./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem12_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem12_label00.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 48b75eefd299c5e358d6f7c99602002262fce20f93b0f1303552b05fdc1d7cc8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:26:52,169 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:26:52,285 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:26:52,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:26:52,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:26:52,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:26:52,337 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:26:52,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:26:52,338 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:26:52,338 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:26:52,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:26:52,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:26:52,340 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:26:52,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:26:52,340 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:26:52,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:26:52,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:26:52,341 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:26:52,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:26:52,341 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:26:52,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:26:52,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:26:52,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:26:52,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:26:52,342 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:26:52,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:26:52,342 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:26:52,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:26:52,342 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:26:52,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:26:52,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:26:52,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:26:52,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:26:52,344 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:26:52,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:26:52,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:26:52,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:26:52,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:26:52,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:26:52,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:26:52,346 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:26:52,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:26:52,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:26:52,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:26:52,347 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:26:52,347 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:26:52,347 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:26:52,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:26:52,347 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_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48b75eefd299c5e358d6f7c99602002262fce20f93b0f1303552b05fdc1d7cc8 [2024-11-28 04:26:52,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:26:52,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:26:52,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:26:52,774 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:26:52,775 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:26:52,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem12_label00.c [2024-11-28 04:26:56,010 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/data/92c685c9d/2d316dcad20f4cfe8d443382cf6f6b01/FLAGbaa247dcf [2024-11-28 04:26:56,592 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:26:56,593 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/sv-benchmarks/c/eca-rers2012/Problem12_label00.c [2024-11-28 04:26:56,638 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/data/92c685c9d/2d316dcad20f4cfe8d443382cf6f6b01/FLAGbaa247dcf [2024-11-28 04:26:56,661 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/data/92c685c9d/2d316dcad20f4cfe8d443382cf6f6b01 [2024-11-28 04:26:56,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:26:56,665 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:26:56,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:26:56,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:26:56,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:26:56,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:26:56" (1/1) ... [2024-11-28 04:26:56,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@744b2308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:56, skipping insertion in model container [2024-11-28 04:26:56,676 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:26:56" (1/1) ... [2024-11-28 04:26:56,805 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:26:57,093 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_058fff53-c942-46ed-9eca-a1b9b1013929/sv-benchmarks/c/eca-rers2012/Problem12_label00.c[2236,2249] [2024-11-28 04:26:58,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:26:58,303 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:26:58,329 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_058fff53-c942-46ed-9eca-a1b9b1013929/sv-benchmarks/c/eca-rers2012/Problem12_label00.c[2236,2249] [2024-11-28 04:26:59,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:26:59,074 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:26:59,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59 WrapperNode [2024-11-28 04:26:59,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:26:59,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:26:59,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:26:59,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:26:59,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59" (1/1) ... [2024-11-28 04:26:59,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59" (1/1) ... [2024-11-28 04:26:59,635 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760 [2024-11-28 04:26:59,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:26:59,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:26:59,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:26:59,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:26:59,651 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59" (1/1) ... [2024-11-28 04:26:59,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59" (1/1) ... [2024-11-28 04:26:59,726 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59" (1/1) ... [2024-11-28 04:27:00,100 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:27:00,100 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59" (1/1) ... [2024-11-28 04:27:00,100 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59" (1/1) ... [2024-11-28 04:27:00,265 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59" (1/1) ... [2024-11-28 04:27:00,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59" (1/1) ... [2024-11-28 04:27:00,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59" (1/1) ... [2024-11-28 04:27:00,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59" (1/1) ... [2024-11-28 04:27:00,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59" (1/1) ... [2024-11-28 04:27:00,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:27:00,473 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:27:00,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:27:00,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:27:00,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59" (1/1) ... [2024-11-28 04:27:00,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:27:00,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:27:00,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:27:00,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:27:00,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:27:00,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:27:00,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:27:00,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:27:00,646 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:27:00,648 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:27:08,052 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-28 04:27:08,053 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:27:08,087 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:27:08,087 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:27:08,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:27:08 BoogieIcfgContainer [2024-11-28 04:27:08,088 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:27:08,091 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:27:08,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:27:08,097 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:27:08,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:26:56" (1/3) ... [2024-11-28 04:27:08,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298258f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:27:08, skipping insertion in model container [2024-11-28 04:27:08,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:59" (2/3) ... [2024-11-28 04:27:08,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298258f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:27:08, skipping insertion in model container [2024-11-28 04:27:08,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:27:08" (3/3) ... [2024-11-28 04:27:08,101 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem12_label00.c [2024-11-28 04:27:08,122 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:27:08,127 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem12_label00.c that has 1 procedures, 818 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:27:08,233 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:27:08,250 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;@16b5add7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:27:08,252 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:27:08,263 INFO L276 IsEmpty]: Start isEmpty. Operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:08,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 04:27:08,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:27:08,271 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:27:08,271 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:27:08,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:08,279 INFO L85 PathProgramCache]: Analyzing trace with hash -884752143, now seen corresponding path program 1 times [2024-11-28 04:27:08,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:08,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025421806] [2024-11-28 04:27:08,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:27:08,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:27:08,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:27:08,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:08,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025421806] [2024-11-28 04:27:08,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025421806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:08,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:08,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:27:08,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122500996] [2024-11-28 04:27:08,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:08,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:27:08,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:08,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:27:08,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:08,723 INFO L87 Difference]: Start difference. First operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:14,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:27:14,380 INFO L93 Difference]: Finished difference Result 2388 states and 4629 transitions. [2024-11-28 04:27:14,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:27:14,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2024-11-28 04:27:14,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:27:14,406 INFO L225 Difference]: With dead ends: 2388 [2024-11-28 04:27:14,407 INFO L226 Difference]: Without dead ends: 1506 [2024-11-28 04:27:14,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:14,418 INFO L435 NwaCegarLoop]: 471 mSDtfsCounter, 819 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:27:14,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 481 Invalid, 2985 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-28 04:27:14,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-11-28 04:27:14,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1506. [2024-11-28 04:27:14,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 1.6385382059800664) internal successors, (2466), 1505 states have internal predecessors, (2466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:14,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2466 transitions. [2024-11-28 04:27:14,601 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2466 transitions. Word has length 15 [2024-11-28 04:27:14,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:27:14,602 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2466 transitions. [2024-11-28 04:27:14,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:14,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2466 transitions. [2024-11-28 04:27:14,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 04:27:14,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:27:14,608 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:27:14,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:27:14,610 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:27:14,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:14,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1356240323, now seen corresponding path program 1 times [2024-11-28 04:27:14,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:14,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889721956] [2024-11-28 04:27:14,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:27:14,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:27:15,053 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:27:15,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:15,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889721956] [2024-11-28 04:27:15,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889721956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:15,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:15,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:27:15,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261909451] [2024-11-28 04:27:15,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:15,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:27:15,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:15,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:27:15,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:15,059 INFO L87 Difference]: Start difference. First operand 1506 states and 2466 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:20,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:27:20,521 INFO L93 Difference]: Finished difference Result 4512 states and 7393 transitions. [2024-11-28 04:27:20,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:27:20,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-28 04:27:20,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:27:20,536 INFO L225 Difference]: With dead ends: 4512 [2024-11-28 04:27:20,537 INFO L226 Difference]: Without dead ends: 3008 [2024-11-28 04:27:20,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:20,541 INFO L435 NwaCegarLoop]: 1149 mSDtfsCounter, 753 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:27:20,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1157 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-28 04:27:20,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2024-11-28 04:27:20,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 3008. [2024-11-28 04:27:20,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 3007 states have (on average 1.537080146325241) internal successors, (4622), 3007 states have internal predecessors, (4622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:20,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 4622 transitions. [2024-11-28 04:27:20,651 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 4622 transitions. Word has length 86 [2024-11-28 04:27:20,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:27:20,653 INFO L471 AbstractCegarLoop]: Abstraction has 3008 states and 4622 transitions. [2024-11-28 04:27:20,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:20,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 4622 transitions. [2024-11-28 04:27:20,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 04:27:20,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:27:20,658 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:27:20,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:27:20,659 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:27:20,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:20,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1990984141, now seen corresponding path program 1 times [2024-11-28 04:27:20,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:20,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920857676] [2024-11-28 04:27:20,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:27:20,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:27:20,978 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:27:20,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:20,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920857676] [2024-11-28 04:27:20,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920857676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:20,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:20,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:27:20,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904331586] [2024-11-28 04:27:20,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:20,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:27:20,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:20,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:27:20,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:20,980 INFO L87 Difference]: Start difference. First operand 3008 states and 4622 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:25,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:27:25,405 INFO L93 Difference]: Finished difference Result 9018 states and 13861 transitions. [2024-11-28 04:27:25,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:27:25,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-28 04:27:25,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:27:25,438 INFO L225 Difference]: With dead ends: 9018 [2024-11-28 04:27:25,438 INFO L226 Difference]: Without dead ends: 6012 [2024-11-28 04:27:25,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:25,450 INFO L435 NwaCegarLoop]: 441 mSDtfsCounter, 775 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:27:25,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 447 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:27:25,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2024-11-28 04:27:25,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 6012. [2024-11-28 04:27:25,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6012 states, 6011 states have (on average 1.3726501414074197) internal successors, (8251), 6011 states have internal predecessors, (8251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:25,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6012 states to 6012 states and 8251 transitions. [2024-11-28 04:27:25,622 INFO L78 Accepts]: Start accepts. Automaton has 6012 states and 8251 transitions. Word has length 89 [2024-11-28 04:27:25,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:27:25,623 INFO L471 AbstractCegarLoop]: Abstraction has 6012 states and 8251 transitions. [2024-11-28 04:27:25,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:25,624 INFO L276 IsEmpty]: Start isEmpty. Operand 6012 states and 8251 transitions. [2024-11-28 04:27:25,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 04:27:25,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:27:25,628 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:27:25,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:27:25,629 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:27:25,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:25,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1407375044, now seen corresponding path program 1 times [2024-11-28 04:27:25,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:25,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943946349] [2024-11-28 04:27:25,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:27:25,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:27:26,487 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:27:26,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:26,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943946349] [2024-11-28 04:27:26,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943946349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:26,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:26,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:27:26,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329791056] [2024-11-28 04:27:26,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:26,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:27:26,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:26,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:27:26,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:27:26,490 INFO L87 Difference]: Start difference. First operand 6012 states and 8251 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:34,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:27:34,299 INFO L93 Difference]: Finished difference Result 16528 states and 22713 transitions. [2024-11-28 04:27:34,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:27:34,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-28 04:27:34,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:27:34,341 INFO L225 Difference]: With dead ends: 16528 [2024-11-28 04:27:34,342 INFO L226 Difference]: Without dead ends: 10518 [2024-11-28 04:27:34,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:27:34,353 INFO L435 NwaCegarLoop]: 658 mSDtfsCounter, 4278 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5301 mSolverCounterSat, 971 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4278 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 6272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 971 IncrementalHoareTripleChecker+Valid, 5301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:27:34,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4278 Valid, 684 Invalid, 6272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [971 Valid, 5301 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-28 04:27:34,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10518 states. [2024-11-28 04:27:34,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10518 to 9767. [2024-11-28 04:27:34,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9767 states, 9766 states have (on average 1.2520991193938154) internal successors, (12228), 9766 states have internal predecessors, (12228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:34,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9767 states to 9767 states and 12228 transitions. [2024-11-28 04:27:34,682 INFO L78 Accepts]: Start accepts. Automaton has 9767 states and 12228 transitions. Word has length 96 [2024-11-28 04:27:34,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:27:34,683 INFO L471 AbstractCegarLoop]: Abstraction has 9767 states and 12228 transitions. [2024-11-28 04:27:34,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:34,684 INFO L276 IsEmpty]: Start isEmpty. Operand 9767 states and 12228 transitions. [2024-11-28 04:27:34,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-28 04:27:34,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:27:34,691 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:27:34,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:27:34,691 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:27:34,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:34,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2043288918, now seen corresponding path program 1 times [2024-11-28 04:27:34,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:34,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372806741] [2024-11-28 04:27:34,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:27:34,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:27:35,202 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:27:35,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:35,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372806741] [2024-11-28 04:27:35,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372806741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:35,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:35,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:27:35,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866477395] [2024-11-28 04:27:35,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:35,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:27:35,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:35,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:27:35,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:27:35,207 INFO L87 Difference]: Start difference. First operand 9767 states and 12228 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:40,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:27:40,000 INFO L93 Difference]: Finished difference Result 27081 states and 34206 transitions. [2024-11-28 04:27:40,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:27:40,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2024-11-28 04:27:40,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:27:40,048 INFO L225 Difference]: With dead ends: 27081 [2024-11-28 04:27:40,048 INFO L226 Difference]: Without dead ends: 17279 [2024-11-28 04:27:40,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:27:40,062 INFO L435 NwaCegarLoop]: 695 mSDtfsCounter, 690 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 3806 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 4469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 3806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:27:40,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 714 Invalid, 4469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 3806 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 04:27:40,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17279 states. [2024-11-28 04:27:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17279 to 15775. [2024-11-28 04:27:40,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15775 states, 15774 states have (on average 1.1640674527703816) internal successors, (18362), 15774 states have internal predecessors, (18362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15775 states to 15775 states and 18362 transitions. [2024-11-28 04:27:40,442 INFO L78 Accepts]: Start accepts. Automaton has 15775 states and 18362 transitions. Word has length 167 [2024-11-28 04:27:40,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:27:40,442 INFO L471 AbstractCegarLoop]: Abstraction has 15775 states and 18362 transitions. [2024-11-28 04:27:40,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:40,443 INFO L276 IsEmpty]: Start isEmpty. Operand 15775 states and 18362 transitions. [2024-11-28 04:27:40,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-28 04:27:40,449 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:27:40,449 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:27:40,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:27:40,451 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:27:40,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:40,451 INFO L85 PathProgramCache]: Analyzing trace with hash -358179269, now seen corresponding path program 1 times [2024-11-28 04:27:40,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:40,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013990506] [2024-11-28 04:27:40,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:27:40,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:27:40,778 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 04:27:40,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:40,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013990506] [2024-11-28 04:27:40,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013990506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:40,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:40,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:27:40,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206381170] [2024-11-28 04:27:40,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:40,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:27:40,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:40,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:27:40,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:40,783 INFO L87 Difference]: Start difference. First operand 15775 states and 18362 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:44,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:27:44,860 INFO L93 Difference]: Finished difference Result 39811 states and 47231 transitions. [2024-11-28 04:27:44,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:27:44,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 0 states have call successors, (0), 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 237 [2024-11-28 04:27:44,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:27:44,926 INFO L225 Difference]: With dead ends: 39811 [2024-11-28 04:27:44,927 INFO L226 Difference]: Without dead ends: 24038 [2024-11-28 04:27:44,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:44,947 INFO L435 NwaCegarLoop]: 303 mSDtfsCounter, 848 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 2775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:27:44,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 310 Invalid, 2775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 04:27:44,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24038 states. [2024-11-28 04:27:45,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24038 to 23285. [2024-11-28 04:27:45,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23285 states, 23284 states have (on average 1.1568459027658478) internal successors, (26936), 23284 states have internal predecessors, (26936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:45,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23285 states to 23285 states and 26936 transitions. [2024-11-28 04:27:45,516 INFO L78 Accepts]: Start accepts. Automaton has 23285 states and 26936 transitions. Word has length 237 [2024-11-28 04:27:45,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:27:45,517 INFO L471 AbstractCegarLoop]: Abstraction has 23285 states and 26936 transitions. [2024-11-28 04:27:45,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:45,519 INFO L276 IsEmpty]: Start isEmpty. Operand 23285 states and 26936 transitions. [2024-11-28 04:27:45,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-28 04:27:45,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:27:45,523 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:27:45,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:27:45,524 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:27:45,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:45,525 INFO L85 PathProgramCache]: Analyzing trace with hash -999996468, now seen corresponding path program 1 times [2024-11-28 04:27:45,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:45,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342022765] [2024-11-28 04:27:45,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:27:45,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:27:45,838 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:27:45,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:45,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342022765] [2024-11-28 04:27:45,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342022765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:45,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:45,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:27:45,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306581886] [2024-11-28 04:27:45,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:45,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:27:45,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:45,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:27:45,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:45,842 INFO L87 Difference]: Start difference. First operand 23285 states and 26936 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:50,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:27:50,732 INFO L93 Difference]: Finished difference Result 60086 states and 69678 transitions. [2024-11-28 04:27:50,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:27:50,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 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 242 [2024-11-28 04:27:50,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:27:50,843 INFO L225 Difference]: With dead ends: 60086 [2024-11-28 04:27:50,843 INFO L226 Difference]: Without dead ends: 36803 [2024-11-28 04:27:50,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:50,868 INFO L435 NwaCegarLoop]: 1317 mSDtfsCounter, 676 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2692 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 3066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 2692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:27:50,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 1325 Invalid, 3066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 2692 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 04:27:50,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36803 states. [2024-11-28 04:27:51,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36803 to 33799. [2024-11-28 04:27:51,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33799 states, 33798 states have (on average 1.1530563938694598) internal successors, (38971), 33798 states have internal predecessors, (38971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:51,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33799 states to 33799 states and 38971 transitions. [2024-11-28 04:27:51,469 INFO L78 Accepts]: Start accepts. Automaton has 33799 states and 38971 transitions. Word has length 242 [2024-11-28 04:27:51,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:27:51,471 INFO L471 AbstractCegarLoop]: Abstraction has 33799 states and 38971 transitions. [2024-11-28 04:27:51,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:51,471 INFO L276 IsEmpty]: Start isEmpty. Operand 33799 states and 38971 transitions. [2024-11-28 04:27:51,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-28 04:27:51,478 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:27:51,478 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:27:51,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:27:51,478 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:27:51,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:51,479 INFO L85 PathProgramCache]: Analyzing trace with hash -400405687, now seen corresponding path program 1 times [2024-11-28 04:27:51,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:51,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284351226] [2024-11-28 04:27:51,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:27:51,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:51,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:27:52,280 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-28 04:27:52,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:52,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284351226] [2024-11-28 04:27:52,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284351226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:52,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:52,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:27:52,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706039963] [2024-11-28 04:27:52,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:52,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:27:52,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:52,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:27:52,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:52,283 INFO L87 Difference]: Start difference. First operand 33799 states and 38971 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:56,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:27:56,388 INFO L93 Difference]: Finished difference Result 78861 states and 90211 transitions. [2024-11-28 04:27:56,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:27:56,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 292 [2024-11-28 04:27:56,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:27:56,458 INFO L225 Difference]: With dead ends: 78861 [2024-11-28 04:27:56,459 INFO L226 Difference]: Without dead ends: 45064 [2024-11-28 04:27:56,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:56,485 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 819 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2330 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 2330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:27:56,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 205 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 2330 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-28 04:27:56,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45064 states. [2024-11-28 04:27:56,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45064 to 40558. [2024-11-28 04:27:56,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40558 states, 40557 states have (on average 1.1331459427472446) internal successors, (45957), 40557 states have internal predecessors, (45957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:57,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40558 states to 40558 states and 45957 transitions. [2024-11-28 04:27:57,049 INFO L78 Accepts]: Start accepts. Automaton has 40558 states and 45957 transitions. Word has length 292 [2024-11-28 04:27:57,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:27:57,049 INFO L471 AbstractCegarLoop]: Abstraction has 40558 states and 45957 transitions. [2024-11-28 04:27:57,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:27:57,050 INFO L276 IsEmpty]: Start isEmpty. Operand 40558 states and 45957 transitions. [2024-11-28 04:27:57,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-11-28 04:27:57,056 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:27:57,056 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 04:27:57,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:27:57,057 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:27:57,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:27:57,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2085073940, now seen corresponding path program 1 times [2024-11-28 04:27:57,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:27:57,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261802834] [2024-11-28 04:27:57,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:27:57,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:27:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:27:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:27:57,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:27:57,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261802834] [2024-11-28 04:27:57,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261802834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:27:57,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:27:57,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:27:57,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117497598] [2024-11-28 04:27:57,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:27:57,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:27:57,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:27:57,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:27:57,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:27:57,515 INFO L87 Difference]: Start difference. First operand 40558 states and 45957 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:01,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:01,454 INFO L93 Difference]: Finished difference Result 96134 states and 110249 transitions. [2024-11-28 04:28:01,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:01,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 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 314 [2024-11-28 04:28:01,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:01,525 INFO L225 Difference]: With dead ends: 96134 [2024-11-28 04:28:01,526 INFO L226 Difference]: Without dead ends: 55578 [2024-11-28 04:28:01,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:01,557 INFO L435 NwaCegarLoop]: 1208 mSDtfsCounter, 704 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:01,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1216 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-28 04:28:01,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55578 states. [2024-11-28 04:28:02,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55578 to 55578. [2024-11-28 04:28:02,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55578 states, 55577 states have (on average 1.1162351332385698) internal successors, (62037), 55577 states have internal predecessors, (62037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:02,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55578 states to 55578 states and 62037 transitions. [2024-11-28 04:28:02,376 INFO L78 Accepts]: Start accepts. Automaton has 55578 states and 62037 transitions. Word has length 314 [2024-11-28 04:28:02,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:02,377 INFO L471 AbstractCegarLoop]: Abstraction has 55578 states and 62037 transitions. [2024-11-28 04:28:02,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:02,378 INFO L276 IsEmpty]: Start isEmpty. Operand 55578 states and 62037 transitions. [2024-11-28 04:28:02,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-28 04:28:02,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:02,386 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:28:02,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:28:02,387 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:02,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:02,387 INFO L85 PathProgramCache]: Analyzing trace with hash 314874820, now seen corresponding path program 1 times [2024-11-28 04:28:02,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:02,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796596631] [2024-11-28 04:28:02,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:02,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:02,915 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-28 04:28:02,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:02,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796596631] [2024-11-28 04:28:02,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796596631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:02,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:02,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:02,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608637036] [2024-11-28 04:28:02,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:02,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:02,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:02,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:02,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:02,918 INFO L87 Difference]: Start difference. First operand 55578 states and 62037 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:08,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:08,224 INFO L93 Difference]: Finished difference Result 128427 states and 145272 transitions. [2024-11-28 04:28:08,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:08,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 346 [2024-11-28 04:28:08,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:08,290 INFO L225 Difference]: With dead ends: 128427 [2024-11-28 04:28:08,290 INFO L226 Difference]: Without dead ends: 69096 [2024-11-28 04:28:08,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:08,324 INFO L435 NwaCegarLoop]: 1307 mSDtfsCounter, 778 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 2854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:08,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 1315 Invalid, 2854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [620 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-28 04:28:08,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69096 states. [2024-11-28 04:28:09,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69096 to 67594. [2024-11-28 04:28:09,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67594 states, 67593 states have (on average 1.107318805201722) internal successors, (74847), 67593 states have internal predecessors, (74847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:09,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67594 states to 67594 states and 74847 transitions. [2024-11-28 04:28:09,197 INFO L78 Accepts]: Start accepts. Automaton has 67594 states and 74847 transitions. Word has length 346 [2024-11-28 04:28:09,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:09,198 INFO L471 AbstractCegarLoop]: Abstraction has 67594 states and 74847 transitions. [2024-11-28 04:28:09,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:09,199 INFO L276 IsEmpty]: Start isEmpty. Operand 67594 states and 74847 transitions. [2024-11-28 04:28:09,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-11-28 04:28:09,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:09,208 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:09,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:28:09,210 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:09,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:09,211 INFO L85 PathProgramCache]: Analyzing trace with hash -2050413354, now seen corresponding path program 1 times [2024-11-28 04:28:09,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:09,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758771238] [2024-11-28 04:28:09,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:09,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:09,637 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-28 04:28:09,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:09,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758771238] [2024-11-28 04:28:09,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758771238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:09,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:09,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:09,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457340808] [2024-11-28 04:28:09,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:09,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:09,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:09,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:09,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:09,643 INFO L87 Difference]: Start difference. First operand 67594 states and 74847 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:14,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:14,218 INFO L93 Difference]: Finished difference Result 135186 states and 149692 transitions. [2024-11-28 04:28:14,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:14,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 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 409 [2024-11-28 04:28:14,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:14,287 INFO L225 Difference]: With dead ends: 135186 [2024-11-28 04:28:14,287 INFO L226 Difference]: Without dead ends: 67594 [2024-11-28 04:28:14,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:14,317 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 684 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 2908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 491 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:14,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 219 Invalid, 2908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [491 Valid, 2417 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 04:28:14,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67594 states. [2024-11-28 04:28:15,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67594 to 67594. [2024-11-28 04:28:15,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67594 states, 67593 states have (on average 1.1030284201026734) internal successors, (74557), 67593 states have internal predecessors, (74557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:15,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67594 states to 67594 states and 74557 transitions. [2024-11-28 04:28:15,483 INFO L78 Accepts]: Start accepts. Automaton has 67594 states and 74557 transitions. Word has length 409 [2024-11-28 04:28:15,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:15,486 INFO L471 AbstractCegarLoop]: Abstraction has 67594 states and 74557 transitions. [2024-11-28 04:28:15,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:15,486 INFO L276 IsEmpty]: Start isEmpty. Operand 67594 states and 74557 transitions. [2024-11-28 04:28:15,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2024-11-28 04:28:15,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:15,515 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:15,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:28:15,516 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:15,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:15,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1353959124, now seen corresponding path program 1 times [2024-11-28 04:28:15,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:15,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186866225] [2024-11-28 04:28:15,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:15,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 424 proven. 229 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 04:28:17,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:17,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186866225] [2024-11-28 04:28:17,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186866225] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:17,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062743126] [2024-11-28 04:28:17,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:17,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:17,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:17,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:17,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:28:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:17,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:28:17,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:17,839 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2024-11-28 04:28:17,840 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:17,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062743126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:17,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:28:17,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-28 04:28:17,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366306896] [2024-11-28 04:28:17,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:17,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:17,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:17,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:17,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:28:17,847 INFO L87 Difference]: Start difference. First operand 67594 states and 74557 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:22,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:22,318 INFO L93 Difference]: Finished difference Result 150957 states and 168521 transitions. [2024-11-28 04:28:22,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:22,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 517 [2024-11-28 04:28:22,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:22,397 INFO L225 Difference]: With dead ends: 150957 [2024-11-28 04:28:22,398 INFO L226 Difference]: Without dead ends: 83365 [2024-11-28 04:28:22,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:28:22,423 INFO L435 NwaCegarLoop]: 1389 mSDtfsCounter, 645 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 2731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:22,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 1397 Invalid, 2731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 04:28:22,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83365 states. [2024-11-28 04:28:23,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83365 to 79610. [2024-11-28 04:28:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79610 states, 79609 states have (on average 1.0953284176412215) internal successors, (87198), 79609 states have internal predecessors, (87198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79610 states to 79610 states and 87198 transitions. [2024-11-28 04:28:23,577 INFO L78 Accepts]: Start accepts. Automaton has 79610 states and 87198 transitions. Word has length 517 [2024-11-28 04:28:23,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:23,578 INFO L471 AbstractCegarLoop]: Abstraction has 79610 states and 87198 transitions. [2024-11-28 04:28:23,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:23,579 INFO L276 IsEmpty]: Start isEmpty. Operand 79610 states and 87198 transitions. [2024-11-28 04:28:23,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-11-28 04:28:23,606 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:23,607 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2024-11-28 04:28:23,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:28:23,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058fff53-c942-46ed-9eca-a1b9b1013929/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:28:23,808 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:23,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:23,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1858215506, now seen corresponding path program 1 times [2024-11-28 04:28:23,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:23,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994759170] [2024-11-28 04:28:23,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:23,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:24,597 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-28 04:28:24,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:24,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994759170] [2024-11-28 04:28:24,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994759170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:24,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:24,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:24,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989595276] [2024-11-28 04:28:24,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:24,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:24,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:24,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:24,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:24,600 INFO L87 Difference]: Start difference. First operand 79610 states and 87198 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:28,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:28,985 INFO L93 Difference]: Finished difference Result 161471 states and 176728 transitions. [2024-11-28 04:28:28,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:28,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 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 545 [2024-11-28 04:28:28,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:29,103 INFO L225 Difference]: With dead ends: 161471 [2024-11-28 04:28:29,103 INFO L226 Difference]: Without dead ends: 82614 [2024-11-28 04:28:29,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:29,151 INFO L435 NwaCegarLoop]: 1172 mSDtfsCounter, 686 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 607 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:29,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 1179 Invalid, 2687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [607 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 04:28:29,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82614 states. [2024-11-28 04:28:30,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82614 to 79610. [2024-11-28 04:28:30,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79610 states, 79609 states have (on average 1.0623798816716703) internal successors, (84575), 79609 states have internal predecessors, (84575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:30,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79610 states to 79610 states and 84575 transitions. [2024-11-28 04:28:30,314 INFO L78 Accepts]: Start accepts. Automaton has 79610 states and 84575 transitions. Word has length 545 [2024-11-28 04:28:30,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:30,315 INFO L471 AbstractCegarLoop]: Abstraction has 79610 states and 84575 transitions. [2024-11-28 04:28:30,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:30,315 INFO L276 IsEmpty]: Start isEmpty. Operand 79610 states and 84575 transitions. [2024-11-28 04:28:30,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2024-11-28 04:28:30,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:30,340 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:30,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:28:30,340 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:30,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:30,341 INFO L85 PathProgramCache]: Analyzing trace with hash 73847232, now seen corresponding path program 1 times [2024-11-28 04:28:30,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:30,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86621282] [2024-11-28 04:28:30,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:30,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 779 trivial. 0 not checked. [2024-11-28 04:28:31,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:31,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86621282] [2024-11-28 04:28:31,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86621282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:31,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:31,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:31,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808672788] [2024-11-28 04:28:31,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:31,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:31,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:31,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:31,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:31,008 INFO L87 Difference]: Start difference. First operand 79610 states and 84575 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:35,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:35,982 INFO L93 Difference]: Finished difference Result 199772 states and 212820 transitions. [2024-11-28 04:28:35,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:35,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 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 593 [2024-11-28 04:28:35,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:36,096 INFO L225 Difference]: With dead ends: 199772 [2024-11-28 04:28:36,097 INFO L226 Difference]: Without dead ends: 120915 [2024-11-28 04:28:36,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:36,123 INFO L435 NwaCegarLoop]: 1302 mSDtfsCounter, 750 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 2837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:36,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1310 Invalid, 2837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 04:28:36,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120915 states. [2024-11-28 04:28:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120915 to 112654. [2024-11-28 04:28:37,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112654 states, 112653 states have (on average 1.055071769060744) internal successors, (118857), 112653 states have internal predecessors, (118857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:37,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112654 states to 112654 states and 118857 transitions. [2024-11-28 04:28:37,585 INFO L78 Accepts]: Start accepts. Automaton has 112654 states and 118857 transitions. Word has length 593 [2024-11-28 04:28:37,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:37,585 INFO L471 AbstractCegarLoop]: Abstraction has 112654 states and 118857 transitions. [2024-11-28 04:28:37,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:37,585 INFO L276 IsEmpty]: Start isEmpty. Operand 112654 states and 118857 transitions. [2024-11-28 04:28:37,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-28 04:28:37,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:37,605 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:37,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:28:37,605 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:37,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:37,606 INFO L85 PathProgramCache]: Analyzing trace with hash 256922568, now seen corresponding path program 1 times [2024-11-28 04:28:37,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:37,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644381852] [2024-11-28 04:28:37,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:37,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:38,496 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-28 04:28:38,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:38,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644381852] [2024-11-28 04:28:38,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644381852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:38,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:38,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:38,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874527547] [2024-11-28 04:28:38,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:38,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:38,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:38,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:38,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:38,504 INFO L87 Difference]: Start difference. First operand 112654 states and 118857 transitions. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:43,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:43,731 INFO L93 Difference]: Finished difference Result 272619 states and 289015 transitions. [2024-11-28 04:28:43,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:43,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 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 700 [2024-11-28 04:28:43,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:43,892 INFO L225 Difference]: With dead ends: 272619 [2024-11-28 04:28:43,892 INFO L226 Difference]: Without dead ends: 160718 [2024-11-28 04:28:43,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:43,943 INFO L435 NwaCegarLoop]: 1180 mSDtfsCounter, 796 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 3013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:43,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1188 Invalid, 3013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:28:44,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160718 states. [2024-11-28 04:28:45,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160718 to 159967. [2024-11-28 04:28:45,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159967 states, 159966 states have (on average 1.0608066714176763) internal successors, (169693), 159966 states have internal predecessors, (169693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:45,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159967 states to 159967 states and 169693 transitions. [2024-11-28 04:28:45,964 INFO L78 Accepts]: Start accepts. Automaton has 159967 states and 169693 transitions. Word has length 700 [2024-11-28 04:28:45,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:45,965 INFO L471 AbstractCegarLoop]: Abstraction has 159967 states and 169693 transitions. [2024-11-28 04:28:45,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:45,965 INFO L276 IsEmpty]: Start isEmpty. Operand 159967 states and 169693 transitions. [2024-11-28 04:28:45,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-28 04:28:45,989 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:45,989 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:45,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:28:45,990 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:45,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:45,990 INFO L85 PathProgramCache]: Analyzing trace with hash 815505428, now seen corresponding path program 1 times [2024-11-28 04:28:45,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:45,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077675517] [2024-11-28 04:28:45,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:45,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:46,796 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-28 04:28:46,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:46,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077675517] [2024-11-28 04:28:46,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077675517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:46,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:46,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:46,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168404951] [2024-11-28 04:28:46,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:46,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:46,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:46,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:46,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:46,798 INFO L87 Difference]: Start difference. First operand 159967 states and 169693 transitions. Second operand has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:52,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:52,185 INFO L93 Difference]: Finished difference Result 340960 states and 361047 transitions. [2024-11-28 04:28:52,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:52,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 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 703 [2024-11-28 04:28:52,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:52,417 INFO L225 Difference]: With dead ends: 340960 [2024-11-28 04:28:52,417 INFO L226 Difference]: Without dead ends: 181746 [2024-11-28 04:28:52,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:52,499 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 663 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 2896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:52,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 233 Invalid, 2896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [636 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 04:28:52,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181746 states. [2024-11-28 04:28:54,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181746 to 156963. [2024-11-28 04:28:54,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156963 states, 156962 states have (on average 1.0590333966182899) internal successors, (166228), 156962 states have internal predecessors, (166228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:55,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156963 states to 156963 states and 166228 transitions. [2024-11-28 04:28:55,165 INFO L78 Accepts]: Start accepts. Automaton has 156963 states and 166228 transitions. Word has length 703 [2024-11-28 04:28:55,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:55,166 INFO L471 AbstractCegarLoop]: Abstraction has 156963 states and 166228 transitions. [2024-11-28 04:28:55,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:55,166 INFO L276 IsEmpty]: Start isEmpty. Operand 156963 states and 166228 transitions. [2024-11-28 04:28:55,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2024-11-28 04:28:55,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:55,205 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2024-11-28 04:28:55,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:28:55,206 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:55,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:55,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1945228874, now seen corresponding path program 1 times [2024-11-28 04:28:55,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:55,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715727977] [2024-11-28 04:28:55,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:55,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:56,243 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 640 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-28 04:28:56,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:56,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715727977] [2024-11-28 04:28:56,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715727977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:56,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:56,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:56,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749790957] [2024-11-28 04:28:56,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:56,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:56,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:56,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:56,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:56,246 INFO L87 Difference]: Start difference. First operand 156963 states and 166228 transitions. Second operand has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:00,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:00,765 INFO L93 Difference]: Finished difference Result 317679 states and 336288 transitions. [2024-11-28 04:29:00,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:00,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 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 731 [2024-11-28 04:29:00,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:00,972 INFO L225 Difference]: With dead ends: 317679 [2024-11-28 04:29:00,973 INFO L226 Difference]: Without dead ends: 156212 [2024-11-28 04:29:01,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:01,033 INFO L435 NwaCegarLoop]: 1313 mSDtfsCounter, 730 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:01,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 1320 Invalid, 2306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 04:29:01,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156212 states. [2024-11-28 04:29:02,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156212 to 141943. [2024-11-28 04:29:02,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141943 states, 141942 states have (on average 1.049477955784757) internal successors, (148965), 141942 states have internal predecessors, (148965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:03,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141943 states to 141943 states and 148965 transitions. [2024-11-28 04:29:03,116 INFO L78 Accepts]: Start accepts. Automaton has 141943 states and 148965 transitions. Word has length 731 [2024-11-28 04:29:03,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:03,117 INFO L471 AbstractCegarLoop]: Abstraction has 141943 states and 148965 transitions. [2024-11-28 04:29:03,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:03,117 INFO L276 IsEmpty]: Start isEmpty. Operand 141943 states and 148965 transitions. [2024-11-28 04:29:03,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2024-11-28 04:29:03,161 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:03,162 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:03,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:29:03,162 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:03,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:03,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1176686982, now seen corresponding path program 1 times [2024-11-28 04:29:03,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:03,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949510200] [2024-11-28 04:29:03,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:03,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:03,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:04,280 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 573 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-28 04:29:04,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:04,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949510200] [2024-11-28 04:29:04,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949510200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:04,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:04,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:04,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346398252] [2024-11-28 04:29:04,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:04,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:04,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:04,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:04,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:04,283 INFO L87 Difference]: Start difference. First operand 141943 states and 148965 transitions. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:09,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:09,319 INFO L93 Difference]: Finished difference Result 282382 states and 296385 transitions. [2024-11-28 04:29:09,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:09,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 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 811 [2024-11-28 04:29:09,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:09,465 INFO L225 Difference]: With dead ends: 282382 [2024-11-28 04:29:09,465 INFO L226 Difference]: Without dead ends: 141192 [2024-11-28 04:29:09,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:09,522 INFO L435 NwaCegarLoop]: 1232 mSDtfsCounter, 392 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2184 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 2600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 2184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:09,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 1240 Invalid, 2600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 2184 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-28 04:29:09,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141192 states. [2024-11-28 04:29:11,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141192 to 132931. [2024-11-28 04:29:11,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132931 states, 132930 states have (on average 1.0301211163770405) internal successors, (136934), 132930 states have internal predecessors, (136934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:11,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132931 states to 132931 states and 136934 transitions. [2024-11-28 04:29:11,536 INFO L78 Accepts]: Start accepts. Automaton has 132931 states and 136934 transitions. Word has length 811 [2024-11-28 04:29:11,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:11,537 INFO L471 AbstractCegarLoop]: Abstraction has 132931 states and 136934 transitions. [2024-11-28 04:29:11,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:11,538 INFO L276 IsEmpty]: Start isEmpty. Operand 132931 states and 136934 transitions. [2024-11-28 04:29:11,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2024-11-28 04:29:11,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:11,594 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 04:29:11,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:29:11,594 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:11,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:11,595 INFO L85 PathProgramCache]: Analyzing trace with hash 391538255, now seen corresponding path program 1 times [2024-11-28 04:29:11,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:11,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713297637] [2024-11-28 04:29:11,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:11,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:12,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1164 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2024-11-28 04:29:12,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:12,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713297637] [2024-11-28 04:29:12,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713297637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:12,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:12,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:12,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786537557] [2024-11-28 04:29:12,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:12,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:12,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:12,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:12,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:12,671 INFO L87 Difference]: Start difference. First operand 132931 states and 136934 transitions. Second operand has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:17,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:17,346 INFO L93 Difference]: Finished difference Result 286888 states and 295970 transitions. [2024-11-28 04:29:17,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:17,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 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 832 [2024-11-28 04:29:17,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:17,510 INFO L225 Difference]: With dead ends: 286888 [2024-11-28 04:29:17,511 INFO L226 Difference]: Without dead ends: 154710 [2024-11-28 04:29:17,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:17,553 INFO L435 NwaCegarLoop]: 1114 mSDtfsCounter, 551 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2113 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 2494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 2113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:17,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1122 Invalid, 2494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 2113 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 04:29:17,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154710 states. [2024-11-28 04:29:19,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154710 to 150955. [2024-11-28 04:29:19,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150955 states, 150954 states have (on average 1.0281940193701393) internal successors, (155210), 150954 states have internal predecessors, (155210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:19,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150955 states to 150955 states and 155210 transitions. [2024-11-28 04:29:19,253 INFO L78 Accepts]: Start accepts. Automaton has 150955 states and 155210 transitions. Word has length 832 [2024-11-28 04:29:19,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:19,254 INFO L471 AbstractCegarLoop]: Abstraction has 150955 states and 155210 transitions. [2024-11-28 04:29:19,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:19,254 INFO L276 IsEmpty]: Start isEmpty. Operand 150955 states and 155210 transitions. [2024-11-28 04:29:19,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 980 [2024-11-28 04:29:19,300 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:19,301 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:19,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:29:19,301 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:19,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:19,302 INFO L85 PathProgramCache]: Analyzing trace with hash 122519266, now seen corresponding path program 1 times [2024-11-28 04:29:19,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:19,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743874267] [2024-11-28 04:29:19,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:19,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms