./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label40.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_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/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_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label40.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/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_20b636a8-4287-42a9-8c8b-ae6277d83e65/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 96878197f4120fe0a946400d7cd6a9f9a0d5774764bf69134c6af6a4800daf81 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:06:18,394 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:06:18,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:06:18,506 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:06:18,507 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:06:18,541 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:06:18,542 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:06:18,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:06:18,543 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:06:18,544 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:06:18,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:06:18,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:06:18,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:06:18,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:06:18,546 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:06:18,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:06:18,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:06:18,547 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:06:18,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:06:18,548 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:06:18,548 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:06:18,548 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:06:18,548 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:06:18,548 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:06:18,548 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:06:18,548 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:06:18,549 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:06:18,549 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:06:18,549 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:06:18,549 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:18,549 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:06:18,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:06:18,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:18,550 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:06:18,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:18,550 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:06:18,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:06:18,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:18,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:06:18,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:06:18,551 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:06:18,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:06:18,551 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:06:18,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:06:18,551 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:06:18,552 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:06:18,552 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:06:18,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:06:18,552 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_20b636a8-4287-42a9-8c8b-ae6277d83e65/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 -> 96878197f4120fe0a946400d7cd6a9f9a0d5774764bf69134c6af6a4800daf81 [2024-11-28 03:06:18,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:06:18,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:06:18,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:06:18,867 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:06:18,867 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:06:18,868 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem16_label40.c [2024-11-28 03:06:21,897 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/data/fbd8e3ad4/8c403373d8f74763a0a56ba37a3b60e0/FLAGd598ab02e [2024-11-28 03:06:22,333 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:06:22,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/sv-benchmarks/c/eca-rers2012/Problem16_label40.c [2024-11-28 03:06:22,364 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/data/fbd8e3ad4/8c403373d8f74763a0a56ba37a3b60e0/FLAGd598ab02e [2024-11-28 03:06:22,384 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/data/fbd8e3ad4/8c403373d8f74763a0a56ba37a3b60e0 [2024-11-28 03:06:22,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:06:22,391 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:06:22,394 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:06:22,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:06:22,403 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:06:22,404 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,405 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664107b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22, skipping insertion in model container [2024-11-28 03:06:22,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,479 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:06:22,743 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_20b636a8-4287-42a9-8c8b-ae6277d83e65/sv-benchmarks/c/eca-rers2012/Problem16_label40.c[6583,6596] [2024-11-28 03:06:23,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:06:23,170 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:06:23,212 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_20b636a8-4287-42a9-8c8b-ae6277d83e65/sv-benchmarks/c/eca-rers2012/Problem16_label40.c[6583,6596] [2024-11-28 03:06:23,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:06:23,458 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:06:23,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23 WrapperNode [2024-11-28 03:06:23,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:06:23,462 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:06:23,463 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:06:23,463 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:06:23,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23" (1/1) ... [2024-11-28 03:06:23,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23" (1/1) ... [2024-11-28 03:06:23,653 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-11-28 03:06:23,653 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:06:23,654 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:06:23,655 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:06:23,655 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:06:23,665 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23" (1/1) ... [2024-11-28 03:06:23,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23" (1/1) ... [2024-11-28 03:06:23,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23" (1/1) ... [2024-11-28 03:06:23,845 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:06:23,845 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23" (1/1) ... [2024-11-28 03:06:23,845 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23" (1/1) ... [2024-11-28 03:06:23,906 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23" (1/1) ... [2024-11-28 03:06:23,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23" (1/1) ... [2024-11-28 03:06:23,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23" (1/1) ... [2024-11-28 03:06:23,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23" (1/1) ... [2024-11-28 03:06:23,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23" (1/1) ... [2024-11-28 03:06:23,989 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:06:23,991 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:06:23,991 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:06:23,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:06:23,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23" (1/1) ... [2024-11-28 03:06:23,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:24,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:24,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:24,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:06:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:06:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:06:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:06:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:06:24,143 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:06:24,145 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:06:27,196 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-28 03:06:27,196 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:06:27,220 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:06:27,221 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:06:27,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:27 BoogieIcfgContainer [2024-11-28 03:06:27,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:06:27,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:06:27,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:06:27,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:06:27,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:06:22" (1/3) ... [2024-11-28 03:06:27,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4084a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:27, skipping insertion in model container [2024-11-28 03:06:27,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:23" (2/3) ... [2024-11-28 03:06:27,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4084a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:27, skipping insertion in model container [2024-11-28 03:06:27,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:27" (3/3) ... [2024-11-28 03:06:27,233 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem16_label40.c [2024-11-28 03:06:27,251 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:06:27,253 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem16_label40.c that has 1 procedures, 396 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:06:27,355 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:06:27,372 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;@1f1bc1b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:06:27,373 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:06:27,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:27,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 03:06:27,390 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:27,392 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:27,392 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:27,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:27,400 INFO L85 PathProgramCache]: Analyzing trace with hash -696204111, now seen corresponding path program 1 times [2024-11-28 03:06:27,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:27,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066985858] [2024-11-28 03:06:27,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:27,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:27,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:27,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066985858] [2024-11-28 03:06:27,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066985858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:27,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:27,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:06:27,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044477294] [2024-11-28 03:06:27,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:27,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:27,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:27,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:27,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:27,965 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 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 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:30,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:30,180 INFO L93 Difference]: Finished difference Result 1122 states and 2103 transitions. [2024-11-28 03:06:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:06:30,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-28 03:06:30,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:30,196 INFO L225 Difference]: With dead ends: 1122 [2024-11-28 03:06:30,197 INFO L226 Difference]: Without dead ends: 662 [2024-11-28 03:06:30,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:30,204 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 297 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:30,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 223 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:06:30,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-28 03:06:30,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-11-28 03:06:30,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.5824508320726172) internal successors, (1046), 661 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:30,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1046 transitions. [2024-11-28 03:06:30,286 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1046 transitions. Word has length 63 [2024-11-28 03:06:30,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:30,286 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1046 transitions. [2024-11-28 03:06:30,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:30,287 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1046 transitions. [2024-11-28 03:06:30,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:06:30,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:30,291 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:30,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:06:30,292 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:30,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:30,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1825534533, now seen corresponding path program 1 times [2024-11-28 03:06:30,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:30,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505908443] [2024-11-28 03:06:30,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:30,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:30,658 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:30,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:30,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505908443] [2024-11-28 03:06:30,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505908443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:30,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:30,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:06:30,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069635908] [2024-11-28 03:06:30,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:30,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:30,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:30,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:30,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:30,663 INFO L87 Difference]: Start difference. First operand 662 states and 1046 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:32,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:32,254 INFO L93 Difference]: Finished difference Result 1651 states and 2539 transitions. [2024-11-28 03:06:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:06:32,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-11-28 03:06:32,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:32,259 INFO L225 Difference]: With dead ends: 1651 [2024-11-28 03:06:32,259 INFO L226 Difference]: Without dead ends: 991 [2024-11-28 03:06:32,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:32,262 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 338 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:32,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 77 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:06:32,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2024-11-28 03:06:32,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 991. [2024-11-28 03:06:32,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 990 states have (on average 1.3767676767676769) internal successors, (1363), 990 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:32,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1363 transitions. [2024-11-28 03:06:32,323 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1363 transitions. Word has length 134 [2024-11-28 03:06:32,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:32,324 INFO L471 AbstractCegarLoop]: Abstraction has 991 states and 1363 transitions. [2024-11-28 03:06:32,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:32,324 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1363 transitions. [2024-11-28 03:06:32,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:06:32,332 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:32,332 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:32,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:06:32,333 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:32,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:32,333 INFO L85 PathProgramCache]: Analyzing trace with hash -642916736, now seen corresponding path program 1 times [2024-11-28 03:06:32,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:32,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890826137] [2024-11-28 03:06:32,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:32,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:32,598 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:32,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:32,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890826137] [2024-11-28 03:06:32,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890826137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:32,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:32,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:06:32,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384642550] [2024-11-28 03:06:32,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:32,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:32,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:32,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:32,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:32,601 INFO L87 Difference]: Start difference. First operand 991 states and 1363 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:34,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:34,330 INFO L93 Difference]: Finished difference Result 2967 states and 4084 transitions. [2024-11-28 03:06:34,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:06:34,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-11-28 03:06:34,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:34,343 INFO L225 Difference]: With dead ends: 2967 [2024-11-28 03:06:34,344 INFO L226 Difference]: Without dead ends: 1978 [2024-11-28 03:06:34,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:34,348 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 289 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:34,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 209 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:06:34,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2024-11-28 03:06:34,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1978. [2024-11-28 03:06:34,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1977 states have (on average 1.2468386444107233) internal successors, (2465), 1977 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:34,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2465 transitions. [2024-11-28 03:06:34,407 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2465 transitions. Word has length 135 [2024-11-28 03:06:34,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:34,408 INFO L471 AbstractCegarLoop]: Abstraction has 1978 states and 2465 transitions. [2024-11-28 03:06:34,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:34,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2465 transitions. [2024-11-28 03:06:34,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 03:06:34,415 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:34,415 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:34,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:06:34,416 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:34,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:34,417 INFO L85 PathProgramCache]: Analyzing trace with hash -2022847261, now seen corresponding path program 1 times [2024-11-28 03:06:34,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:34,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044964531] [2024-11-28 03:06:34,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:34,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:34,688 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:34,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:34,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044964531] [2024-11-28 03:06:34,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044964531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:34,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:34,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:06:34,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373950001] [2024-11-28 03:06:34,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:34,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:34,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:34,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:34,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:34,693 INFO L87 Difference]: Start difference. First operand 1978 states and 2465 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:36,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:36,493 INFO L93 Difference]: Finished difference Result 4612 states and 5852 transitions. [2024-11-28 03:06:36,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:06:36,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2024-11-28 03:06:36,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:36,505 INFO L225 Difference]: With dead ends: 4612 [2024-11-28 03:06:36,506 INFO L226 Difference]: Without dead ends: 2636 [2024-11-28 03:06:36,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:36,511 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 321 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:36,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 539 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:06:36,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2024-11-28 03:06:36,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2024-11-28 03:06:36,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2635 states have (on average 1.21707779886148) internal successors, (3207), 2635 states have internal predecessors, (3207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:36,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3207 transitions. [2024-11-28 03:06:36,577 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3207 transitions. Word has length 150 [2024-11-28 03:06:36,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:36,579 INFO L471 AbstractCegarLoop]: Abstraction has 2636 states and 3207 transitions. [2024-11-28 03:06:36,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:36,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3207 transitions. [2024-11-28 03:06:36,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-28 03:06:36,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:36,587 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:36,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:06:36,587 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:36,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:36,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1269062465, now seen corresponding path program 1 times [2024-11-28 03:06:36,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:36,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130831847] [2024-11-28 03:06:36,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:36,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:37,074 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-28 03:06:37,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:37,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130831847] [2024-11-28 03:06:37,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130831847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:37,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:37,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:06:37,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609734852] [2024-11-28 03:06:37,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:37,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:37,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:37,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:37,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:37,079 INFO L87 Difference]: Start difference. First operand 2636 states and 3207 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:38,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:38,867 INFO L93 Difference]: Finished difference Result 6586 states and 8078 transitions. [2024-11-28 03:06:38,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:06:38,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 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 335 [2024-11-28 03:06:38,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:38,880 INFO L225 Difference]: With dead ends: 6586 [2024-11-28 03:06:38,881 INFO L226 Difference]: Without dead ends: 3294 [2024-11-28 03:06:38,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:38,885 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 358 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:38,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 156 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:06:38,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2024-11-28 03:06:38,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3294. [2024-11-28 03:06:38,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3294 states, 3293 states have (on average 1.0652900091102337) internal successors, (3508), 3293 states have internal predecessors, (3508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:38,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3294 states to 3294 states and 3508 transitions. [2024-11-28 03:06:38,965 INFO L78 Accepts]: Start accepts. Automaton has 3294 states and 3508 transitions. Word has length 335 [2024-11-28 03:06:38,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:38,965 INFO L471 AbstractCegarLoop]: Abstraction has 3294 states and 3508 transitions. [2024-11-28 03:06:38,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:38,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3294 states and 3508 transitions. [2024-11-28 03:06:38,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2024-11-28 03:06:38,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:38,976 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 03:06:38,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:06:38,976 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:38,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:38,977 INFO L85 PathProgramCache]: Analyzing trace with hash 315077949, now seen corresponding path program 1 times [2024-11-28 03:06:38,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:38,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824243950] [2024-11-28 03:06:38,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:38,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:39,702 INFO L134 CoverageAnalysis]: Checked inductivity of 851 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2024-11-28 03:06:39,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:39,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824243950] [2024-11-28 03:06:39,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824243950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:39,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:39,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:06:39,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709791132] [2024-11-28 03:06:39,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:39,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:39,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:39,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:39,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:39,708 INFO L87 Difference]: Start difference. First operand 3294 states and 3508 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 2 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:41,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:41,038 INFO L93 Difference]: Finished difference Result 9549 states and 10185 transitions. [2024-11-28 03:06:41,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:06:41,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 2 states have internal predecessors, (226), 0 states have call successors, (0), 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 501 [2024-11-28 03:06:41,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:41,060 INFO L225 Difference]: With dead ends: 9549 [2024-11-28 03:06:41,060 INFO L226 Difference]: Without dead ends: 6257 [2024-11-28 03:06:41,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:41,067 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 240 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:41,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 71 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:06:41,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6257 states. [2024-11-28 03:06:41,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6257 to 6255. [2024-11-28 03:06:41,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6255 states, 6254 states have (on average 1.0606012152222577) internal successors, (6633), 6254 states have internal predecessors, (6633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:41,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6255 states to 6255 states and 6633 transitions. [2024-11-28 03:06:41,203 INFO L78 Accepts]: Start accepts. Automaton has 6255 states and 6633 transitions. Word has length 501 [2024-11-28 03:06:41,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:41,203 INFO L471 AbstractCegarLoop]: Abstraction has 6255 states and 6633 transitions. [2024-11-28 03:06:41,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 2 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:41,204 INFO L276 IsEmpty]: Start isEmpty. Operand 6255 states and 6633 transitions. [2024-11-28 03:06:41,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2024-11-28 03:06:41,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:41,217 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-28 03:06:41,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:06:41,218 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:41,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:41,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1452955206, now seen corresponding path program 1 times [2024-11-28 03:06:41,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:41,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117111575] [2024-11-28 03:06:41,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:41,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:42,457 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-28 03:06:42,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:42,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117111575] [2024-11-28 03:06:42,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117111575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:42,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:42,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:06:42,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167019969] [2024-11-28 03:06:42,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:42,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:06:42,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:42,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:06:42,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:06:42,460 INFO L87 Difference]: Start difference. First operand 6255 states and 6633 transitions. Second operand has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:43,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:43,911 INFO L93 Difference]: Finished difference Result 12179 states and 12932 transitions. [2024-11-28 03:06:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:06:43,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 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 525 [2024-11-28 03:06:43,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:43,927 INFO L225 Difference]: With dead ends: 12179 [2024-11-28 03:06:43,927 INFO L226 Difference]: Without dead ends: 6255 [2024-11-28 03:06:43,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:06:43,935 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 127 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:43,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 126 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:06:43,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6255 states. [2024-11-28 03:06:44,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6255 to 6255. [2024-11-28 03:06:44,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6255 states, 6254 states have (on average 1.0604413175567637) internal successors, (6632), 6254 states have internal predecessors, (6632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:44,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6255 states to 6255 states and 6632 transitions. [2024-11-28 03:06:44,090 INFO L78 Accepts]: Start accepts. Automaton has 6255 states and 6632 transitions. Word has length 525 [2024-11-28 03:06:44,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:44,094 INFO L471 AbstractCegarLoop]: Abstraction has 6255 states and 6632 transitions. [2024-11-28 03:06:44,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:44,094 INFO L276 IsEmpty]: Start isEmpty. Operand 6255 states and 6632 transitions. [2024-11-28 03:06:44,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2024-11-28 03:06:44,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:44,120 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 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] [2024-11-28 03:06:44,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:06:44,120 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:44,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:44,122 INFO L85 PathProgramCache]: Analyzing trace with hash 590277590, now seen corresponding path program 1 times [2024-11-28 03:06:44,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:44,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482587856] [2024-11-28 03:06:44,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:44,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:44,848 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 720 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-11-28 03:06:44,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:44,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482587856] [2024-11-28 03:06:44,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482587856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:44,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:44,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:06:44,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367181028] [2024-11-28 03:06:44,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:44,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:44,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:44,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:44,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:44,855 INFO L87 Difference]: Start difference. First operand 6255 states and 6632 transitions. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:46,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:46,166 INFO L93 Difference]: Finished difference Result 15140 states and 16162 transitions. [2024-11-28 03:06:46,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:06:46,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 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 640 [2024-11-28 03:06:46,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:46,191 INFO L225 Difference]: With dead ends: 15140 [2024-11-28 03:06:46,195 INFO L226 Difference]: Without dead ends: 9216 [2024-11-28 03:06:46,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:46,201 INFO L435 NwaCegarLoop]: 420 mSDtfsCounter, 219 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:46,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 426 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:06:46,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9216 states. [2024-11-28 03:06:46,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9216 to 8887. [2024-11-28 03:06:46,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8887 states, 8886 states have (on average 1.0481656538374973) internal successors, (9314), 8886 states have internal predecessors, (9314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:46,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8887 states to 8887 states and 9314 transitions. [2024-11-28 03:06:46,369 INFO L78 Accepts]: Start accepts. Automaton has 8887 states and 9314 transitions. Word has length 640 [2024-11-28 03:06:46,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:46,370 INFO L471 AbstractCegarLoop]: Abstraction has 8887 states and 9314 transitions. [2024-11-28 03:06:46,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:46,375 INFO L276 IsEmpty]: Start isEmpty. Operand 8887 states and 9314 transitions. [2024-11-28 03:06:46,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-28 03:06:46,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:46,390 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2024-11-28 03:06:46,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:06:46,390 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:46,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:46,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1262186544, now seen corresponding path program 1 times [2024-11-28 03:06:46,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:46,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724517639] [2024-11-28 03:06:46,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:46,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:46,957 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 769 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-28 03:06:46,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:46,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724517639] [2024-11-28 03:06:46,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724517639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:46,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:46,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:06:46,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741579245] [2024-11-28 03:06:46,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:46,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:46,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:46,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:46,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:46,962 INFO L87 Difference]: Start difference. First operand 8887 states and 9314 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 03:06:48,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:48,286 INFO L93 Difference]: Finished difference Result 20404 states and 21512 transitions. [2024-11-28 03:06:48,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:06:48,287 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 703 [2024-11-28 03:06:48,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:48,329 INFO L225 Difference]: With dead ends: 20404 [2024-11-28 03:06:48,329 INFO L226 Difference]: Without dead ends: 11848 [2024-11-28 03:06:48,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:48,338 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 186 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:48,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 55 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:06:48,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11848 states. [2024-11-28 03:06:48,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11848 to 11848. [2024-11-28 03:06:48,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11848 states, 11847 states have (on average 1.0506457330969865) internal successors, (12447), 11847 states have internal predecessors, (12447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:48,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11848 states to 11848 states and 12447 transitions. [2024-11-28 03:06:48,520 INFO L78 Accepts]: Start accepts. Automaton has 11848 states and 12447 transitions. Word has length 703 [2024-11-28 03:06:48,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:48,521 INFO L471 AbstractCegarLoop]: Abstraction has 11848 states and 12447 transitions. [2024-11-28 03:06:48,521 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 03:06:48,521 INFO L276 IsEmpty]: Start isEmpty. Operand 11848 states and 12447 transitions. [2024-11-28 03:06:48,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 994 [2024-11-28 03:06:48,538 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:48,539 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:06:48,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:06:48,539 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:48,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:48,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1525801733, now seen corresponding path program 1 times [2024-11-28 03:06:48,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:48,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323990636] [2024-11-28 03:06:48,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:48,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:50,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2043 backedges. 1017 proven. 0 refuted. 0 times theorem prover too weak. 1026 trivial. 0 not checked. [2024-11-28 03:06:50,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:50,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323990636] [2024-11-28 03:06:50,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323990636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:50,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:50,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:06:50,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355475931] [2024-11-28 03:06:50,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:50,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:50,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:50,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:50,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:50,075 INFO L87 Difference]: Start difference. First operand 11848 states and 12447 transitions. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 2 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:51,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:51,163 INFO L93 Difference]: Finished difference Result 23694 states and 24898 transitions. [2024-11-28 03:06:51,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:06:51,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 2 states have internal predecessors, (393), 0 states have call successors, (0), 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 993 [2024-11-28 03:06:51,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:51,188 INFO L225 Difference]: With dead ends: 23694 [2024-11-28 03:06:51,188 INFO L226 Difference]: Without dead ends: 12177 [2024-11-28 03:06:51,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:51,197 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 85 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:51,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 102 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:06:51,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12177 states. [2024-11-28 03:06:51,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12177 to 12177. [2024-11-28 03:06:51,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12177 states, 12176 states have (on average 1.0498521681997373) internal successors, (12783), 12176 states have internal predecessors, (12783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:51,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12177 states to 12177 states and 12783 transitions. [2024-11-28 03:06:51,404 INFO L78 Accepts]: Start accepts. Automaton has 12177 states and 12783 transitions. Word has length 993 [2024-11-28 03:06:51,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:51,406 INFO L471 AbstractCegarLoop]: Abstraction has 12177 states and 12783 transitions. [2024-11-28 03:06:51,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 2 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:51,407 INFO L276 IsEmpty]: Start isEmpty. Operand 12177 states and 12783 transitions. [2024-11-28 03:06:51,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1002 [2024-11-28 03:06:51,438 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:51,439 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:06:51,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:06:51,440 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:51,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:51,441 INFO L85 PathProgramCache]: Analyzing trace with hash 547079911, now seen corresponding path program 1 times [2024-11-28 03:06:51,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:51,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52545997] [2024-11-28 03:06:51,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:51,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:52,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2051 backedges. 1450 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2024-11-28 03:06:52,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:52,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52545997] [2024-11-28 03:06:52,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52545997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:52,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:52,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:06:52,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095515186] [2024-11-28 03:06:52,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:52,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:52,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:52,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:52,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:52,378 INFO L87 Difference]: Start difference. First operand 12177 states and 12783 transitions. Second operand has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:53,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:53,381 INFO L93 Difference]: Finished difference Result 26655 states and 28127 transitions. [2024-11-28 03:06:53,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:06:53,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 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 1001 [2024-11-28 03:06:53,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:53,412 INFO L225 Difference]: With dead ends: 26655 [2024-11-28 03:06:53,412 INFO L226 Difference]: Without dead ends: 15138 [2024-11-28 03:06:53,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:53,422 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 192 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:53,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 434 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:06:53,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15138 states. [2024-11-28 03:06:53,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15138 to 14480. [2024-11-28 03:06:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14480 states, 14479 states have (on average 1.046135782857932) internal successors, (15147), 14479 states have internal predecessors, (15147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:53,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 15147 transitions. [2024-11-28 03:06:53,668 INFO L78 Accepts]: Start accepts. Automaton has 14480 states and 15147 transitions. Word has length 1001 [2024-11-28 03:06:53,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:53,670 INFO L471 AbstractCegarLoop]: Abstraction has 14480 states and 15147 transitions. [2024-11-28 03:06:53,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:53,670 INFO L276 IsEmpty]: Start isEmpty. Operand 14480 states and 15147 transitions. [2024-11-28 03:06:53,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1012 [2024-11-28 03:06:53,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:53,687 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-28 03:06:53,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:06:53,687 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:53,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:53,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1559765063, now seen corresponding path program 1 times [2024-11-28 03:06:53,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:53,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458579069] [2024-11-28 03:06:53,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:53,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:55,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1544 backedges. 558 proven. 734 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-28 03:06:55,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:55,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458579069] [2024-11-28 03:06:55,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458579069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:06:55,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428969729] [2024-11-28 03:06:55,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:55,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:06:55,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:55,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:06:55,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:06:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:55,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:06:55,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1544 backedges. 860 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:56,632 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:06:56,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428969729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:56,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:06:56,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 03:06:56,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750014709] [2024-11-28 03:06:56,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:56,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:56,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:56,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:56,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:56,636 INFO L87 Difference]: Start difference. First operand 14480 states and 15147 transitions. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:57,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:57,632 INFO L93 Difference]: Finished difference Result 28300 states and 29625 transitions. [2024-11-28 03:06:57,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:06:57,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 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 1011 [2024-11-28 03:06:57,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:57,662 INFO L225 Difference]: With dead ends: 28300 [2024-11-28 03:06:57,662 INFO L226 Difference]: Without dead ends: 14480 [2024-11-28 03:06:57,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1015 GetRequests, 1011 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:57,672 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 95 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:57,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 377 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:06:57,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2024-11-28 03:06:57,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 14480. [2024-11-28 03:06:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14480 states, 14479 states have (on average 1.0414393259202983) internal successors, (15079), 14479 states have internal predecessors, (15079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:57,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 15079 transitions. [2024-11-28 03:06:57,836 INFO L78 Accepts]: Start accepts. Automaton has 14480 states and 15079 transitions. Word has length 1011 [2024-11-28 03:06:57,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:57,837 INFO L471 AbstractCegarLoop]: Abstraction has 14480 states and 15079 transitions. [2024-11-28 03:06:57,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:57,838 INFO L276 IsEmpty]: Start isEmpty. Operand 14480 states and 15079 transitions. [2024-11-28 03:06:57,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2024-11-28 03:06:57,855 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:57,856 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:06:57,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:06:58,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 03:06:58,056 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:58,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:58,057 INFO L85 PathProgramCache]: Analyzing trace with hash -935061708, now seen corresponding path program 1 times [2024-11-28 03:06:58,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:58,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686974887] [2024-11-28 03:06:58,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:58,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:58,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2638 backedges. 1842 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2024-11-28 03:06:58,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686974887] [2024-11-28 03:06:58,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686974887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:58,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:58,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:06:58,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046203638] [2024-11-28 03:06:58,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:58,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:58,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:58,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:58,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:58,915 INFO L87 Difference]: Start difference. First operand 14480 states and 15079 transitions. Second operand has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:00,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:00,247 INFO L93 Difference]: Finished difference Result 28300 states and 29489 transitions. [2024-11-28 03:07:00,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:00,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 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 1147 [2024-11-28 03:07:00,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:00,264 INFO L225 Difference]: With dead ends: 28300 [2024-11-28 03:07:00,264 INFO L226 Difference]: Without dead ends: 14480 [2024-11-28 03:07:00,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:00,270 INFO L435 NwaCegarLoop]: 423 mSDtfsCounter, 220 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:00,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 429 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:07:00,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2024-11-28 03:07:00,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 13493. [2024-11-28 03:07:00,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13493 states, 13492 states have (on average 1.0286095463978655) internal successors, (13878), 13492 states have internal predecessors, (13878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:00,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13493 states to 13493 states and 13878 transitions. [2024-11-28 03:07:00,431 INFO L78 Accepts]: Start accepts. Automaton has 13493 states and 13878 transitions. Word has length 1147 [2024-11-28 03:07:00,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:00,432 INFO L471 AbstractCegarLoop]: Abstraction has 13493 states and 13878 transitions. [2024-11-28 03:07:00,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand 13493 states and 13878 transitions. [2024-11-28 03:07:00,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1149 [2024-11-28 03:07:00,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:00,453 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:07:00,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:07:00,454 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:00,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:00,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1181890491, now seen corresponding path program 1 times [2024-11-28 03:07:00,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:00,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466077602] [2024-11-28 03:07:00,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:00,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:01,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2644 backedges. 831 proven. 0 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2024-11-28 03:07:01,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:01,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466077602] [2024-11-28 03:07:01,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466077602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:01,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:01,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:07:01,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576133662] [2024-11-28 03:07:01,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:01,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:01,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:01,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:01,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:01,303 INFO L87 Difference]: Start difference. First operand 13493 states and 13878 transitions. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:02,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:02,244 INFO L93 Difference]: Finished difference Result 28958 states and 29852 transitions. [2024-11-28 03:07:02,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:02,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 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 1148 [2024-11-28 03:07:02,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:02,271 INFO L225 Difference]: With dead ends: 28958 [2024-11-28 03:07:02,271 INFO L226 Difference]: Without dead ends: 14480 [2024-11-28 03:07:02,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:02,279 INFO L435 NwaCegarLoop]: 406 mSDtfsCounter, 273 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:02,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 412 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:07:02,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2024-11-28 03:07:02,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 12177. [2024-11-28 03:07:02,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12177 states, 12176 states have (on average 1.0271846254927726) internal successors, (12507), 12176 states have internal predecessors, (12507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:02,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12177 states to 12177 states and 12507 transitions. [2024-11-28 03:07:02,421 INFO L78 Accepts]: Start accepts. Automaton has 12177 states and 12507 transitions. Word has length 1148 [2024-11-28 03:07:02,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:02,423 INFO L471 AbstractCegarLoop]: Abstraction has 12177 states and 12507 transitions. [2024-11-28 03:07:02,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:02,423 INFO L276 IsEmpty]: Start isEmpty. Operand 12177 states and 12507 transitions. [2024-11-28 03:07:02,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1291 [2024-11-28 03:07:02,444 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:02,444 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:07:02,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:07:02,445 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:02,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:02,446 INFO L85 PathProgramCache]: Analyzing trace with hash 152336790, now seen corresponding path program 1 times [2024-11-28 03:07:02,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:02,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525465303] [2024-11-28 03:07:02,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:02,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:04,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2828 backedges. 2015 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2024-11-28 03:07:04,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:04,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525465303] [2024-11-28 03:07:04,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525465303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:04,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:04,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:07:04,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741351774] [2024-11-28 03:07:04,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:04,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:07:04,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:04,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:07:04,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:07:04,295 INFO L87 Difference]: Start difference. First operand 12177 states and 12507 transitions. Second operand has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:05,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:05,473 INFO L93 Difference]: Finished difference Result 23703 states and 24354 transitions. [2024-11-28 03:07:05,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:07:05,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 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 1290 [2024-11-28 03:07:05,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:05,487 INFO L225 Difference]: With dead ends: 23703 [2024-11-28 03:07:05,488 INFO L226 Difference]: Without dead ends: 12186 [2024-11-28 03:07:05,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:07:05,496 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 217 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:05,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 436 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:07:05,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12186 states. [2024-11-28 03:07:05,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12186 to 12177. [2024-11-28 03:07:05,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12177 states, 12176 states have (on average 1.0270203679369252) internal successors, (12505), 12176 states have internal predecessors, (12505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:05,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12177 states to 12177 states and 12505 transitions. [2024-11-28 03:07:05,674 INFO L78 Accepts]: Start accepts. Automaton has 12177 states and 12505 transitions. Word has length 1290 [2024-11-28 03:07:05,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:05,676 INFO L471 AbstractCegarLoop]: Abstraction has 12177 states and 12505 transitions. [2024-11-28 03:07:05,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:05,676 INFO L276 IsEmpty]: Start isEmpty. Operand 12177 states and 12505 transitions. [2024-11-28 03:07:05,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1306 [2024-11-28 03:07:05,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:05,696 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:05,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:07:05,696 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:05,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:05,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1605891050, now seen corresponding path program 1 times [2024-11-28 03:07:05,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:05,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070350342] [2024-11-28 03:07:05,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:05,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:07,128 INFO L134 CoverageAnalysis]: Checked inductivity of 3669 backedges. 2182 proven. 0 refuted. 0 times theorem prover too weak. 1487 trivial. 0 not checked. [2024-11-28 03:07:07,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:07,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070350342] [2024-11-28 03:07:07,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070350342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:07,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:07,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:07:07,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834393598] [2024-11-28 03:07:07,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:07,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:07,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:07,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:07,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:07,132 INFO L87 Difference]: Start difference. First operand 12177 states and 12505 transitions. Second operand has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:08,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:08,147 INFO L93 Difference]: Finished difference Result 24352 states and 25010 transitions. [2024-11-28 03:07:08,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:08,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 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 1305 [2024-11-28 03:07:08,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:08,160 INFO L225 Difference]: With dead ends: 24352 [2024-11-28 03:07:08,160 INFO L226 Difference]: Without dead ends: 12835 [2024-11-28 03:07:08,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:08,168 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 224 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:08,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 430 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:07:08,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12835 states. [2024-11-28 03:07:08,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12835 to 12835. [2024-11-28 03:07:08,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12835 states, 12834 states have (on average 1.0260246220975533) internal successors, (13168), 12834 states have internal predecessors, (13168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:08,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12835 states to 12835 states and 13168 transitions. [2024-11-28 03:07:08,310 INFO L78 Accepts]: Start accepts. Automaton has 12835 states and 13168 transitions. Word has length 1305 [2024-11-28 03:07:08,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:08,311 INFO L471 AbstractCegarLoop]: Abstraction has 12835 states and 13168 transitions. [2024-11-28 03:07:08,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:08,311 INFO L276 IsEmpty]: Start isEmpty. Operand 12835 states and 13168 transitions. [2024-11-28 03:07:08,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1331 [2024-11-28 03:07:08,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:08,332 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 03:07:08,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:07:08,332 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:08,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:08,333 INFO L85 PathProgramCache]: Analyzing trace with hash -123475115, now seen corresponding path program 1 times [2024-11-28 03:07:08,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:08,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868294819] [2024-11-28 03:07:08,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:08,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:09,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3207 backedges. 2224 proven. 0 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2024-11-28 03:07:09,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:09,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868294819] [2024-11-28 03:07:09,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868294819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:09,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:09,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:07:09,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632311599] [2024-11-28 03:07:09,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:09,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:07:09,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:09,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:07:09,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:07:09,933 INFO L87 Difference]: Start difference. First operand 12835 states and 13168 transitions. Second operand has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:11,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:11,104 INFO L93 Difference]: Finished difference Result 25339 states and 26007 transitions. [2024-11-28 03:07:11,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:07:11,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 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 1330 [2024-11-28 03:07:11,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:11,116 INFO L225 Difference]: With dead ends: 25339 [2024-11-28 03:07:11,116 INFO L226 Difference]: Without dead ends: 13164 [2024-11-28 03:07:11,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:07:11,123 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 120 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:11,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 553 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:07:11,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-28 03:07:11,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164. [2024-11-28 03:07:11,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.0254501253513637) internal successors, (13498), 13163 states have internal predecessors, (13498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:11,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13498 transitions. [2024-11-28 03:07:11,257 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13498 transitions. Word has length 1330 [2024-11-28 03:07:11,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:11,257 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13498 transitions. [2024-11-28 03:07:11,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:11,258 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13498 transitions. [2024-11-28 03:07:11,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1360 [2024-11-28 03:07:11,274 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:11,275 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:07:11,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:07:11,275 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:11,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:11,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1066822895, now seen corresponding path program 1 times [2024-11-28 03:07:11,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:11,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287267857] [2024-11-28 03:07:11,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:11,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:12,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3688 backedges. 960 proven. 0 refuted. 0 times theorem prover too weak. 2728 trivial. 0 not checked. [2024-11-28 03:07:12,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:12,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287267857] [2024-11-28 03:07:12,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287267857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:12,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:12,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:07:12,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050165771] [2024-11-28 03:07:12,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:12,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:12,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:12,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:12,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:12,777 INFO L87 Difference]: Start difference. First operand 13164 states and 13498 transitions. Second operand has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:13,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:13,970 INFO L93 Difference]: Finished difference Result 25997 states and 26663 transitions. [2024-11-28 03:07:13,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:13,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 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 1359 [2024-11-28 03:07:13,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:13,984 INFO L225 Difference]: With dead ends: 25997 [2024-11-28 03:07:13,985 INFO L226 Difference]: Without dead ends: 13164 [2024-11-28 03:07:13,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:13,992 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 269 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:13,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 370 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:07:14,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-28 03:07:14,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 12506. [2024-11-28 03:07:14,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12506 states, 12505 states have (on average 1.0215113954418233) internal successors, (12774), 12505 states have internal predecessors, (12774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:14,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12506 states to 12506 states and 12774 transitions. [2024-11-28 03:07:14,125 INFO L78 Accepts]: Start accepts. Automaton has 12506 states and 12774 transitions. Word has length 1359 [2024-11-28 03:07:14,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:14,127 INFO L471 AbstractCegarLoop]: Abstraction has 12506 states and 12774 transitions. [2024-11-28 03:07:14,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:14,127 INFO L276 IsEmpty]: Start isEmpty. Operand 12506 states and 12774 transitions. [2024-11-28 03:07:14,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1711 [2024-11-28 03:07:14,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:14,155 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:14,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:07:14,155 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:14,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:14,156 INFO L85 PathProgramCache]: Analyzing trace with hash -500378405, now seen corresponding path program 1 times [2024-11-28 03:07:14,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:14,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386965342] [2024-11-28 03:07:14,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:14,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 5335 backedges. 3482 proven. 202 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2024-11-28 03:07:16,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:16,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386965342] [2024-11-28 03:07:16,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386965342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:16,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89231375] [2024-11-28 03:07:16,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:16,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:16,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:16,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:16,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:07:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:16,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 1960 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:07:16,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:20,323 INFO L134 CoverageAnalysis]: Checked inductivity of 5335 backedges. 2342 proven. 201 refuted. 0 times theorem prover too weak. 2792 trivial. 0 not checked. [2024-11-28 03:07:20,324 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:07:25,482 INFO L134 CoverageAnalysis]: Checked inductivity of 5335 backedges. 2342 proven. 201 refuted. 0 times theorem prover too weak. 2792 trivial. 0 not checked. [2024-11-28 03:07:25,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89231375] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:07:25,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:07:25,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2024-11-28 03:07:25,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930752429] [2024-11-28 03:07:25,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:07:25,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:07:25,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:25,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:07:25,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:07:25,489 INFO L87 Difference]: Start difference. First operand 12506 states and 12774 transitions. Second operand has 10 states, 10 states have (on average 174.7) internal successors, (1747), 9 states have internal predecessors, (1747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:30,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:30,495 INFO L93 Difference]: Finished difference Result 25010 states and 25548 transitions. [2024-11-28 03:07:30,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:07:30,495 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 174.7) internal successors, (1747), 9 states have internal predecessors, (1747), 0 states have call successors, (0), 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 1710 [2024-11-28 03:07:30,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:30,505 INFO L225 Difference]: With dead ends: 25010 [2024-11-28 03:07:30,505 INFO L226 Difference]: Without dead ends: 13164 [2024-11-28 03:07:30,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3429 GetRequests, 3415 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:07:30,511 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 1658 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 6451 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1658 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 6589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 6451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:30,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1658 Valid, 89 Invalid, 6589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 6451 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-28 03:07:30,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-28 03:07:30,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 12835. [2024-11-28 03:07:30,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12835 states, 12834 states have (on average 1.0180769830138694) internal successors, (13066), 12834 states have internal predecessors, (13066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12835 states to 12835 states and 13066 transitions. [2024-11-28 03:07:30,609 INFO L78 Accepts]: Start accepts. Automaton has 12835 states and 13066 transitions. Word has length 1710 [2024-11-28 03:07:30,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:30,610 INFO L471 AbstractCegarLoop]: Abstraction has 12835 states and 13066 transitions. [2024-11-28 03:07:30,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.7) internal successors, (1747), 9 states have internal predecessors, (1747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:30,610 INFO L276 IsEmpty]: Start isEmpty. Operand 12835 states and 13066 transitions. [2024-11-28 03:07:30,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1766 [2024-11-28 03:07:30,636 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:30,636 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:30,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:07:30,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:30,837 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:30,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:30,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1831347317, now seen corresponding path program 1 times [2024-11-28 03:07:30,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:30,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788756927] [2024-11-28 03:07:30,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:30,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:32,896 INFO L134 CoverageAnalysis]: Checked inductivity of 6191 backedges. 2510 proven. 0 refuted. 0 times theorem prover too weak. 3681 trivial. 0 not checked. [2024-11-28 03:07:32,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:32,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788756927] [2024-11-28 03:07:32,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788756927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:32,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:32,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:07:32,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535199767] [2024-11-28 03:07:32,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:32,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:07:32,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:32,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:07:32,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:07:32,900 INFO L87 Difference]: Start difference. First operand 12835 states and 13066 transitions. Second operand has 4 states, 4 states have (on average 168.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:33,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:33,800 INFO L93 Difference]: Finished difference Result 25668 states and 26133 transitions. [2024-11-28 03:07:33,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:33,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 168.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 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 1765 [2024-11-28 03:07:33,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:33,809 INFO L225 Difference]: With dead ends: 25668 [2024-11-28 03:07:33,809 INFO L226 Difference]: Without dead ends: 13164 [2024-11-28 03:07:33,814 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 03:07:33,814 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 268 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:33,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 97 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:07:33,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-28 03:07:33,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164. [2024-11-28 03:07:33,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.0177771024842361) internal successors, (13397), 13163 states have internal predecessors, (13397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:33,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13397 transitions. [2024-11-28 03:07:33,922 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13397 transitions. Word has length 1765 [2024-11-28 03:07:33,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:33,923 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13397 transitions. [2024-11-28 03:07:33,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 168.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:33,923 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13397 transitions. [2024-11-28 03:07:33,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1829 [2024-11-28 03:07:33,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:33,993 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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] [2024-11-28 03:07:33,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:07:33,993 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:33,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:33,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1452463880, now seen corresponding path program 1 times [2024-11-28 03:07:33,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:33,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088194346] [2024-11-28 03:07:33,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:33,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:38,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6446 backedges. 3969 proven. 1226 refuted. 0 times theorem prover too weak. 1251 trivial. 0 not checked. [2024-11-28 03:07:38,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:38,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088194346] [2024-11-28 03:07:38,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088194346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:38,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105641770] [2024-11-28 03:07:38,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:38,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:38,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:38,688 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:38,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:07:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:39,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 2099 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:07:39,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:39,633 INFO L134 CoverageAnalysis]: Checked inductivity of 6446 backedges. 4252 proven. 0 refuted. 0 times theorem prover too weak. 2194 trivial. 0 not checked. [2024-11-28 03:07:39,633 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:39,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105641770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:39,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:07:39,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-28 03:07:39,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143383287] [2024-11-28 03:07:39,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:39,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:39,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:39,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:39,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:07:39,636 INFO L87 Difference]: Start difference. First operand 13164 states and 13397 transitions. Second operand has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:40,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:40,532 INFO L93 Difference]: Finished difference Result 25668 states and 26130 transitions. [2024-11-28 03:07:40,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:40,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 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 1828 [2024-11-28 03:07:40,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:40,542 INFO L225 Difference]: With dead ends: 25668 [2024-11-28 03:07:40,542 INFO L226 Difference]: Without dead ends: 13164 [2024-11-28 03:07:40,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1836 GetRequests, 1830 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:07:40,548 INFO L435 NwaCegarLoop]: 404 mSDtfsCounter, 65 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:40,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 410 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:07:40,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-28 03:07:40,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164. [2024-11-28 03:07:40,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.016257692015498) internal successors, (13377), 13163 states have internal predecessors, (13377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:40,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13377 transitions. [2024-11-28 03:07:40,663 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13377 transitions. Word has length 1828 [2024-11-28 03:07:40,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:40,665 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13377 transitions. [2024-11-28 03:07:40,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:40,665 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13377 transitions. [2024-11-28 03:07:40,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1913 [2024-11-28 03:07:40,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:40,694 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2024-11-28 03:07:40,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:07:40,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 03:07:40,894 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:40,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:40,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1437118187, now seen corresponding path program 1 times [2024-11-28 03:07:40,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:40,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299020778] [2024-11-28 03:07:40,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:40,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:44,373 INFO L134 CoverageAnalysis]: Checked inductivity of 7925 backedges. 4713 proven. 156 refuted. 0 times theorem prover too weak. 3056 trivial. 0 not checked. [2024-11-28 03:07:44,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:44,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299020778] [2024-11-28 03:07:44,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299020778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:44,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629462102] [2024-11-28 03:07:44,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:44,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:44,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:44,375 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:44,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:07:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:44,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:07:45,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:45,855 INFO L134 CoverageAnalysis]: Checked inductivity of 7925 backedges. 4752 proven. 0 refuted. 0 times theorem prover too weak. 3173 trivial. 0 not checked. [2024-11-28 03:07:45,856 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:45,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629462102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:45,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:07:45,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 03:07:45,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524107393] [2024-11-28 03:07:45,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:45,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:45,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:45,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:45,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:45,860 INFO L87 Difference]: Start difference. First operand 13164 states and 13377 transitions. Second operand has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:46,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:46,792 INFO L93 Difference]: Finished difference Result 25668 states and 26090 transitions. [2024-11-28 03:07:46,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:46,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 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 1912 [2024-11-28 03:07:46,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:46,804 INFO L225 Difference]: With dead ends: 25668 [2024-11-28 03:07:46,804 INFO L226 Difference]: Without dead ends: 13164 [2024-11-28 03:07:46,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1919 GetRequests, 1915 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:46,812 INFO L435 NwaCegarLoop]: 418 mSDtfsCounter, 120 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:46,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 424 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:07:46,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-28 03:07:46,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164. [2024-11-28 03:07:46,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.0159538099217504) internal successors, (13373), 13163 states have internal predecessors, (13373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13373 transitions. [2024-11-28 03:07:46,925 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13373 transitions. Word has length 1912 [2024-11-28 03:07:46,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:46,926 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13373 transitions. [2024-11-28 03:07:46,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:46,927 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13373 transitions. [2024-11-28 03:07:46,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1934 [2024-11-28 03:07:46,946 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:46,946 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:46,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:07:47,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 03:07:47,147 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:47,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:47,148 INFO L85 PathProgramCache]: Analyzing trace with hash 390685501, now seen corresponding path program 1 times [2024-11-28 03:07:47,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:47,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49772281] [2024-11-28 03:07:47,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:47,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 7653 backedges. 3734 proven. 0 refuted. 0 times theorem prover too weak. 3919 trivial. 0 not checked. [2024-11-28 03:07:50,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:50,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49772281] [2024-11-28 03:07:50,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49772281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:50,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:50,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:07:50,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101573935] [2024-11-28 03:07:50,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:50,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:50,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:50,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:50,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:50,105 INFO L87 Difference]: Start difference. First operand 13164 states and 13373 transitions. Second operand has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:51,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:51,289 INFO L93 Difference]: Finished difference Result 29287 states and 29763 transitions. [2024-11-28 03:07:51,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:51,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 0 states have call successors, (0), 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 1933 [2024-11-28 03:07:51,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:51,308 INFO L225 Difference]: With dead ends: 29287 [2024-11-28 03:07:51,308 INFO L226 Difference]: Without dead ends: 16783 [2024-11-28 03:07:51,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:51,316 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 209 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:51,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 48 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:07:51,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16783 states. [2024-11-28 03:07:51,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16783 to 13493. [2024-11-28 03:07:51,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13493 states, 13492 states have (on average 1.0167506670619626) internal successors, (13718), 13492 states have internal predecessors, (13718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:51,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13493 states to 13493 states and 13718 transitions. [2024-11-28 03:07:51,448 INFO L78 Accepts]: Start accepts. Automaton has 13493 states and 13718 transitions. Word has length 1933 [2024-11-28 03:07:51,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:51,449 INFO L471 AbstractCegarLoop]: Abstraction has 13493 states and 13718 transitions. [2024-11-28 03:07:51,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:51,449 INFO L276 IsEmpty]: Start isEmpty. Operand 13493 states and 13718 transitions. [2024-11-28 03:07:51,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1975 [2024-11-28 03:07:51,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:51,531 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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 03:07:51,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:07:51,531 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:51,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:51,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1060738857, now seen corresponding path program 1 times [2024-11-28 03:07:51,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:51,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601220820] [2024-11-28 03:07:51,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:51,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:54,704 INFO L134 CoverageAnalysis]: Checked inductivity of 8480 backedges. 6279 proven. 78 refuted. 0 times theorem prover too weak. 2123 trivial. 0 not checked. [2024-11-28 03:07:54,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:54,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601220820] [2024-11-28 03:07:54,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601220820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:54,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183857458] [2024-11-28 03:07:54,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:54,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:54,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:54,708 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:54,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:07:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:55,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 2293 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:07:55,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:55,665 INFO L134 CoverageAnalysis]: Checked inductivity of 8480 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 7749 trivial. 0 not checked. [2024-11-28 03:07:55,665 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:55,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183857458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:55,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:07:55,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-28 03:07:55,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440450124] [2024-11-28 03:07:55,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:55,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:55,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:55,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:55,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:55,669 INFO L87 Difference]: Start difference. First operand 13493 states and 13718 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:56,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:56,946 INFO L93 Difference]: Finished difference Result 31588 states and 32114 transitions. [2024-11-28 03:07:56,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:56,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 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 1974 [2024-11-28 03:07:56,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:56,948 INFO L225 Difference]: With dead ends: 31588 [2024-11-28 03:07:56,949 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:07:56,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1979 GetRequests, 1974 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:56,957 INFO L435 NwaCegarLoop]: 402 mSDtfsCounter, 271 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:56,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 407 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:07:56,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:07:56,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:07:56,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:56,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:07:56,958 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1974 [2024-11-28 03:07:56,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:56,959 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:07:56,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:56,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:07:56,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:07:56,962 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:07:56,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:07:57,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:57,165 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:57,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:07:58,662 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:07:58,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:07:58 BoogieIcfgContainer [2024-11-28 03:07:58,685 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:07:58,686 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:07:58,686 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:07:58,686 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:07:58,687 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:27" (3/4) ... [2024-11-28 03:07:58,689 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:07:58,734 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-28 03:07:58,736 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 03:07:58,739 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:07:58,743 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:07:58,936 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:07:58,936 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:07:58,936 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:07:58,937 INFO L158 Benchmark]: Toolchain (without parser) took 96546.03ms. Allocated memory was 117.4MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 87.5MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 251.7MB. Max. memory is 16.1GB. [2024-11-28 03:07:58,937 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:07:58,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1068.05ms. Allocated memory is still 117.4MB. Free memory was 87.3MB in the beginning and 78.0MB in the end (delta: 9.4MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2024-11-28 03:07:58,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 191.73ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 54.6MB in the end (delta: 23.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:07:58,938 INFO L158 Benchmark]: Boogie Preprocessor took 334.84ms. Allocated memory is still 117.4MB. Free memory was 54.6MB in the beginning and 59.9MB in the end (delta: -5.3MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. [2024-11-28 03:07:58,938 INFO L158 Benchmark]: RCFGBuilder took 3230.51ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 59.3MB in the beginning and 120.3MB in the end (delta: -61.1MB). Peak memory consumption was 122.6MB. Max. memory is 16.1GB. [2024-11-28 03:07:58,939 INFO L158 Benchmark]: TraceAbstraction took 91460.77ms. Allocated memory was 209.7MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 118.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 913.1MB. Max. memory is 16.1GB. [2024-11-28 03:07:58,940 INFO L158 Benchmark]: Witness Printer took 250.61ms. Allocated memory is still 1.5GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:07:58,941 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1068.05ms. Allocated memory is still 117.4MB. Free memory was 87.3MB in the beginning and 78.0MB in the end (delta: 9.4MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 191.73ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 54.6MB in the end (delta: 23.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 334.84ms. Allocated memory is still 117.4MB. Free memory was 54.6MB in the beginning and 59.9MB in the end (delta: -5.3MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. * RCFGBuilder took 3230.51ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 59.3MB in the beginning and 120.3MB in the end (delta: -61.1MB). Peak memory consumption was 122.6MB. Max. memory is 16.1GB. * TraceAbstraction took 91460.77ms. Allocated memory was 209.7MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 118.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 913.1MB. Max. memory is 16.1GB. * Witness Printer took 250.61ms. Allocated memory is still 1.5GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 206]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 89.9s, OverallIterations: 24, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 35.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6661 SdHoareTripleChecker+Valid, 32.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6661 mSDsluCounter, 6900 SdHoareTripleChecker+Invalid, 27.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 346 mSDsCounter, 2471 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26016 IncrementalHoareTripleChecker+Invalid, 28487 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2471 mSolverCounterUnsat, 6554 mSDtfsCounter, 26016 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10239 GetRequests, 10180 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14480occurred in iteration=11, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 24 MinimizatonAttempts, 8565 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 42.7s InterpolantComputationTime, 33327 NumberOfCodeBlocks, 33327 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 35007 ConstructedInterpolants, 0 QuantifiedInterpolants, 90569 SizeOfPredicates, 2 NumberOfNonLiveVariables, 9721 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 30 InterpolantComputations, 23 PerfectInterpolantSequences, 102470/105268 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1783]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a16 == 9) && (7 == a12)) || ((((a12 <= 5) && (a16 == 12)) && ((5 != a12) || (0 < ((long long) a18 + 156)))) && (a15 == 3))) || (((a12 == 6) && (a16 <= 11)) && (a15 == 3))) || ((((a16 == 11) && (5 == a12)) && (((long long) 87 + a18) == 0)) && (a15 == 3))) || ((((a16 <= 8) && (7 <= a18)) && (a12 == 8)) && (a18 <= 132))) || ((a12 == 9) && (a16 == 9))) || ((a16 <= 8) && (a12 == 9))) || (((a12 == 8) && (a16 == 12)) && (a15 == 3))) || (((a16 <= 8) && (a12 == 8)) && (((long long) a18 + 156) <= 0))) || (((a12 == 6) && (a16 <= 11)) && (4 <= a15))) || ((a12 <= 5) && (a16 == 9))) || (((a16 == 9) && (a15 <= 3)) && (a12 == 8))) || (((a12 <= 5) && (a16 <= 11)) && (4 <= a15))) || (((a12 == 9) && (a16 == 12)) && (a15 == 3))) || (((((a12 <= 5) && (7 <= a18)) && (a18 <= 132)) && (a16 <= 11)) && (a15 == 3))) || (((a16 == 9) && (a12 == 8)) && (a18 <= 132))) || (((a12 == 8) && (a16 <= 11)) && (a15 == 3))) || ((a16 <= 8) && (a15 <= 3))) || (((a12 == 9) && (a16 <= 11)) && (a15 == 3))) || (((a12 == 6) && (a16 == 12)) && (a15 == 3))) || ((a16 <= 8) && (7 == a12))) || ((((a16 == 12) && (a18 <= 132)) && (a15 == 3)) && (7 == a12))) || (((a16 <= 11) && (a15 == 3)) && (7 == a12))) RESULT: Ultimate proved your program to be correct! [2024-11-28 03:07:58,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b636a8-4287-42a9-8c8b-ae6277d83e65/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE