./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1 --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 64bit --witnessprinter.graph.data.programhash 9ae6b5b338b731b5177e6d265b9da93e2ea955d36981e57412e1c26abe293401 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:31:25,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:31:25,305 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 14:31:25,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:31:25,309 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:31:25,334 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:31:25,335 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:31:25,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:31:25,335 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:31:25,335 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:31:25,336 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:31:25,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:31:25,336 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:31:25,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:31:25,337 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:31:25,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:31:25,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:31:25,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:31:25,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:31:25,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:31:25,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:31:25,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:31:25,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:31:25,338 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:31:25,338 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:31:25,338 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:31:25,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:31:25,338 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:31:25,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:31:25,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:31:25,339 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:31:25,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:31:25,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:31:25,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:31:25,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:31:25,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:31:25,340 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:31:25,340 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:31:25,340 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:31:25,340 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:31:25,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:31:25,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:31:25,340 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:31:25,340 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:31:25,341 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:31:25,341 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_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ae6b5b338b731b5177e6d265b9da93e2ea955d36981e57412e1c26abe293401 [2024-12-02 14:31:25,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:31:25,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:31:25,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:31:25,622 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:31:25,622 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:31:25,624 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-back-serstep.c [2024-12-02 14:31:28,857 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1/data/ab3671d0d/d2fcd07c8a0d4d94804f8b33c9f8be2c/FLAGd38a141b3 [2024-12-02 14:31:29,354 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:31:29,355 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-back-serstep.c [2024-12-02 14:31:29,385 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1/data/ab3671d0d/d2fcd07c8a0d4d94804f8b33c9f8be2c/FLAGd38a141b3 [2024-12-02 14:31:29,447 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1/data/ab3671d0d/d2fcd07c8a0d4d94804f8b33c9f8be2c [2024-12-02 14:31:29,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:31:29,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:31:29,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:31:29,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:31:29,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:31:29,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:31:29" (1/1) ... [2024-12-02 14:31:29,458 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@299b8ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:29, skipping insertion in model container [2024-12-02 14:31:29,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:31:29" (1/1) ... [2024-12-02 14:31:29,544 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:31:29,754 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_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-back-serstep.c[1177,1190] [2024-12-02 14:31:30,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:31:30,467 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:31:30,476 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_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-back-serstep.c[1177,1190] [2024-12-02 14:31:30,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:31:30,850 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:31:30,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30 WrapperNode [2024-12-02 14:31:30,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:31:30,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:31:30,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:31:30,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:31:30,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30" (1/1) ... [2024-12-02 14:31:30,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30" (1/1) ... [2024-12-02 14:31:32,562 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 18222 [2024-12-02 14:31:32,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:31:32,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:31:32,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:31:32,564 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:31:32,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30" (1/1) ... [2024-12-02 14:31:32,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30" (1/1) ... [2024-12-02 14:31:32,888 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30" (1/1) ... [2024-12-02 14:31:33,075 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]. [2024-12-02 14:31:33,076 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30" (1/1) ... [2024-12-02 14:31:33,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30" (1/1) ... [2024-12-02 14:31:33,583 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30" (1/1) ... [2024-12-02 14:31:33,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30" (1/1) ... [2024-12-02 14:31:33,702 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30" (1/1) ... [2024-12-02 14:31:33,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30" (1/1) ... [2024-12-02 14:31:33,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30" (1/1) ... [2024-12-02 14:31:34,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:31:34,013 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:31:34,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:31:34,013 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:31:34,014 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30" (1/1) ... [2024-12-02 14:31:34,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:31:34,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:31:34,051 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:31:34,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4f6c8d-84c7-4348-8eff-d0d189a56d20/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:31:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:31:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:31:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:31:34,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:31:35,108 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:31:35,110 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:32:17,357 INFO L? ?]: Removed 9809 outVars from TransFormulas that were not future-live. [2024-12-02 14:32:17,357 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:32:17,434 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:32:17,434 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 14:32:17,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:32:17 BoogieIcfgContainer [2024-12-02 14:32:17,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:32:17,437 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:32:17,438 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:32:17,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:32:17,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:31:29" (1/3) ... [2024-12-02 14:32:17,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62be8d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:32:17, skipping insertion in model container [2024-12-02 14:32:17,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:30" (2/3) ... [2024-12-02 14:32:17,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62be8d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:32:17, skipping insertion in model container [2024-12-02 14:32:17,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:32:17" (3/3) ... [2024-12-02 14:32:17,445 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.2.prop1-back-serstep.c [2024-12-02 14:32:17,462 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:32:17,463 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.telephony.2.prop1-back-serstep.c that has 1 procedures, 6408 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:32:17,612 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:32:17,625 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;@5a92b3d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:32:17,625 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:32:17,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 6408 states, 6406 states have (on average 1.5040586949734625) internal successors, (9635), 6407 states have internal predecessors, (9635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:17,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2024-12-02 14:32:17,678 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:32:17,679 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:32:17,679 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:32:17,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:32:17,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1612200783, now seen corresponding path program 1 times [2024-12-02 14:32:17,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:32:17,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291229828] [2024-12-02 14:32:17,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:32:17,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:32:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:32:19,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:32:19,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:32:19,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291229828] [2024-12-02 14:32:19,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291229828] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:32:19,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:32:19,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:32:19,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731048883] [2024-12-02 14:32:19,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:32:19,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:32:19,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:32:19,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:32:19,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:32:19,739 INFO L87 Difference]: Start difference. First operand has 6408 states, 6406 states have (on average 1.5040586949734625) internal successors, (9635), 6407 states have internal predecessors, (9635), 0 states have call successors, (0), 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 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:20,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:32:20,008 INFO L93 Difference]: Finished difference Result 12589 states and 18933 transitions. [2024-12-02 14:32:20,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:32:20,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 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 521 [2024-12-02 14:32:20,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:32:20,040 INFO L225 Difference]: With dead ends: 12589 [2024-12-02 14:32:20,040 INFO L226 Difference]: Without dead ends: 6407 [2024-12-02 14:32:20,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:32:20,052 INFO L435 NwaCegarLoop]: 9629 mSDtfsCounter, 0 mSDsluCounter, 19252 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28881 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:32:20,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28881 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:32:20,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6407 states. [2024-12-02 14:32:20,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6407 to 6407. [2024-12-02 14:32:20,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6407 states, 6406 states have (on average 1.5037464876678115) internal successors, (9633), 6406 states have internal predecessors, (9633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:20,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6407 states to 6407 states and 9633 transitions. [2024-12-02 14:32:20,210 INFO L78 Accepts]: Start accepts. Automaton has 6407 states and 9633 transitions. Word has length 521 [2024-12-02 14:32:20,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:32:20,211 INFO L471 AbstractCegarLoop]: Abstraction has 6407 states and 9633 transitions. [2024-12-02 14:32:20,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:20,212 INFO L276 IsEmpty]: Start isEmpty. Operand 6407 states and 9633 transitions. [2024-12-02 14:32:20,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-12-02 14:32:20,219 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:32:20,220 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:32:20,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:32:20,220 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:32:20,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:32:20,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1563081786, now seen corresponding path program 1 times [2024-12-02 14:32:20,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:32:20,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675140747] [2024-12-02 14:32:20,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:32:20,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:32:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:32:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:32:21,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:32:21,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675140747] [2024-12-02 14:32:21,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675140747] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:32:21,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:32:21,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:32:21,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081364120] [2024-12-02 14:32:21,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:32:21,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:32:21,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:32:21,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:32:21,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:32:21,704 INFO L87 Difference]: Start difference. First operand 6407 states and 9633 transitions. Second operand has 4 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:21,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:32:21,970 INFO L93 Difference]: Finished difference Result 12590 states and 18931 transitions. [2024-12-02 14:32:21,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:32:21,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 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 522 [2024-12-02 14:32:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:32:21,998 INFO L225 Difference]: With dead ends: 12590 [2024-12-02 14:32:21,998 INFO L226 Difference]: Without dead ends: 6409 [2024-12-02 14:32:22,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:32:22,005 INFO L435 NwaCegarLoop]: 9629 mSDtfsCounter, 0 mSDsluCounter, 19248 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28877 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:32:22,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28877 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:32:22,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6409 states. [2024-12-02 14:32:22,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6409 to 6409. [2024-12-02 14:32:22,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6409 states, 6408 states have (on average 1.5035892634207242) internal successors, (9635), 6408 states have internal predecessors, (9635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:22,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6409 states to 6409 states and 9635 transitions. [2024-12-02 14:32:22,157 INFO L78 Accepts]: Start accepts. Automaton has 6409 states and 9635 transitions. Word has length 522 [2024-12-02 14:32:22,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:32:22,158 INFO L471 AbstractCegarLoop]: Abstraction has 6409 states and 9635 transitions. [2024-12-02 14:32:22,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:22,159 INFO L276 IsEmpty]: Start isEmpty. Operand 6409 states and 9635 transitions. [2024-12-02 14:32:22,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2024-12-02 14:32:22,171 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:32:22,171 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:32:22,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:32:22,172 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:32:22,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:32:22,172 INFO L85 PathProgramCache]: Analyzing trace with hash 112932522, now seen corresponding path program 1 times [2024-12-02 14:32:22,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:32:22,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258854858] [2024-12-02 14:32:22,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:32:22,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:32:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:32:23,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:32:23,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:32:23,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258854858] [2024-12-02 14:32:23,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258854858] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:32:23,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:32:23,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:32:23,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017715999] [2024-12-02 14:32:23,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:32:23,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:32:23,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:32:23,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:32:23,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:32:23,822 INFO L87 Difference]: Start difference. First operand 6409 states and 9635 transitions. Second operand has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:24,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:32:24,322 INFO L93 Difference]: Finished difference Result 18761 states and 28210 transitions. [2024-12-02 14:32:24,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:32:24,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 0 states have call successors, (0), 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 523 [2024-12-02 14:32:24,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:32:24,375 INFO L225 Difference]: With dead ends: 18761 [2024-12-02 14:32:24,375 INFO L226 Difference]: Without dead ends: 12578 [2024-12-02 14:32:24,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:32:24,387 INFO L435 NwaCegarLoop]: 9627 mSDtfsCounter, 9100 mSDsluCounter, 28538 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9100 SdHoareTripleChecker+Valid, 38165 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:32:24,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9100 Valid, 38165 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:32:24,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12578 states. [2024-12-02 14:32:24,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12578 to 7211. [2024-12-02 14:32:24,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7211 states, 7210 states have (on average 1.5030513176144245) internal successors, (10837), 7210 states have internal predecessors, (10837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:24,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7211 states to 7211 states and 10837 transitions. [2024-12-02 14:32:24,618 INFO L78 Accepts]: Start accepts. Automaton has 7211 states and 10837 transitions. Word has length 523 [2024-12-02 14:32:24,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:32:24,620 INFO L471 AbstractCegarLoop]: Abstraction has 7211 states and 10837 transitions. [2024-12-02 14:32:24,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:24,620 INFO L276 IsEmpty]: Start isEmpty. Operand 7211 states and 10837 transitions. [2024-12-02 14:32:24,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3533 [2024-12-02 14:32:24,731 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:32:24,733 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:32:24,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:32:24,734 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:32:24,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:32:24,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1816340110, now seen corresponding path program 1 times [2024-12-02 14:32:24,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:32:24,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264325295] [2024-12-02 14:32:24,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:32:24,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:32:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:32:38,346 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:32:38,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:32:38,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264325295] [2024-12-02 14:32:38,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264325295] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:32:38,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:32:38,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:32:38,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339507787] [2024-12-02 14:32:38,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:32:38,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:32:38,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:32:38,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:32:38,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:32:38,357 INFO L87 Difference]: Start difference. First operand 7211 states and 10837 transitions. Second operand has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:38,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:32:38,510 INFO L93 Difference]: Finished difference Result 13395 states and 20136 transitions. [2024-12-02 14:32:38,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:32:38,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 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 3532 [2024-12-02 14:32:38,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:32:38,540 INFO L225 Difference]: With dead ends: 13395 [2024-12-02 14:32:38,540 INFO L226 Difference]: Without dead ends: 7212 [2024-12-02 14:32:38,548 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 [2024-12-02 14:32:38,549 INFO L435 NwaCegarLoop]: 9630 mSDtfsCounter, 0 mSDsluCounter, 9624 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19254 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:32:38,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19254 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:32:38,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7212 states. [2024-12-02 14:32:38,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7212 to 7212. [2024-12-02 14:32:38,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7212 states, 7211 states have (on average 1.502981555956178) internal successors, (10838), 7211 states have internal predecessors, (10838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:38,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7212 states to 7212 states and 10838 transitions. [2024-12-02 14:32:38,731 INFO L78 Accepts]: Start accepts. Automaton has 7212 states and 10838 transitions. Word has length 3532 [2024-12-02 14:32:38,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:32:38,733 INFO L471 AbstractCegarLoop]: Abstraction has 7212 states and 10838 transitions. [2024-12-02 14:32:38,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:38,735 INFO L276 IsEmpty]: Start isEmpty. Operand 7212 states and 10838 transitions. [2024-12-02 14:32:38,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3533 [2024-12-02 14:32:38,853 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:32:38,856 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:32:38,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:32:38,857 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:32:38,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:32:38,862 INFO L85 PathProgramCache]: Analyzing trace with hash -2059647583, now seen corresponding path program 1 times [2024-12-02 14:32:38,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:32:38,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127193061] [2024-12-02 14:32:38,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:32:38,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:32:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:32:50,863 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:32:50,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:32:50,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127193061] [2024-12-02 14:32:50,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127193061] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:32:50,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:32:50,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:32:50,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314742862] [2024-12-02 14:32:50,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:32:50,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:32:50,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:32:50,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:32:50,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:32:50,870 INFO L87 Difference]: Start difference. First operand 7212 states and 10838 transitions. Second operand has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:50,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:32:50,966 INFO L93 Difference]: Finished difference Result 13397 states and 20138 transitions. [2024-12-02 14:32:50,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:32:50,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 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 3532 [2024-12-02 14:32:50,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:32:50,979 INFO L225 Difference]: With dead ends: 13397 [2024-12-02 14:32:50,979 INFO L226 Difference]: Without dead ends: 7213 [2024-12-02 14:32:50,984 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 [2024-12-02 14:32:50,985 INFO L435 NwaCegarLoop]: 9630 mSDtfsCounter, 0 mSDsluCounter, 9624 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19254 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:32:50,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19254 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:32:50,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7213 states. [2024-12-02 14:32:51,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7213 to 7213. [2024-12-02 14:32:51,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7213 states, 7212 states have (on average 1.5029118136439268) internal successors, (10839), 7212 states have internal predecessors, (10839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:51,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7213 states to 7213 states and 10839 transitions. [2024-12-02 14:32:51,088 INFO L78 Accepts]: Start accepts. Automaton has 7213 states and 10839 transitions. Word has length 3532 [2024-12-02 14:32:51,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:32:51,089 INFO L471 AbstractCegarLoop]: Abstraction has 7213 states and 10839 transitions. [2024-12-02 14:32:51,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:32:51,090 INFO L276 IsEmpty]: Start isEmpty. Operand 7213 states and 10839 transitions. [2024-12-02 14:32:51,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3533 [2024-12-02 14:32:51,155 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:32:51,157 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:32:51,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:32:51,157 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:32:51,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:32:51,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1304931600, now seen corresponding path program 1 times [2024-12-02 14:32:51,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:32:51,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864854640] [2024-12-02 14:32:51,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:32:51,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:32:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:01,426 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:33:01,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:33:01,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864854640] [2024-12-02 14:33:01,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864854640] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:01,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:33:01,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:33:01,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193846664] [2024-12-02 14:33:01,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:01,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:33:01,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:33:01,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:33:01,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:33:01,435 INFO L87 Difference]: Start difference. First operand 7213 states and 10839 transitions. Second operand has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:01,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:01,543 INFO L93 Difference]: Finished difference Result 13399 states and 20140 transitions. [2024-12-02 14:33:01,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:33:01,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 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 3532 [2024-12-02 14:33:01,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:01,561 INFO L225 Difference]: With dead ends: 13399 [2024-12-02 14:33:01,561 INFO L226 Difference]: Without dead ends: 7214 [2024-12-02 14:33:01,568 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 [2024-12-02 14:33:01,568 INFO L435 NwaCegarLoop]: 9630 mSDtfsCounter, 0 mSDsluCounter, 9624 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19254 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:33:01,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19254 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:33:01,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7214 states. [2024-12-02 14:33:01,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7214 to 7214. [2024-12-02 14:33:01,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7214 states, 7213 states have (on average 1.5028420906696243) internal successors, (10840), 7213 states have internal predecessors, (10840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:01,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7214 states to 7214 states and 10840 transitions. [2024-12-02 14:33:01,688 INFO L78 Accepts]: Start accepts. Automaton has 7214 states and 10840 transitions. Word has length 3532 [2024-12-02 14:33:01,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:01,690 INFO L471 AbstractCegarLoop]: Abstraction has 7214 states and 10840 transitions. [2024-12-02 14:33:01,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:01,691 INFO L276 IsEmpty]: Start isEmpty. Operand 7214 states and 10840 transitions. [2024-12-02 14:33:01,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3533 [2024-12-02 14:33:01,845 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:01,847 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:33:01,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:33:01,848 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:01,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:01,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1677084033, now seen corresponding path program 1 times [2024-12-02 14:33:01,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:33:01,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26955966] [2024-12-02 14:33:01,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:01,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:33:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:12,452 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:33:12,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:33:12,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26955966] [2024-12-02 14:33:12,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26955966] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:12,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:33:12,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:33:12,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562651884] [2024-12-02 14:33:12,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:12,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:33:12,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:33:12,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:33:12,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:33:12,458 INFO L87 Difference]: Start difference. First operand 7214 states and 10840 transitions. Second operand has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:12,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:12,533 INFO L93 Difference]: Finished difference Result 13401 states and 20142 transitions. [2024-12-02 14:33:12,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:33:12,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 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 3532 [2024-12-02 14:33:12,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:12,545 INFO L225 Difference]: With dead ends: 13401 [2024-12-02 14:33:12,545 INFO L226 Difference]: Without dead ends: 7215 [2024-12-02 14:33:12,550 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 [2024-12-02 14:33:12,550 INFO L435 NwaCegarLoop]: 9630 mSDtfsCounter, 0 mSDsluCounter, 9624 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19254 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:33:12,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19254 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:33:12,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7215 states. [2024-12-02 14:33:12,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7215 to 7215. [2024-12-02 14:33:12,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7215 states, 7214 states have (on average 1.5027723870252288) internal successors, (10841), 7214 states have internal predecessors, (10841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:12,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7215 states to 7215 states and 10841 transitions. [2024-12-02 14:33:12,629 INFO L78 Accepts]: Start accepts. Automaton has 7215 states and 10841 transitions. Word has length 3532 [2024-12-02 14:33:12,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:12,629 INFO L471 AbstractCegarLoop]: Abstraction has 7215 states and 10841 transitions. [2024-12-02 14:33:12,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:12,631 INFO L276 IsEmpty]: Start isEmpty. Operand 7215 states and 10841 transitions. [2024-12-02 14:33:12,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3533 [2024-12-02 14:33:12,694 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:12,695 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:33:12,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:33:12,696 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:12,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:12,698 INFO L85 PathProgramCache]: Analyzing trace with hash -251152912, now seen corresponding path program 1 times [2024-12-02 14:33:12,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:33:12,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415825504] [2024-12-02 14:33:12,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:12,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:33:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:24,629 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:33:24,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:33:24,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415825504] [2024-12-02 14:33:24,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415825504] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:24,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:33:24,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:33:24,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566715181] [2024-12-02 14:33:24,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:24,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:33:24,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:33:24,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:33:24,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:33:24,639 INFO L87 Difference]: Start difference. First operand 7215 states and 10841 transitions. Second operand has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:24,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:24,716 INFO L93 Difference]: Finished difference Result 13403 states and 20144 transitions. [2024-12-02 14:33:24,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:33:24,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 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 3532 [2024-12-02 14:33:24,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:24,735 INFO L225 Difference]: With dead ends: 13403 [2024-12-02 14:33:24,735 INFO L226 Difference]: Without dead ends: 7216 [2024-12-02 14:33:24,742 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 [2024-12-02 14:33:24,742 INFO L435 NwaCegarLoop]: 9630 mSDtfsCounter, 0 mSDsluCounter, 9624 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19254 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:33:24,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19254 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:33:24,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7216 states. [2024-12-02 14:33:24,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7216 to 7216. [2024-12-02 14:33:24,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7216 states, 7215 states have (on average 1.5027027027027027) internal successors, (10842), 7215 states have internal predecessors, (10842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:24,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7216 states to 7216 states and 10842 transitions. [2024-12-02 14:33:24,922 INFO L78 Accepts]: Start accepts. Automaton has 7216 states and 10842 transitions. Word has length 3532 [2024-12-02 14:33:24,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:24,923 INFO L471 AbstractCegarLoop]: Abstraction has 7216 states and 10842 transitions. [2024-12-02 14:33:24,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:24,924 INFO L276 IsEmpty]: Start isEmpty. Operand 7216 states and 10842 transitions. [2024-12-02 14:33:24,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3533 [2024-12-02 14:33:24,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:24,984 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:33:24,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:33:24,985 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:24,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:24,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2060986273, now seen corresponding path program 1 times [2024-12-02 14:33:24,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:33:24,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790798407] [2024-12-02 14:33:24,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:24,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:33:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:37,024 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-12-02 14:33:37,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:33:37,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790798407] [2024-12-02 14:33:37,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790798407] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:37,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:33:37,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:33:37,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169699699] [2024-12-02 14:33:37,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:37,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:33:37,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:33:37,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:33:37,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:33:37,030 INFO L87 Difference]: Start difference. First operand 7216 states and 10842 transitions. Second operand has 5 states, 5 states have (on average 626.6) internal successors, (3133), 5 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:37,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:37,175 INFO L93 Difference]: Finished difference Result 13408 states and 20149 transitions. [2024-12-02 14:33:37,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:33:37,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 626.6) internal successors, (3133), 5 states have internal predecessors, (3133), 0 states have call successors, (0), 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 3532 [2024-12-02 14:33:37,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:37,190 INFO L225 Difference]: With dead ends: 13408 [2024-12-02 14:33:37,190 INFO L226 Difference]: Without dead ends: 7220 [2024-12-02 14:33:37,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:33:37,196 INFO L435 NwaCegarLoop]: 9629 mSDtfsCounter, 0 mSDsluCounter, 28871 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38500 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:33:37,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38500 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:33:37,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7220 states. [2024-12-02 14:33:37,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7220 to 7216. [2024-12-02 14:33:37,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7216 states, 7215 states have (on average 1.5027027027027027) internal successors, (10842), 7215 states have internal predecessors, (10842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:37,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7216 states to 7216 states and 10842 transitions. [2024-12-02 14:33:37,306 INFO L78 Accepts]: Start accepts. Automaton has 7216 states and 10842 transitions. Word has length 3532 [2024-12-02 14:33:37,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:37,308 INFO L471 AbstractCegarLoop]: Abstraction has 7216 states and 10842 transitions. [2024-12-02 14:33:37,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 626.6) internal successors, (3133), 5 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:37,309 INFO L276 IsEmpty]: Start isEmpty. Operand 7216 states and 10842 transitions. [2024-12-02 14:33:37,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3534 [2024-12-02 14:33:37,403 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:37,405 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:33:37,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 14:33:37,406 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:37,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:37,409 INFO L85 PathProgramCache]: Analyzing trace with hash 374955178, now seen corresponding path program 1 times [2024-12-02 14:33:37,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:33:37,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429182696] [2024-12-02 14:33:37,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:37,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:33:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:49,191 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 398 trivial. 0 not checked. [2024-12-02 14:33:49,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:33:49,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429182696] [2024-12-02 14:33:49,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429182696] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:49,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:33:49,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:33:49,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581928823] [2024-12-02 14:33:49,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:49,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:33:49,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:33:49,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:33:49,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:33:49,198 INFO L87 Difference]: Start difference. First operand 7216 states and 10842 transitions. Second operand has 5 states, 5 states have (on average 627.2) internal successors, (3136), 5 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:49,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:49,418 INFO L93 Difference]: Finished difference Result 13412 states and 20155 transitions. [2024-12-02 14:33:49,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:33:49,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 627.2) internal successors, (3136), 5 states have internal predecessors, (3136), 0 states have call successors, (0), 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 3533 [2024-12-02 14:33:49,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:49,436 INFO L225 Difference]: With dead ends: 13412 [2024-12-02 14:33:49,436 INFO L226 Difference]: Without dead ends: 7220 [2024-12-02 14:33:49,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:33:49,443 INFO L435 NwaCegarLoop]: 9629 mSDtfsCounter, 0 mSDsluCounter, 28871 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38500 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:33:49,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38500 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:33:49,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7220 states. [2024-12-02 14:33:49,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7220 to 7218. [2024-12-02 14:33:49,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7218 states, 7217 states have (on average 1.502563391991132) internal successors, (10844), 7217 states have internal predecessors, (10844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:49,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7218 states to 7218 states and 10844 transitions. [2024-12-02 14:33:49,560 INFO L78 Accepts]: Start accepts. Automaton has 7218 states and 10844 transitions. Word has length 3533 [2024-12-02 14:33:49,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:49,564 INFO L471 AbstractCegarLoop]: Abstraction has 7218 states and 10844 transitions. [2024-12-02 14:33:49,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 627.2) internal successors, (3136), 5 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:33:49,565 INFO L276 IsEmpty]: Start isEmpty. Operand 7218 states and 10844 transitions. [2024-12-02 14:33:49,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3535 [2024-12-02 14:33:49,666 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:49,668 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:33:49,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 14:33:49,668 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:49,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:49,672 INFO L85 PathProgramCache]: Analyzing trace with hash -147094822, now seen corresponding path program 1 times [2024-12-02 14:33:49,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:33:49,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721760983] [2024-12-02 14:33:49,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:49,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:33:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:02,871 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2024-12-02 14:34:02,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:02,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721760983] [2024-12-02 14:34:02,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721760983] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:02,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:02,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:34:02,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903510785] [2024-12-02 14:34:02,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:02,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:34:02,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:02,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:34:02,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:34:02,876 INFO L87 Difference]: Start difference. First operand 7218 states and 10844 transitions. Second operand has 5 states, 5 states have (on average 627.8) internal successors, (3139), 5 states have internal predecessors, (3139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:03,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:34:03,010 INFO L93 Difference]: Finished difference Result 13420 states and 20165 transitions. [2024-12-02 14:34:03,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:34:03,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 627.8) internal successors, (3139), 5 states have internal predecessors, (3139), 0 states have call successors, (0), 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 3534 [2024-12-02 14:34:03,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:34:03,025 INFO L225 Difference]: With dead ends: 13420 [2024-12-02 14:34:03,025 INFO L226 Difference]: Without dead ends: 7222 [2024-12-02 14:34:03,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:34:03,031 INFO L435 NwaCegarLoop]: 9629 mSDtfsCounter, 0 mSDsluCounter, 19248 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28877 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:34:03,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28877 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:34:03,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7222 states. [2024-12-02 14:34:03,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7222 to 7220. [2024-12-02 14:34:03,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7220 states, 7219 states have (on average 1.5024241584707023) internal successors, (10846), 7219 states have internal predecessors, (10846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:03,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7220 states to 7220 states and 10846 transitions. [2024-12-02 14:34:03,137 INFO L78 Accepts]: Start accepts. Automaton has 7220 states and 10846 transitions. Word has length 3534 [2024-12-02 14:34:03,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:34:03,139 INFO L471 AbstractCegarLoop]: Abstraction has 7220 states and 10846 transitions. [2024-12-02 14:34:03,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 627.8) internal successors, (3139), 5 states have internal predecessors, (3139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:03,141 INFO L276 IsEmpty]: Start isEmpty. Operand 7220 states and 10846 transitions. [2024-12-02 14:34:03,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3536 [2024-12-02 14:34:03,310 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:34:03,312 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:34:03,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 14:34:03,312 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:34:03,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:03,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1098548721, now seen corresponding path program 1 times [2024-12-02 14:34:03,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:03,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495208647] [2024-12-02 14:34:03,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:03,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:15,484 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2024-12-02 14:34:15,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:15,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495208647] [2024-12-02 14:34:15,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495208647] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:15,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:15,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:34:15,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148460086] [2024-12-02 14:34:15,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:15,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:34:15,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:15,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:34:15,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:34:15,491 INFO L87 Difference]: Start difference. First operand 7220 states and 10846 transitions. Second operand has 4 states, 4 states have (on average 785.5) internal successors, (3142), 4 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:15,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:34:15,628 INFO L93 Difference]: Finished difference Result 13428 states and 20175 transitions. [2024-12-02 14:34:15,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:34:15,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 785.5) internal successors, (3142), 4 states have internal predecessors, (3142), 0 states have call successors, (0), 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 3535 [2024-12-02 14:34:15,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:34:15,643 INFO L225 Difference]: With dead ends: 13428 [2024-12-02 14:34:15,643 INFO L226 Difference]: Without dead ends: 7224 [2024-12-02 14:34:15,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:34:15,649 INFO L435 NwaCegarLoop]: 9629 mSDtfsCounter, 0 mSDsluCounter, 19248 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28877 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:34:15,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28877 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:34:15,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7224 states. [2024-12-02 14:34:15,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7224 to 7222. [2024-12-02 14:34:15,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7222 states, 7221 states have (on average 1.5022850020772747) internal successors, (10848), 7221 states have internal predecessors, (10848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:15,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7222 states to 7222 states and 10848 transitions. [2024-12-02 14:34:15,783 INFO L78 Accepts]: Start accepts. Automaton has 7222 states and 10848 transitions. Word has length 3535 [2024-12-02 14:34:15,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:34:15,787 INFO L471 AbstractCegarLoop]: Abstraction has 7222 states and 10848 transitions. [2024-12-02 14:34:15,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 785.5) internal successors, (3142), 4 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:15,788 INFO L276 IsEmpty]: Start isEmpty. Operand 7222 states and 10848 transitions. [2024-12-02 14:34:15,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3537 [2024-12-02 14:34:15,978 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:34:15,979 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:34:15,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 14:34:15,980 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:34:15,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:15,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1612650221, now seen corresponding path program 1 times [2024-12-02 14:34:15,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:15,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439492037] [2024-12-02 14:34:15,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:15,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:27,348 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-02 14:34:27,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:27,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439492037] [2024-12-02 14:34:27,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439492037] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:27,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:27,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:34:27,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110074557] [2024-12-02 14:34:27,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:27,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:34:27,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:27,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:34:27,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:34:27,357 INFO L87 Difference]: Start difference. First operand 7222 states and 10848 transitions. Second operand has 4 states, 4 states have (on average 786.25) internal successors, (3145), 4 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:27,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:34:27,493 INFO L93 Difference]: Finished difference Result 13436 states and 20185 transitions. [2024-12-02 14:34:27,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:34:27,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 786.25) internal successors, (3145), 4 states have internal predecessors, (3145), 0 states have call successors, (0), 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 3536 [2024-12-02 14:34:27,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:34:27,505 INFO L225 Difference]: With dead ends: 13436 [2024-12-02 14:34:27,505 INFO L226 Difference]: Without dead ends: 7226 [2024-12-02 14:34:27,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:34:27,510 INFO L435 NwaCegarLoop]: 9629 mSDtfsCounter, 0 mSDsluCounter, 19248 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28877 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:34:27,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28877 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:34:27,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7226 states. [2024-12-02 14:34:27,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7226 to 7224. [2024-12-02 14:34:27,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7224 states, 7223 states have (on average 1.502145922746781) internal successors, (10850), 7223 states have internal predecessors, (10850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:27,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7224 states to 7224 states and 10850 transitions. [2024-12-02 14:34:27,609 INFO L78 Accepts]: Start accepts. Automaton has 7224 states and 10850 transitions. Word has length 3536 [2024-12-02 14:34:27,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:34:27,612 INFO L471 AbstractCegarLoop]: Abstraction has 7224 states and 10850 transitions. [2024-12-02 14:34:27,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 786.25) internal successors, (3145), 4 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:27,613 INFO L276 IsEmpty]: Start isEmpty. Operand 7224 states and 10850 transitions. [2024-12-02 14:34:27,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3538 [2024-12-02 14:34:27,756 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:34:27,757 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:34:27,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 14:34:27,758 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:34:27,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:27,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1021803576, now seen corresponding path program 1 times [2024-12-02 14:34:27,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:27,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416967561] [2024-12-02 14:34:27,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:27,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:40,030 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:34:40,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:40,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416967561] [2024-12-02 14:34:40,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416967561] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:40,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:40,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:34:40,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653248570] [2024-12-02 14:34:40,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:40,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:34:40,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:40,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:34:40,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:34:40,038 INFO L87 Difference]: Start difference. First operand 7224 states and 10850 transitions. Second operand has 4 states, 4 states have (on average 884.25) internal successors, (3537), 4 states have internal predecessors, (3537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:41,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:34:41,468 INFO L93 Difference]: Finished difference Result 13368 states and 20108 transitions. [2024-12-02 14:34:41,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:34:41,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 884.25) internal successors, (3537), 4 states have internal predecessors, (3537), 0 states have call successors, (0), 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 3537 [2024-12-02 14:34:41,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:34:41,477 INFO L225 Difference]: With dead ends: 13368 [2024-12-02 14:34:41,478 INFO L226 Difference]: Without dead ends: 7170 [2024-12-02 14:34:41,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:34:41,485 INFO L435 NwaCegarLoop]: 8957 mSDtfsCounter, 8468 mSDsluCounter, 8954 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8468 SdHoareTripleChecker+Valid, 17911 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:34:41,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8468 Valid, 17911 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 14:34:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7170 states. [2024-12-02 14:34:41,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7170 to 7170. [2024-12-02 14:34:41,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7169 states have (on average 1.4981168921746408) internal successors, (10740), 7169 states have internal predecessors, (10740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:41,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 10740 transitions. [2024-12-02 14:34:41,603 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 10740 transitions. Word has length 3537 [2024-12-02 14:34:41,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:34:41,604 INFO L471 AbstractCegarLoop]: Abstraction has 7170 states and 10740 transitions. [2024-12-02 14:34:41,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 884.25) internal successors, (3537), 4 states have internal predecessors, (3537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:41,605 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 10740 transitions. [2024-12-02 14:34:41,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3539 [2024-12-02 14:34:41,748 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:34:41,749 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:34:41,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 14:34:41,749 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:34:41,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:41,752 INFO L85 PathProgramCache]: Analyzing trace with hash -608195070, now seen corresponding path program 1 times [2024-12-02 14:34:41,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:41,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173796746] [2024-12-02 14:34:41,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:41,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:51,339 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:34:51,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:51,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173796746] [2024-12-02 14:34:51,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173796746] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:51,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:51,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:34:51,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766445608] [2024-12-02 14:34:51,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:51,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:34:51,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:51,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:34:51,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:34:51,347 INFO L87 Difference]: Start difference. First operand 7170 states and 10740 transitions. Second operand has 4 states, 4 states have (on average 884.5) internal successors, (3538), 4 states have internal predecessors, (3538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:51,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:34:51,906 INFO L93 Difference]: Finished difference Result 13317 states and 19946 transitions. [2024-12-02 14:34:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:34:51,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 884.5) internal successors, (3538), 4 states have internal predecessors, (3538), 0 states have call successors, (0), 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 3538 [2024-12-02 14:34:51,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:34:51,914 INFO L225 Difference]: With dead ends: 13317 [2024-12-02 14:34:51,914 INFO L226 Difference]: Without dead ends: 7170 [2024-12-02 14:34:51,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:34:51,919 INFO L435 NwaCegarLoop]: 9251 mSDtfsCounter, 8462 mSDsluCounter, 9243 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8462 SdHoareTripleChecker+Valid, 18494 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:34:51,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8462 Valid, 18494 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:34:51,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7170 states. [2024-12-02 14:34:51,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7170 to 7170. [2024-12-02 14:34:52,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7169 states have (on average 1.4979774027060957) internal successors, (10739), 7169 states have internal predecessors, (10739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:52,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 10739 transitions. [2024-12-02 14:34:52,014 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 10739 transitions. Word has length 3538 [2024-12-02 14:34:52,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:34:52,015 INFO L471 AbstractCegarLoop]: Abstraction has 7170 states and 10739 transitions. [2024-12-02 14:34:52,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 884.5) internal successors, (3538), 4 states have internal predecessors, (3538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:34:52,016 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 10739 transitions. [2024-12-02 14:34:52,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3540 [2024-12-02 14:34:52,165 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:34:52,166 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:34:52,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 14:34:52,167 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:34:52,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:52,169 INFO L85 PathProgramCache]: Analyzing trace with hash 429291760, now seen corresponding path program 1 times [2024-12-02 14:34:52,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:52,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228581466] [2024-12-02 14:34:52,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:52,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:02,438 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:35:02,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:02,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228581466] [2024-12-02 14:35:02,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228581466] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:02,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:02,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:35:02,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080612499] [2024-12-02 14:35:02,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:02,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:35:02,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:02,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:35:02,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:35:02,448 INFO L87 Difference]: Start difference. First operand 7170 states and 10739 transitions. Second operand has 6 states, 6 states have (on average 589.8333333333334) internal successors, (3539), 6 states have internal predecessors, (3539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:03,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:03,364 INFO L93 Difference]: Finished difference Result 14322 states and 21449 transitions. [2024-12-02 14:35:03,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:35:03,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 589.8333333333334) internal successors, (3539), 6 states have internal predecessors, (3539), 0 states have call successors, (0), 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 3539 [2024-12-02 14:35:03,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:03,373 INFO L225 Difference]: With dead ends: 14322 [2024-12-02 14:35:03,373 INFO L226 Difference]: Without dead ends: 7170 [2024-12-02 14:35:03,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:35:03,377 INFO L435 NwaCegarLoop]: 9460 mSDtfsCounter, 11457 mSDsluCounter, 27880 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11457 SdHoareTripleChecker+Valid, 37340 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:03,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11457 Valid, 37340 Invalid, 745 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 14:35:03,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7170 states. [2024-12-02 14:35:03,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7170 to 7170. [2024-12-02 14:35:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7169 states have (on average 1.4978379132375506) internal successors, (10738), 7169 states have internal predecessors, (10738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:03,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 10738 transitions. [2024-12-02 14:35:03,470 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 10738 transitions. Word has length 3539 [2024-12-02 14:35:03,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:03,471 INFO L471 AbstractCegarLoop]: Abstraction has 7170 states and 10738 transitions. [2024-12-02 14:35:03,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 589.8333333333334) internal successors, (3539), 6 states have internal predecessors, (3539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 10738 transitions. [2024-12-02 14:35:03,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3541 [2024-12-02 14:35:03,563 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:03,564 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:35:03,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 14:35:03,565 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:03,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:03,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1010806432, now seen corresponding path program 1 times [2024-12-02 14:35:03,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:03,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347657085] [2024-12-02 14:35:03,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:03,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:07,973 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:35:07,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:07,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347657085] [2024-12-02 14:35:07,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347657085] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:07,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:07,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:35:07,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894835264] [2024-12-02 14:35:07,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:07,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:35:07,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:07,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:35:07,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:35:07,981 INFO L87 Difference]: Start difference. First operand 7170 states and 10738 transitions. Second operand has 4 states, 4 states have (on average 885.0) internal successors, (3540), 4 states have internal predecessors, (3540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:09,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:09,062 INFO L93 Difference]: Finished difference Result 14325 states and 21450 transitions. [2024-12-02 14:35:09,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:35:09,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 885.0) internal successors, (3540), 4 states have internal predecessors, (3540), 0 states have call successors, (0), 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 3540 [2024-12-02 14:35:09,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:09,069 INFO L225 Difference]: With dead ends: 14325 [2024-12-02 14:35:09,070 INFO L226 Difference]: Without dead ends: 7170 [2024-12-02 14:35:09,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:35:09,074 INFO L435 NwaCegarLoop]: 9447 mSDtfsCounter, 962 mSDsluCounter, 18427 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 27874 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:09,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 27874 Invalid, 714 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [41 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:35:09,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7170 states. [2024-12-02 14:35:09,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7170 to 7170. [2024-12-02 14:35:09,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7169 states have (on average 1.4976984237690054) internal successors, (10737), 7169 states have internal predecessors, (10737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:09,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 10737 transitions. [2024-12-02 14:35:09,142 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 10737 transitions. Word has length 3540 [2024-12-02 14:35:09,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:09,142 INFO L471 AbstractCegarLoop]: Abstraction has 7170 states and 10737 transitions. [2024-12-02 14:35:09,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 885.0) internal successors, (3540), 4 states have internal predecessors, (3540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:09,143 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 10737 transitions. [2024-12-02 14:35:09,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3541 [2024-12-02 14:35:09,201 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:09,201 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:35:09,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 14:35:09,202 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:09,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:09,203 INFO L85 PathProgramCache]: Analyzing trace with hash 126878319, now seen corresponding path program 1 times [2024-12-02 14:35:09,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:09,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816202520] [2024-12-02 14:35:09,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:09,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:21,264 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:35:21,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:21,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816202520] [2024-12-02 14:35:21,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816202520] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:21,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:21,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:35:21,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326011138] [2024-12-02 14:35:21,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:21,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:35:21,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:21,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:35:21,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:35:21,272 INFO L87 Difference]: Start difference. First operand 7170 states and 10737 transitions. Second operand has 6 states, 6 states have (on average 590.0) internal successors, (3540), 6 states have internal predecessors, (3540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:22,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:22,852 INFO L93 Difference]: Finished difference Result 13320 states and 19945 transitions. [2024-12-02 14:35:22,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:35:22,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 590.0) internal successors, (3540), 6 states have internal predecessors, (3540), 0 states have call successors, (0), 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 3540 [2024-12-02 14:35:22,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:22,859 INFO L225 Difference]: With dead ends: 13320 [2024-12-02 14:35:22,859 INFO L226 Difference]: Without dead ends: 7176 [2024-12-02 14:35:22,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:35:22,863 INFO L435 NwaCegarLoop]: 8722 mSDtfsCounter, 8991 mSDsluCounter, 8721 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8991 SdHoareTripleChecker+Valid, 17443 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:22,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8991 Valid, 17443 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1592 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 14:35:22,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7176 states. [2024-12-02 14:35:22,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7176 to 7170. [2024-12-02 14:35:22,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7169 states have (on average 1.4975589343004603) internal successors, (10736), 7169 states have internal predecessors, (10736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:22,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 10736 transitions. [2024-12-02 14:35:22,932 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 10736 transitions. Word has length 3540 [2024-12-02 14:35:22,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:22,932 INFO L471 AbstractCegarLoop]: Abstraction has 7170 states and 10736 transitions. [2024-12-02 14:35:22,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 590.0) internal successors, (3540), 6 states have internal predecessors, (3540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:22,933 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 10736 transitions. [2024-12-02 14:35:22,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3542 [2024-12-02 14:35:22,990 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:22,991 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:35:22,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 14:35:22,991 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:22,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:22,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1956734616, now seen corresponding path program 1 times [2024-12-02 14:35:22,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:22,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979772739] [2024-12-02 14:35:22,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:22,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:32,351 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:35:32,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:32,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979772739] [2024-12-02 14:35:32,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979772739] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:32,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:32,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:35:32,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334839314] [2024-12-02 14:35:32,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:32,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:35:32,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:32,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:35:32,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:35:32,358 INFO L87 Difference]: Start difference. First operand 7170 states and 10736 transitions. Second operand has 5 states, 5 states have (on average 708.2) internal successors, (3541), 5 states have internal predecessors, (3541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:32,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:32,557 INFO L93 Difference]: Finished difference Result 13315 states and 19936 transitions. [2024-12-02 14:35:32,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:35:32,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 708.2) internal successors, (3541), 5 states have internal predecessors, (3541), 0 states have call successors, (0), 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 3541 [2024-12-02 14:35:32,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:32,563 INFO L225 Difference]: With dead ends: 13315 [2024-12-02 14:35:32,563 INFO L226 Difference]: Without dead ends: 7171 [2024-12-02 14:35:32,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:35:32,567 INFO L435 NwaCegarLoop]: 9476 mSDtfsCounter, 8976 mSDsluCounter, 18947 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8976 SdHoareTripleChecker+Valid, 28423 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:32,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8976 Valid, 28423 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:35:32,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7171 states. [2024-12-02 14:35:32,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7171 to 7171. [2024-12-02 14:35:32,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7171 states, 7170 states have (on average 1.497489539748954) internal successors, (10737), 7170 states have internal predecessors, (10737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7171 states to 7171 states and 10737 transitions. [2024-12-02 14:35:32,632 INFO L78 Accepts]: Start accepts. Automaton has 7171 states and 10737 transitions. Word has length 3541 [2024-12-02 14:35:32,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:32,632 INFO L471 AbstractCegarLoop]: Abstraction has 7171 states and 10737 transitions. [2024-12-02 14:35:32,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 708.2) internal successors, (3541), 5 states have internal predecessors, (3541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:32,633 INFO L276 IsEmpty]: Start isEmpty. Operand 7171 states and 10737 transitions. [2024-12-02 14:35:32,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3542 [2024-12-02 14:35:32,716 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:32,718 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:35:32,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 14:35:32,718 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:32,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:32,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1439915304, now seen corresponding path program 1 times [2024-12-02 14:35:32,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:32,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467490261] [2024-12-02 14:35:32,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:32,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:43,170 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:35:43,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:43,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467490261] [2024-12-02 14:35:43,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467490261] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:43,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:43,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:35:43,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615161897] [2024-12-02 14:35:43,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:43,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:35:43,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:43,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:35:43,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:35:43,178 INFO L87 Difference]: Start difference. First operand 7171 states and 10737 transitions. Second operand has 5 states, 5 states have (on average 708.2) internal successors, (3541), 5 states have internal predecessors, (3541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:43,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:43,766 INFO L93 Difference]: Finished difference Result 13315 states and 19935 transitions. [2024-12-02 14:35:44,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:35:44,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 708.2) internal successors, (3541), 5 states have internal predecessors, (3541), 0 states have call successors, (0), 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 3541 [2024-12-02 14:35:44,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:44,047 INFO L225 Difference]: With dead ends: 13315 [2024-12-02 14:35:44,047 INFO L226 Difference]: Without dead ends: 7170 [2024-12-02 14:35:44,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:35:44,050 INFO L435 NwaCegarLoop]: 9211 mSDtfsCounter, 18453 mSDsluCounter, 9208 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18453 SdHoareTripleChecker+Valid, 18419 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:44,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18453 Valid, 18419 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:35:44,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7170 states. [2024-12-02 14:35:44,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7170 to 7170. [2024-12-02 14:35:44,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7169 states have (on average 1.4974194448319151) internal successors, (10735), 7169 states have internal predecessors, (10735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 10735 transitions. [2024-12-02 14:35:44,111 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 10735 transitions. Word has length 3541 [2024-12-02 14:35:44,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:44,112 INFO L471 AbstractCegarLoop]: Abstraction has 7170 states and 10735 transitions. [2024-12-02 14:35:44,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 708.2) internal successors, (3541), 5 states have internal predecessors, (3541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:44,112 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 10735 transitions. [2024-12-02 14:35:44,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3543 [2024-12-02 14:35:44,170 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:44,171 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:35:44,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 14:35:44,171 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:44,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:44,173 INFO L85 PathProgramCache]: Analyzing trace with hash 42110466, now seen corresponding path program 1 times [2024-12-02 14:35:44,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:44,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491144257] [2024-12-02 14:35:44,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:44,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:51,485 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:35:51,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:51,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491144257] [2024-12-02 14:35:51,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491144257] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:51,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:51,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:35:51,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046288729] [2024-12-02 14:35:51,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:51,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:35:51,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:51,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:35:51,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:35:51,494 INFO L87 Difference]: Start difference. First operand 7170 states and 10735 transitions. Second operand has 5 states, 5 states have (on average 708.4) internal successors, (3542), 5 states have internal predecessors, (3542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:52,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:52,489 INFO L93 Difference]: Finished difference Result 13314 states and 19932 transitions. [2024-12-02 14:35:52,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:35:52,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 708.4) internal successors, (3542), 5 states have internal predecessors, (3542), 0 states have call successors, (0), 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 3542 [2024-12-02 14:35:52,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:52,497 INFO L225 Difference]: With dead ends: 13314 [2024-12-02 14:35:52,497 INFO L226 Difference]: Without dead ends: 7170 [2024-12-02 14:35:52,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:35:52,502 INFO L435 NwaCegarLoop]: 8986 mSDtfsCounter, 18982 mSDsluCounter, 8981 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18982 SdHoareTripleChecker+Valid, 17967 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:52,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18982 Valid, 17967 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1053 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:35:52,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7170 states. [2024-12-02 14:35:52,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7170 to 7170. [2024-12-02 14:35:52,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7169 states have (on average 1.4971404658948249) internal successors, (10733), 7169 states have internal predecessors, (10733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:52,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 10733 transitions. [2024-12-02 14:35:52,583 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 10733 transitions. Word has length 3542 [2024-12-02 14:35:52,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:52,584 INFO L471 AbstractCegarLoop]: Abstraction has 7170 states and 10733 transitions. [2024-12-02 14:35:52,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 708.4) internal successors, (3542), 5 states have internal predecessors, (3542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:35:52,584 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 10733 transitions. [2024-12-02 14:35:52,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3544 [2024-12-02 14:35:52,822 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:52,823 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:35:52,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 14:35:52,823 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:52,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:52,824 INFO L85 PathProgramCache]: Analyzing trace with hash 296279232, now seen corresponding path program 1 times [2024-12-02 14:35:52,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:52,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019390419] [2024-12-02 14:35:52,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:52,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:36:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:36:01,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:01,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019390419] [2024-12-02 14:36:01,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019390419] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:36:01,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:36:01,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:36:01,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25916253] [2024-12-02 14:36:01,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:36:01,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:36:01,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:01,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:36:01,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:36:01,635 INFO L87 Difference]: Start difference. First operand 7170 states and 10733 transitions. Second operand has 5 states, 5 states have (on average 708.6) internal successors, (3543), 5 states have internal predecessors, (3543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:02,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:36:02,133 INFO L93 Difference]: Finished difference Result 13313 states and 19927 transitions. [2024-12-02 14:36:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:36:02,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 708.6) internal successors, (3543), 5 states have internal predecessors, (3543), 0 states have call successors, (0), 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 3543 [2024-12-02 14:36:02,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:36:02,141 INFO L225 Difference]: With dead ends: 13313 [2024-12-02 14:36:02,141 INFO L226 Difference]: Without dead ends: 7169 [2024-12-02 14:36:02,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:36:02,148 INFO L435 NwaCegarLoop]: 9209 mSDtfsCounter, 9335 mSDsluCounter, 9207 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9335 SdHoareTripleChecker+Valid, 18416 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:36:02,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9335 Valid, 18416 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:36:02,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7169 states. [2024-12-02 14:36:02,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7169 to 7169. [2024-12-02 14:36:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7169 states, 7168 states have (on average 1.4970703125) internal successors, (10731), 7168 states have internal predecessors, (10731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:02,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7169 states to 7169 states and 10731 transitions. [2024-12-02 14:36:02,215 INFO L78 Accepts]: Start accepts. Automaton has 7169 states and 10731 transitions. Word has length 3543 [2024-12-02 14:36:02,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:36:02,216 INFO L471 AbstractCegarLoop]: Abstraction has 7169 states and 10731 transitions. [2024-12-02 14:36:02,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 708.6) internal successors, (3543), 5 states have internal predecessors, (3543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:02,217 INFO L276 IsEmpty]: Start isEmpty. Operand 7169 states and 10731 transitions. [2024-12-02 14:36:02,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3545 [2024-12-02 14:36:02,274 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:36:02,275 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:36:02,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 14:36:02,275 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:36:02,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:36:02,276 INFO L85 PathProgramCache]: Analyzing trace with hash -710271064, now seen corresponding path program 1 times [2024-12-02 14:36:02,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:36:02,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014570428] [2024-12-02 14:36:02,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:36:02,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:36:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:36:09,880 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:36:09,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:09,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014570428] [2024-12-02 14:36:09,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014570428] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:36:09,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:36:09,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:36:09,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006220306] [2024-12-02 14:36:09,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:36:09,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:36:09,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:09,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:36:09,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:36:09,885 INFO L87 Difference]: Start difference. First operand 7169 states and 10731 transitions. Second operand has 5 states, 5 states have (on average 708.8) internal successors, (3544), 5 states have internal predecessors, (3544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:10,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:36:10,786 INFO L93 Difference]: Finished difference Result 13312 states and 19924 transitions. [2024-12-02 14:36:10,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:36:10,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 708.8) internal successors, (3544), 5 states have internal predecessors, (3544), 0 states have call successors, (0), 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 3544 [2024-12-02 14:36:10,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:36:10,793 INFO L225 Difference]: With dead ends: 13312 [2024-12-02 14:36:10,793 INFO L226 Difference]: Without dead ends: 7169 [2024-12-02 14:36:10,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:36:10,797 INFO L435 NwaCegarLoop]: 8985 mSDtfsCounter, 18646 mSDsluCounter, 8979 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18646 SdHoareTripleChecker+Valid, 17964 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:36:10,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18646 Valid, 17964 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:36:10,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7169 states. [2024-12-02 14:36:10,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7169 to 7169. [2024-12-02 14:36:10,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7169 states, 7168 states have (on average 1.4967912946428572) internal successors, (10729), 7168 states have internal predecessors, (10729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:10,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7169 states to 7169 states and 10729 transitions. [2024-12-02 14:36:10,859 INFO L78 Accepts]: Start accepts. Automaton has 7169 states and 10729 transitions. Word has length 3544 [2024-12-02 14:36:10,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:36:10,859 INFO L471 AbstractCegarLoop]: Abstraction has 7169 states and 10729 transitions. [2024-12-02 14:36:10,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 708.8) internal successors, (3544), 5 states have internal predecessors, (3544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:10,860 INFO L276 IsEmpty]: Start isEmpty. Operand 7169 states and 10729 transitions. [2024-12-02 14:36:10,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3546 [2024-12-02 14:36:10,915 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:36:10,916 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:36:10,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 14:36:10,916 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:36:10,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:36:10,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1283825688, now seen corresponding path program 1 times [2024-12-02 14:36:10,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:36:10,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996263561] [2024-12-02 14:36:10,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:36:10,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:36:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:36:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:36:20,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:20,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996263561] [2024-12-02 14:36:20,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996263561] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:36:20,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:36:20,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:36:20,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631227253] [2024-12-02 14:36:20,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:36:20,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:36:20,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:20,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:36:20,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:36:20,214 INFO L87 Difference]: Start difference. First operand 7169 states and 10729 transitions. Second operand has 5 states, 5 states have (on average 709.0) internal successors, (3545), 5 states have internal predecessors, (3545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:20,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:36:20,701 INFO L93 Difference]: Finished difference Result 13312 states and 19920 transitions. [2024-12-02 14:36:20,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:36:20,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 709.0) internal successors, (3545), 5 states have internal predecessors, (3545), 0 states have call successors, (0), 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 3545 [2024-12-02 14:36:20,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:36:20,707 INFO L225 Difference]: With dead ends: 13312 [2024-12-02 14:36:20,707 INFO L226 Difference]: Without dead ends: 7169 [2024-12-02 14:36:20,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:36:20,712 INFO L435 NwaCegarLoop]: 9207 mSDtfsCounter, 9298 mSDsluCounter, 9205 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9298 SdHoareTripleChecker+Valid, 18412 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:36:20,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9298 Valid, 18412 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:36:20,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7169 states. [2024-12-02 14:36:20,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7169 to 7169. [2024-12-02 14:36:20,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7169 states, 7168 states have (on average 1.4966517857142858) internal successors, (10728), 7168 states have internal predecessors, (10728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:20,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7169 states to 7169 states and 10728 transitions. [2024-12-02 14:36:20,779 INFO L78 Accepts]: Start accepts. Automaton has 7169 states and 10728 transitions. Word has length 3545 [2024-12-02 14:36:20,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:36:20,780 INFO L471 AbstractCegarLoop]: Abstraction has 7169 states and 10728 transitions. [2024-12-02 14:36:20,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 709.0) internal successors, (3545), 5 states have internal predecessors, (3545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:20,781 INFO L276 IsEmpty]: Start isEmpty. Operand 7169 states and 10728 transitions. [2024-12-02 14:36:20,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3547 [2024-12-02 14:36:20,838 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:36:20,838 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:36:20,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 14:36:20,839 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:36:20,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:36:20,840 INFO L85 PathProgramCache]: Analyzing trace with hash -791632172, now seen corresponding path program 1 times [2024-12-02 14:36:20,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:36:20,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802549544] [2024-12-02 14:36:20,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:36:20,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:36:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:36:25,337 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:36:25,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:25,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802549544] [2024-12-02 14:36:25,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802549544] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:36:25,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:36:25,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:36:25,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7298073] [2024-12-02 14:36:25,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:36:25,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:36:25,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:25,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:36:25,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:36:25,342 INFO L87 Difference]: Start difference. First operand 7169 states and 10728 transitions. Second operand has 4 states, 4 states have (on average 886.5) internal successors, (3546), 4 states have internal predecessors, (3546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:26,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:36:26,144 INFO L93 Difference]: Finished difference Result 13895 states and 20789 transitions. [2024-12-02 14:36:26,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:36:26,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 886.5) internal successors, (3546), 4 states have internal predecessors, (3546), 0 states have call successors, (0), 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 3546 [2024-12-02 14:36:26,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:36:26,150 INFO L225 Difference]: With dead ends: 13895 [2024-12-02 14:36:26,151 INFO L226 Difference]: Without dead ends: 7169 [2024-12-02 14:36:26,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:36:26,155 INFO L435 NwaCegarLoop]: 9457 mSDtfsCounter, 550 mSDsluCounter, 18434 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 27891 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:36:26,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 27891 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:36:26,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7169 states. [2024-12-02 14:36:26,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7169 to 7169. [2024-12-02 14:36:26,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7169 states, 7168 states have (on average 1.4965122767857142) internal successors, (10727), 7168 states have internal predecessors, (10727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:26,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7169 states to 7169 states and 10727 transitions. [2024-12-02 14:36:26,219 INFO L78 Accepts]: Start accepts. Automaton has 7169 states and 10727 transitions. Word has length 3546 [2024-12-02 14:36:26,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:36:26,220 INFO L471 AbstractCegarLoop]: Abstraction has 7169 states and 10727 transitions. [2024-12-02 14:36:26,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 886.5) internal successors, (3546), 4 states have internal predecessors, (3546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:26,220 INFO L276 IsEmpty]: Start isEmpty. Operand 7169 states and 10727 transitions. [2024-12-02 14:36:26,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3547 [2024-12-02 14:36:26,276 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:36:26,277 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:36:26,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 14:36:26,278 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:36:26,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:36:26,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1697674531, now seen corresponding path program 1 times [2024-12-02 14:36:26,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:36:26,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223088115] [2024-12-02 14:36:26,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:36:26,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:36:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:36:33,029 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:36:33,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:33,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223088115] [2024-12-02 14:36:33,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223088115] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:36:33,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:36:33,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:36:33,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882851946] [2024-12-02 14:36:33,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:36:33,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:36:33,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:33,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:36:33,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:36:33,033 INFO L87 Difference]: Start difference. First operand 7169 states and 10727 transitions. Second operand has 5 states, 5 states have (on average 709.2) internal successors, (3546), 5 states have internal predecessors, (3546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:33,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:36:33,925 INFO L93 Difference]: Finished difference Result 13312 states and 19916 transitions. [2024-12-02 14:36:33,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:36:33,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 709.2) internal successors, (3546), 5 states have internal predecessors, (3546), 0 states have call successors, (0), 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 3546 [2024-12-02 14:36:33,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:36:33,932 INFO L225 Difference]: With dead ends: 13312 [2024-12-02 14:36:33,932 INFO L226 Difference]: Without dead ends: 7169 [2024-12-02 14:36:33,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:36:33,936 INFO L435 NwaCegarLoop]: 8984 mSDtfsCounter, 9288 mSDsluCounter, 8980 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9288 SdHoareTripleChecker+Valid, 17964 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:36:33,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9288 Valid, 17964 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:36:33,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7169 states. [2024-12-02 14:36:33,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7169 to 7169. [2024-12-02 14:36:33,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7169 states, 7168 states have (on average 1.4963727678571428) internal successors, (10726), 7168 states have internal predecessors, (10726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:34,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7169 states to 7169 states and 10726 transitions. [2024-12-02 14:36:34,002 INFO L78 Accepts]: Start accepts. Automaton has 7169 states and 10726 transitions. Word has length 3546 [2024-12-02 14:36:34,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:36:34,002 INFO L471 AbstractCegarLoop]: Abstraction has 7169 states and 10726 transitions. [2024-12-02 14:36:34,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 709.2) internal successors, (3546), 5 states have internal predecessors, (3546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:34,003 INFO L276 IsEmpty]: Start isEmpty. Operand 7169 states and 10726 transitions. [2024-12-02 14:36:34,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3548 [2024-12-02 14:36:34,061 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:36:34,062 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:36:34,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 14:36:34,062 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:36:34,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:36:34,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1059582992, now seen corresponding path program 1 times [2024-12-02 14:36:34,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:36:34,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267242824] [2024-12-02 14:36:34,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:36:34,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:36:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:36:43,549 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:36:43,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:43,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267242824] [2024-12-02 14:36:43,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267242824] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:36:43,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:36:43,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:36:43,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538121911] [2024-12-02 14:36:43,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:36:43,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:36:43,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:43,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:36:43,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:36:43,553 INFO L87 Difference]: Start difference. First operand 7169 states and 10726 transitions. Second operand has 5 states, 5 states have (on average 709.4) internal successors, (3547), 5 states have internal predecessors, (3547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:43,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:36:43,743 INFO L93 Difference]: Finished difference Result 13313 states and 19916 transitions. [2024-12-02 14:36:43,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:36:43,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 709.4) internal successors, (3547), 5 states have internal predecessors, (3547), 0 states have call successors, (0), 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 3547 [2024-12-02 14:36:43,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:36:43,750 INFO L225 Difference]: With dead ends: 13313 [2024-12-02 14:36:43,750 INFO L226 Difference]: Without dead ends: 7170 [2024-12-02 14:36:43,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:36:43,754 INFO L435 NwaCegarLoop]: 9467 mSDtfsCounter, 8747 mSDsluCounter, 18929 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8747 SdHoareTripleChecker+Valid, 28396 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:36:43,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8747 Valid, 28396 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:36:43,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7170 states. [2024-12-02 14:36:43,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7170 to 7170. [2024-12-02 14:36:43,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7169 states have (on average 1.4963035290835542) internal successors, (10727), 7169 states have internal predecessors, (10727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:43,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 10727 transitions. [2024-12-02 14:36:43,820 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 10727 transitions. Word has length 3547 [2024-12-02 14:36:43,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:36:43,820 INFO L471 AbstractCegarLoop]: Abstraction has 7170 states and 10727 transitions. [2024-12-02 14:36:43,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 709.4) internal successors, (3547), 5 states have internal predecessors, (3547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:43,821 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 10727 transitions. [2024-12-02 14:36:43,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3548 [2024-12-02 14:36:43,878 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:36:43,879 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:36:43,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 14:36:43,880 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:36:43,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:36:43,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1258555344, now seen corresponding path program 1 times [2024-12-02 14:36:43,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:36:43,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627800613] [2024-12-02 14:36:43,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:36:43,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:36:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:36:53,262 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:36:53,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:53,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627800613] [2024-12-02 14:36:53,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627800613] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:36:53,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:36:53,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:36:53,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831112837] [2024-12-02 14:36:53,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:36:53,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:36:53,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:53,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:36:53,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:36:53,266 INFO L87 Difference]: Start difference. First operand 7170 states and 10727 transitions. Second operand has 5 states, 5 states have (on average 709.4) internal successors, (3547), 5 states have internal predecessors, (3547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:53,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:36:53,811 INFO L93 Difference]: Finished difference Result 13314 states and 19916 transitions. [2024-12-02 14:36:53,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:36:53,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 709.4) internal successors, (3547), 5 states have internal predecessors, (3547), 0 states have call successors, (0), 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 3547 [2024-12-02 14:36:53,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:36:53,817 INFO L225 Difference]: With dead ends: 13314 [2024-12-02 14:36:53,817 INFO L226 Difference]: Without dead ends: 7170 [2024-12-02 14:36:53,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:36:53,820 INFO L435 NwaCegarLoop]: 9205 mSDtfsCounter, 9209 mSDsluCounter, 9203 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9209 SdHoareTripleChecker+Valid, 18408 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:36:53,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9209 Valid, 18408 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:36:53,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7170 states. [2024-12-02 14:36:53,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7170 to 7170. [2024-12-02 14:36:53,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7169 states have (on average 1.496164039615009) internal successors, (10726), 7169 states have internal predecessors, (10726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:53,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 10726 transitions. [2024-12-02 14:36:53,883 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 10726 transitions. Word has length 3547 [2024-12-02 14:36:53,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:36:53,883 INFO L471 AbstractCegarLoop]: Abstraction has 7170 states and 10726 transitions. [2024-12-02 14:36:53,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 709.4) internal successors, (3547), 5 states have internal predecessors, (3547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:53,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 10726 transitions. [2024-12-02 14:36:53,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3549 [2024-12-02 14:36:53,940 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:36:53,941 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:36:53,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 14:36:53,941 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:36:53,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:36:53,942 INFO L85 PathProgramCache]: Analyzing trace with hash -734080775, now seen corresponding path program 1 times [2024-12-02 14:36:53,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:36:53,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697475563] [2024-12-02 14:36:53,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:36:53,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:36:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:36:57,949 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:36:57,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:57,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697475563] [2024-12-02 14:36:57,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697475563] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:36:57,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:36:57,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:36:57,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792318877] [2024-12-02 14:36:57,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:36:57,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:36:57,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:57,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:36:57,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:36:57,960 INFO L87 Difference]: Start difference. First operand 7170 states and 10726 transitions. Second operand has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:58,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:36:58,644 INFO L93 Difference]: Finished difference Result 13731 states and 20536 transitions. [2024-12-02 14:36:58,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:36:58,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 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 3548 [2024-12-02 14:36:58,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:36:58,651 INFO L225 Difference]: With dead ends: 13731 [2024-12-02 14:36:58,651 INFO L226 Difference]: Without dead ends: 7170 [2024-12-02 14:36:58,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:36:58,656 INFO L435 NwaCegarLoop]: 9462 mSDtfsCounter, 390 mSDsluCounter, 18438 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 27900 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:36:58,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 27900 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 14:36:58,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7170 states. [2024-12-02 14:36:58,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7170 to 7170. [2024-12-02 14:36:58,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7169 states have (on average 1.496024550146464) internal successors, (10725), 7169 states have internal predecessors, (10725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:58,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 10725 transitions. [2024-12-02 14:36:58,721 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 10725 transitions. Word has length 3548 [2024-12-02 14:36:58,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:36:58,721 INFO L471 AbstractCegarLoop]: Abstraction has 7170 states and 10725 transitions. [2024-12-02 14:36:58,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:36:58,722 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 10725 transitions. [2024-12-02 14:36:58,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3549 [2024-12-02 14:36:58,780 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:36:58,781 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:36:58,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 14:36:58,781 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:36:58,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:36:58,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1307994936, now seen corresponding path program 1 times [2024-12-02 14:36:58,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:36:58,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326844988] [2024-12-02 14:36:58,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:36:58,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:37:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:37:05,075 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:37:05,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:37:05,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326844988] [2024-12-02 14:37:05,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326844988] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:37:05,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:37:05,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:37:05,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045380143] [2024-12-02 14:37:05,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:37:05,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:37:05,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:37:05,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:37:05,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:37:05,080 INFO L87 Difference]: Start difference. First operand 7170 states and 10725 transitions. Second operand has 5 states, 5 states have (on average 709.6) internal successors, (3548), 5 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:37:06,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:37:06,039 INFO L93 Difference]: Finished difference Result 13314 states and 19912 transitions. [2024-12-02 14:37:06,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:37:06,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 709.6) internal successors, (3548), 5 states have internal predecessors, (3548), 0 states have call successors, (0), 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 3548 [2024-12-02 14:37:06,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:37:06,046 INFO L225 Difference]: With dead ends: 13314 [2024-12-02 14:37:06,046 INFO L226 Difference]: Without dead ends: 7170 [2024-12-02 14:37:06,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:37:06,050 INFO L435 NwaCegarLoop]: 8983 mSDtfsCounter, 18400 mSDsluCounter, 8977 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18400 SdHoareTripleChecker+Valid, 17960 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:37:06,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18400 Valid, 17960 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:37:06,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7170 states. [2024-12-02 14:37:06,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7170 to 7170. [2024-12-02 14:37:06,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7169 states have (on average 1.4958850606779188) internal successors, (10724), 7169 states have internal predecessors, (10724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:37:06,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 10724 transitions. [2024-12-02 14:37:06,141 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 10724 transitions. Word has length 3548 [2024-12-02 14:37:06,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:37:06,141 INFO L471 AbstractCegarLoop]: Abstraction has 7170 states and 10724 transitions. [2024-12-02 14:37:06,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 709.6) internal successors, (3548), 5 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:37:06,142 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 10724 transitions. [2024-12-02 14:37:06,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3550 [2024-12-02 14:37:06,199 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:37:06,200 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:37:06,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 14:37:06,200 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:37:06,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:37:06,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1599122072, now seen corresponding path program 1 times [2024-12-02 14:37:06,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:37:06,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367799786] [2024-12-02 14:37:06,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:37:06,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:37:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:37:15,658 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:37:15,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:37:15,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367799786] [2024-12-02 14:37:15,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367799786] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:37:15,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:37:15,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:37:15,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987979174] [2024-12-02 14:37:15,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:37:15,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:37:15,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:37:15,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:37:15,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:37:15,663 INFO L87 Difference]: Start difference. First operand 7170 states and 10724 transitions. Second operand has 5 states, 5 states have (on average 709.8) internal successors, (3549), 5 states have internal predecessors, (3549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:37:15,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:37:15,868 INFO L93 Difference]: Finished difference Result 13315 states and 19912 transitions. [2024-12-02 14:37:15,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:37:15,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 709.8) internal successors, (3549), 5 states have internal predecessors, (3549), 0 states have call successors, (0), 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 3549 [2024-12-02 14:37:15,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:37:15,875 INFO L225 Difference]: With dead ends: 13315 [2024-12-02 14:37:15,875 INFO L226 Difference]: Without dead ends: 7171 [2024-12-02 14:37:15,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:37:15,879 INFO L435 NwaCegarLoop]: 9464 mSDtfsCounter, 8658 mSDsluCounter, 18923 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8658 SdHoareTripleChecker+Valid, 28387 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:37:15,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8658 Valid, 28387 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:37:15,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7171 states. [2024-12-02 14:37:15,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7171 to 7171. [2024-12-02 14:37:15,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7171 states, 7170 states have (on average 1.49581589958159) internal successors, (10725), 7170 states have internal predecessors, (10725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:37:15,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7171 states to 7171 states and 10725 transitions. [2024-12-02 14:37:15,946 INFO L78 Accepts]: Start accepts. Automaton has 7171 states and 10725 transitions. Word has length 3549 [2024-12-02 14:37:15,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:37:15,947 INFO L471 AbstractCegarLoop]: Abstraction has 7171 states and 10725 transitions. [2024-12-02 14:37:15,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 709.8) internal successors, (3549), 5 states have internal predecessors, (3549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:37:15,948 INFO L276 IsEmpty]: Start isEmpty. Operand 7171 states and 10725 transitions. [2024-12-02 14:37:16,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3550 [2024-12-02 14:37:16,005 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:37:16,007 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:37:16,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 14:37:16,007 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:37:16,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:37:16,009 INFO L85 PathProgramCache]: Analyzing trace with hash 881379624, now seen corresponding path program 1 times [2024-12-02 14:37:16,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:37:16,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789418128] [2024-12-02 14:37:16,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:37:16,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:37:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat