73555 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:55,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:55,111 INFO L93 Difference]: Finished difference Result 101511 states and 143509 transitions. [2024-11-27 23:31:55,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:55,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-27 23:31:55,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:55,149 INFO L225 Difference]: With dead ends: 101511 [2024-11-27 23:31:55,149 INFO L226 Difference]: Without dead ends: 51909 [2024-11-27 23:31:55,165 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 [2024-11-27 23:31:55,165 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 53 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:55,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3157 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:55,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51909 states. [2024-11-27 23:31:56,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51909 to 51907. [2024-11-27 23:31:56,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51907 states, 51905 states have (on average 1.4038531933339755) internal successors, (72867), 51906 states have internal predecessors, (72867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:56,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51907 states to 51907 states and 72867 transitions. [2024-11-27 23:31:56,830 INFO L78 Accepts]: Start accepts. Automaton has 51907 states and 72867 transitions. Word has length 93 [2024-11-27 23:31:56,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:56,830 INFO L471 AbstractCegarLoop]: Abstraction has 51907 states and 72867 transitions. [2024-11-27 23:31:56,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:56,830 INFO L276 IsEmpty]: Start isEmpty. Operand 51907 states and 72867 transitions. [2024-11-27 23:31:56,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-27 23:31:56,832 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:56,832 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:56,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 23:31:56,832 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:56,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:56,834 INFO L85 PathProgramCache]: Analyzing trace with hash -513089126, now seen corresponding path program 1 times [2024-11-27 23:31:56,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:56,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576982763] [2024-11-27 23:31:56,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:56,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:56,935 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:56,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:56,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576982763] [2024-11-27 23:31:56,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576982763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:56,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:56,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:56,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006535776] [2024-11-27 23:31:56,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:56,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:56,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:56,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:56,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:56,937 INFO L87 Difference]: Start difference. First operand 51907 states and 72867 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:57,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:57,518 INFO L93 Difference]: Finished difference Result 70173 states and 98572 transitions. [2024-11-27 23:31:57,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:57,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-27 23:31:57,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:57,538 INFO L225 Difference]: With dead ends: 70173 [2024-11-27 23:31:57,538 INFO L226 Difference]: Without dead ends: 20571 [2024-11-27 23:31:57,562 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 [2024-11-27 23:31:57,563 INFO L435 NwaCegarLoop]: 1604 mSDtfsCounter, 47 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:57,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3154 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:57,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20571 states. [2024-11-27 23:31:58,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20571 to 20562. [2024-11-27 23:31:58,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20562 states, 20560 states have (on average 1.4133268482490273) internal successors, (29058), 20561 states have internal predecessors, (29058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:58,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20562 states to 20562 states and 29058 transitions. [2024-11-27 23:31:58,305 INFO L78 Accepts]: Start accepts. Automaton has 20562 states and 29058 transitions. Word has length 94 [2024-11-27 23:31:58,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:58,306 INFO L471 AbstractCegarLoop]: Abstraction has 20562 states and 29058 transitions. [2024-11-27 23:31:58,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:58,306 INFO L276 IsEmpty]: Start isEmpty. Operand 20562 states and 29058 transitions. [2024-11-27 23:31:58,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-27 23:31:58,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:58,308 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:58,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 23:31:58,308 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:58,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:58,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1679011147, now seen corresponding path program 1 times [2024-11-27 23:31:58,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:58,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032660820] [2024-11-27 23:31:58,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:58,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:58,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:58,450 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:58,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:58,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032660820] [2024-11-27 23:31:58,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032660820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:58,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:58,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:58,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626459341] [2024-11-27 23:31:58,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:58,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:58,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:58,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:58,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:58,453 INFO L87 Difference]: Start difference. First operand 20562 states and 29058 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:58,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:58,942 INFO L93 Difference]: Finished difference Result 29686 states and 41780 transitions. [2024-11-27 23:31:58,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:58,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-27 23:31:58,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:58,952 INFO L225 Difference]: With dead ends: 29686 [2024-11-27 23:31:58,952 INFO L226 Difference]: Without dead ends: 11444 [2024-11-27 23:31:58,958 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 [2024-11-27 23:31:58,959 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 49 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:58,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3133 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:58,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11444 states. [2024-11-27 23:31:59,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11444 to 11442. [2024-11-27 23:31:59,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11442 states, 11440 states have (on average 1.4176573426573427) internal successors, (16218), 11441 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:59,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11442 states to 11442 states and 16218 transitions. [2024-11-27 23:31:59,165 INFO L78 Accepts]: Start accepts. Automaton has 11442 states and 16218 transitions. Word has length 95 [2024-11-27 23:31:59,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:59,165 INFO L471 AbstractCegarLoop]: Abstraction has 11442 states and 16218 transitions. [2024-11-27 23:31:59,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:59,166 INFO L276 IsEmpty]: Start isEmpty. Operand 11442 states and 16218 transitions. [2024-11-27 23:31:59,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 23:31:59,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:59,166 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:59,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 23:31:59,167 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:59,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:59,167 INFO L85 PathProgramCache]: Analyzing trace with hash -105500451, now seen corresponding path program 1 times [2024-11-27 23:31:59,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:59,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969329372] [2024-11-27 23:31:59,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:59,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:59,263 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:59,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:59,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969329372] [2024-11-27 23:31:59,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969329372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:59,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:59,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:59,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95544924] [2024-11-27 23:31:59,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:59,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:59,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:59,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:59,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:59,265 INFO L87 Difference]: Start difference. First operand 11442 states and 16218 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:59,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:59,447 INFO L93 Difference]: Finished difference Result 16006 states and 22520 transitions. [2024-11-27 23:31:59,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:59,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2024-11-27 23:31:59,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:59,458 INFO L225 Difference]: With dead ends: 16006 [2024-11-27 23:31:59,458 INFO L226 Difference]: Without dead ends: 6884 [2024-11-27 23:31:59,464 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 [2024-11-27 23:31:59,465 INFO L435 NwaCegarLoop]: 1591 mSDtfsCounter, 46 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:59,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:59,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2024-11-27 23:31:59,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 6882. [2024-11-27 23:31:59,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6882 states, 6880 states have (on average 1.4328488372093022) internal successors, (9858), 6881 states have internal predecessors, (9858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:59,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6882 states to 6882 states and 9858 transitions. [2024-11-27 23:31:59,742 INFO L78 Accepts]: Start accepts. Automaton has 6882 states and 9858 transitions. Word has length 97 [2024-11-27 23:31:59,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:59,742 INFO L471 AbstractCegarLoop]: Abstraction has 6882 states and 9858 transitions. [2024-11-27 23:31:59,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:59,742 INFO L276 IsEmpty]: Start isEmpty. Operand 6882 states and 9858 transitions. [2024-11-27 23:31:59,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-27 23:31:59,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:59,744 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:59,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 23:31:59,744 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:59,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:59,745 INFO L85 PathProgramCache]: Analyzing trace with hash 887952111, now seen corresponding path program 1 times [2024-11-27 23:31:59,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:59,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024266664] [2024-11-27 23:31:59,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:59,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:59,882 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:59,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:59,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024266664] [2024-11-27 23:31:59,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024266664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:59,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:59,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:59,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162647420] [2024-11-27 23:31:59,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:59,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:59,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:59,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:59,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:59,884 INFO L87 Difference]: Start difference. First operand 6882 states and 9858 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:00,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:00,026 INFO L93 Difference]: Finished difference Result 9166 states and 12980 transitions. [2024-11-27 23:32:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:00,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2024-11-27 23:32:00,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:00,034 INFO L225 Difference]: With dead ends: 9166 [2024-11-27 23:32:00,034 INFO L226 Difference]: Without dead ends: 4604 [2024-11-27 23:32:00,038 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 [2024-11-27 23:32:00,039 INFO L435 NwaCegarLoop]: 1584 mSDtfsCounter, 43 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:00,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3103 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:32:00,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2024-11-27 23:32:00,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 4602. [2024-11-27 23:32:00,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4602 states, 4600 states have (on average 1.4582608695652175) internal successors, (6708), 4601 states have internal predecessors, (6708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 6708 transitions. [2024-11-27 23:32:00,150 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 6708 transitions. Word has length 99 [2024-11-27 23:32:00,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:00,151 INFO L471 AbstractCegarLoop]: Abstraction has 4602 states and 6708 transitions. [2024-11-27 23:32:00,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:00,151 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 6708 transitions. [2024-11-27 23:32:00,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-27 23:32:00,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:00,152 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:00,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-27 23:32:00,152 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:00,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:00,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1167946625, now seen corresponding path program 1 times [2024-11-27 23:32:00,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:00,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906575177] [2024-11-27 23:32:00,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:00,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:00,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:00,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906575177] [2024-11-27 23:32:00,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906575177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:00,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:00,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:32:00,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821831343] [2024-11-27 23:32:00,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:00,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:32:00,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:00,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:32:00,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:32:00,325 INFO L87 Difference]: Start difference. First operand 4602 states and 6708 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:00,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:00,388 INFO L93 Difference]: Finished difference Result 5746 states and 8255 transitions. [2024-11-27 23:32:00,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:00,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-27 23:32:00,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:00,393 INFO L225 Difference]: With dead ends: 5746 [2024-11-27 23:32:00,394 INFO L226 Difference]: Without dead ends: 3464 [2024-11-27 23:32:00,395 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 [2024-11-27 23:32:00,395 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 40 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:00,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3088 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:32:00,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3464 states. [2024-11-27 23:32:00,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3464 to 3462. [2024-11-27 23:32:00,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 3460 states have (on average 1.4878612716763007) internal successors, (5148), 3461 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:00,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 5148 transitions. [2024-11-27 23:32:00,468 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 5148 transitions. Word has length 101 [2024-11-27 23:32:00,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:00,469 INFO L471 AbstractCegarLoop]: Abstraction has 3462 states and 5148 transitions. [2024-11-27 23:32:00,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:00,469 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 5148 transitions. [2024-11-27 23:32:00,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-27 23:32:00,470 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:00,470 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:00,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-27 23:32:00,470 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:00,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:00,471 INFO L85 PathProgramCache]: Analyzing trace with hash 2022994579, now seen corresponding path program 1 times [2024-11-27 23:32:00,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:00,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517241428] [2024-11-27 23:32:00,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:00,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:01,631 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:01,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:01,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517241428] [2024-11-27 23:32:01,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517241428] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:01,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030561324] [2024-11-27 23:32:01,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:01,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:01,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:01,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:01,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:32:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:01,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 23:32:01,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:02,257 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:02,257 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:03,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030561324] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:03,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:03,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 6] total 22 [2024-11-27 23:32:03,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291252470] [2024-11-27 23:32:03,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:03,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 23:32:03,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:03,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 23:32:03,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:32:03,011 INFO L87 Difference]: Start difference. First operand 3462 states and 5148 transitions. Second operand has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:10,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:10,785 INFO L93 Difference]: Finished difference Result 14310 states and 19486 transitions. [2024-11-27 23:32:10,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-11-27 23:32:10,786 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 0 states have call successors, (0), 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 103 [2024-11-27 23:32:10,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:10,799 INFO L225 Difference]: With dead ends: 14310 [2024-11-27 23:32:10,799 INFO L226 Difference]: Without dead ends: 13070 [2024-11-27 23:32:10,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4236 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=1877, Invalid=9679, Unknown=0, NotChecked=0, Total=11556 [2024-11-27 23:32:10,805 INFO L435 NwaCegarLoop]: 1551 mSDtfsCounter, 19916 mSDsluCounter, 8243 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19916 SdHoareTripleChecker+Valid, 9794 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:10,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19916 Valid, 9794 Invalid, 1926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1834 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 23:32:10,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13070 states. [2024-11-27 23:32:11,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13070 to 12008. [2024-11-27 23:32:11,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12008 states, 12006 states have (on average 1.3629018823921373) internal successors, (16363), 12007 states have internal predecessors, (16363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:11,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12008 states to 12008 states and 16363 transitions. [2024-11-27 23:32:11,090 INFO L78 Accepts]: Start accepts. Automaton has 12008 states and 16363 transitions. Word has length 103 [2024-11-27 23:32:11,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:11,090 INFO L471 AbstractCegarLoop]: Abstraction has 12008 states and 16363 transitions. [2024-11-27 23:32:11,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:11,091 INFO L276 IsEmpty]: Start isEmpty. Operand 12008 states and 16363 transitions. [2024-11-27 23:32:11,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-27 23:32:11,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:11,092 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:11,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:32:11,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-27 23:32:11,293 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:11,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:11,293 INFO L85 PathProgramCache]: Analyzing trace with hash -479777408, now seen corresponding path program 1 times [2024-11-27 23:32:11,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:11,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751956195] [2024-11-27 23:32:11,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:11,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:12,170 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:12,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:12,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751956195] [2024-11-27 23:32:12,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751956195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:12,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761635975] [2024-11-27 23:32:12,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:12,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:12,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:12,172 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:12,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:32:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:12,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 23:32:12,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:13,060 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:13,061 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:14,499 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:14,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761635975] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:14,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:14,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-11-27 23:32:14,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045330975] [2024-11-27 23:32:14,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:14,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-27 23:32:14,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:14,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-27 23:32:14,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=702, Unknown=0, NotChecked=0, Total=812 [2024-11-27 23:32:14,501 INFO L87 Difference]: Start difference. First operand 12008 states and 16363 transitions. Second operand has 29 states, 29 states have (on average 9.172413793103448) internal successors, (266), 28 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:16,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:16,755 INFO L93 Difference]: Finished difference Result 48130 states and 63751 transitions. [2024-11-27 23:32:16,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-27 23:32:16,755 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.172413793103448) internal successors, (266), 28 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-27 23:32:16,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:16,780 INFO L225 Difference]: With dead ends: 48130 [2024-11-27 23:32:16,780 INFO L226 Difference]: Without dead ends: 38592 [2024-11-27 23:32:16,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=647, Invalid=2433, Unknown=0, NotChecked=0, Total=3080 [2024-11-27 23:32:16,788 INFO L435 NwaCegarLoop]: 1523 mSDtfsCounter, 18031 mSDsluCounter, 8051 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18031 SdHoareTripleChecker+Valid, 9574 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:16,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18031 Valid, 9574 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:32:16,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38592 states. [2024-11-27 23:32:18,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38592 to 38580. [2024-11-27 23:32:18,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38580 states, 38578 states have (on average 1.3175384934418581) internal successors, (50828), 38579 states have internal predecessors, (50828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:18,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38580 states to 38580 states and 50828 transitions. [2024-11-27 23:32:18,199 INFO L78 Accepts]: Start accepts. Automaton has 38580 states and 50828 transitions. Word has length 104 [2024-11-27 23:32:18,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:18,199 INFO L471 AbstractCegarLoop]: Abstraction has 38580 states and 50828 transitions. [2024-11-27 23:32:18,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.172413793103448) internal successors, (266), 28 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:18,199 INFO L276 IsEmpty]: Start isEmpty. Operand 38580 states and 50828 transitions. [2024-11-27 23:32:18,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-27 23:32:18,201 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:18,201 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:18,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:18,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-27 23:32:18,402 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:18,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:18,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1353120014, now seen corresponding path program 1 times [2024-11-27 23:32:18,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:18,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128523284] [2024-11-27 23:32:18,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:18,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:18,923 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:18,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:18,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128523284] [2024-11-27 23:32:18,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128523284] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:18,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770799122] [2024-11-27 23:32:18,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:18,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:18,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:18,926 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:18,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:32:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:19,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 23:32:19,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:19,708 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:19,708 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:20,639 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:20,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770799122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:20,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:20,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-27 23:32:20,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847683129] [2024-11-27 23:32:20,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:20,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 23:32:20,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:20,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 23:32:20,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:32:20,641 INFO L87 Difference]: Start difference. First operand 38580 states and 50828 transitions. Second operand has 21 states, 21 states have (on average 10.857142857142858) internal successors, (228), 20 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:22,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:22,841 INFO L93 Difference]: Finished difference Result 81650 states and 106775 transitions. [2024-11-27 23:32:22,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:32:22,841 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 10.857142857142858) internal successors, (228), 20 states have internal predecessors, (228), 0 states have call successors, (0), 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 104 [2024-11-27 23:32:22,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:22,875 INFO L225 Difference]: With dead ends: 81650 [2024-11-27 23:32:22,875 INFO L226 Difference]: Without dead ends: 45492 [2024-11-27 23:32:22,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2024-11-27 23:32:22,894 INFO L435 NwaCegarLoop]: 1551 mSDtfsCounter, 16942 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16942 SdHoareTripleChecker+Valid, 4840 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:22,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16942 Valid, 4840 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:32:22,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45492 states. [2024-11-27 23:32:24,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45492 to 45296. [2024-11-27 23:32:24,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45296 states, 45294 states have (on average 1.3061332626837991) internal successors, (59160), 45295 states have internal predecessors, (59160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:24,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45296 states to 45296 states and 59160 transitions. [2024-11-27 23:32:24,430 INFO L78 Accepts]: Start accepts. Automaton has 45296 states and 59160 transitions. Word has length 104 [2024-11-27 23:32:24,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:24,430 INFO L471 AbstractCegarLoop]: Abstraction has 45296 states and 59160 transitions. [2024-11-27 23:32:24,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.857142857142858) internal successors, (228), 20 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:24,430 INFO L276 IsEmpty]: Start isEmpty. Operand 45296 states and 59160 transitions. [2024-11-27 23:32:24,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-27 23:32:24,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:24,432 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:24,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:24,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-27 23:32:24,632 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:24,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:24,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1281508622, now seen corresponding path program 1 times [2024-11-27 23:32:24,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:24,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131808443] [2024-11-27 23:32:24,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:24,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:25,072 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:25,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:25,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131808443] [2024-11-27 23:32:25,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131808443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:25,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004761333] [2024-11-27 23:32:25,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:25,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:25,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:25,074 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:25,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:32:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:25,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-27 23:32:25,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:26,576 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:26,576 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:28,487 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:28,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004761333] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:28,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:28,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 12] total 32 [2024-11-27 23:32:28,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658406750] [2024-11-27 23:32:28,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:28,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-27 23:32:28,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:28,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-27 23:32:28,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=858, Unknown=0, NotChecked=0, Total=992 [2024-11-27 23:32:28,489 INFO L87 Difference]: Start difference. First operand 45296 states and 59160 transitions. Second operand has 32 states, 32 states have (on average 8.875) internal successors, (284), 32 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:40,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:40,980 INFO L93 Difference]: Finished difference Result 176486 states and 229447 transitions. [2024-11-27 23:32:40,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-27 23:32:40,981 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.875) internal successors, (284), 32 states have internal predecessors, (284), 0 states have call successors, (0), 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 104 [2024-11-27 23:32:40,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:41,119 INFO L225 Difference]: With dead ends: 176486 [2024-11-27 23:32:41,119 INFO L226 Difference]: Without dead ends: 133614 [2024-11-27 23:32:41,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2853 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1839, Invalid=7863, Unknown=0, NotChecked=0, Total=9702 [2024-11-27 23:32:41,151 INFO L435 NwaCegarLoop]: 1536 mSDtfsCounter, 27986 mSDsluCounter, 11438 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27986 SdHoareTripleChecker+Valid, 12974 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:41,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27986 Valid, 12974 Invalid, 1543 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [99 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 23:32:41,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133614 states. [2024-11-27 23:32:46,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133614 to 125746. [2024-11-27 23:32:46,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125746 states, 125744 states have (on average 1.2760767909403232) internal successors, (160459), 125745 states have internal predecessors, (160459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:47,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125746 states to 125746 states and 160459 transitions. [2024-11-27 23:32:47,126 INFO L78 Accepts]: Start accepts. Automaton has 125746 states and 160459 transitions. Word has length 104 [2024-11-27 23:32:47,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:47,127 INFO L471 AbstractCegarLoop]: Abstraction has 125746 states and 160459 transitions. [2024-11-27 23:32:47,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.875) internal successors, (284), 32 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:47,127 INFO L276 IsEmpty]: Start isEmpty. Operand 125746 states and 160459 transitions. [2024-11-27 23:32:47,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-27 23:32:47,129 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:47,129 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:47,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:32:47,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 23:32:47,330 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:47,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:47,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1317438014, now seen corresponding path program 1 times [2024-11-27 23:32:47,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:47,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19995376] [2024-11-27 23:32:47,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:47,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:47,764 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:47,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:47,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19995376] [2024-11-27 23:32:47,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19995376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:47,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36924090] [2024-11-27 23:32:47,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:47,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:47,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:47,768 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:47,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccc9b32-5c1e-4f35-8f41-544e086e9a27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:32:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:47,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 23:32:47,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:49,580 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:49,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:50,620 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:50,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36924090] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:50,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:50,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 28 [2024-11-27 23:32:50,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818565138] [2024-11-27 23:32:50,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:50,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-27 23:32:50,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:50,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-27 23:32:50,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2024-11-27 23:32:50,623 INFO L87 Difference]: Start difference. First operand 125746 states and 160459 transitions. Second operand has 28 states, 28 states have (on average 10.071428571428571) internal successors, (282), 28 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:59,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:59,390 INFO L93 Difference]: Finished difference Result 242675 states and 309542 transitions. [2024-11-27 23:32:59,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-27 23:32:59,391 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 10.071428571428571) internal successors, (282), 28 states have internal predecessors, (282), 0 states have call successors, (0), 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 106 [2024-11-27 23:32:59,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:59,514 INFO L225 Difference]: With dead ends: 242675 [2024-11-27 23:32:59,514 INFO L226 Difference]: Without dead ends: 123997 [2024-11-27 23:32:59,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 803 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=782, Invalid=3000, Unknown=0, NotChecked=0, Total=3782 [2024-11-27 23:32:59,557 INFO L435 NwaCegarLoop]: 1532 mSDtfsCounter, 18978 mSDsluCounter, 15351 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18978 SdHoareTripleChecker+Valid, 16883 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:59,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18978 Valid, 16883 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:32:59,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123997 states.